Hardenize Report: gmail.com

Web sites need to use encryption to help their visitors know they're in the right place, as well as provide confidentiality and content integrity. Sites that don't support HTTPS may expose sensitive data and have their pages modified and subverted.

For all sites VERY IMPORTANT medium EFFORT

HTTPS Redirection

To deploy HTTPS properly, web sites must redirect all unsafe (plaintext) traffic to the encrypted variant. This approach ensures that no sensitive data is exposed and that further security technologies can be activated.

For all sites VERY IMPORTANT low EFFORT

HTTP Strict Transport Security

HTTP Strict Transport Security (HSTS) is an HTTPS extension that instructs browsers to remember sites that use encryption and enforce strict security requirements. Without HSTS, active network attacks are easy to carry out.

For important sites VERY IMPORTANT medium EFFORT

HSTS Preloaded

HSTS Preloading is informing browsers in advance about a site's use of HSTS, which means that strict security can be enforced even on the first visit. This approach provides best HTTPS security available today.

For important sites VERY IMPORTANT medium EFFORT

Content Security Policy

Content Security Policy (CSP) is an additional security layer that enables web sites to control browser behavior, creating a safety net that can counter attacks such as cross-site scripting.

For important sites IMPORTANT high EFFORT

Email Security Overview

STARTTLS

All hosts that receive email need encryption to ensure confidentiality of email messages. Email servers thus need to support STARTTLS, as well as provide decent TLS configuration and correct certificates.

For all sites VERY IMPORTANT low EFFORT

SPF

Sender Policy Framework (SPF) enables organizations to designate servers that are allowed to send email messages on their behalf. With SPF in place, spam is easier to identify.

For important sites IMPORTANT low EFFORT

DMARC

Domain-based Message Authentication, Reporting, and Conformance (DMARC) is a mechanism that allows organizations to specify how unauthenticated email (identified using SPF and DKIM) should be handled.

For important sites IMPORTANT low EFFORT

DNS Zone

The global DNS infrastructure is organized as a series of hierarchical DNS zones. The root zone hosts a number of global and country TLDs, which in turn host further zones that are delegated to their customers. Each organization that controls a zone can delegate parts of its namespace to other zones. In this test we perform detailed inspection of a DNS zone, but only if the host being tested matches the zone.

Test passed

Everything seems to be well configured. Well done.

Nameserver Names

Nameservers can be referred to by name and by address. In this section we show the names, which can appear in the NS records, the referrals from the parent zone, and the SOA record. In some situations, servers from the parent zone respond authoritatively, in which case we will include them in the list as well.

Nameserver	Operational	IPv4	IPv6	Sources
ns1.google.com. PRIMARY 216.239.32.10 2001:4860:4802:32::a				SOA REFERRAL NS
ns2.google.com. 216.239.34.10 2001:4860:4802:34::a				REFERRAL NS
ns3.google.com. 216.239.36.10 2001:4860:4802:36::a				REFERRAL NS
ns4.google.com. 216.239.38.10 2001:4860:4802:38::a				REFERRAL NS

Nameserver Addresses

This section shows the configuration of all discovered nameservers by their IP address. To find all applicable nameservers, we inspect the parent zone nameservers for names and glue and then the tested zone nameservers for NS records. We then resolve all discovered names to IP addresses. Finally, we test each address individually.

Nameserver	Sources	Payload Size
216.239.32.10 PRIMARY ns1.google.com. PTR: ns1.google.com.	NAME, GLUE	512
216.239.34.10 ns2.google.com. PTR: ns2.google.com.	NAME, GLUE	512
216.239.36.10 ns3.google.com. PTR: ns3.google.com.	NAME, GLUE	512
216.239.38.10 ns4.google.com. PTR: ns4.google.com.	NAME, GLUE	512
2001:4860:4802:32::a PRIMARY ns1.google.com. PTR: ns1.google.com.	NAME, GLUE	512
2001:4860:4802:34::a ns2.google.com. PTR: ns2.google.com.	NAME, GLUE	512
2001:4860:4802:36::a ns3.google.com. PTR: ns3.google.com.	NAME, GLUE	512
2001:4860:4802:38::a ns4.google.com. PTR: ns4.google.com.	NAME, GLUE	512

Start of Authority (SOA) Record

Start of Authority (SOA) records contain administrative information pertaining to one DNS zone, especially the configuration that's used for zone transfers between the primary nameserver and the secondaries. Only one SOA record should exist, with all nameservers providing the same information.

The domain name of the primary nameserver for the zone. Also known as MNAME.Primary nameserver	ns1.google.com.
Email address of the persons responsible for this zone. Also known as RNAME.Admin email	dns-admin.google.com.
Zone serial or version number.Serial number	707854421
The length of time secondary nameservers should wait before querying the primary for changes.Refresh interval	900 seconds (about 15 minutes)
The length of time secondary nameservers should wait before querying an unresponsive primary again.Retry interval	900 seconds (about 15 minutes)
The length of time after which secondary nameservers should stop responding to queries for a zone, assuming no updates were obtained from the primary.Expire interval	1,800 seconds (about 30 minutes)
TTL for purposes of negative response caching. Negative cache TTL	60 seconds (about 1 minute)
Time To Live (TTL) indicates for how long a record remains valid. SOA record TTL	60 seconds (about 1 minute)

Analysis

No problems detected with the zone configuration

Excellent. This DNS zone is in a good working order. No problems detected.

Backing DNS Queries

Below are all DNS queries we submitted during the zone inspection.

	ID	Server	Transport	Question Name	Type	Status

DNS Records

Correctly functioning name servers are necessary to hold and distribute information that's necessary for your domain name to operate correctly. Examples include converting names to IP addresses, determining where email should go, and so on. More recently, the DNS is being used to communicate email and other security policies.

Test passed

Everything seems to be well configured. Well done.

DNS Records

These are the results of individual DNS queries against your nameserver for common resource record types.

Name	TTL	Type	Data
gmail.com.	300	A	172.253.63.19
gmail.com.	300	A	172.253.63.17
gmail.com.	300	A	172.253.63.83
gmail.com.	300	A	172.253.63.18
www.gmail.com.	300	A	172.253.122.19
www.gmail.com.	300	A	172.253.122.17
www.gmail.com.	300	A	172.253.122.83
www.gmail.com.	300	A	172.253.122.18
gmail.com.	300	AAAA	2607:f8b0:4004:c08:0:0:0:12
gmail.com.	300	AAAA	2607:f8b0:4004:c08:0:0:0:13
gmail.com.	300	AAAA	2607:f8b0:4004:c08:0:0:0:11
gmail.com.	300	AAAA	2607:f8b0:4004:c08:0:0:0:53
www.gmail.com.	300	AAAA	2607:f8b0:4004:c09:0:0:0:53
www.gmail.com.	300	AAAA	2607:f8b0:4004:c09:0:0:0:12
www.gmail.com.	300	AAAA	2607:f8b0:4004:c09:0:0:0:13
www.gmail.com.	300	AAAA	2607:f8b0:4004:c09:0:0:0:11
gmail.com.	86400	CAA	0 issue "pki.goog"
gmail.com.	3600	MX	40 alt4.gmail-smtp-in.l.google.com.
gmail.com.	3600	MX	20 alt2.gmail-smtp-in.l.google.com.
gmail.com.	3600	MX	10 alt1.gmail-smtp-in.l.google.com.
gmail.com.	3600	MX	5 gmail-smtp-in.l.google.com.
gmail.com.	3600	MX	30 alt3.gmail-smtp-in.l.google.com.
gmail.com.	345600	NS	ns1.google.com.
gmail.com.	345600	NS	ns4.google.com.
gmail.com.	345600	NS	ns2.google.com.
gmail.com.	345600	NS	ns3.google.com.
gmail.com.	60	SOA	ns1.google.com. dns-admin.google.com. 707854421 900 900 1800 60
gmail.com.	300	TXT	"v=spf1 redirect=_spf.google.com"
gmail.com.	300	TXT	"globalsign-smime-dv=CDYX+XFHUw2wml6/Gb8+59BsH31KzUr6c1l2BPvqKX8="
_dmarc.gmail.com.	600	TXT	"v=DMARC1; p=none; sp=quarantine; rua=mailto:mailauth-reports@google.com"
_mta-sts.gmail.com.	300	TXT	"v=STSv1; id=20190429T010101;"
_smtp._tls.gmail.com.	300	TXT	"v=TLSRPTv1;rua=mailto:sts-reports@google.com"

Backing DNS Queries

Below are all DNS queries we submitted while inspecting the resource records.

	ID	Server	Question Name	Type	Status

DNSSEC

DNSSEC is an extension of the DNS protocol that provides cryptographic assurance of the authenticity and integrity of responses; it's intended as a defense against network attackers who are able to manipulate DNS to redirect their victims to servers of their choice. DNSSEC is controversial, with the industry split largely between those who think it's essential and those who believe that it's problematic and unnecessary.

Feature not applicable, not implemented, or disabled

Your server doesn't support this feature.

Useful DNSSEC Tools

Certification Authority Authorization

CAA (RFC 8659) is a new standard that allows domain name owners to restrict which CAs are allowed to issue certificates for their domains. This can help to reduce the chance of misissuance, either accidentally or maliciously. In September 2017, CAA became mandatory for CAs to implement.

Test passed

Everything seems to be well configured. Well done.

CAA Policy Information

The DNS hostname where this policy is located.Policy host	gmail.com
The issue property tag is used to request that certificate issuers perform CAA issue restriction processing for the domain and to grant authorization to specific certificate issuers.issue	pki.goog flags: 0

Analysis

Issuance of S/MIME certificates not restricted

This policy doesn't restrict the issuance of S/MIME certificates. Consider using the `issuemail` directive to restrict which CAs, if any, can issue.

Issuance of BIMI not restricted

This policy doesn't restrict issuance of BIMI certificates. Consider using the `issuevmc` directive to restrict which CAs, if any, can issue.

CAA policy restricts issuance

Great. This domain name uses CAA to restrict which CAs are allowed to issue certificates for it.

Policy doesn't use reporting

This policy doesn't use reporting, which means that there is no way to contact you when a violation is detected. The CAA RFC defines the iodef property that can be used for this purpose. Do note that you're not guaranteed to be notified, given that CAs generally don't support notifications yet.

Email (SMTP)

An internet hostname can be served by zero or more mail servers, as specified by MX (mail exchange) DNS resource records. Each server can further resolve to multiple IP addresses, for example to handle IPv4 and IPv6 clients. Thus, in practice, hosts that wish to receive email reliably are supported by many endpoint.

Test passed

Everything seems to be well configured. Well done.

Server	Preference	Operational	STARTTLS	TLS	PKI	DNSSEC	DANE
gmail-smtp-in.l.google.com 2607:f8b0:4004:c09:0:0:0:1b PTR: bh-in-f27.1e100.net	5
gmail-smtp-in.l.google.com 172.253.122.26 PTR: bh-in-f26.1e100.net	5
alt1.gmail-smtp-in.l.google.com 2a00:1450:400b:c00:0:0:0:1a PTR: dg-in-f26.1e100.net	10
alt1.gmail-smtp-in.l.google.com 209.85.202.27 PTR: dg-in-f27.1e100.net	10
alt2.gmail-smtp-in.l.google.com 2a00:1450:400c:c0b:0:0:0:1b PTR: wa-in-x1b.1e100.net	20
alt2.gmail-smtp-in.l.google.com 64.233.184.27 PTR: wa-in-f27.1e100.net	20
alt3.gmail-smtp-in.l.google.com 2a00:1450:4025:401:0:0:0:1b PTR: ra-in-f27.1e100.net	30
alt3.gmail-smtp-in.l.google.com 142.250.27.26 PTR: ra-in-f26.1e100.net	30
alt4.gmail-smtp-in.l.google.com 2a00:1450:4013:c16:0:0:0:1a PTR: ea-in-f26.1e100.net	40
alt4.gmail-smtp-in.l.google.com 142.250.153.27 PTR: ea-in-f27.1e100.net	40

Analysis

Email servers match MTA-STS policy

Good. This host supports MTA-STS, which means that it restricts which MX servers can be used and how they are configured. We've verified that all MX servers listed here match the policy.

Some SMTP server assessments contain partial information

Comprehensive TLS assessments require many connections, which is exactly what many SMTP servers don't like. We implement a two-tier assessment approach. To give you some results as fast as possible, we perform shallow assessments that use only one connection per SMTP server. We then have a background process that performs complete assessments slowly, trying to accommodate each server individually. The results presented here contain partial information. If you come back later we may be able to provide complete assessment resuls.

Email TLS (SMTP)

Transport Layer Security (TLS) is the most widely used encryption protocol on the Internet. In combination with valid certificates, servers can establish trusted communication channels even with users who have never visited them before. Network attackers can't uncover what is being communicated, even when they can see all the traffic.

Test passed

Everything seems to be well configured. Well done.

TLS Configuration: gmail-smtp-in.l.google.com (2607:f8b0:4004:c09:0:0:0:1b)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.2
Shows cipher suite configuration for this protocol version.TLS v1.2	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits)

Analysis

TLS 1.2 supported

Good. This server supports TLS 1.2, which can provide strong security when configured correctly. This version of the TLS protocol is necessary to provide good security with a wide range of clients that don't yet support TLS 1.3.

Strong key exchange detected

Excellent. All cipher suites on this server rely on strong key exchange. The sweet spot is 2048 bits for DHE and 256 bits for ECDHE. Putting ECDHE suites first guarantees best security and best performance.

Partial results shown

SMTP assessments usually take a long time. To get you some results faster, we initially perform shallow checks. If you come back later we may be able to show you complete results.

Relaxed TLS assessment criteria applied to SMTP on port 25

We apply relaxed assessment criteria when evaluating TLS configuration of SMTP servers on port 25. This is because most delivery agents fall back to delivering via plaintext on failure to negotiate encryption. Some configuration elements that can be abused to attack other ports and protocols (e.g., SSLv2 and export cipher suites) are penalized in the same way as for other protocols. We will review this policy in the future.

TLS Configuration: gmail-smtp-in.l.google.com (172.253.122.26)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.2
Shows cipher suite configuration for this protocol version.TLS v1.2	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits)

Analysis

TLS 1.2 supported

Strong key exchange detected

Partial results shown

SMTP assessments usually take a long time. To get you some results faster, we initially perform shallow checks. If you come back later we may be able to show you complete results.

Relaxed TLS assessment criteria applied to SMTP on port 25

TLS Configuration: alt1.gmail-smtp-in.l.google.com (2a00:1450:400b:c00:0:0:0:1a)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.2
Shows cipher suite configuration for this protocol version.TLS v1.2	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits)

Analysis

TLS 1.2 supported

Strong key exchange detected

Partial results shown

SMTP assessments usually take a long time. To get you some results faster, we initially perform shallow checks. If you come back later we may be able to show you complete results.

Relaxed TLS assessment criteria applied to SMTP on port 25

TLS Configuration: alt1.gmail-smtp-in.l.google.com (209.85.202.27)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.2
Shows cipher suite configuration for this protocol version.TLS v1.2	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits)

Analysis

TLS 1.2 supported

Strong key exchange detected

Partial results shown

SMTP assessments usually take a long time. To get you some results faster, we initially perform shallow checks. If you come back later we may be able to show you complete results.

Relaxed TLS assessment criteria applied to SMTP on port 25

TLS Configuration: alt2.gmail-smtp-in.l.google.com (2a00:1450:400c:c0b:0:0:0:1b)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.2
Shows cipher suite configuration for this protocol version.TLS v1.2	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits)

Analysis

TLS 1.2 supported

Strong key exchange detected

Partial results shown

SMTP assessments usually take a long time. To get you some results faster, we initially perform shallow checks. If you come back later we may be able to show you complete results.

Relaxed TLS assessment criteria applied to SMTP on port 25

TLS Configuration: alt2.gmail-smtp-in.l.google.com (64.233.184.27)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.2
Shows cipher suite configuration for this protocol version.TLS v1.2	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits)

Analysis

TLS 1.2 supported

Strong key exchange detected

Partial results shown

SMTP assessments usually take a long time. To get you some results faster, we initially perform shallow checks. If you come back later we may be able to show you complete results.

