SSL Report: github.com (140.82.114.3)
Assessed on:  Mon, 05 Feb 2024 01:59:40 UTC | HIDDEN | Clear cache

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Summary
Overall Rating
A+
0
20
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100
Certificate
 
Protocol Support
 
Key Exchange
 
Cipher Strength
 

Visit our documentation page for more information, configuration guides, and books. Known issues are documented here.
This server supports TLS 1.3.
HTTP Strict Transport Security (HSTS) with long duration deployed on this server.  MORE INFO »
DNS Certification Authority Authorization (CAA) Policy found for this domain.  MORE INFO »
Certificate #1: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject github.com
Fingerprint SHA256: 477022360c3af6ba9838cfb2d68f79768c95902946c0117bdd0220b167e7b625
Pin SHA256: jSd+RbSAB3215SSioJKeyfdEFELVT/xz+Fwod2ypqtE=
Common names github.com
Alternative names github.com www.github.com
Serial Number 036d5f0006fefee0b122f4e25eeca25c
Valid from Fri, 21 Apr 2023 00:00:00 UTC
Valid until Tue, 23 Apr 2024 23:59:59 UTC (expires in 2 months and 18 days)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer DigiCert Global G2 TLS RSA SHA256 2020 CA1
AIA: http://cacerts.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL, OCSP
CRL: http://crl3.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl
OCSP: http://ocsp.digicert.com
Revocation status Good (not revoked)
DNS CAA Yes
policy host: github.com
issue: digicert.com flags:0
issue: globalsign.com flags:0
issue: sectigo.com flags:0
issuewild: digicert.com flags:0
issuewild: sectigo.com flags:0
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 2 (2990 bytes)
Chain issues None
#2
Subject DigiCert Global G2 TLS RSA SHA256 2020 CA1
Fingerprint SHA256: c8025f9fc65fdfc95b3ca8cc7867b9a587b5277973957917463fc813d0b625a9
Pin SHA256: Wec45nQiFwKvHtuHxSAMGkt19k+uPSw9JlEkxhvYPHk=
Valid until Sat, 29 Mar 2031 23:59:59 UTC (expires in 7 years and 1 month)
Key RSA 2048 bits (e 65537)
Issuer DigiCert Global Root G2
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Trusted
1 Sent by server github.com
Fingerprint SHA256: 477022360c3af6ba9838cfb2d68f79768c95902946c0117bdd0220b167e7b625
Pin SHA256: jSd+RbSAB3215SSioJKeyfdEFELVT/xz+Fwod2ypqtE=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server DigiCert Global G2 TLS RSA SHA256 2020 CA1
Fingerprint SHA256: c8025f9fc65fdfc95b3ca8cc7867b9a587b5277973957917463fc813d0b625a9
Pin SHA256: Wec45nQiFwKvHtuHxSAMGkt19k+uPSw9JlEkxhvYPHk=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=

RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server github.com
Fingerprint SHA256: 477022360c3af6ba9838cfb2d68f79768c95902946c0117bdd0220b167e7b625
Pin SHA256: jSd+RbSAB3215SSioJKeyfdEFELVT/xz+Fwod2ypqtE=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server DigiCert Global G2 TLS RSA SHA256 2020 CA1
Fingerprint SHA256: c8025f9fc65fdfc95b3ca8cc7867b9a587b5277973957917463fc813d0b625a9
Pin SHA256: Wec45nQiFwKvHtuHxSAMGkt19k+uPSw9JlEkxhvYPHk=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=

RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server github.com
Fingerprint SHA256: 477022360c3af6ba9838cfb2d68f79768c95902946c0117bdd0220b167e7b625
Pin SHA256: jSd+RbSAB3215SSioJKeyfdEFELVT/xz+Fwod2ypqtE=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server DigiCert Global G2 TLS RSA SHA256 2020 CA1
Fingerprint SHA256: c8025f9fc65fdfc95b3ca8cc7867b9a587b5277973957917463fc813d0b625a9
Pin SHA256: Wec45nQiFwKvHtuHxSAMGkt19k+uPSw9JlEkxhvYPHk=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=

RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server github.com
Fingerprint SHA256: 477022360c3af6ba9838cfb2d68f79768c95902946c0117bdd0220b167e7b625
Pin SHA256: jSd+RbSAB3215SSioJKeyfdEFELVT/xz+Fwod2ypqtE=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server DigiCert Global G2 TLS RSA SHA256 2020 CA1
Fingerprint SHA256: c8025f9fc65fdfc95b3ca8cc7867b9a587b5277973957917463fc813d0b625a9
Pin SHA256: Wec45nQiFwKvHtuHxSAMGkt19k+uPSw9JlEkxhvYPHk=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=

RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server github.com
Fingerprint SHA256: 477022360c3af6ba9838cfb2d68f79768c95902946c0117bdd0220b167e7b625
Pin SHA256: jSd+RbSAB3215SSioJKeyfdEFELVT/xz+Fwod2ypqtE=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server DigiCert Global G2 TLS RSA SHA256 2020 CA1
Fingerprint SHA256: c8025f9fc65fdfc95b3ca8cc7867b9a587b5277973957917463fc813d0b625a9
Pin SHA256: Wec45nQiFwKvHtuHxSAMGkt19k+uPSw9JlEkxhvYPHk=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=

RSA 2048 bits (e 65537) / SHA256withRSA

Click here to expand

Certificate #2: EC 256 bits (SHA384withECDSA)
Server Key and Certificate #1
Subject github.com
Fingerprint SHA256: 92a37fbd5e21a53a95c716e1144f442f582b94d0fafc673eb6717a4eb51a88a7
Pin SHA256: YH8+l6PDvIo1Q5o6varvw2edPgfyJFY5fHuSlsVdvdc=
Common names github.com
Alternative names github.com www.github.com
Serial Number 0cd0a8bec632cfe645eca0a9b084fb1c
Valid from Tue, 14 Feb 2023 00:00:00 UTC
Valid until Thu, 14 Mar 2024 23:59:59 UTC (expires in 1 month and 9 days)
Key EC 256 bits
Weak key (Debian) No
Issuer DigiCert TLS Hybrid ECC SHA384 2020 CA1
AIA: http://cacerts.digicert.com/DigiCertTLSHybridECCSHA3842020CA1-1.crt
Signature algorithm SHA384withECDSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL, OCSP
CRL: http://crl3.digicert.com/DigiCertTLSHybridECCSHA3842020CA1-1.crl
OCSP: http://ocsp.digicert.com
Revocation status Good (not revoked)
DNS CAA Yes
policy host: github.com
issue: digicert.com flags:0
issue: globalsign.com flags:0
issue: sectigo.com flags:0
issuewild: digicert.com flags:0
issuewild: sectigo.com flags:0
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 2 (2441 bytes)
Chain issues None
#2
Subject DigiCert TLS Hybrid ECC SHA384 2020 CA1
Fingerprint SHA256: f7a9a1b2fd964a3f2670bd668d561fb7c55d3aa9ab8391e7e169702db8a3dbcf
Pin SHA256: e0IRz5Tio3GA1Xs4fUVWmH1xHDiH2dMbVtCBSkOIdqM=
Valid until Sun, 13 Apr 2031 23:59:59 UTC (expires in 7 years and 2 months)
Key EC 384 bits
Issuer DigiCert Global Root CA
Signature algorithm SHA384withRSA


Certification Paths
Path #1: Trusted
1 Sent by server github.com
Fingerprint SHA256: 92a37fbd5e21a53a95c716e1144f442f582b94d0fafc673eb6717a4eb51a88a7
Pin SHA256: YH8+l6PDvIo1Q5o6varvw2edPgfyJFY5fHuSlsVdvdc=

EC 256 bits / SHA384withECDSA
2 Sent by server DigiCert TLS Hybrid ECC SHA384 2020 CA1
Fingerprint SHA256: f7a9a1b2fd964a3f2670bd668d561fb7c55d3aa9ab8391e7e169702db8a3dbcf
Pin SHA256: e0IRz5Tio3GA1Xs4fUVWmH1xHDiH2dMbVtCBSkOIdqM=

EC 384 bits / SHA384withRSA
3 In trust store DigiCert Global Root CA   Self-signed
Fingerprint SHA256: 4348a0e9444c78cb265e058d5e8944b4d84f9662bd26db257f8934a443c70161
Pin SHA256: r/mIkG3eEpVdm+u/ko/cwxzOMo1bk4TyHIlByibiA5E=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server github.com
Fingerprint SHA256: 92a37fbd5e21a53a95c716e1144f442f582b94d0fafc673eb6717a4eb51a88a7
Pin SHA256: YH8+l6PDvIo1Q5o6varvw2edPgfyJFY5fHuSlsVdvdc=