Relaxed TLS assessment criteria applied to SMTP on port 25

TLS Configuration: alt3.gmail-smtp-in.l.google.com (2a00:1450:4025:401:0:0:0:1b)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.2
Shows cipher suite configuration for this protocol version.TLS v1.2	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits)

Analysis

TLS 1.2 supported

Strong key exchange detected

Partial results shown

SMTP assessments usually take a long time. To get you some results faster, we initially perform shallow checks. If you come back later we may be able to show you complete results.

Relaxed TLS assessment criteria applied to SMTP on port 25

TLS Configuration: alt3.gmail-smtp-in.l.google.com (142.250.27.26)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.2
Shows cipher suite configuration for this protocol version.TLS v1.2	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits)

Analysis

TLS 1.2 supported

Strong key exchange detected

Partial results shown

SMTP assessments usually take a long time. To get you some results faster, we initially perform shallow checks. If you come back later we may be able to show you complete results.

Relaxed TLS assessment criteria applied to SMTP on port 25

TLS Configuration: alt4.gmail-smtp-in.l.google.com (2a00:1450:4013:c16:0:0:0:1a)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.2
Shows cipher suite configuration for this protocol version.TLS v1.2	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits)

Analysis

TLS 1.2 supported

Strong key exchange detected

Partial results shown

SMTP assessments usually take a long time. To get you some results faster, we initially perform shallow checks. If you come back later we may be able to show you complete results.

Relaxed TLS assessment criteria applied to SMTP on port 25

TLS Configuration: alt4.gmail-smtp-in.l.google.com (142.250.153.27)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.2
Shows cipher suite configuration for this protocol version.TLS v1.2	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits)

Analysis

TLS 1.2 supported

Strong key exchange detected

Partial results shown

SMTP assessments usually take a long time. To get you some results faster, we initially perform shallow checks. If you come back later we may be able to show you complete results.

Relaxed TLS assessment criteria applied to SMTP on port 25

Email Certificates (SMTP)

A certificate is a digital document that contains a public key, some information about the entity associated with it, and a digital signature from the certificate issuer. It’s a mechanism that enables us to exchange, store, and use public keys. Being able to reliably verify the identity of a remote server is crucial in order to achieve secure encrypted communication.

Test passed

Everything seems to be well configured. Well done.

Certificate #1

Leaf certificate

mx.google.com
Issuer: Google Trust Services LLC
Not Before: 02 Dec 2024 08:36:56 UTC
Not After: 24 Feb 2025 08:36:55 UTC (expires in 1 month 26 days)
Key: EC 256 bits
Signature: SHA256withRSA
View details

Names	mx.google.com smtp.google.com aspmx.l.google.com alt1.aspmx.l.google.com alt2.aspmx.l.google.com alt3.aspmx.l.google.com alt4.aspmx.l.google.com gmail-smtp-in.l.google.com alt1.gmail-smtp-in.l.google.com alt2.gmail-smtp-in.l.google.com alt3.gmail-smtp-in.l.google.com alt4.gmail-smtp-in.l.google.com gmr-smtp-in.l.google.com alt1.gmr-smtp-in.l.google.com alt2.gmr-smtp-in.l.google.com alt3.gmr-smtp-in.l.google.com alt4.gmr-smtp-in.l.google.com mx1.smtp.goog mx2.smtp.goog mx3.smtp.goog mx4.smtp.goog aspmx2.googlemail.com aspmx3.googlemail.com aspmx4.googlemail.com aspmx5.googlemail.com gmr-mx.google.com
Subject DN	CN=mx.google.com
Subject Key Identifier	b790e0c0b24104168f1e455eb16344adcd1fa5bd
Serial	dd9caadbc8ae875c0954fa4a0e85f0df
Not Before	02 Dec 2024 08:36:56 UTC
Not After	24 Feb 2025 08:36:55 UTC
Validity period	84 days
Key Usage	digitalSignature
Extended Key Usage	serverAuth
Must Staple	No
Issuer
Issuer DN	CN=WR2, O=Google Trust Services, C=US
Certification Authority	Google Trust Services LLC
Validation Type	Domain Validation (DV)
Authority Key Identifier	keyid:de1b1eed7915d43e3724c321bbec34396d42b230
Parent Certificate	http://i.pki.goog/wr2.crt
CRL	http://c.pki.goog/wr2/oQ6nyr8F0m0.crl
OCSP	http://o.pki.goog/wr2
Certificate Transparency
Signed Certificate Timestamps	02 Dec 2024 09:36:58 UTC \| DigiCert Yeti2025 Log \| Qualified 02 Dec 2024 09:36:58 UTC \| Google 'Xenon2025h1' log \| Qualified
Fingerprints
SHA1	7d7fc07a1e5f352d53fd4c23cc782267a06b6ac7
SHA256	972d11cc3c94ab311f32243ce9c7425e9a294fef9f4aefb828e2f2ff36f6ff75
SPKI SHA256	3691b9d97a5a6cc8120ba8987c9471763bd7b8da1be35274d67402de4c0f4a09

Analysis

Strong private key

Good. The private key associated with this certificate is secure.

Strong signature algorithm

Good. This certificate uses a strong signature algorithm.

Certificate matches hostname

Good. The provided certificate matches the expected hostnames.

Certificate dates match

Good. The certificate is valid for use at this point of time.

Certificate has not been revoked

Good. This certificate has not been revoked.

Certificate satisfies Apple's CT compliance requirements

Good. This certificate satisfies Apple's CT requirements at present.

Certificate Chain

Leaf certificate

mx.google.com | 972d11c
Not After: 24 Feb 2025 08:36:55 UTC (expires in 1 month 26 days)
Authentication: EC 256 bits (SHA256withRSA)
View details

Names	mx.google.com smtp.google.com aspmx.l.google.com alt1.aspmx.l.google.com alt2.aspmx.l.google.com alt3.aspmx.l.google.com alt4.aspmx.l.google.com gmail-smtp-in.l.google.com alt1.gmail-smtp-in.l.google.com alt2.gmail-smtp-in.l.google.com alt3.gmail-smtp-in.l.google.com alt4.gmail-smtp-in.l.google.com gmr-smtp-in.l.google.com alt1.gmr-smtp-in.l.google.com alt2.gmr-smtp-in.l.google.com alt3.gmr-smtp-in.l.google.com alt4.gmr-smtp-in.l.google.com mx1.smtp.goog mx2.smtp.goog mx3.smtp.goog mx4.smtp.goog aspmx2.googlemail.com aspmx3.googlemail.com aspmx4.googlemail.com aspmx5.googlemail.com gmr-mx.google.com
Subject DN	CN=mx.google.com
Subject Key Identifier	b790e0c0b24104168f1e455eb16344adcd1fa5bd
Serial	dd9caadbc8ae875c0954fa4a0e85f0df
Not Before	02 Dec 2024 08:36:56 UTC
Not After	24 Feb 2025 08:36:55 UTC
Validity period	84 days
Key Usage	digitalSignature
Extended Key Usage	serverAuth
Must Staple	No
Issuer
Issuer DN	CN=WR2, O=Google Trust Services, C=US
Certification Authority	Google Trust Services LLC
Validation Type	Domain Validation (DV)
Authority Key Identifier	keyid:de1b1eed7915d43e3724c321bbec34396d42b230
Parent Certificate	http://i.pki.goog/wr2.crt
CRL	http://c.pki.goog/wr2/oQ6nyr8F0m0.crl
OCSP	http://o.pki.goog/wr2
Certificate Transparency
Signed Certificate Timestamps	02 Dec 2024 09:36:58 UTC \| DigiCert Yeti2025 Log \| Qualified 02 Dec 2024 09:36:58 UTC \| Google 'Xenon2025h1' log \| Qualified
Fingerprints
SHA1	7d7fc07a1e5f352d53fd4c23cc782267a06b6ac7
SHA256	972d11cc3c94ab311f32243ce9c7425e9a294fef9f4aefb828e2f2ff36f6ff75
SPKI SHA256	3691b9d97a5a6cc8120ba8987c9471763bd7b8da1be35274d67402de4c0f4a09

Intermediate certificate

WR2 | e6fe22b
Not After: 20 Feb 2029 14:00:00 UTC (expires in 4 years 1 month)
Authentication: RSA 2048 bits (SHA256withRSA)
View details

Subject DN	CN=WR2, O=Google Trust Services, C=US
Subject Key Identifier	de1b1eed7915d43e3724c321bbec34396d42b230
Serial	7ff005a07c4cded100ad9d66a5107b98
Not Before	13 Dec 2023 09:00:00 UTC
Not After	20 Feb 2029 14:00:00 UTC
Validity period	1897 days
Key Usage	digitalSignature, keyCertSign, cRLSign
Extended Key Usage	serverAuth, clientAuth
Issuer
Issuer DN	CN=GTS Root R1, O=Google Trust Services LLC, C=US
Certification Authority	Google Trust Services LLC
Validation Type	Not Applicable
Authority Key Identifier	keyid:e4af2b26711a2b4827852f52662ceff08913713e
Parent Certificate	http://i.pki.goog/r1.crt
CRL	http://c.pki.goog/r/r1.crl
CA certificate	Yes (pathlen 0)
Fingerprints
SHA1	66e4161260b100fee0de287a9a5293b4c2224ae6
SHA256	e6fe22bf45e4f0d3b85c59e02c0f495418e1eb8d3210f788d48cd5e1cb547cd4
SPKI SHA256	60fb4769fb4bc3aff4be773606734a185e78c62080dbc58571c723900e32a423

Intermediate certificate

GTS Root R1 | 3ee0278
Not After: 28 Jan 2028 00:00:42 UTC (expires in 3 years 30 days)
Authentication: RSA 4096 bits (SHA256withRSA)
View details

Subject DN	CN=GTS Root R1, O=Google Trust Services LLC, C=US
Subject Key Identifier	e4af2b26711a2b4827852f52662ceff08913713e
Serial	77bd0d6cdb36f91aea210fc4f058d30d
Not Before	19 Jun 2020 00:00:42 UTC
Not After	28 Jan 2028 00:00:42 UTC
Key Usage	digitalSignature, keyCertSign, cRLSign
Issuer
Issuer DN	CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Certification Authority	Google Trust Services LLC
Validation Type	Not Applicable
Authority Key Identifier	keyid:607b661a450d97ca89502f7d04cd34a8fffcfd4b
Parent Certificate	http://pki.goog/gsr1/gsr1.crt
CRL	http://crl.pki.goog/gsr1/gsr1.crl
OCSP	http://ocsp.pki.goog/gsr1
CA certificate	Yes (pathlen unlimited)
Fingerprints
SHA1	08745487e891c19e3078c1f2a07e452950ef36f6
SHA256	3ee0278df71fa3c125c4cd487f01d774694e6fc57e0cd94c24efd769133918e5
SPKI SHA256	871a9194f4eed5b312ff40c84c1d524aed2f778bbff25f138cf81f680a7adc67

Root certificate

GlobalSign Root CA | ebd4104
Not After: 28 Jan 2028 12:00:00 UTC (expires in 3 years 30 days)
Authentication: RSA 2048 bits (SHA1withRSA)
View details

Subject DN	CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Subject Key Identifier	607b661a450d97ca89502f7d04cd34a8fffcfd4b
Serial	40000000001154b5ac394
Not Before	01 Sep 1998 12:00:00 UTC
Not After	28 Jan 2028 12:00:00 UTC
Key Usage	keyCertSign, cRLSign
Issuer
Issuer DN	CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Certification Authority	Google Trust Services LLC
Validation Type	Self-signed
CA certificate	Yes (pathlen unlimited)
Fingerprints
SHA1	b1bc968bd4f49d622aa89a81f2150152a41d829c
SHA256	ebd41040e4bb3ec742c9e381d31ef2a41a48b6685c96e7cef3c1df6cd4331c99
SPKI SHA256	2bcee858158cf5465fc9d76f0dfa312fef25a4dca8501da9b46b67d1fbfa1b64

Analysis

Certificate chain is correct

Good. This chain contains all the right certificates and in the right order.

Email DANE (SMTP)

DNS-based Authentication of Named Entities (DANE) is a bridge between DNSSEC and TLS. In one possible scenario, DANE can be used for public key pinning, building on an existing publicly-trusted certificate. In another approach, it can be used to completely bypass the CA ecosystem and establish trust using DNSSEC alone.

Feature not applicable, not implemented, or disabled

Your server doesn't support this feature.

SPF

Sender Policy Framework (SPF) is a protocol that allows domain name owners to control which internet hosts are allowed to send email on their behalf. This simple mechanism can be used to reduce the effect of email spoofing and cut down on spam.

Test passed

Everything seems to be well configured. Well done.

SPF Policy Information Main policy

Host where this policy is located.Location	gmail.com
SPF version used by this policy.v	spf1
This modifier is intended for consolidating both authorizations and policy into a common set to be shared within a single administrative domain. redirect	_spf.google.com

Analysis

SPF policy found

Policy text: v=spf1 redirect=_spf.google.com

Location: gmail.com

SPF policy is valid

Good. Your SPF policy is syntactically valid.

Policy DNS lookups under limit

Good. Your policy stays under the limit of up to 10 DNS queries. The SPF specification Section 4.6.4. requires implementations to limit the total number of DNS queries. Policies that exceed the limit should not be used and may not work in practice.

Lookups: 4

SPF Policy Information Included policy

Host where this policy is located.Location	_spf.google.com
SPF version used by this policy.v	spf1
Evaluates SPF policy specified in another DNS location. This directive is typically used to allow hosts controlled by another organization. include	_netblocks.google.com
Evaluates SPF policy specified in another DNS location. This directive is typically used to allow hosts controlled by another organization. include	_netblocks2.google.com
Evaluates SPF policy specified in another DNS location. This directive is typically used to allow hosts controlled by another organization. include	_netblocks3.google.com
This policy element always matches. It's normally used at the end of a policy to specify the handling of hosts that don't match earlier mechanisms. ~all

SPF Policy Information Included policy

Host where this policy is located.Location	_netblocks.google.com
SPF version used by this policy.v	spf1
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	35.190.247.0/24
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	64.233.160.0/19
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	66.102.0.0/20
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	66.249.80.0/20
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	72.14.192.0/18
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	74.125.0.0/16
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	108.177.8.0/21
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	173.194.0.0/16
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	209.85.128.0/17
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	216.58.192.0/19
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	216.239.32.0/19
This policy element always matches. It's normally used at the end of a policy to specify the handling of hosts that don't match earlier mechanisms. ~all

SPF Policy Information Included policy

Host where this policy is located.Location	_netblocks2.google.com
SPF version used by this policy.v	spf1
This mechanism tests whether the IP address being tested is contained within a given IPv6 network. ip6	2001:4860:4000::/36
This mechanism tests whether the IP address being tested is contained within a given IPv6 network. ip6	2404:6800:4000::/36
This mechanism tests whether the IP address being tested is contained within a given IPv6 network. ip6	2607:f8b0:4000::/36
This mechanism tests whether the IP address being tested is contained within a given IPv6 network. ip6	2800:3f0:4000::/36
This mechanism tests whether the IP address being tested is contained within a given IPv6 network. ip6	2a00:1450:4000::/36
This mechanism tests whether the IP address being tested is contained within a given IPv6 network. ip6	2c0f:fb50:4000::/36
This policy element always matches. It's normally used at the end of a policy to specify the handling of hosts that don't match earlier mechanisms. ~all

SPF Policy Information Included policy

Host where this policy is located.Location	_netblocks3.google.com
SPF version used by this policy.v	spf1
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	172.217.0.0/19
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	172.217.32.0/20
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	172.217.128.0/19
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	172.217.160.0/20
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	172.217.192.0/19
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	172.253.56.0/21
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	172.253.112.0/20
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	108.177.96.0/19
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	35.191.0.0/16
This mechanism tests whether the IP address being tested is contained within a given IPv4 network. ip4	130.211.0.0/22
This policy element always matches. It's normally used at the end of a policy to specify the handling of hosts that don't match earlier mechanisms. ~all

DMARC

Domain-based Message Authentication, Reporting, and Conformance (DMARC) is a scalable mechanism by which a mail-originating organization can express domain-level policies and preferences for message validation, disposition, and reporting, that a mail-receiving organization can use to improve mail handling.

Feature not applicable, not implemented, or disabled

Your server doesn't support this feature.

DMARC Policy Information

The location from which we obtained this policy.Policy location	_dmarc.gmail.com
DMARC version used by this policy.v	DMARC1
Indicates the policy to be enacted by the receiver at the request of the domain owner. Possible values are: none, quarantine, and reject.p	none
Requested mail receiver policy for all subdomains. Same format as for the p tag.sp	quarantine
Addresses to which aggregate feedback is to be sent.rua	mailto:mailauth-reports@google.com

Analysis

DMARC policy found

Policy: v=DMARC1; p=none; sp=quarantine; rua=mailto:mailauth-reports@google.com

Host: _dmarc.gmail.com

Valid external destination

Permission record location: gmail.com._report._dmarc.google.com

External destination: mailto:mailauth-reports@google.com

Permission record contents: v=DMARC1

Policy is valid

Good. You have a valid DMARC policy.

Activate DMARC policy

Although syntactically valid, your DMARC policy is effectively disabled. An effective policy must set the value of the 'p' directive to either 'quarantine' or 'reject'. In addition, if the 'pct' directive is present, it must be set to a value other than zero. (The default is 100, which means to apply policy to all emails.)

MTA Strict Transport Security

SMTP Mail Transfer Agent Strict Transport Security (MTA-STS) is a mechanism enabling mail service providers to declare their ability to receive Transport Layer Security (TLS) secure SMTP connections, and to specify whether sending SMTP servers should refuse to deliver to MX hosts that do not offer TLS with a trusted server certificate.

Test passed

Everything seems to be well configured. Well done.

MTA-STS Policy Indicator

Location from which we retrieved the policy indicator.Location	_mta-sts.gmail.com
MTA-STS standard version used by this policy indicator.Version	STSv1
Unique policy identifier, whose value must change every time the underlying policy changes.ID	20190429T010101

Analysis

MTA-STS policy indicator valid

Good. Your MTA-STS policy indicator is valid.

MTA-STS Policy

The URL from which the policy was obtained.Location	https://mta-sts.gmail.com/.well-known/mta-sts.txt
Policy standard version.version	STSv1
Policy duration, which specifies how long the sending MTAs should remember and enforce the server policy for.max‑age	86,400 seconds (about 1 day)
Policy mode, which can be one of 'none', 'testing' and 'enforcing'. Guess which is best! :)mode	enforce
One 'mx' directive specifies one email server pattern that's allowed for this host.mx	gmail-smtp-in.l.google.com
One 'mx' directive specifies one email server pattern that's allowed for this host.mx	*.gmail-smtp-in.l.google.com

Analysis

MTA-STS policy is valid

Good. Your MTA-STS policy is valid.

Policy host certificate is valid

Good. Your MTA-STS policy is delivered via a web server that has a valid publicly trusted certificate. This is a necessary condition for the policy to be recognized.

Policy HTTPS response information

Status code: 200

Length: 113 bytes

Content-Type: text/plain

Certificate: mta-sts.gmail.com

Leaf certificate

gmail.com
Issuer: Google Trust Services LLC
Not Before: 02 Dec 2024 08:36:54 UTC
Not After: 24 Feb 2025 08:36:53 UTC (expires in 1 month 26 days)
Key: EC 256 bits
Signature: SHA256withRSA
View details

Names	gmail.com *.gmail.com
Subject DN	CN=gmail.com
Subject Key Identifier	0305f0a75347de51b2be35f47082d1a523a872df
Serial	1dbadc371c91daf7122ebc875d3d1a77
Not Before	02 Dec 2024 08:36:54 UTC
Not After	24 Feb 2025 08:36:53 UTC
Validity period	84 days
Key Usage	digitalSignature
Extended Key Usage	serverAuth
Must Staple	No
Issuer
Issuer DN	CN=WR2, O=Google Trust Services, C=US
Certification Authority	Google Trust Services LLC
Validation Type	Domain Validation (DV)
Authority Key Identifier	keyid:de1b1eed7915d43e3724c321bbec34396d42b230
Parent Certificate	http://i.pki.goog/wr2.crt
CRL	http://c.pki.goog/wr2/9UVbN0w5E6Y.crl
OCSP	http://o.pki.goog/wr2
Certificate Transparency
Signed Certificate Timestamps	02 Dec 2024 09:36:55 UTC \| Google 'Argon2025h1' log \| Qualified 02 Dec 2024 09:36:56 UTC \| Sectigo 'Mammoth2025h1' \| Qualified
Fingerprints
SHA1	c1e1a412986eff3e9019ba75594c1939118980aa
SHA256	b783dbc0fe7bf1d9568d6eea080f8152790f19814edd44ade6517f9c95a02188
SPKI SHA256	735e4d5b185c8d798652d5196ff3c80c35ef29dc39a6d262a6093afa1da7eccb

Analysis

Strong private key

Good. The private key associated with this certificate is secure.

Strong signature algorithm

Good. This certificate uses a strong signature algorithm.

Certificate matches hostname

Good. The provided certificate matches the expected hostnames.

Certificate dates match

Good. The certificate is valid for use at this point of time.

Certificate has not been revoked

Good. This certificate has not been revoked.

Certificate satisfies Apple's CT compliance requirements

Good. This certificate satisfies Apple's CT requirements at present.

Certificate Chain

Leaf certificate

gmail.com | b783dbc
Not After: 24 Feb 2025 08:36:53 UTC (expires in 1 month 26 days)
Authentication: EC 256 bits (SHA256withRSA)
View details

Names	gmail.com *.gmail.com
Subject DN	CN=gmail.com
Subject Key Identifier	0305f0a75347de51b2be35f47082d1a523a872df
Serial	1dbadc371c91daf7122ebc875d3d1a77
Not Before	02 Dec 2024 08:36:54 UTC
Not After	24 Feb 2025 08:36:53 UTC
Validity period	84 days
Key Usage	digitalSignature
Extended Key Usage	serverAuth
Must Staple	No
Issuer
Issuer DN	CN=WR2, O=Google Trust Services, C=US
Certification Authority	Google Trust Services LLC
Validation Type	Domain Validation (DV)
Authority Key Identifier	keyid:de1b1eed7915d43e3724c321bbec34396d42b230
Parent Certificate	http://i.pki.goog/wr2.crt
CRL	http://c.pki.goog/wr2/9UVbN0w5E6Y.crl
OCSP	http://o.pki.goog/wr2
Certificate Transparency
Signed Certificate Timestamps	02 Dec 2024 09:36:55 UTC \| Google 'Argon2025h1' log \| Qualified 02 Dec 2024 09:36:56 UTC \| Sectigo 'Mammoth2025h1' \| Qualified
Fingerprints
SHA1	c1e1a412986eff3e9019ba75594c1939118980aa
SHA256	b783dbc0fe7bf1d9568d6eea080f8152790f19814edd44ade6517f9c95a02188
SPKI SHA256	735e4d5b185c8d798652d5196ff3c80c35ef29dc39a6d262a6093afa1da7eccb

Intermediate certificate

WR2 | e6fe22b
Not After: 20 Feb 2029 14:00:00 UTC (expires in 4 years 1 month)
Authentication: RSA 2048 bits (SHA256withRSA)
View details

Subject DN	CN=WR2, O=Google Trust Services, C=US
Subject Key Identifier	de1b1eed7915d43e3724c321bbec34396d42b230
Serial	7ff005a07c4cded100ad9d66a5107b98
Not Before	13 Dec 2023 09:00:00 UTC
Not After	20 Feb 2029 14:00:00 UTC
Validity period	1897 days
Key Usage	digitalSignature, keyCertSign, cRLSign
Extended Key Usage	serverAuth, clientAuth
Issuer
Issuer DN	CN=GTS Root R1, O=Google Trust Services LLC, C=US
Certification Authority	Google Trust Services LLC
Validation Type	Not Applicable
Authority Key Identifier	keyid:e4af2b26711a2b4827852f52662ceff08913713e
Parent Certificate	http://i.pki.goog/r1.crt
CRL	http://c.pki.goog/r/r1.crl
CA certificate	Yes (pathlen 0)
Fingerprints
SHA1	66e4161260b100fee0de287a9a5293b4c2224ae6
SHA256	e6fe22bf45e4f0d3b85c59e02c0f495418e1eb8d3210f788d48cd5e1cb547cd4
SPKI SHA256	60fb4769fb4bc3aff4be773606734a185e78c62080dbc58571c723900e32a423

Intermediate certificate

GTS Root R1 | 3ee0278
Not After: 28 Jan 2028 00:00:42 UTC (expires in 3 years 30 days)
Authentication: RSA 4096 bits (SHA256withRSA)
View details

Subject DN	CN=GTS Root R1, O=Google Trust Services LLC, C=US
Subject Key Identifier	e4af2b26711a2b4827852f52662ceff08913713e
Serial	77bd0d6cdb36f91aea210fc4f058d30d
Not Before	19 Jun 2020 00:00:42 UTC
Not After	28 Jan 2028 00:00:42 UTC
Key Usage	digitalSignature, keyCertSign, cRLSign
Issuer
Issuer DN	CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Certification Authority	Google Trust Services LLC
Validation Type	Not Applicable
Authority Key Identifier	keyid:607b661a450d97ca89502f7d04cd34a8fffcfd4b
Parent Certificate	http://pki.goog/gsr1/gsr1.crt
CRL	http://crl.pki.goog/gsr1/gsr1.crl
OCSP	http://ocsp.pki.goog/gsr1
CA certificate	Yes (pathlen unlimited)
Fingerprints
SHA1	08745487e891c19e3078c1f2a07e452950ef36f6
SHA256	3ee0278df71fa3c125c4cd487f01d774694e6fc57e0cd94c24efd769133918e5
SPKI SHA256	871a9194f4eed5b312ff40c84c1d524aed2f778bbff25f138cf81f680a7adc67

Root certificate

GlobalSign Root CA | ebd4104
Not After: 28 Jan 2028 12:00:00 UTC (expires in 3 years 30 days)
Authentication: RSA 2048 bits (SHA1withRSA)
View details

Subject DN	CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Subject Key Identifier	607b661a450d97ca89502f7d04cd34a8fffcfd4b
Serial	40000000001154b5ac394
Not Before	01 Sep 1998 12:00:00 UTC
Not After	28 Jan 2028 12:00:00 UTC
Key Usage	keyCertSign, cRLSign
Issuer
Issuer DN	CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Certification Authority	Google Trust Services LLC
Validation Type	Self-signed
CA certificate	Yes (pathlen unlimited)
Fingerprints
SHA1	b1bc968bd4f49d622aa89a81f2150152a41d829c
SHA256	ebd41040e4bb3ec742c9e381d31ef2a41a48b6685c96e7cef3c1df6cd4331c99
SPKI SHA256	2bcee858158cf5465fc9d76f0dfa312fef25a4dca8501da9b46b67d1fbfa1b64

Analysis

Certificate chain is correct

Good. This chain contains all the right certificates and in the right order.

SMTP TLS Reporting

SMTP TLS Reporting (RFC 8460), or TLS-RPT for short, describes a reporting mechanism and format by which systems sending email can share statistics and specific information about potential failures with recipient domains. Recipient domains can then use this information to both detect potential attacks and diagnose unintentional misconfigurations. TLS-RPT can be used with DANE or MTA-STS.

Test passed

Everything seems to be well configured. Well done.

TLS-RPT Policy

Location from which we retrieved the policy indicator.Location	_smtp._tls.gmail.com
TLS-RPT standard version used by this policy indicator.Version	TLSRPTv1
Reporting endpoints specified in the policy.Reporting Endpoints	mailto:sts-reports@google.com

Analysis

SMTP TLS-RPT policy valid

Good. Your TLS-RPT policy is valid. SMTP TLS Reporting is a young standard that is not yet widely supported, but support is probably going to increase over time.

HTTP (80)

To observe your HTTP implementation, we submit a request to the homepage of your site on port 80, follow all redirections (even when they take us to other domain names), and record the returned HTTP headers.

Test passed

Everything seems to be well configured. Well done.

URL: http://gmail.com/

http://gmail.com/

HTTP/1.1 301 Moved Permanently

Location	https://mail.google.com/mail/u/0/
Cross-Origin-Resource-Policy	cross-origin
X-Content-Type-Options	nosniff
Server	sffe
Content-Length	230
X-XSS-Protection	0
Date	Sat, 28 Dec 2024 22:02:02 GMT
Expires	Sat, 28 Dec 2024 22:32:02 GMT
Cache-Control	public, max-age=1800
Content-Type	text/html; charset=UTF-8
Age	986

https://mail.google.com/mail/u/0/

HTTP/1.1 302 Found

Content-Type	application/binary
Vary	Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site
Location	https://accounts.google.com/ServiceLogin?service=mail&passive=1209600&osid=1&continue=https://mail.google.com/mail/u/0/&followup=https://mail.google.com/mail/u/0/&emr=1
Strict-Transport-Security	max-age=10886400; includeSubDomains
Permissions-Policy	ch-ua-arch=, ch-ua-bitness=, ch-ua-full-version=, ch-ua-full-version-list=, ch-ua-model=, ch-ua-wow64=, ch-ua-form-factors=, ch-ua-platform=, ch-ua-platform-version=*
Cross-Origin-Resource-Policy	same-site
Date	Sat, 28 Dec 2024 22:18:28 GMT
Server	ESF
Content-Length	0
X-XSS-Protection	0
X-Frame-Options	SAMEORIGIN
X-Content-Type-Options	nosniff
Alt-Svc	clear

https://accounts.google.com/ServiceLogin?service=mail&passive=1209600&osid=1&continue=https://mail.google.com/mail/u/0/&followup=https://mail.google.com/mail/u/0/&emr=1

HTTP/1.1 302 Found

Content-Type	application/binary
Set-Cookie	__Host-GAPS=1:Ox90mkEbtwYyT8NY_RTDGtvlINRniA:0yuQoxfL0eY1Mjy4; Expires=Mon, 28-Dec-2026 22:18:28 GMT; Path=/; Secure; HttpOnly; Priority=HIGH
Cache-Control	no-cache, no-store, max-age=0, must-revalidate
Pragma	no-cache
Expires	Mon, 01 Jan 1990 00:00:00 GMT
Date	Sat, 28 Dec 2024 22:18:28 GMT
Location	https://accounts.google.com/InteractiveLogin?continue=https://mail.google.com/mail/u/0/&emr=1&followup=https://mail.google.com/mail/u/0/&osid=1&passive=1209600&service=mail&ifkv=AeZLP9-jNTXINwU3Inaz1LFWj5Okf9qn6UZqfk3aojd1Qaxqp56dhQm91ZoWoqMNIS7_MWat5FXbMw
Strict-Transport-Security	max-age=31536000; includeSubDomains
Cross-Origin-Resource-Policy	cross-origin
Cross-Origin-Opener-Policy	unsafe-none
Accept-CH	Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Model, Sec-CH-UA-WoW64, Sec-CH-UA-Form-Factors, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
Permissions-Policy	ch-ua-arch=, ch-ua-bitness=, ch-ua-full-version=, ch-ua-full-version-list=, ch-ua-model=, ch-ua-wow64=, ch-ua-form-factors=, ch-ua-platform=, ch-ua-platform-version=*
Content-Security-Policy	require-trusted-types-for 'script';report-uri /_/AccountsSigninPassiveLoginHttp/cspreport
Content-Security-Policy	script-src 'report-sample' 'nonce-3Z3xM4iW2oo_8rVyMNG2ow' 'unsafe-inline';object-src 'none';base-uri 'self';report-uri /_/AccountsSigninPassiveLoginHttp/cspreport;worker-src 'self'
Content-Security-Policy	script-src 'unsafe-inline' 'unsafe-eval' blob: data: 'self' https://apis.google.com https://ssl.gstatic.com https://www.google.com https://www.googletagmanager.com https://www.gstatic.com https://www.google-analytics.com;report-uri /_/AccountsSigninPassiveLoginHttp/cspreport/allowlist
Server	ESF
Content-Length	0
X-XSS-Protection	0
X-Content-Type-Options	nosniff
Alt-Svc	h3=":443"; ma=2592000,h3-29=":443"; ma=2592000

https://accounts.google.com/InteractiveLogin?continue=https://mail.google.com/mail/u/0/&emr=1&followup=https://mail.google.com/mail/u/0/&osid=1&passive=1209600&service=mail&ifkv=AeZLP9-jNTXINwU3Inaz1LFWj5Okf9qn6UZqfk3aojd1Qaxqp56dhQm91ZoWoqMNIS7_MWat5FXbMw