EC 256 bits / SHA384withECDSA
2 Sent by server DigiCert TLS Hybrid ECC SHA384 2020 CA1
Fingerprint SHA256: f7a9a1b2fd964a3f2670bd668d561fb7c55d3aa9ab8391e7e169702db8a3dbcf
Pin SHA256: e0IRz5Tio3GA1Xs4fUVWmH1xHDiH2dMbVtCBSkOIdqM=

EC 384 bits / SHA384withRSA
3 In trust store DigiCert Global Root CA   Self-signed
Fingerprint SHA256: 4348a0e9444c78cb265e058d5e8944b4d84f9662bd26db257f8934a443c70161
Pin SHA256: r/mIkG3eEpVdm+u/ko/cwxzOMo1bk4TyHIlByibiA5E=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server github.com
Fingerprint SHA256: 92a37fbd5e21a53a95c716e1144f442f582b94d0fafc673eb6717a4eb51a88a7
Pin SHA256: YH8+l6PDvIo1Q5o6varvw2edPgfyJFY5fHuSlsVdvdc=

EC 256 bits / SHA384withECDSA
2 Sent by server DigiCert TLS Hybrid ECC SHA384 2020 CA1
Fingerprint SHA256: f7a9a1b2fd964a3f2670bd668d561fb7c55d3aa9ab8391e7e169702db8a3dbcf
Pin SHA256: e0IRz5Tio3GA1Xs4fUVWmH1xHDiH2dMbVtCBSkOIdqM=

EC 384 bits / SHA384withRSA
3 In trust store DigiCert Global Root CA   Self-signed
Fingerprint SHA256: 4348a0e9444c78cb265e058d5e8944b4d84f9662bd26db257f8934a443c70161
Pin SHA256: r/mIkG3eEpVdm+u/ko/cwxzOMo1bk4TyHIlByibiA5E=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server github.com
Fingerprint SHA256: 92a37fbd5e21a53a95c716e1144f442f582b94d0fafc673eb6717a4eb51a88a7
Pin SHA256: YH8+l6PDvIo1Q5o6varvw2edPgfyJFY5fHuSlsVdvdc=

EC 256 bits / SHA384withECDSA
2 Sent by server DigiCert TLS Hybrid ECC SHA384 2020 CA1
Fingerprint SHA256: f7a9a1b2fd964a3f2670bd668d561fb7c55d3aa9ab8391e7e169702db8a3dbcf
Pin SHA256: e0IRz5Tio3GA1Xs4fUVWmH1xHDiH2dMbVtCBSkOIdqM=

EC 384 bits / SHA384withRSA
3 In trust store DigiCert Global Root CA   Self-signed
Fingerprint SHA256: 4348a0e9444c78cb265e058d5e8944b4d84f9662bd26db257f8934a443c70161
Pin SHA256: r/mIkG3eEpVdm+u/ko/cwxzOMo1bk4TyHIlByibiA5E=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server github.com
Fingerprint SHA256: 92a37fbd5e21a53a95c716e1144f442f582b94d0fafc673eb6717a4eb51a88a7
Pin SHA256: YH8+l6PDvIo1Q5o6varvw2edPgfyJFY5fHuSlsVdvdc=

EC 256 bits / SHA384withECDSA
2 Sent by server DigiCert TLS Hybrid ECC SHA384 2020 CA1
Fingerprint SHA256: f7a9a1b2fd964a3f2670bd668d561fb7c55d3aa9ab8391e7e169702db8a3dbcf
Pin SHA256: e0IRz5Tio3GA1Xs4fUVWmH1xHDiH2dMbVtCBSkOIdqM=

EC 384 bits / SHA384withRSA
3 In trust store DigiCert Global Root CA   Self-signed
Fingerprint SHA256: 4348a0e9444c78cb265e058d5e8944b4d84f9662bd26db257f8934a443c70161
Pin SHA256: r/mIkG3eEpVdm+u/ko/cwxzOMo1bk4TyHIlByibiA5E=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate

Click here to expand

Configuration
Protocols
TLS 1.3 Yes
TLS 1.2 Yes
TLS 1.1 No
TLS 1.0 No
SSL 3 No
SSL 2 No


Cipher Suites
# TLS 1.3 (suites in server-preferred order)
TLS_AES_128_GCM_SHA256 (0x1301)   ECDH x25519 (eq. 3072 bits RSA)   FS 128
TLS_CHACHA20_POLY1305_SHA256 (0x1303)   ECDH x25519 (eq. 3072 bits RSA)   FS 256P
TLS_AES_256_GCM_SHA384 (0x1302)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
# TLS 1.2 (suites in server-preferred order)
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 (0xc02b)   ECDH x25519 (eq. 3072 bits RSA)   FS 128
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca9)   ECDH x25519 (eq. 3072 bits RSA)   FS 256P
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 (0xc02c)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 (0xc023)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 (0xc024)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA (0xc00a)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)   ECDH x25519 (eq. 3072 bits RSA)   FS 128
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c)   WEAK 128
TLS_RSA_WITH_AES_256_GCM_SHA384 (0x9d)   WEAK 256
TLS_RSA_WITH_AES_128_CBC_SHA256 (0x3c)   WEAK 128
TLS_RSA_WITH_AES_256_CBC_SHA256 (0x3d)   WEAK 256
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)   WEAK 256
(P) This server prefers ChaCha20 suites with clients that don't have AES-NI (e.g., Android devices)


Handshake Simulation
Android 4.4.2 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 5.0.0 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 6.0 EC 256 (SHA384)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 7.0 EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Android 8.0 EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Android 8.1 -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Android 9.0 -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
BingPreview Jan 2015 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 49 / XP SP3 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 69 / Win 7  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Chrome 70 / Win 10 -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  FS
Chrome 80 / Win 10  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  FS
Firefox 31.3.0 ESR / Win 7 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 47 / Win 7  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 49 / XP SP3 EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 62 / Win 7  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Firefox 73 / Win 10  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  FS
Googlebot Feb 2018 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
IE 11 / Win 7  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
IE 11 / Win 8.1  R EC 256 (SHA384)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
IE 11 / Win Phone 8.1  R EC 256 (SHA384)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
IE 11 / Win Phone 8.1 Update  R EC 256 (SHA384)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
IE 11 / Win 10  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Edge 15 / Win 10  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Edge 16 / Win 10  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Edge 18 / Win 10  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Edge 13 / Win Phone 10  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Java 8u161 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Java 11.0.3 -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
Java 12.0.1 -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.0.1l  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.0.2s  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.1.0k  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
OpenSSL 1.1.1c  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  FS
Safari 6 / iOS 6.0.1 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
Safari 7 / iOS 7.1  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
Safari 7 / OS X 10.9  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
Safari 8 / iOS 8.4  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
Safari 8 / OS X 10.10  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
Safari 9 / iOS 9  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 9 / OS X 10.11  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 10 / iOS 10  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 10 / OS X 10.12  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 12.1.2 / MacOS 10.14.6 Beta  R -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Safari 12.1.1 / iOS 12.3.1  R -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Apple ATS 9 / iOS 9  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Yahoo Slurp Jan 2015 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
YandexBot Jan 2015 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
# Not simulated clients (Protocol mismatch)
Android 2.3.7   No SNI 2 Protocol mismatch (not simulated)
Android 4.0.4 Protocol mismatch (not simulated)
Android 4.1.1 Protocol mismatch (not simulated)
Android 4.2.2 Protocol mismatch (not simulated)
Android 4.3 Protocol mismatch (not simulated)
Baidu Jan 2015 Protocol mismatch (not simulated)
IE 6 / XP   No FS 1   No SNI 2 Protocol mismatch (not simulated)
IE 7 / Vista Protocol mismatch (not simulated)
IE 8 / XP   No FS 1   No SNI 2 Protocol mismatch (not simulated)
IE 8-10 / Win 7  R Protocol mismatch (not simulated)
IE 10 / Win Phone 8.0 Protocol mismatch (not simulated)
Java 6u45   No SNI 2 Protocol mismatch (not simulated)
Java 7u25 Protocol mismatch (not simulated)
OpenSSL 0.9.8y Protocol mismatch (not simulated)
Safari 5.1.9 / OS X 10.6.8 Protocol mismatch (not simulated)
Safari 6.0.4 / OS X 10.8.4  R Protocol mismatch (not simulated)

Click here to expand

(1) Clients that do not support Forward Secrecy (FS) are excluded when determining support for it.
(2) No support for virtual SSL hosting (SNI). Connects to the default site if the server uses SNI.
(3) Only first connection attempt simulated. Browsers sometimes retry with a lower protocol version.
(R) Denotes a reference browser or client, with which we expect better effective security.
(All) We use defaults, but some platforms do not use their best protocols and features (e.g., Java 6 & 7, older IE).
(All) Certificate trust is not checked in handshake simulation, we only perform TLS handshake.