HTTP/1.1 302 Moved Temporarily

Content-Type	text/html; charset=UTF-8
X-Frame-Options	DENY
Cache-Control	no-cache, no-store, max-age=0, must-revalidate
Pragma	no-cache
Expires	Mon, 01 Jan 1990 00:00:00 GMT
Date	Sat, 28 Dec 2024 22:18:28 GMT
Location	https://accounts.google.com/v3/signin/identifier?continue=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&emr=1&followup=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&ifkv=AeZLP99uj2adGQHjHAiEkkjrGou-f0P-X-4-t6mj4WnQNaH5xebbj69fOPf2HJHZyO4y8dgQIxYTPw&osid=1&passive=1209600&service=mail&flowName=GlifWebSignIn&flowEntry=ServiceLogin&dsh=S439973028%3A1735424308840523&ddm=1
Strict-Transport-Security	max-age=31536000; includeSubDomains
Content-Security-Policy	script-src 'report-sample' 'nonce-Uh0wUI_RQ57BOXnr2OztIA' 'unsafe-inline' 'unsafe-eval';object-src 'none';base-uri 'self';report-uri /cspreport
Content-Security-Policy	require-trusted-types-for 'script';report-uri /cspreport
Report-To	{"group":"coop_gse_qebhlk","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/gse_qebhlk"}]}
Cross-Origin-Opener-Policy-Report-Only	same-origin; report-to="coop_gse_qebhlk"
X-Content-Type-Options	nosniff
X-XSS-Protection	1; mode=block
Server	GSE
Alt-Svc	h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
Transfer-Encoding	chunked

https://accounts.google.com/v3/signin/identifier?continue=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&emr=1&followup=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&ifkv=AeZLP99uj2adGQHjHAiEkkjrGou-f0P-X-4-t6mj4WnQNaH5xebbj69fOPf2HJHZyO4y8dgQIxYTPw&osid=1&passive=1209600&service=mail&flowName=GlifWebSignIn&flowEntry=ServiceLogin&dsh=S439973028%3A1735424308840523&ddm=1

HTTP/1.1 200 OK

Content-Type	text/html; charset=utf-8
X-Frame-Options	DENY
Vary	Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site
x-auto-login	realm=com.google&args=service%3Dmail%26continue%3Dhttps://mail.google.com/mail/u/0/
Link	<https://workspace.google.com/gmail/>; rel="canonical"
x-ua-compatible	IE=edge
Cache-Control	no-cache, no-store, max-age=0, must-revalidate
Pragma	no-cache
Expires	Mon, 01 Jan 1990 00:00:00 GMT
Date	Sat, 28 Dec 2024 22:18:28 GMT
Strict-Transport-Security	max-age=31536000; includeSubDomains
Content-Security-Policy	script-src 'report-sample' 'nonce-4pId5Hkpa0D_qH7Ts_FY0g' 'unsafe-inline';object-src 'none';base-uri 'self';report-uri /v3/signin/_/AccountsSignInUi/cspreport;worker-src 'self'
Content-Security-Policy	script-src 'unsafe-inline' 'unsafe-eval' blob: data: 'self' https://apis.google.com https://ssl.gstatic.com https://www.google.com https://www.googletagmanager.com https://www.gstatic.com https://www.google-analytics.com https://support.google.com/inapp/ https://www.google.com/tools/feedback/ https://www.gstatic.com/inproduct_help/ https://www.gstatic.com/support/content/;report-uri /v3/signin/_/AccountsSignInUi/cspreport/allowlist
Content-Security-Policy	require-trusted-types-for 'script';report-uri /v3/signin/_/AccountsSignInUi/cspreport
Content-Security-Policy-Report-Only	script-src 'unsafe-inline' 'unsafe-eval' blob: data: https://www.google.com/recaptcha/api.js https://translate.google.com/translate_a/element.js https://ajax.googleapis.com/ajax/libs/jquery/3.6.4/jquery.min.js https://www.google.com/tools/feedback/load.js https://www.google.com/tools/feedback/open.js https://www.google.com/tools/feedback/open_to_help_guide_lazy.js https://www.google.com/tools/feedback/help_api.js https://www.gstatic.com/inproduct_help/service/lazy.min.js https://www.gstatic.com/inproduct_help/api/main.min.js https://www.gstatic.com/inproduct_help/chatsupport/chatsupport_button_v2.js https://www.gstatic.com/feedback/js/help/prod/service/lazy.min.js https://www.gstatic.com/uservoice/feedback/client/web/live/ https://www.google.com/tools/feedback/chat_load.js https://www.gstatic.com/uservoice/surveys/resources/prod/js/survey/ https://www.gstatic.com/feedback/js/ghelp/ https://www.gstatic.com/_/mss/boq-one-google/_/ https://www.gstatic.com/og/_/js/ https://apis.google.com/js/api.js https://apis.google.com/js/client.js https://www.googletagmanager.com/gtag/js https://www.google-analytics.com/analytics.js https://www.googletagmanager.com/gtag/destination https://www.gstatic.com/_/mss/boq-identity/_/js/k=boq-identity.AccountsSignInUi.en_US.r1rg6QgmKXQ.es5.O/ https://apis.google.com/_/scs/abc-static/_/js/ https://translate.googleapis.com/_/translate_http/_/js/ https://www.gstatic.com/recaptcha/releases/;report-uri /v3/signin/_/AccountsSignInUi/cspreport/fine-allowlist
Cross-Origin-Resource-Policy	same-site
Report-To	{"group":"AccountsSignInUi","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/AccountsSignInUi"}]}
Accept-CH	Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Model, Sec-CH-UA-WoW64, Sec-CH-UA-Form-Factors, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
Permissions-Policy	ch-ua-arch=, ch-ua-bitness=, ch-ua-full-version=, ch-ua-full-version-list=, ch-ua-model=, ch-ua-wow64=, ch-ua-form-factors=, ch-ua-platform=, ch-ua-platform-version=*
Cross-Origin-Opener-Policy-Report-Only	same-origin; report-to="AccountsSignInUi"
reporting-endpoints	default="/v3/signin/_/AccountsSignInUi/web-reports?context=eJwNwz9IAmEcBmD54hchDhEOYkMlGNFQd5cQDVEG7Tm0VV6HZx7EeZ1n0NagQ1FR9IeQBqEhENqSKA0UCprUO3VoqSVSCQeFGqP3gceeYON2ty0w5rblPY_Mv_rJFnEl88VELK412AuqpQbTsS02WQf3k012hBeOFkvh832LvaLrp8VGcWHjkpYw-VaiUxRuyzSP0l-ZNHxwVugJZzMV8uPId4W8GBFN2sSuZtIvBrImLSM_bNEc5qYtKqD3wKIp3Du26BCjKYtieJW3KI2DM1UawuuzKt3gibNG56i7arSL7USdOiil6xTGAUffXbeY6-0vvH9kezyTUnQrqIRk1VCMnbAeVQ1ZDa3HjUhcicn6tqwHBU7w8QLPTXC-oMb9A_yvjVM"
Server	ESF
X-XSS-Protection	0
X-Content-Type-Options	nosniff
Alt-Svc	h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
Transfer-Encoding	chunked

Analysis

HTTP redirects to HTTPS

Good. This plaintext HTTP server redirects to HTTPS.

URL: http://www.gmail.com/

http://www.gmail.com/

HTTP/1.1 301 Moved Permanently

Location	https://mail.google.com/mail/u/0/
Cross-Origin-Resource-Policy	cross-origin
X-Content-Type-Options	nosniff
Server	sffe
Content-Length	230
X-XSS-Protection	0
Date	Sat, 28 Dec 2024 21:57:11 GMT
Expires	Sat, 28 Dec 2024 22:27:11 GMT
Cache-Control	public, max-age=1800
Content-Type	text/html; charset=UTF-8
Age	1277

https://mail.google.com/mail/u/0/

HTTP/1.1 302 Found

Content-Type	application/binary
Vary	Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site
Location	https://accounts.google.com/ServiceLogin?service=mail&passive=1209600&osid=1&continue=https://mail.google.com/mail/u/0/&followup=https://mail.google.com/mail/u/0/&emr=1
Strict-Transport-Security	max-age=10886400; includeSubDomains
Cross-Origin-Resource-Policy	same-site
Permissions-Policy	ch-ua-arch=, ch-ua-bitness=, ch-ua-full-version=, ch-ua-full-version-list=, ch-ua-model=, ch-ua-wow64=, ch-ua-form-factors=, ch-ua-platform=, ch-ua-platform-version=*
Date	Sat, 28 Dec 2024 22:18:29 GMT
Server	ESF
Content-Length	0
X-XSS-Protection	0
X-Frame-Options	SAMEORIGIN
X-Content-Type-Options	nosniff
Alt-Svc	clear

https://accounts.google.com/ServiceLogin?service=mail&passive=1209600&osid=1&continue=https://mail.google.com/mail/u/0/&followup=https://mail.google.com/mail/u/0/&emr=1

HTTP/1.1 302 Found

Content-Type	application/binary
Set-Cookie	__Host-GAPS=1:jg9OwS6p3JkiOpWBgqtLgiSMVJmzMw:caDZdggErXkEglW0; Expires=Mon, 28-Dec-2026 22:18:29 GMT; Path=/; Secure; HttpOnly; Priority=HIGH
Cache-Control	no-cache, no-store, max-age=0, must-revalidate
Pragma	no-cache
Expires	Mon, 01 Jan 1990 00:00:00 GMT
Date	Sat, 28 Dec 2024 22:18:29 GMT
Location	https://accounts.google.com/InteractiveLogin?continue=https://mail.google.com/mail/u/0/&emr=1&followup=https://mail.google.com/mail/u/0/&osid=1&passive=1209600&service=mail&ifkv=AeZLP9_YqCeFvlC-ZSgoboERX9HmSAwbqBj6Jg-pgT0gVK1DToWOuvNTiWsSh7w_2SsGljB5Mqp9
Strict-Transport-Security	max-age=31536000; includeSubDomains
Cross-Origin-Resource-Policy	cross-origin
Permissions-Policy	ch-ua-arch=, ch-ua-bitness=, ch-ua-full-version=, ch-ua-full-version-list=, ch-ua-model=, ch-ua-wow64=, ch-ua-form-factors=, ch-ua-platform=, ch-ua-platform-version=*
Cross-Origin-Opener-Policy	unsafe-none
Content-Security-Policy	script-src 'report-sample' 'nonce-fzar9F9mquO1VzM2ox-5Pg' 'unsafe-inline';object-src 'none';base-uri 'self';report-uri /_/AccountsSigninPassiveLoginHttp/cspreport;worker-src 'self'
Content-Security-Policy	script-src 'unsafe-inline' 'unsafe-eval' blob: data: 'self' https://apis.google.com https://ssl.gstatic.com https://www.google.com https://www.googletagmanager.com https://www.gstatic.com https://www.google-analytics.com;report-uri /_/AccountsSigninPassiveLoginHttp/cspreport/allowlist
Content-Security-Policy	require-trusted-types-for 'script';report-uri /_/AccountsSigninPassiveLoginHttp/cspreport
Accept-CH	Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Model, Sec-CH-UA-WoW64, Sec-CH-UA-Form-Factors, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
Server	ESF
Content-Length	0
X-XSS-Protection	0
X-Content-Type-Options	nosniff
Alt-Svc	h3=":443"; ma=2592000,h3-29=":443"; ma=2592000

https://accounts.google.com/InteractiveLogin?continue=https://mail.google.com/mail/u/0/&emr=1&followup=https://mail.google.com/mail/u/0/&osid=1&passive=1209600&service=mail&ifkv=AeZLP9_YqCeFvlC-ZSgoboERX9HmSAwbqBj6Jg-pgT0gVK1DToWOuvNTiWsSh7w_2SsGljB5Mqp9

HTTP/1.1 302 Moved Temporarily

Content-Type	text/html; charset=UTF-8
X-Frame-Options	DENY
Cache-Control	no-cache, no-store, max-age=0, must-revalidate
Pragma	no-cache
Expires	Mon, 01 Jan 1990 00:00:00 GMT
Date	Sat, 28 Dec 2024 22:18:29 GMT
Location	https://accounts.google.com/v3/signin/identifier?continue=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&emr=1&followup=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&ifkv=AeZLP9_gb14LyMmtty1upuc2M_eQYKGWz-oTB949CFMes9CukWhfl-t6y6DWBXgzAk85A7R5F_Lh&osid=1&passive=1209600&service=mail&flowName=GlifWebSignIn&flowEntry=ServiceLogin&dsh=S-569378327%3A1735424309102726&ddm=1
Strict-Transport-Security	max-age=31536000; includeSubDomains
Content-Security-Policy	script-src 'report-sample' 'nonce-5FDhPLtmXYJ3E9fvtVrEsg' 'unsafe-inline' 'unsafe-eval';object-src 'none';base-uri 'self';report-uri /cspreport
Content-Security-Policy	require-trusted-types-for 'script';report-uri /cspreport
Cross-Origin-Opener-Policy-Report-Only	same-origin; report-to="coop_gse_qebhlk"
Report-To	{"group":"coop_gse_qebhlk","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/gse_qebhlk"}]}
X-Content-Type-Options	nosniff
X-XSS-Protection	1; mode=block
Server	GSE
Alt-Svc	h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
Transfer-Encoding	chunked

https://accounts.google.com/v3/signin/identifier?continue=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&emr=1&followup=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&ifkv=AeZLP9_gb14LyMmtty1upuc2M_eQYKGWz-oTB949CFMes9CukWhfl-t6y6DWBXgzAk85A7R5F_Lh&osid=1&passive=1209600&service=mail&flowName=GlifWebSignIn&flowEntry=ServiceLogin&dsh=S-569378327%3A1735424309102726&ddm=1

HTTP/1.1 200 OK

Content-Type	text/html; charset=utf-8
X-Frame-Options	DENY
Vary	Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site
x-auto-login	realm=com.google&args=service%3Dmail%26continue%3Dhttps://mail.google.com/mail/u/0/
Link	<https://workspace.google.com/gmail/>; rel="canonical"
x-ua-compatible	IE=edge
Cache-Control	no-cache, no-store, max-age=0, must-revalidate
Pragma	no-cache
Expires	Mon, 01 Jan 1990 00:00:00 GMT
Date	Sat, 28 Dec 2024 22:18:29 GMT
Strict-Transport-Security	max-age=31536000; includeSubDomains
Content-Security-Policy	script-src 'report-sample' 'nonce-q0kRoB0CsVXLIUUyoxkHrg' 'unsafe-inline';object-src 'none';base-uri 'self';report-uri /v3/signin/_/AccountsSignInUi/cspreport;worker-src 'self'
Content-Security-Policy	script-src 'unsafe-inline' 'unsafe-eval' blob: data: 'self' https://apis.google.com https://ssl.gstatic.com https://www.google.com https://www.googletagmanager.com https://www.gstatic.com https://www.google-analytics.com https://support.google.com/inapp/ https://www.google.com/tools/feedback/ https://www.gstatic.com/inproduct_help/ https://www.gstatic.com/support/content/;report-uri /v3/signin/_/AccountsSignInUi/cspreport/allowlist
Content-Security-Policy	require-trusted-types-for 'script';report-uri /v3/signin/_/AccountsSignInUi/cspreport
Content-Security-Policy-Report-Only	script-src 'unsafe-inline' 'unsafe-eval' blob: data: https://www.google.com/recaptcha/api.js https://translate.google.com/translate_a/element.js https://ajax.googleapis.com/ajax/libs/jquery/3.6.4/jquery.min.js https://www.google.com/tools/feedback/load.js https://www.google.com/tools/feedback/open.js https://www.google.com/tools/feedback/open_to_help_guide_lazy.js https://www.google.com/tools/feedback/help_api.js https://www.gstatic.com/inproduct_help/service/lazy.min.js https://www.gstatic.com/inproduct_help/api/main.min.js https://www.gstatic.com/inproduct_help/chatsupport/chatsupport_button_v2.js https://www.gstatic.com/feedback/js/help/prod/service/lazy.min.js https://www.gstatic.com/uservoice/feedback/client/web/live/ https://www.google.com/tools/feedback/chat_load.js https://www.gstatic.com/uservoice/surveys/resources/prod/js/survey/ https://www.gstatic.com/feedback/js/ghelp/ https://www.gstatic.com/_/mss/boq-one-google/_/ https://www.gstatic.com/og/_/js/ https://apis.google.com/js/api.js https://apis.google.com/js/client.js https://www.googletagmanager.com/gtag/js https://www.google-analytics.com/analytics.js https://www.googletagmanager.com/gtag/destination https://www.gstatic.com/_/mss/boq-identity/_/js/k=boq-identity.AccountsSignInUi.en_US.r1rg6QgmKXQ.es5.O/ https://apis.google.com/_/scs/abc-static/_/js/ https://translate.googleapis.com/_/translate_http/_/js/ https://www.gstatic.com/recaptcha/releases/;report-uri /v3/signin/_/AccountsSignInUi/cspreport/fine-allowlist
Permissions-Policy	ch-ua-arch=, ch-ua-bitness=, ch-ua-full-version=, ch-ua-full-version-list=, ch-ua-model=, ch-ua-wow64=, ch-ua-form-factors=, ch-ua-platform=, ch-ua-platform-version=*
Cross-Origin-Resource-Policy	same-site
Cross-Origin-Opener-Policy-Report-Only	same-origin; report-to="AccountsSignInUi"
Accept-CH	Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Model, Sec-CH-UA-WoW64, Sec-CH-UA-Form-Factors, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
Report-To	{"group":"AccountsSignInUi","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/AccountsSignInUi"}]}
reporting-endpoints	default="/v3/signin/_/AccountsSignInUi/web-reports?context=eJwNwz1IAnEYB2D5wxthDREOYkMlCNJQ52FEQ8MJbUUfEC3VXeKZQpx2nkJr5FBYFGSENAgNgdAoURZ0UNCk550O7ZFKOCj0MUW_Bx57ho3ZXbZ5r8umu--ZsP7OZnGt8MEk1Dca7AWVcoOp2JaarIOH6SY7xvP-Fsvh822LvaLzq8W8GNi6oGVMv5Upi_xNhQIY_KuQincOgx5xpmCQgKOfBnkwIlVpG7vxKn3jUrFKK-gbMUnA0pRJT-jJmDSJBycmHWEsZ1ICLx9MyuPQtEXDOLdq0SJenVl0jaeOGmVRddZoD9v7depgMF-nMA729Ra7eqln4PenvuCeCMZ2xGhIVrSothtWY4omK6HNpBZJRhOympJVked4v4_3ceOcX4xz_-jmkEQ"
Server	ESF
X-XSS-Protection	0
X-Content-Type-Options	nosniff
Alt-Svc	h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
Transfer-Encoding	chunked