Protocol Details
DROWN Unable to perform this test due to an internal error.
(1) For a better understanding of this test, please read this longer explanation
(2) Key usage data kindly provided by the Censys network search engine; original DROWN website here
(3) Censys data is only indicative of possible key and certificate reuse; possibly out-of-date and not complete
INTERNAL ERROR: test.drownattack.com
INTERNAL ERROR: test.drownattack.com
Secure Renegotiation Supported
Secure Client-Initiated Renegotiation No
Insecure Client-Initiated Renegotiation No
BEAST attack Mitigated server-side (more info)  
POODLE (SSLv3) No, SSL 3 not supported (more info)
POODLE (TLS) No (more info)
Zombie POODLE No (more info)   TLS 1.2 : 0xc023
GOLDENDOODLE No (more info)   TLS 1.2 : 0xc023
OpenSSL 0-Length No (more info)   TLS 1.2 : 0xc023
Sleeping POODLE No (more info)   TLS 1.2 : 0xc023
Downgrade attack prevention Yes, TLS_FALLBACK_SCSV supported (more info)
SSL/TLS compression No
RC4 No
Heartbeat (extension) No
Heartbleed (vulnerability) No (more info)
Ticketbleed (vulnerability) No (more info)
OpenSSL CCS vuln. (CVE-2014-0224) No (more info)
OpenSSL Padding Oracle vuln.
(CVE-2016-2107)
No (more info)
ROBOT (vulnerability) No (more info)
Forward Secrecy Yes (with most browsers)   ROBUST (more info)
ALPN Yes   h2 http/1.1
NPN No
Session resumption (caching) No (IDs empty)
Session resumption (tickets) No
OCSP stapling No
Strict Transport Security (HSTS) Yes
max-age=31536000; includeSubdomains; preload
HSTS Preloading Chrome  Edge  Firefox  IE   
Public Key Pinning (HPKP) No (more info)
Public Key Pinning Report-Only No
Public Key Pinning (Static) No (more info)
Long handshake intolerance No
TLS extension intolerance No
TLS version intolerance No
Incorrect SNI alerts No
Uses common DH primes No, DHE suites not supported
DH public server param (Ys) reuse No, DHE suites not supported
ECDH public server param reuse No
Supported Named Groups x25519, secp256r1 (server preferred order)
SSL 2 handshake compatibility No
0-RTT enabled No