Analysis

HTTP redirects to HTTPS

Good. This plaintext HTTP server redirects to HTTPS.

HTTP (443)

To observe your HTTPS implementation, we submit a request to the homepage of your site on port 443, follow all redirections (even when they take us to other domain names), and record the returned HTTP headers. We use the most recent set of headers returned from the tested hostname for further tests such as HSTS and HPKP.

Test passed

Everything seems to be well configured. Well done.

URL: https://gmail.com/

https://gmail.com/

HTTP/1.1 301 Moved Permanently

Location	https://mail.google.com/mail/u/0/
Cross-Origin-Resource-Policy	cross-origin
X-Content-Type-Options	nosniff
Server	sffe
Content-Length	230
X-XSS-Protection	0
Date	Sat, 28 Dec 2024 22:05:56 GMT
Expires	Sat, 28 Dec 2024 22:35:56 GMT
Cache-Control	public, max-age=1800
Content-Type	text/html; charset=UTF-8
Age	753
Alt-Svc	clear

https://mail.google.com/mail/u/0/

HTTP/1.1 302 Found

Content-Type	application/binary
Vary	Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site
Location	https://accounts.google.com/ServiceLogin?service=mail&passive=1209600&osid=1&continue=https://mail.google.com/mail/u/0/&followup=https://mail.google.com/mail/u/0/&emr=1
Strict-Transport-Security	max-age=10886400; includeSubDomains
Permissions-Policy	ch-ua-arch=, ch-ua-bitness=, ch-ua-full-version=, ch-ua-full-version-list=, ch-ua-model=, ch-ua-wow64=, ch-ua-form-factors=, ch-ua-platform=, ch-ua-platform-version=*
Cross-Origin-Resource-Policy	same-site
Date	Sat, 28 Dec 2024 22:18:29 GMT
Server	ESF
Content-Length	0
X-XSS-Protection	0
X-Frame-Options	SAMEORIGIN
X-Content-Type-Options	nosniff
Alt-Svc	clear

https://accounts.google.com/ServiceLogin?service=mail&passive=1209600&osid=1&continue=https://mail.google.com/mail/u/0/&followup=https://mail.google.com/mail/u/0/&emr=1

HTTP/1.1 302 Found

Content-Type	application/binary
Set-Cookie	__Host-GAPS=1:zBE5-6LRmJEJUMxXI3F4Vookib1HzQ:qeqbj-L02hRywnge; Expires=Mon, 28-Dec-2026 22:18:29 GMT; Path=/; Secure; HttpOnly; Priority=HIGH
Cache-Control	no-cache, no-store, max-age=0, must-revalidate
Pragma	no-cache
Expires	Mon, 01 Jan 1990 00:00:00 GMT
Date	Sat, 28 Dec 2024 22:18:29 GMT
Location	https://accounts.google.com/InteractiveLogin?continue=https://mail.google.com/mail/u/0/&emr=1&followup=https://mail.google.com/mail/u/0/&osid=1&passive=1209600&service=mail&ifkv=AeZLP9-8SDcZvxTW-qsHIEP6U5xtC4ZIXBHcSRFsuLCHyW_3EYCHtTQPowlvAWFPy8hD2L85XTCUqQ
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Cross-Origin-Resource-Policy	cross-origin
Cross-Origin-Opener-Policy	unsafe-none
Content-Security-Policy	require-trusted-types-for 'script';report-uri /_/AccountsSigninPassiveLoginHttp/cspreport
Content-Security-Policy	script-src 'report-sample' 'nonce-nkOG78KUiQW7G1jufqzerg' 'unsafe-inline';object-src 'none';base-uri 'self';report-uri /_/AccountsSigninPassiveLoginHttp/cspreport;worker-src 'self'
Content-Security-Policy	script-src 'unsafe-inline' 'unsafe-eval' blob: data: 'self' https://apis.google.com https://ssl.gstatic.com https://www.google.com https://www.googletagmanager.com https://www.gstatic.com https://www.google-analytics.com;report-uri /_/AccountsSigninPassiveLoginHttp/cspreport/allowlist
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Permissions-Policy	ch-ua-arch=, ch-ua-bitness=, ch-ua-full-version=, ch-ua-full-version-list=, ch-ua-model=, ch-ua-wow64=, ch-ua-form-factors=, ch-ua-platform=, ch-ua-platform-version=*
Server	ESF
Content-Length	0
X-XSS-Protection	0
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Alt-Svc	h3=":443"; ma=2592000,h3-29=":443"; ma=2592000

https://accounts.google.com/InteractiveLogin?continue=https://mail.google.com/mail/u/0/&emr=1&followup=https://mail.google.com/mail/u/0/&osid=1&passive=1209600&service=mail&ifkv=AeZLP9-8SDcZvxTW-qsHIEP6U5xtC4ZIXBHcSRFsuLCHyW_3EYCHtTQPowlvAWFPy8hD2L85XTCUqQ

HTTP/1.1 302 Moved Temporarily

Content-Type	text/html; charset=UTF-8
X-Frame-Options	DENY
Cache-Control	no-cache, no-store, max-age=0, must-revalidate
Pragma	no-cache
Expires	Mon, 01 Jan 1990 00:00:00 GMT
Date	Sat, 28 Dec 2024 22:18:29 GMT
Location	https://accounts.google.com/v3/signin/identifier?continue=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&emr=1&followup=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&ifkv=AeZLP98uBp2BnMuI3jTa-95cVBbsulqa5y60y7EMcL2l2NEVDIQ7zF04mTWXCQBGQ2A_9zW2D_ldJA&osid=1&passive=1209600&service=mail&flowName=GlifWebSignIn&flowEntry=ServiceLogin&dsh=S121084217%3A1735424309383380&ddm=1
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Content-Security-Policy	require-trusted-types-for 'script';report-uri /cspreport
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https://accounts.google.com/v3/signin/identifier?continue=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&emr=1&followup=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&ifkv=AeZLP98uBp2BnMuI3jTa-95cVBbsulqa5y60y7EMcL2l2NEVDIQ7zF04mTWXCQBGQ2A_9zW2D_ldJA&osid=1&passive=1209600&service=mail&flowName=GlifWebSignIn&flowEntry=ServiceLogin&dsh=S121084217%3A1735424309383380&ddm=1

HTTP/1.1 200 OK

Content-Type	text/html; charset=utf-8
X-Frame-Options	DENY
Vary	Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site
x-auto-login	realm=com.google&args=service%3Dmail%26continue%3Dhttps://mail.google.com/mail/u/0/
Link	<https://workspace.google.com/gmail/>; rel="canonical"
x-ua-compatible	IE=edge
Cache-Control	no-cache, no-store, max-age=0, must-revalidate
Pragma	no-cache
Expires	Mon, 01 Jan 1990 00:00:00 GMT
Date	Sat, 28 Dec 2024 22:18:29 GMT
Strict-Transport-Security	max-age=31536000; includeSubDomains
Cross-Origin-Opener-Policy-Report-Only	same-origin; report-to="AccountsSignInUi"
Permissions-Policy	ch-ua-arch=, ch-ua-bitness=, ch-ua-full-version=, ch-ua-full-version-list=, ch-ua-model=, ch-ua-wow64=, ch-ua-form-factors=, ch-ua-platform=, ch-ua-platform-version=*
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Content-Security-Policy	require-trusted-types-for 'script';report-uri /v3/signin/_/AccountsSignInUi/cspreport
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URL: https://www.gmail.com/

https://www.gmail.com/

HTTP/1.1 301 Moved Permanently

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X-Content-Type-Options	nosniff
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Content-Length	230
X-XSS-Protection	0
Date	Sat, 28 Dec 2024 22:17:07 GMT
Expires	Sat, 28 Dec 2024 22:47:07 GMT
Cache-Control	public, max-age=1800
Content-Type	text/html; charset=UTF-8
Age	82
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https://mail.google.com/mail/u/0/

HTTP/1.1 302 Found

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https://accounts.google.com/ServiceLogin?service=mail&passive=1209600&osid=1&continue=https://mail.google.com/mail/u/0/&followup=https://mail.google.com/mail/u/0/&emr=1

HTTP/1.1 302 Found

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Pragma	no-cache
Expires	Mon, 01 Jan 1990 00:00:00 GMT
Date	Sat, 28 Dec 2024 22:18:29 GMT
Location	https://accounts.google.com/InteractiveLogin?continue=https://mail.google.com/mail/u/0/&emr=1&followup=https://mail.google.com/mail/u/0/&osid=1&passive=1209600&service=mail&ifkv=AeZLP9_LSfg18wwZ1GZaWukAqkL-PpmzJ_J081VEZcfDGROISZUv_bV3bFJLlPIbYqe-3-43jpNovA
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Content-Security-Policy	script-src 'unsafe-inline' 'unsafe-eval' blob: data: 'self' https://apis.google.com https://ssl.gstatic.com https://www.google.com https://www.googletagmanager.com https://www.gstatic.com https://www.google-analytics.com;report-uri /_/AccountsSigninPassiveLoginHttp/cspreport/allowlist
Accept-CH	Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Model, Sec-CH-UA-WoW64, Sec-CH-UA-Form-Factors, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
Permissions-Policy	ch-ua-arch=, ch-ua-bitness=, ch-ua-full-version=, ch-ua-full-version-list=, ch-ua-model=, ch-ua-wow64=, ch-ua-form-factors=, ch-ua-platform=, ch-ua-platform-version=*
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https://accounts.google.com/InteractiveLogin?continue=https://mail.google.com/mail/u/0/&emr=1&followup=https://mail.google.com/mail/u/0/&osid=1&passive=1209600&service=mail&ifkv=AeZLP9_LSfg18wwZ1GZaWukAqkL-PpmzJ_J081VEZcfDGROISZUv_bV3bFJLlPIbYqe-3-43jpNovA

HTTP/1.1 302 Moved Temporarily

Content-Type	text/html; charset=UTF-8
X-Frame-Options	DENY
Cache-Control	no-cache, no-store, max-age=0, must-revalidate
Pragma	no-cache
Expires	Mon, 01 Jan 1990 00:00:00 GMT
Date	Sat, 28 Dec 2024 22:18:29 GMT
Location	https://accounts.google.com/v3/signin/identifier?continue=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&emr=1&followup=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&ifkv=AeZLP9-VoVqL9-VR6h5D7Dzv4g7QWlyS6XSnNb1s6QBoAvLkBRCaLAjEz9cjEo3zYUpMtJRPx1t-ww&osid=1&passive=1209600&service=mail&flowName=GlifWebSignIn&flowEntry=ServiceLogin&dsh=S-399862853%3A1735424309691139&ddm=1
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https://accounts.google.com/v3/signin/identifier?continue=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&emr=1&followup=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&ifkv=AeZLP9-VoVqL9-VR6h5D7Dzv4g7QWlyS6XSnNb1s6QBoAvLkBRCaLAjEz9cjEo3zYUpMtJRPx1t-ww&osid=1&passive=1209600&service=mail&flowName=GlifWebSignIn&flowEntry=ServiceLogin&dsh=S-399862853%3A1735424309691139&ddm=1

HTTP/1.1 200 OK

Content-Type	text/html; charset=utf-8
X-Frame-Options	DENY
Vary	Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site
x-auto-login	realm=com.google&args=service%3Dmail%26continue%3Dhttps://mail.google.com/mail/u/0/
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x-ua-compatible	IE=edge
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Expires	Mon, 01 Jan 1990 00:00:00 GMT
Date	Sat, 28 Dec 2024 22:18:29 GMT
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WWW TLS

Test passed

Everything seems to be well configured. Well done.

TLS Configuration: gmail.com (2607:f8b0:4004:c09:0:0:0:11)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2 TLS v1.1 TLS v1.0
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_CHACHA20_POLY1305_SHA256 Suite ID: 0x1303 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_CHACHA20_POLY1305_SHA256 256 bits (DHE 768 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (DHE 768 bits) Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (DHE 768 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02b Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc02c Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca8 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits

Analysis

Deprecated protocols supported

TLS 1.0 and TLS 1.1 are deprecated protocols that should be disabled if possible. TLS 1.0, in particular, is a weak older protocol that has many weaknesses. Sites that aim at a wide audience might still need to support TLS 1.0 for the time being, because many older clients don't support newer protocol versions. Sites with a modern user base might be able to disable TLS 1.0 even now. We recommend that you enable logging of encryption parameters, after which you can examine your protocol usage and make a decision with confidence. As of July 2018, PCI DSS doesn't allow use of TLS 1.0. Exceptions apply in some cases.

TLS 1.3 supported

Excellent. This server supports TLS 1.3, which is the latest revision of the TLS protocol and a significant improvement over earlier versions. Developed over a period of several years and extensively analyzed prior to the release, TLS 1.3 removed insecure features, and improved both security and performance.

TLS 1.2 supported

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Excellent. Not only does this server enforce its server preference, but it also has at the top of the list suites that support both forward secrecy and authenticated encryption. This is the best TLS 1.2 can offer.

Server enforces cipher suite preferences

Excellent. This server enforces server cipher suite preference, which means that it is able to select the best suite from the options submitted by clients. Combined with a well-designed list of supported cipher suites, this setting enables negotiation of best security.

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

All TLS connections with this server satisfy Chrome's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

Post-quantum key exchange supported

Excellent. This server supports post-quantum cryptography (PQC) and uses it for key exchange. PQC is still in the process of being standardized and deployed. Protecting the key exchange against future quantum computers is considered to be one of the more pressing tasks.

Algorithm: X25519MLKEM768

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: gmail.com (2607:f8b0:4004:c09:0:0:0:53)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2 TLS v1.1 TLS v1.0
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_CHACHA20_POLY1305_SHA256 Suite ID: 0x1303 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_CHACHA20_POLY1305_SHA256 256 bits (DHE 768 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (DHE 768 bits) Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (DHE 768 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02b Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc02c Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca8 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits

Analysis

Deprecated protocols supported

TLS 1.3 supported

TLS 1.2 supported

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

All TLS connections with this server satisfy Chrome's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

Post-quantum key exchange supported

Algorithm: X25519MLKEM768

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: gmail.com (172.253.122.17)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2 TLS v1.1 TLS v1.0
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_CHACHA20_POLY1305_SHA256 Suite ID: 0x1303 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_CHACHA20_POLY1305_SHA256 256 bits (DHE 768 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (DHE 768 bits) Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (DHE 768 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02b Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc02c Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca8 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits

Analysis

Deprecated protocols supported

TLS 1.3 supported

TLS 1.2 supported

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

All TLS connections with this server satisfy Chrome's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

Post-quantum key exchange supported

Algorithm: X25519MLKEM768

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: www.gmail.com (2607:f8b0:4004:c1b:0:0:0:53)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2 TLS v1.1 TLS v1.0
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_CHACHA20_POLY1305_SHA256 Suite ID: 0x1303 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_CHACHA20_POLY1305_SHA256 256 bits (DHE 768 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (DHE 768 bits) Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (DHE 768 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02b Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc02c Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca8 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits

Analysis

Deprecated protocols supported

TLS 1.3 supported

TLS 1.2 supported

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

All TLS connections with this server satisfy Chrome's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

Post-quantum key exchange supported

Algorithm: X25519MLKEM768

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: gmail.com (2607:f8b0:4004:c09:0:0:0:12)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2 TLS v1.1 TLS v1.0
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_CHACHA20_POLY1305_SHA256 Suite ID: 0x1303 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_CHACHA20_POLY1305_SHA256 256 bits (DHE 768 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (DHE 768 bits) Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (DHE 768 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02b Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc02c Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca8 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits

Analysis

Deprecated protocols supported

TLS 1.3 supported

TLS 1.2 supported

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

All TLS connections with this server satisfy Chrome's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

Post-quantum key exchange supported

Algorithm: X25519MLKEM768

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: www.gmail.com (2607:f8b0:4004:c1b:0:0:0:12)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2 TLS v1.1 TLS v1.0
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_CHACHA20_POLY1305_SHA256 Suite ID: 0x1303 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_CHACHA20_POLY1305_SHA256 256 bits (DHE 768 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (DHE 768 bits) Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (DHE 768 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02b Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc02c Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca8 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits

Analysis

Deprecated protocols supported

TLS 1.3 supported

TLS 1.2 supported

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

All TLS connections with this server satisfy Chrome's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

Post-quantum key exchange supported

Algorithm: X25519MLKEM768

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: www.gmail.com (142.251.163.17)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2 TLS v1.1 TLS v1.0
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_CHACHA20_POLY1305_SHA256 Suite ID: 0x1303 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_CHACHA20_POLY1305_SHA256 256 bits (DHE 768 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (DHE 768 bits) Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (DHE 768 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02b Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc02c Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca8 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits

Analysis

Deprecated protocols supported

TLS 1.3 supported

TLS 1.2 supported

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

All TLS connections with this server satisfy Chrome's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

Post-quantum key exchange supported

Algorithm: X25519MLKEM768

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: www.gmail.com (142.251.163.83)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2 TLS v1.1 TLS v1.0
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_CHACHA20_POLY1305_SHA256 Suite ID: 0x1303 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_CHACHA20_POLY1305_SHA256 256 bits (DHE 768 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (DHE 768 bits) Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (DHE 768 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02b Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc02c Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca8 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits

Analysis

Deprecated protocols supported

TLS 1.3 supported

TLS 1.2 supported

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

All TLS connections with this server satisfy Chrome's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

Post-quantum key exchange supported

Algorithm: X25519MLKEM768

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: gmail.com (172.253.122.83)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2 TLS v1.1 TLS v1.0
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_CHACHA20_POLY1305_SHA256 Suite ID: 0x1303 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_CHACHA20_POLY1305_SHA256 256 bits (DHE 768 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (DHE 768 bits) Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (DHE 768 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02b Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc02c Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca8 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits

Analysis

Deprecated protocols supported

TLS 1.3 supported

TLS 1.2 supported

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

All TLS connections with this server satisfy Chrome's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

Post-quantum key exchange supported

Algorithm: X25519MLKEM768

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: www.gmail.com (2607:f8b0:4004:c1b:0:0:0:13)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2 TLS v1.1 TLS v1.0
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_CHACHA20_POLY1305_SHA256 Suite ID: 0x1303 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_CHACHA20_POLY1305_SHA256 256 bits (DHE 768 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (DHE 768 bits) Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (DHE 768 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02b Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc02c Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca8 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits

Analysis

Deprecated protocols supported

TLS 1.3 supported

TLS 1.2 supported

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

All TLS connections with this server satisfy Chrome's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

Post-quantum key exchange supported

Algorithm: X25519MLKEM768

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: gmail.com (2607:f8b0:4004:c09:0:0:0:13)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2 TLS v1.1 TLS v1.0
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_CHACHA20_POLY1305_SHA256 Suite ID: 0x1303 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_CHACHA20_POLY1305_SHA256 256 bits (DHE 768 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (DHE 768 bits) Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (DHE 768 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02b Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc02c Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca8 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits

Analysis

Deprecated protocols supported

TLS 1.3 supported

TLS 1.2 supported

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

All TLS connections with this server satisfy Chrome's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

Post-quantum key exchange supported

Algorithm: X25519MLKEM768

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: www.gmail.com (2607:f8b0:4004:c1b:0:0:0:11)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2 TLS v1.1 TLS v1.0
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_CHACHA20_POLY1305_SHA256 Suite ID: 0x1303 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_CHACHA20_POLY1305_SHA256 256 bits (DHE 768 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (DHE 768 bits) Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (DHE 768 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02b Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc02c Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca8 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits

Analysis

Deprecated protocols supported

TLS 1.3 supported

TLS 1.2 supported

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

All TLS connections with this server satisfy Chrome's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

Post-quantum key exchange supported

Algorithm: X25519MLKEM768

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: www.gmail.com (142.251.163.19)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2 TLS v1.1 TLS v1.0
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_CHACHA20_POLY1305_SHA256 Suite ID: 0x1303 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_CHACHA20_POLY1305_SHA256 256 bits (DHE 768 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (DHE 768 bits) Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (DHE 768 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02b Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc02c Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca8 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits

Analysis

Deprecated protocols supported

TLS 1.3 supported

TLS 1.2 supported

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

All TLS connections with this server satisfy Chrome's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

Post-quantum key exchange supported

Algorithm: X25519MLKEM768

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: www.gmail.com (142.251.163.18)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2 TLS v1.1 TLS v1.0
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_CHACHA20_POLY1305_SHA256 Suite ID: 0x1303 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_CHACHA20_POLY1305_SHA256 256 bits (DHE 768 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (DHE 768 bits) Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (DHE 768 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02b Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc02c Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca8 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits

Analysis

Deprecated protocols supported

TLS 1.3 supported

TLS 1.2 supported

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

All TLS connections with this server satisfy Chrome's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

Post-quantum key exchange supported

Algorithm: X25519MLKEM768

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: gmail.com (172.253.122.18)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2 TLS v1.1 TLS v1.0
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_CHACHA20_POLY1305_SHA256 Suite ID: 0x1303 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_CHACHA20_POLY1305_SHA256 256 bits (DHE 768 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (DHE 768 bits) Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (DHE 768 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02b Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc02c Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca8 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits

Analysis

Deprecated protocols supported

TLS 1.3 supported

TLS 1.2 supported

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

All TLS connections with this server satisfy Chrome's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

Post-quantum key exchange supported

Algorithm: X25519MLKEM768

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

TLS Configuration: gmail.com (172.253.122.19)

Encryption protocol version determines what features are available for negotiation between client and server.Supported protocols	TLS v1.3 TLS v1.2 TLS v1.1 TLS v1.0
Servers should always enforce their own cipher suite preference, as that is the only approach that guarantees that the best possible suite is selected.Server suite preference
Shows cipher suite configuration for this protocol version.TLS v1.3 Server preference	Suite: TLS_CHACHA20_POLY1305_SHA256 Suite ID: 0x1303 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_CHACHA20_POLY1305_SHA256 256 bits (DHE 768 bits) Suite: TLS_AES_128_GCM_SHA256 Suite ID: 0x1301 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA256 TLS_AES_128_GCM_SHA256 128 bits (DHE 768 bits) Suite: TLS_AES_256_GCM_SHA384 Suite ID: 0x1302 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: X25519MLKEM768 Key exchange strength: DH Forward secrecy: Yes PRF: SHA384 TLS_AES_256_GCM_SHA384 256 bits (DHE 768 bits)
Shows cipher suite configuration for this protocol version.TLS v1.2 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca9 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02b Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc02c Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 Suite ID: 0xcca8 Cipher name: CHACHA20 Cipher strength: 256 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0xc02f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0xc030 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 Suite ID: 0x9c Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA256 TLS_RSA_WITH_AES_128_GCM_SHA256 128 bits Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 Suite ID: 0x9d Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: AEAD Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA384 TLS_RSA_WITH_AES_256_GCM_SHA384 256 bits Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.1 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits
Shows cipher suite configuration for this protocol version.TLS v1.0 Server preference	Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA Suite ID: 0xc009 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Suite ID: 0xc00a Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_ECDSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA Suite ID: 0xc013 Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 128 bits (ECDHE 256 bits) Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Suite ID: 0xc014 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: ECDHE_RSA Key exchange strength: EC ecdh_x25519 (256 bits) Forward secrecy: Yes PRF: SHA TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 256 bits (ECDHE 256 bits) Suite: TLS_RSA_WITH_AES_128_CBC_SHA Suite ID: 0x2f Cipher name: AES Cipher strength: 128 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_128_CBC_SHA 128 bits Suite: TLS_RSA_WITH_AES_256_CBC_SHA Suite ID: 0x35 Cipher name: AES Cipher strength: 256 bits Cipher block size: 128 bits Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_AES_256_CBC_SHA 256 bits Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA Suite ID: 0xa Cipher name: 3DES (WEAK) Cipher strength: 112 bits Cipher block size: 64 bits (WEAK) Cipher mode: CBC Key exchange: RSA Key exchange strength: 2048 bits Forward secrecy: No (WEAK) PRF: SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA 112 bits

Analysis

Deprecated protocols supported

TLS 1.3 supported

TLS 1.2 supported

Strong key exchange detected

Server prefers forward secrecy and authenticated encryption suites

Server enforces cipher suite preferences

All TLS connections with this server satisfy Apple's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

All TLS connections with this server satisfy Chrome's CT requirements

All TLS connections established with this server satisfy Chrome's CT requirements, using certificate, TLS extension, or OCSP response as SCT transport method.

SCT transports: CERT

Post-quantum key exchange supported

Algorithm: X25519MLKEM768

DHE suites not supported

This server doesn't support the Diffie-Hellman (DH) key exchange.

WWW Certificates

Test passed

Everything seems to be well configured. Well done.

Certificate: www.gmail.com

Leaf certificate

www.gmail.com
Issuer: Google Trust Services LLC
Not Before: 02 Dec 2024 08:37:17 UTC
Not After: 24 Feb 2025 08:37:16 UTC (expires in 1 month 26 days)
Key: RSA 2048 bits
Signature: SHA256withRSA
View details

Names	www.gmail.com
Subject DN	CN=www.gmail.com
Subject Key Identifier	8374f06238433c6d5d288746712e36f19c6994fd
Serial	f1753888cb1ef9091013cb3b43ae4fa4
Not Before	02 Dec 2024 08:37:17 UTC
Not After	24 Feb 2025 08:37:16 UTC
Validity period	84 days
Key Usage	digitalSignature, keyEncipherment
Extended Key Usage	serverAuth
Must Staple	No
Issuer
Issuer DN	CN=WR2, O=Google Trust Services, C=US
Certification Authority	Google Trust Services LLC
Validation Type	Domain Validation (DV)
Authority Key Identifier	keyid:de1b1eed7915d43e3724c321bbec34396d42b230
Parent Certificate	http://i.pki.goog/wr2.crt
CRL	http://c.pki.goog/wr2/oBFYYahzgVI.crl
OCSP	http://o.pki.goog/wr2
Certificate Transparency
Signed Certificate Timestamps	02 Dec 2024 09:37:18 UTC \| Google 'Argon2025h1' log \| Qualified 02 Dec 2024 09:37:18 UTC \| DigiCert Yeti2025 Log \| Qualified
Fingerprints
SHA1	7bb42bee7f89be0c472625b0068bda51d7f262c0
SHA256	f8a95a87aa70fd17e0465aa8991a1c90d3844c2485ed4ea3096244bfb456c14f
SPKI SHA256	5eb2d6e1c2d728ddcf243b56a294965c104af863f325436f8964298e761f46a7

Analysis

Strong private key

Good. The private key associated with this certificate is secure.

Strong signature algorithm

Good. This certificate uses a strong signature algorithm.

Certificate matches hostname

Good. The provided certificate matches the expected hostnames.

Certificate dates match

Good. The certificate is valid for use at this point of time.

Certificate has not been revoked

Good. This certificate has not been revoked.

Certificate satisfies Apple's CT compliance requirements

Good. This certificate satisfies Apple's CT requirements at present.

Certificate Trust

Determining whether a certificate is considered valid is a complicated process that depends on the exact configuration of the validating party. For trust to be established, the certificate must form a chain that ends with a trusted root. In this section we evaluate the server's certificate against major root stores.

Platform	Trusted
Apple
Google AOSP
Microsoft
Mozilla

Certificate Chain

For a server certificate to be valid, it must be presented as part of a complete and valid certificate chain. The last certificate in the chain should be the root and is usually not included in the configuration.

Leaf certificate

www.gmail.com | f8a95a8
Not After: 24 Feb 2025 08:37:16 UTC (expires in 1 month 26 days)
Authentication: RSA 2048 bits (SHA256withRSA)
View details

Names	www.gmail.com
Subject DN	CN=www.gmail.com
Subject Key Identifier	8374f06238433c6d5d288746712e36f19c6994fd
Serial	f1753888cb1ef9091013cb3b43ae4fa4
Not Before	02 Dec 2024 08:37:17 UTC
Not After	24 Feb 2025 08:37:16 UTC
Validity period	84 days
Key Usage	digitalSignature, keyEncipherment
Extended Key Usage	serverAuth
Must Staple	No
Issuer
Issuer DN	CN=WR2, O=Google Trust Services, C=US
Certification Authority	Google Trust Services LLC
Validation Type	Domain Validation (DV)
Authority Key Identifier	keyid:de1b1eed7915d43e3724c321bbec34396d42b230
Parent Certificate	http://i.pki.goog/wr2.crt
CRL	http://c.pki.goog/wr2/oBFYYahzgVI.crl
OCSP	http://o.pki.goog/wr2
Certificate Transparency
Signed Certificate Timestamps	02 Dec 2024 09:37:18 UTC \| Google 'Argon2025h1' log \| Qualified 02 Dec 2024 09:37:18 UTC \| DigiCert Yeti2025 Log \| Qualified
Fingerprints
SHA1	7bb42bee7f89be0c472625b0068bda51d7f262c0
SHA256	f8a95a87aa70fd17e0465aa8991a1c90d3844c2485ed4ea3096244bfb456c14f
SPKI SHA256	5eb2d6e1c2d728ddcf243b56a294965c104af863f325436f8964298e761f46a7

Intermediate certificate

WR2 | e6fe22b
Not After: 20 Feb 2029 14:00:00 UTC (expires in 4 years 1 month)
Authentication: RSA 2048 bits (SHA256withRSA)
View details

Subject DN	CN=WR2, O=Google Trust Services, C=US
Subject Key Identifier	de1b1eed7915d43e3724c321bbec34396d42b230
Serial	7ff005a07c4cded100ad9d66a5107b98
Not Before	13 Dec 2023 09:00:00 UTC
Not After	20 Feb 2029 14:00:00 UTC
Validity period	1897 days
Key Usage	digitalSignature, keyCertSign, cRLSign
Extended Key Usage	serverAuth, clientAuth
Issuer
Issuer DN	CN=GTS Root R1, O=Google Trust Services LLC, C=US
Certification Authority	Google Trust Services LLC
Validation Type	Not Applicable
Authority Key Identifier	keyid:e4af2b26711a2b4827852f52662ceff08913713e
Parent Certificate	http://i.pki.goog/r1.crt
CRL	http://c.pki.goog/r/r1.crl
CA certificate	Yes (pathlen 0)
Fingerprints
SHA1	66e4161260b100fee0de287a9a5293b4c2224ae6
SHA256	e6fe22bf45e4f0d3b85c59e02c0f495418e1eb8d3210f788d48cd5e1cb547cd4
SPKI SHA256	60fb4769fb4bc3aff4be773606734a185e78c62080dbc58571c723900e32a423