HTTP Requests
1 https://github.com/  (HTTP/1.1 200 OK)
1
Server GitHub.com
Date Mon, 05 Feb 2024 01:58:05 GMT
Content-Type text/html; charset=utf-8
Vary X-PJAX, X-PJAX-Container, Turbo-Visit, Turbo-Frame, Accept-Language, Accept-Encoding, Accept, X-Requested-With
content-language en-US
ETag W/"c7c7387ca253b56b82e5bd331b2ce9fc"
Cache-Control max-age=0, private, must-revalidate
Strict-Transport-Security max-age=31536000; includeSubdomains; preload
X-Frame-Options deny
X-Content-Type-Options nosniff
X-XSS-Protection 0
Referrer-Policy origin-when-cross-origin, strict-origin-when-cross-origin
Content-Security-Policy default-src 'none'; base-uri 'self'; child-src github.com/assets-cdn/worker/ gist.github.com/assets-cdn/worker/; connect-src 'self' uploads.github.com www.githubstatus.com collector.github.com raw.githubusercontent.com api.github.com github-cloud.s3.amazonaws.com github-production-repository-file-5c1aeb.s3.amazonaws.com github-production-upload-manifest-file-7fdce7.s3.amazonaws.com github-production-user-asset-6210df.s3.amazonaws.com cdn.optimizely.com logx.optimizely.com/v1/events api.githubcopilot.com objects-origin.githubusercontent.com *.actions.githubusercontent.com wss://*.actions.githubusercontent.com productionresultssa0.blob.core.windows.net/ productionresultssa1.blob.core.windows.net/ productionresultssa2.blob.core.windows.net/ productionresultssa3.blob.core.windows.net/ productionresultssa4.blob.core.windows.net/ productionresultssa5.blob.core.windows.net/ productionresultssa6.blob.core.windows.net/ productionresultssa7.blob.core.windows.net/ productionresultssa8.blob.core.windows.net/ productionresultssa9.blob.core.windows.net/ productionresultssa10.blob.core.windows.net/ productionresultssa11.blob.core.windows.net/ productionresultssa12.blob.core.windows.net/ productionresultssa13.blob.core.windows.net/ productionresultssa14.blob.core.windows.net/ productionresultssa15.blob.core.windows.net/ productionresultssa16.blob.core.windows.net/ productionresultssa17.blob.core.windows.net/ productionresultssa18.blob.core.windows.net/ productionresultssa19.blob.core.windows.net/ github-production-repository-image-32fea6.s3.amazonaws.com github-production-release-asset-2e65be.s3.amazonaws.com insights.github.com wss://alive.github.com github.githubassets.com; font-src github.githubassets.com; form-action 'self' github.com gist.github.com objects-origin.githubusercontent.com; frame-ancestors 'none'; frame-src viewscreen.githubusercontent.com notebooks.githubusercontent.com; img-src 'self' data: github.githubassets.com media.githubusercontent.com camo.githubusercontent.com identicons.github.com avatars.githubusercontent.com github-cloud.s3.amazonaws.com objects.githubusercontent.com secured-user-images.githubusercontent.com/ user-images.githubusercontent.com/ private-user-images.githubusercontent.com opengraph.githubassets.com github-production-user-asset-6210df.s3.amazonaws.com customer-stories-feed.github.com spotlights-feed.github.com objects-origin.githubusercontent.com *.githubusercontent.com; manifest-src 'self'; media-src github.com user-images.githubusercontent.com/ secured-user-images.githubusercontent.com/ private-user-images.githubusercontent.com github-production-user-asset-6210df.s3.amazonaws.com gist.github.com github.githubassets.com; script-src github.githubassets.com; style-src 'unsafe-inline' github.githubassets.com; upgrade-insecure-requests; worker-src github.com/assets-cdn/worker/ gist.github.com/assets-cdn/worker/
Set-Cookie _gh_sess=Y4QH5AtHvAOzEx3%2FUym6KPr5A9REx2L7hna7CeW4fhjqgLXhCPWV7nFFbEyQhpGHLQ0l8ebGqvja7Hw22wbSXCMnzGY9pVLaBRueeEotz3pftrsMD%2BpdQC17VzHiQppGVJCDbyC5GOQ3EJ1f1QhfowBYCOuQz%2BXs38tY9%2FyfKwuTCiRaYVW0SBrOGITQy%2FCSqdJhtLMoiK2J0dmWYZWEKwNMuvKEECwhKR%2F%2FgEbxGYpjmaV0hME4iZqaSi9%2BB%2FKKZlzAwIb2IYRfg8HfkdR8ig%3D%3D--plD3%2FY85UYNJrlSw--WJDRpX1uphGsdhABeNRd8A%3D%3D; Path=/; HttpOnly; Secure; SameSite=Lax
Set-Cookie _octo=GH1.1.122907692.1707098288; Path=/; Domain=github.com; Expires=Wed, 05 Feb 2025 01:58:08 GMT; Secure; SameSite=Lax
Set-Cookie logged_in=no; Path=/; Domain=github.com; Expires=Wed, 05 Feb 2025 01:58:08 GMT; HttpOnly; Secure; SameSite=Lax
Accept-Ranges bytes
Transfer-Encoding chunked
X-GitHub-Request-Id CA8A:1D4A:21E0687:2E99BD9:65C040B0
connection close


Miscellaneous
Test date Mon, 05 Feb 2024 01:57:55 UTC
Test duration 105.13 seconds
HTTP status code 200
HTTP server signature GitHub.com
Server hostname lb-140-82-114-3-iad.github.com


SSL Report v2.2.0