Intermediate certificate

GTS Root R1 | 3ee0278
Not After: 28 Jan 2028 00:00:42 UTC (expires in 3 years 30 days)
Authentication: RSA 4096 bits (SHA256withRSA)
View details

Subject DN	CN=GTS Root R1, O=Google Trust Services LLC, C=US
Subject Key Identifier	e4af2b26711a2b4827852f52662ceff08913713e
Serial	77bd0d6cdb36f91aea210fc4f058d30d
Not Before	19 Jun 2020 00:00:42 UTC
Not After	28 Jan 2028 00:00:42 UTC
Key Usage	digitalSignature, keyCertSign, cRLSign
Issuer
Issuer DN	CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Certification Authority	Google Trust Services LLC
Validation Type	Not Applicable
Authority Key Identifier	keyid:607b661a450d97ca89502f7d04cd34a8fffcfd4b
Parent Certificate	http://pki.goog/gsr1/gsr1.crt
CRL	http://crl.pki.goog/gsr1/gsr1.crl
OCSP	http://ocsp.pki.goog/gsr1
CA certificate	Yes (pathlen unlimited)
Fingerprints
SHA1	08745487e891c19e3078c1f2a07e452950ef36f6
SHA256	3ee0278df71fa3c125c4cd487f01d774694e6fc57e0cd94c24efd769133918e5
SPKI SHA256	871a9194f4eed5b312ff40c84c1d524aed2f778bbff25f138cf81f680a7adc67

Root certificate

GlobalSign Root CA | ebd4104
Not After: 28 Jan 2028 12:00:00 UTC (expires in 3 years 30 days)
Authentication: RSA 2048 bits (SHA1withRSA)
View details

Subject DN	CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Subject Key Identifier	607b661a450d97ca89502f7d04cd34a8fffcfd4b
Serial	40000000001154b5ac394
Not Before	01 Sep 1998 12:00:00 UTC
Not After	28 Jan 2028 12:00:00 UTC
Key Usage	keyCertSign, cRLSign
Issuer
Issuer DN	CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Certification Authority	Google Trust Services LLC
Validation Type	Self-signed
CA certificate	Yes (pathlen unlimited)
Fingerprints
SHA1	b1bc968bd4f49d622aa89a81f2150152a41d829c
SHA256	ebd41040e4bb3ec742c9e381d31ef2a41a48b6685c96e7cef3c1df6cd4331c99
SPKI SHA256	2bcee858158cf5465fc9d76f0dfa312fef25a4dca8501da9b46b67d1fbfa1b64

Analysis

Certificate chain is correct

Good. This chain contains all the right certificates and in the right order.

Certificate: gmail.com

Leaf certificate

gmail.com
Issuer: Google Trust Services LLC
Not Before: 02 Dec 2024 08:36:54 UTC
Not After: 24 Feb 2025 08:36:53 UTC (expires in 1 month 26 days)
Key: RSA 2048 bits
Signature: SHA256withRSA
View details

Names	gmail.com *.gmail.com
Subject DN	CN=gmail.com
Subject Key Identifier	92dd0af920ea43351bf55496260f90f2c3284695
Serial	4393be98765da8a30970041764696ce4
Not Before	02 Dec 2024 08:36:54 UTC
Not After	24 Feb 2025 08:36:53 UTC
Validity period	84 days
Key Usage	digitalSignature, keyEncipherment
Extended Key Usage	serverAuth
Must Staple	No
Issuer
Issuer DN	CN=WR2, O=Google Trust Services, C=US
Certification Authority	Google Trust Services LLC
Validation Type	Domain Validation (DV)
Authority Key Identifier	keyid:de1b1eed7915d43e3724c321bbec34396d42b230
Parent Certificate	http://i.pki.goog/wr2.crt
CRL	http://c.pki.goog/wr2/GSyT1N4PBrg.crl
OCSP	http://o.pki.goog/wr2
Certificate Transparency
Signed Certificate Timestamps	02 Dec 2024 09:36:56 UTC \| Google 'Xenon2025h1' log \| Qualified 02 Dec 2024 09:36:56 UTC \| Sectigo 'Mammoth2025h1' \| Qualified
Fingerprints
SHA1	29f3ebd5dc971e247cbfadf35858a68701edfaad
SHA256	f64c0c1c0f932b8d701d0d7a37a0d7de27610af54c2945a1ede17c80754ff70f
SPKI SHA256	2c5e0d751b3d0e2d5c959639787d15faa8c84d46015942f0c635f505c9b4aab1

Analysis

Strong private key

Good. The private key associated with this certificate is secure.

Strong signature algorithm

Good. This certificate uses a strong signature algorithm.

Certificate matches hostname

Good. The provided certificate matches the expected hostnames.

Certificate dates match

Good. The certificate is valid for use at this point of time.

Certificate has not been revoked

Good. This certificate has not been revoked.

Certificate satisfies Apple's CT compliance requirements

Good. This certificate satisfies Apple's CT requirements at present.

Certificate Trust

Platform	Trusted
Apple
Google AOSP
Microsoft
Mozilla

Certificate Chain

Leaf certificate

gmail.com | f64c0c1
Not After: 24 Feb 2025 08:36:53 UTC (expires in 1 month 26 days)
Authentication: RSA 2048 bits (SHA256withRSA)
View details

Names	gmail.com *.gmail.com
Subject DN	CN=gmail.com
Subject Key Identifier	92dd0af920ea43351bf55496260f90f2c3284695
Serial	4393be98765da8a30970041764696ce4
Not Before	02 Dec 2024 08:36:54 UTC
Not After	24 Feb 2025 08:36:53 UTC
Validity period	84 days
Key Usage	digitalSignature, keyEncipherment
Extended Key Usage	serverAuth
Must Staple	No
Issuer
Issuer DN	CN=WR2, O=Google Trust Services, C=US
Certification Authority	Google Trust Services LLC
Validation Type	Domain Validation (DV)
Authority Key Identifier	keyid:de1b1eed7915d43e3724c321bbec34396d42b230
Parent Certificate	http://i.pki.goog/wr2.crt
CRL	http://c.pki.goog/wr2/GSyT1N4PBrg.crl
OCSP	http://o.pki.goog/wr2
Certificate Transparency
Signed Certificate Timestamps	02 Dec 2024 09:36:56 UTC \| Google 'Xenon2025h1' log \| Qualified 02 Dec 2024 09:36:56 UTC \| Sectigo 'Mammoth2025h1' \| Qualified
Fingerprints
SHA1	29f3ebd5dc971e247cbfadf35858a68701edfaad
SHA256	f64c0c1c0f932b8d701d0d7a37a0d7de27610af54c2945a1ede17c80754ff70f
SPKI SHA256	2c5e0d751b3d0e2d5c959639787d15faa8c84d46015942f0c635f505c9b4aab1

Intermediate certificate

WR2 | e6fe22b
Not After: 20 Feb 2029 14:00:00 UTC (expires in 4 years 1 month)
Authentication: RSA 2048 bits (SHA256withRSA)
View details

Subject DN	CN=WR2, O=Google Trust Services, C=US
Subject Key Identifier	de1b1eed7915d43e3724c321bbec34396d42b230
Serial	7ff005a07c4cded100ad9d66a5107b98
Not Before	13 Dec 2023 09:00:00 UTC
Not After	20 Feb 2029 14:00:00 UTC
Validity period	1897 days
Key Usage	digitalSignature, keyCertSign, cRLSign
Extended Key Usage	serverAuth, clientAuth
Issuer
Issuer DN	CN=GTS Root R1, O=Google Trust Services LLC, C=US
Certification Authority	Google Trust Services LLC
Validation Type	Not Applicable
Authority Key Identifier	keyid:e4af2b26711a2b4827852f52662ceff08913713e
Parent Certificate	http://i.pki.goog/r1.crt
CRL	http://c.pki.goog/r/r1.crl
CA certificate	Yes (pathlen 0)
Fingerprints
SHA1	66e4161260b100fee0de287a9a5293b4c2224ae6
SHA256	e6fe22bf45e4f0d3b85c59e02c0f495418e1eb8d3210f788d48cd5e1cb547cd4
SPKI SHA256	60fb4769fb4bc3aff4be773606734a185e78c62080dbc58571c723900e32a423

Intermediate certificate

GTS Root R1 | 3ee0278
Not After: 28 Jan 2028 00:00:42 UTC (expires in 3 years 30 days)
Authentication: RSA 4096 bits (SHA256withRSA)
View details

Subject DN	CN=GTS Root R1, O=Google Trust Services LLC, C=US
Subject Key Identifier	e4af2b26711a2b4827852f52662ceff08913713e
Serial	77bd0d6cdb36f91aea210fc4f058d30d
Not Before	19 Jun 2020 00:00:42 UTC
Not After	28 Jan 2028 00:00:42 UTC
Key Usage	digitalSignature, keyCertSign, cRLSign
Issuer
Issuer DN	CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Certification Authority	Google Trust Services LLC
Validation Type	Not Applicable
Authority Key Identifier	keyid:607b661a450d97ca89502f7d04cd34a8fffcfd4b
Parent Certificate	http://pki.goog/gsr1/gsr1.crt
CRL	http://crl.pki.goog/gsr1/gsr1.crl
OCSP	http://ocsp.pki.goog/gsr1
CA certificate	Yes (pathlen unlimited)
Fingerprints
SHA1	08745487e891c19e3078c1f2a07e452950ef36f6
SHA256	3ee0278df71fa3c125c4cd487f01d774694e6fc57e0cd94c24efd769133918e5
SPKI SHA256	871a9194f4eed5b312ff40c84c1d524aed2f778bbff25f138cf81f680a7adc67

Root certificate

GlobalSign Root CA | ebd4104
Not After: 28 Jan 2028 12:00:00 UTC (expires in 3 years 30 days)
Authentication: RSA 2048 bits (SHA1withRSA)
View details

Subject DN	CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Subject Key Identifier	607b661a450d97ca89502f7d04cd34a8fffcfd4b
Serial	40000000001154b5ac394
Not Before	01 Sep 1998 12:00:00 UTC
Not After	28 Jan 2028 12:00:00 UTC
Key Usage	keyCertSign, cRLSign
Issuer
Issuer DN	CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Certification Authority	Google Trust Services LLC
Validation Type	Self-signed
CA certificate	Yes (pathlen unlimited)
Fingerprints
SHA1	b1bc968bd4f49d622aa89a81f2150152a41d829c
SHA256	ebd41040e4bb3ec742c9e381d31ef2a41a48b6685c96e7cef3c1df6cd4331c99
SPKI SHA256	2bcee858158cf5465fc9d76f0dfa312fef25a4dca8501da9b46b67d1fbfa1b64

Analysis

Certificate chain is correct

Good. This chain contains all the right certificates and in the right order.

Certificate: www.gmail.com

Leaf certificate

www.gmail.com
Issuer: Google Trust Services LLC
Not Before: 02 Dec 2024 08:37:17 UTC
Not After: 24 Feb 2025 08:37:16 UTC (expires in 1 month 26 days)
Key: EC 256 bits
Signature: SHA256withRSA
View details

Names	www.gmail.com
Subject DN	CN=www.gmail.com
Subject Key Identifier	ae4735edfa17f88061ac64858fe57e63fb7a2507
Serial	96cb35e7d9b0d8670a8b6a91712c9c22
Not Before	02 Dec 2024 08:37:17 UTC
Not After	24 Feb 2025 08:37:16 UTC
Validity period	84 days
Key Usage	digitalSignature
Extended Key Usage	serverAuth
Must Staple	No
Issuer
Issuer DN	CN=WR2, O=Google Trust Services, C=US
Certification Authority	Google Trust Services LLC
Validation Type	Domain Validation (DV)
Authority Key Identifier	keyid:de1b1eed7915d43e3724c321bbec34396d42b230
Parent Certificate	http://i.pki.goog/wr2.crt
CRL	http://c.pki.goog/wr2/GSyT1N4PBrg.crl
OCSP	http://o.pki.goog/wr2
Certificate Transparency
Signed Certificate Timestamps	02 Dec 2024 09:37:18 UTC \| Google 'Xenon2025h1' log \| Qualified 02 Dec 2024 09:37:18 UTC \| DigiCert Yeti2025 Log \| Qualified
Fingerprints
SHA1	98def586ceda9f6ef65863be5f343d86e2e8eccd
SHA256	59dd15852d91ebdff37635a2c8c18e1b48a1d1e031ac2360910b5205e9b7c578
SPKI SHA256	e76959fde24784726e5f64ddef01a9a1fe6d9cbfdb03b20dd09a7d824fdd32e1

Analysis

Strong private key

Good. The private key associated with this certificate is secure.

Strong signature algorithm

Good. This certificate uses a strong signature algorithm.

Certificate matches hostname

Good. The provided certificate matches the expected hostnames.

Certificate dates match

Good. The certificate is valid for use at this point of time.

Certificate has not been revoked

Good. This certificate has not been revoked.

Certificate satisfies Apple's CT compliance requirements

Good. This certificate satisfies Apple's CT requirements at present.

Certificate Trust

Platform	Trusted
Apple
Google AOSP
Microsoft
Mozilla

Certificate Chain

Leaf certificate

www.gmail.com | 59dd158
Not After: 24 Feb 2025 08:37:16 UTC (expires in 1 month 26 days)
Authentication: EC 256 bits (SHA256withRSA)
View details

Names	www.gmail.com
Subject DN	CN=www.gmail.com
Subject Key Identifier	ae4735edfa17f88061ac64858fe57e63fb7a2507
Serial	96cb35e7d9b0d8670a8b6a91712c9c22
Not Before	02 Dec 2024 08:37:17 UTC
Not After	24 Feb 2025 08:37:16 UTC
Validity period	84 days
Key Usage	digitalSignature
Extended Key Usage	serverAuth
Must Staple	No
Issuer
Issuer DN	CN=WR2, O=Google Trust Services, C=US
Certification Authority	Google Trust Services LLC
Validation Type	Domain Validation (DV)
Authority Key Identifier	keyid:de1b1eed7915d43e3724c321bbec34396d42b230
Parent Certificate	http://i.pki.goog/wr2.crt
CRL	http://c.pki.goog/wr2/GSyT1N4PBrg.crl
OCSP	http://o.pki.goog/wr2
Certificate Transparency
Signed Certificate Timestamps	02 Dec 2024 09:37:18 UTC \| Google 'Xenon2025h1' log \| Qualified 02 Dec 2024 09:37:18 UTC \| DigiCert Yeti2025 Log \| Qualified
Fingerprints
SHA1	98def586ceda9f6ef65863be5f343d86e2e8eccd
SHA256	59dd15852d91ebdff37635a2c8c18e1b48a1d1e031ac2360910b5205e9b7c578
SPKI SHA256	e76959fde24784726e5f64ddef01a9a1fe6d9cbfdb03b20dd09a7d824fdd32e1

Intermediate certificate

WR2 | e6fe22b
Not After: 20 Feb 2029 14:00:00 UTC (expires in 4 years 1 month)
Authentication: RSA 2048 bits (SHA256withRSA)
View details

Subject DN	CN=WR2, O=Google Trust Services, C=US
Subject Key Identifier	de1b1eed7915d43e3724c321bbec34396d42b230
Serial	7ff005a07c4cded100ad9d66a5107b98
Not Before	13 Dec 2023 09:00:00 UTC
Not After	20 Feb 2029 14:00:00 UTC
Validity period	1897 days
Key Usage	digitalSignature, keyCertSign, cRLSign
Extended Key Usage	serverAuth, clientAuth
Issuer
Issuer DN	CN=GTS Root R1, O=Google Trust Services LLC, C=US
Certification Authority	Google Trust Services LLC
Validation Type	Not Applicable
Authority Key Identifier	keyid:e4af2b26711a2b4827852f52662ceff08913713e
Parent Certificate	http://i.pki.goog/r1.crt
CRL	http://c.pki.goog/r/r1.crl
CA certificate	Yes (pathlen 0)
Fingerprints
SHA1	66e4161260b100fee0de287a9a5293b4c2224ae6
SHA256	e6fe22bf45e4f0d3b85c59e02c0f495418e1eb8d3210f788d48cd5e1cb547cd4
SPKI SHA256	60fb4769fb4bc3aff4be773606734a185e78c62080dbc58571c723900e32a423

Intermediate certificate

GTS Root R1 | 3ee0278
Not After: 28 Jan 2028 00:00:42 UTC (expires in 3 years 30 days)
Authentication: RSA 4096 bits (SHA256withRSA)
View details

Subject DN	CN=GTS Root R1, O=Google Trust Services LLC, C=US
Subject Key Identifier	e4af2b26711a2b4827852f52662ceff08913713e
Serial	77bd0d6cdb36f91aea210fc4f058d30d
Not Before	19 Jun 2020 00:00:42 UTC
Not After	28 Jan 2028 00:00:42 UTC
Key Usage	digitalSignature, keyCertSign, cRLSign
Issuer
Issuer DN	CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Certification Authority	Google Trust Services LLC
Validation Type	Not Applicable
Authority Key Identifier	keyid:607b661a450d97ca89502f7d04cd34a8fffcfd4b
Parent Certificate	http://pki.goog/gsr1/gsr1.crt
CRL	http://crl.pki.goog/gsr1/gsr1.crl
OCSP	http://ocsp.pki.goog/gsr1
CA certificate	Yes (pathlen unlimited)
Fingerprints
SHA1	08745487e891c19e3078c1f2a07e452950ef36f6
SHA256	3ee0278df71fa3c125c4cd487f01d774694e6fc57e0cd94c24efd769133918e5
SPKI SHA256	871a9194f4eed5b312ff40c84c1d524aed2f778bbff25f138cf81f680a7adc67

Root certificate

GlobalSign Root CA | ebd4104
Not After: 28 Jan 2028 12:00:00 UTC (expires in 3 years 30 days)
Authentication: RSA 2048 bits (SHA1withRSA)
View details

Subject DN	CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Subject Key Identifier	607b661a450d97ca89502f7d04cd34a8fffcfd4b
Serial	40000000001154b5ac394
Not Before	01 Sep 1998 12:00:00 UTC
Not After	28 Jan 2028 12:00:00 UTC
Key Usage	keyCertSign, cRLSign
Issuer
Issuer DN	CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Certification Authority	Google Trust Services LLC
Validation Type	Self-signed
CA certificate	Yes (pathlen unlimited)
Fingerprints
SHA1	b1bc968bd4f49d622aa89a81f2150152a41d829c
SHA256	ebd41040e4bb3ec742c9e381d31ef2a41a48b6685c96e7cef3c1df6cd4331c99
SPKI SHA256	2bcee858158cf5465fc9d76f0dfa312fef25a4dca8501da9b46b67d1fbfa1b64

Analysis

Certificate chain is correct

Good. This chain contains all the right certificates and in the right order.

Certificate: gmail.com

Leaf certificate

Names	gmail.com *.gmail.com
Subject DN	CN=gmail.com
Subject Key Identifier	0305f0a75347de51b2be35f47082d1a523a872df
Serial	1dbadc371c91daf7122ebc875d3d1a77
Not Before	02 Dec 2024 08:36:54 UTC
Not After	24 Feb 2025 08:36:53 UTC
Validity period	84 days
Key Usage	digitalSignature
Extended Key Usage	serverAuth
Must Staple	No
Issuer
Issuer DN	CN=WR2, O=Google Trust Services, C=US
Certification Authority	Google Trust Services LLC
Validation Type	Domain Validation (DV)
Authority Key Identifier	keyid:de1b1eed7915d43e3724c321bbec34396d42b230
Parent Certificate	http://i.pki.goog/wr2.crt
CRL	http://c.pki.goog/wr2/9UVbN0w5E6Y.crl
OCSP	http://o.pki.goog/wr2
Certificate Transparency
Signed Certificate Timestamps	02 Dec 2024 09:36:55 UTC \| Google 'Argon2025h1' log \| Qualified 02 Dec 2024 09:36:56 UTC \| Sectigo 'Mammoth2025h1' \| Qualified
Fingerprints
SHA1	c1e1a412986eff3e9019ba75594c1939118980aa
SHA256	b783dbc0fe7bf1d9568d6eea080f8152790f19814edd44ade6517f9c95a02188
SPKI SHA256	735e4d5b185c8d798652d5196ff3c80c35ef29dc39a6d262a6093afa1da7eccb

Analysis

Strong private key

Good. The private key associated with this certificate is secure.

Strong signature algorithm

Good. This certificate uses a strong signature algorithm.

Certificate matches hostname

Good. The provided certificate matches the expected hostnames.

Certificate dates match

Good. The certificate is valid for use at this point of time.

Certificate has not been revoked

Good. This certificate has not been revoked.

Certificate satisfies Apple's CT compliance requirements

Good. This certificate satisfies Apple's CT requirements at present.

Certificate Trust

Platform	Trusted
Apple
Google AOSP
Microsoft
Mozilla

Certificate Chain

Leaf certificate

gmail.com | b783dbc
Not After: 24 Feb 2025 08:36:53 UTC (expires in 1 month 26 days)
Authentication: EC 256 bits (SHA256withRSA)
View details

Names	gmail.com *.gmail.com
Subject DN	CN=gmail.com
Subject Key Identifier	0305f0a75347de51b2be35f47082d1a523a872df
Serial	1dbadc371c91daf7122ebc875d3d1a77
Not Before	02 Dec 2024 08:36:54 UTC
Not After	24 Feb 2025 08:36:53 UTC
Validity period	84 days
Key Usage	digitalSignature
Extended Key Usage	serverAuth
Must Staple	No
Issuer
Issuer DN	CN=WR2, O=Google Trust Services, C=US
Certification Authority	Google Trust Services LLC
Validation Type	Domain Validation (DV)
Authority Key Identifier	keyid:de1b1eed7915d43e3724c321bbec34396d42b230
Parent Certificate	http://i.pki.goog/wr2.crt
CRL	http://c.pki.goog/wr2/9UVbN0w5E6Y.crl
OCSP	http://o.pki.goog/wr2
Certificate Transparency
Signed Certificate Timestamps	02 Dec 2024 09:36:55 UTC \| Google 'Argon2025h1' log \| Qualified 02 Dec 2024 09:36:56 UTC \| Sectigo 'Mammoth2025h1' \| Qualified
Fingerprints
SHA1	c1e1a412986eff3e9019ba75594c1939118980aa
SHA256	b783dbc0fe7bf1d9568d6eea080f8152790f19814edd44ade6517f9c95a02188
SPKI SHA256	735e4d5b185c8d798652d5196ff3c80c35ef29dc39a6d262a6093afa1da7eccb

Intermediate certificate

WR2 | e6fe22b
Not After: 20 Feb 2029 14:00:00 UTC (expires in 4 years 1 month)
Authentication: RSA 2048 bits (SHA256withRSA)
View details

Subject DN	CN=WR2, O=Google Trust Services, C=US
Subject Key Identifier	de1b1eed7915d43e3724c321bbec34396d42b230
Serial	7ff005a07c4cded100ad9d66a5107b98
Not Before	13 Dec 2023 09:00:00 UTC
Not After	20 Feb 2029 14:00:00 UTC
Validity period	1897 days
Key Usage	digitalSignature, keyCertSign, cRLSign
Extended Key Usage	serverAuth, clientAuth
Issuer
Issuer DN	CN=GTS Root R1, O=Google Trust Services LLC, C=US
Certification Authority	Google Trust Services LLC
Validation Type	Not Applicable
Authority Key Identifier	keyid:e4af2b26711a2b4827852f52662ceff08913713e
Parent Certificate	http://i.pki.goog/r1.crt
CRL	http://c.pki.goog/r/r1.crl
CA certificate	Yes (pathlen 0)
Fingerprints
SHA1	66e4161260b100fee0de287a9a5293b4c2224ae6
SHA256	e6fe22bf45e4f0d3b85c59e02c0f495418e1eb8d3210f788d48cd5e1cb547cd4
SPKI SHA256	60fb4769fb4bc3aff4be773606734a185e78c62080dbc58571c723900e32a423

Intermediate certificate

GTS Root R1 | 3ee0278
Not After: 28 Jan 2028 00:00:42 UTC (expires in 3 years 30 days)
Authentication: RSA 4096 bits (SHA256withRSA)
View details

Subject DN	CN=GTS Root R1, O=Google Trust Services LLC, C=US
Subject Key Identifier	e4af2b26711a2b4827852f52662ceff08913713e
Serial	77bd0d6cdb36f91aea210fc4f058d30d
Not Before	19 Jun 2020 00:00:42 UTC
Not After	28 Jan 2028 00:00:42 UTC
Key Usage	digitalSignature, keyCertSign, cRLSign
Issuer
Issuer DN	CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Certification Authority	Google Trust Services LLC
Validation Type	Not Applicable
Authority Key Identifier	keyid:607b661a450d97ca89502f7d04cd34a8fffcfd4b
Parent Certificate	http://pki.goog/gsr1/gsr1.crt
CRL	http://crl.pki.goog/gsr1/gsr1.crl
OCSP	http://ocsp.pki.goog/gsr1
CA certificate	Yes (pathlen unlimited)
Fingerprints
SHA1	08745487e891c19e3078c1f2a07e452950ef36f6
SHA256	3ee0278df71fa3c125c4cd487f01d774694e6fc57e0cd94c24efd769133918e5
SPKI SHA256	871a9194f4eed5b312ff40c84c1d524aed2f778bbff25f138cf81f680a7adc67

Root certificate

GlobalSign Root CA | ebd4104
Not After: 28 Jan 2028 12:00:00 UTC (expires in 3 years 30 days)
Authentication: RSA 2048 bits (SHA1withRSA)
View details

Subject DN	CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Subject Key Identifier	607b661a450d97ca89502f7d04cd34a8fffcfd4b
Serial	40000000001154b5ac394
Not Before	01 Sep 1998 12:00:00 UTC
Not After	28 Jan 2028 12:00:00 UTC
Key Usage	keyCertSign, cRLSign
Issuer
Issuer DN	CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Certification Authority	Google Trust Services LLC
Validation Type	Self-signed
CA certificate	Yes (pathlen unlimited)
Fingerprints
SHA1	b1bc968bd4f49d622aa89a81f2150152a41d829c
SHA256	ebd41040e4bb3ec742c9e381d31ef2a41a48b6685c96e7cef3c1df6cd4331c99
SPKI SHA256	2bcee858158cf5465fc9d76f0dfa312fef25a4dca8501da9b46b67d1fbfa1b64

Analysis

Certificate chain is correct

Good. This chain contains all the right certificates and in the right order.

DANE (443)

Feature not applicable, not implemented, or disabled

Your server doesn't support this feature.

Cookies

Cookies are small chunks of text that are sent between your browser and a website. They are often essential to the operation of the site and sometimes contain sensitive information. Session cookies sent from secure sites must be explicitly marked as secure to prevent being obtained by active network attackers.

Test passed

Everything seems to be well configured. Well done.

HTML Content

On virtually all web sites, HTML markup, images, style sheets, JavaScript, and other page resources arrive not only over multiple connections but possibly from multiple servers and sites spread across the entire Internet. For a page to be properly encrypted, it’s necessary that all the content is retrieved over HTTPS. In practice, that’s very often not the case, leading to mixed content security problems.

Test passed

Everything seems to be well configured. Well done.

Encryption of Embedded Resources

In this section we look at the transport security of all embedded resources. Mixed active content occurs when there are unprotected scripts or styles embedded in a page. This is typically not allowed by modern browsers. Mixed passive content (images, videos and such) are typically allowed, but shouldn't be present.

0 script(s)
0 out of 0 are secure

0 CSS file(s)
0 out of 0 are secure

0 media file(s)
0 out of 0 are secure

Encryption of Outbound Links

Ideally, an encrypted page should only have links that lead to other encrypted pages. If plaintext links are used, passive network attackers can see where people go after they visit your web site. It's also possible that some sensitive information is leaked in the Referer header.

1 link(s)
1 out of 1 are encrypted View all

Status	Link
Encrypted	https://mail.google.com/mail/u/0/

HTTP Strict Transport Security

HTTP Strict Transport Security (HSTS) vastly improves security of the network encryption layer. With HSTS enabled, browsers no longer allow clicking through certificate warnings errors, which are typically trivial to exploit. Additionally, they will no longer submit insecure (plaintext) requests to the site in question, even if asked.

Feature not applicable, not implemented, or disabled

Your server doesn't support this feature.

HSTS Policy

URL from which this policy was obtained.Location

https://www.gmail.com/

Analysis

Policy preloaded

Excellent. This host is covered by a preloaded HSTS policy.

Preloaded host: www.gmail.com; includeSubDomains=false

No parent protection

This host could benefit from further protection if the apex hostname would be configured with a HSTS policy that uses 'includeSubDomains'. Enabling HSTS on an entire domain name is the only approach that provides robust security.

Analysis

Deploy HSTS on this host

This host doesn't use HSTS, which means that its users can be easily attacked via MITM attacks. Consider deploying HSTS to disable certificate warnings and increase content and cookie security.

HTTP Public Key Pinning

HTTP Public Key Pinning (HPKP) enables site operators to restrict which certificates are considered valid for their domain names. With a valid HPKP configuration, sites can defeat man in the middle (MITM) attacks using fraudulent or misissued certificates. HPKP is an advanced feature, suitable for use by only high-profile web sites.

Feature not applicable, not implemented, or disabled

Your server doesn't support this feature.

Content Security Policy

Content Security Policy (CSP) is a security mechanism that allows web sites control how browsers process their pages. In essence, sites can restrict what types of resources are loaded and from where. CSP policies can be used to defend against cross-site scripting, prevent mixed content issues, as well as report violations for investigation.

Feature not applicable, not implemented, or disabled

Your server doesn't support this feature.

Subresource Integrity

Subresource Integrity (SRI) is a new standard that enables browsers to verify the integrity of embedded page resources (e.g., scripts and stylesheets) when they are loaded from third-party web sites. With SRI deployed, remote resources can be used safely, without fear of them being modified by malicious parties.

Test passed

Everything seems to be well configured. Well done.

No external scripts
SRI not needed

No external stylesheets
SRI not needed

Analysis

No remote resources

The homepage of this site doesn't contain any remote resources so SRI is not needed.

Expect CT

Expect-CT is a deprecated response HTTP header designed to enable web sites to monitor problems related to their Certificate Transparency (CT) compliance. Should any CT issues arise, browsers that supported this header will submit reports to the specified reporting endpoint. Chrome was the browser that introduced support for this response header, but later deprecated it and removed it in version 107.

Feature not applicable, not implemented, or disabled

Your server doesn't support this feature.

Analysis

Deploy Expect-CT to enable reporting

An Expect-CT policy enables web sites to monitor for any problems related to their Expect-CT compliance, detecting potentially serious issues quickly. When issues arise, compliant browsers will submit reports to the specified reporting endpoints. Before CT became required for all public certificates the Expect-CT was also used to require CT, but that use case no longer applies.

Frame Options

The X-Frame-Options header controls page framing, which occurs when a page is incorporated into some other page, possibly on a different site. If framing is allowed, attackers can employ clever tricks to make victims perform arbitrary actions on your site; they do this by showing their web site while forwarding the victim's clicks to yours.

Feature not applicable, not implemented, or disabled

Your server doesn't support this feature.

XSS Protection

Some browsers ship with so-called XSS Auditors, built-in defenses against XSS. Although these defenses work against simple reflective XSS attacks, they can be abused by skillful attackers to add weaknesses to otherwise secure web sites. These dangers are present in both filtering and blocking modes. At this time, the Safari browser ships with its XSS defenses enabled by default. For this reason, the best approach is to explicitly disable this functionality.

Test passed

Everything seems to be well configured. Well done.

Analysis

Header information

Name: X-XSS-Protection

Value: 0

Browser XSS protection disabled

Great. XSS protection is explicitly disabled, making this web site safe even with browsers that have this functionality enabled by default.

Content Type Options

Some browsers use a technique called content sniffing to override response MIME types provided by HTTP servers and interpret responses as something else (usually HTML). This behavior, which could potentially lead to security issues, should be disabled by attaching an X-Content-Type-Options header to all responses.

Test passed

Everything seems to be well configured. Well done.

Analysis

Header information

Name: X-Content-Type-Options

Value: nosniff

Valid configuration

Good. Your configuration is valid. This means that browsers won't try to guess file MIME type on this web site.

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