SSL Report: api.acc.tennet.eu (51.144.238.187)
Assessed on:  Mon, 28 Jul 2025 09:57:42 UTC | 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 site works only in browsers with SNI support.
This server supports TLS 1.3.  MORE INFO »
HTTP Strict Transport Security (HSTS) with long duration deployed on this server.  MORE INFO »
Certificate #1: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject api.acc.tennet.eu
Fingerprint SHA256: cbb8dc1914a4aaa97233e346b4ffdc47aa3e97e4c00f5abd26bc10bab40e414c
Pin SHA256: vowQKn/z3peD3+8+K1Mnr/W7TQFvt9Kie8DUY204xlY=
Common names api.acc.tennet.eu
Alternative names api.acc.tennet.eu
Serial Number 0d046e8dd27d805bd28fd05d8d42e6a5
Valid from Tue, 20 Aug 2024 00:00:00 UTC
Valid until Tue, 19 Aug 2025 23:59:59 UTC (expires in 22 days, 8 hours)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1
AIA: http://cacerts.digicert.eu/DigiCertG2TLSEURSA4096SHA3842022CA1.crt
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL, OCSP
CRL: http://crl.digicert.eu/DigiCertG2TLSEURSA4096SHA3842022CA1.crl
OCSP: http://ocsp.digicert.eu
Revocation status Good (not revoked)
DNS CAA No (more info)
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 3 (4350 bytes)
Chain issues Contains anchor
#2
Subject DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1
Fingerprint SHA256: a4adfc2917bb1451d312371d441acdb686107fbc0b3156d5570e99e1121974fa
Pin SHA256: lXt3ip5lkns+fBxV/S9MSfUx0UUdhBEmhXz5PkrAWGg=
Valid until Sat, 18 Sep 2032 23:59:59 UTC (expires in 7 years and 1 month)
Key RSA 4096 bits (e 65537)
Issuer DigiCert Global Root G2
Signature algorithm SHA384withRSA
#3
Subject DigiCert Global Root G2   In trust store
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=
Valid until Fri, 15 Jan 2038 12:00:00 UTC (expires in 12 years and 5 months)
Key RSA 2048 bits (e 65537)
Issuer DigiCert Global Root G2   Self-signed
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Trusted
1 Sent by server api.acc.tennet.eu
Fingerprint SHA256: cbb8dc1914a4aaa97233e346b4ffdc47aa3e97e4c00f5abd26bc10bab40e414c
Pin SHA256: vowQKn/z3peD3+8+K1Mnr/W7TQFvt9Kie8DUY204xlY=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1
Fingerprint SHA256: a4adfc2917bb1451d312371d441acdb686107fbc0b3156d5570e99e1121974fa
Pin SHA256: lXt3ip5lkns+fBxV/S9MSfUx0UUdhBEmhXz5PkrAWGg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 Sent by server
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 api.acc.tennet.eu
Fingerprint SHA256: cbb8dc1914a4aaa97233e346b4ffdc47aa3e97e4c00f5abd26bc10bab40e414c
Pin SHA256: vowQKn/z3peD3+8+K1Mnr/W7TQFvt9Kie8DUY204xlY=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1
Fingerprint SHA256: a4adfc2917bb1451d312371d441acdb686107fbc0b3156d5570e99e1121974fa
Pin SHA256: lXt3ip5lkns+fBxV/S9MSfUx0UUdhBEmhXz5PkrAWGg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 Sent by server
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 api.acc.tennet.eu
Fingerprint SHA256: cbb8dc1914a4aaa97233e346b4ffdc47aa3e97e4c00f5abd26bc10bab40e414c
Pin SHA256: vowQKn/z3peD3+8+K1Mnr/W7TQFvt9Kie8DUY204xlY=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1
Fingerprint SHA256: a4adfc2917bb1451d312371d441acdb686107fbc0b3156d5570e99e1121974fa
Pin SHA256: lXt3ip5lkns+fBxV/S9MSfUx0UUdhBEmhXz5PkrAWGg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 Sent by server
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 api.acc.tennet.eu
Fingerprint SHA256: cbb8dc1914a4aaa97233e346b4ffdc47aa3e97e4c00f5abd26bc10bab40e414c
Pin SHA256: vowQKn/z3peD3+8+K1Mnr/W7TQFvt9Kie8DUY204xlY=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1
Fingerprint SHA256: a4adfc2917bb1451d312371d441acdb686107fbc0b3156d5570e99e1121974fa
Pin SHA256: lXt3ip5lkns+fBxV/S9MSfUx0UUdhBEmhXz5PkrAWGg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 Sent by server
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 api.acc.tennet.eu
Fingerprint SHA256: cbb8dc1914a4aaa97233e346b4ffdc47aa3e97e4c00f5abd26bc10bab40e414c
Pin SHA256: vowQKn/z3peD3+8+K1Mnr/W7TQFvt9Kie8DUY204xlY=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1
Fingerprint SHA256: a4adfc2917bb1451d312371d441acdb686107fbc0b3156d5570e99e1121974fa
Pin SHA256: lXt3ip5lkns+fBxV/S9MSfUx0UUdhBEmhXz5PkrAWGg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 Sent by server
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: RSA 2048 bits (SHA256withRSA) No SNI
Server Key and Certificate #1
Subject keycloak-admin.acc.tmac.mcp.alfa.local
Fingerprint SHA256: 754ea931e6b5a36f3899434a9ad5b39b8927b73537e60546426bcd3b05a0e54a
Pin SHA256: z9s0RQSf6vC5oDPiZAOIrg3QtUrlladPRkkwswH5S/M=
Common names keycloak-admin.acc.tmac.mcp.alfa.local
Alternative names keycloak-admin.acc.tmac.mcp.alfa.local   MISMATCH
Serial Number 1500002e9b47e5d0818338bc96000200002e9b
Valid from Fri, 20 Sep 2024 13:49:55 UTC
Valid until Sun, 20 Sep 2026 13:49:55 UTC (expires in 1 year and 1 month)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer PKI Alfa Intermediate-Process-Manual
AIA: ldap:///CN=PKI%20Alfa%20Intermediate-Process-Manual,CN=AIA,CN=Public%20Key%20Services,CN=Services,CN=Configuration,DC=alfa,DC=local?cACertificate?base?objectClass=certificationAuthority
AIA: http://pki.alfa.local/PKI%20Alfa%20Intermediate-Process-Manual(2).crt
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency No
OCSP Must Staple No
Revocation information None
Trusted No   NOT TRUSTED
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 5 (9495 bytes)
Chain issues Contains anchor
#2
Subject PKI Alfa Intermediate-Process-Manual
Fingerprint SHA256: 8f659e9ed516422c3933452e33e38c25ec812dbe3fcdf504b692cc22765ca6ab
Pin SHA256: 9AirXRZnSfFQOlwHJdJqEn4JO4uyYcp5V03a6htMeBs=
Valid until Wed, 06 Oct 2027 10:00:57 UTC (expires in 2 years and 2 months)
Key RSA 2048 bits (e 65537)
Issuer PKI Alfa Intermediate-Process
Signature algorithm SHA256withRSA
#3
Subject PKI Alfa Intermediate-Process
Fingerprint SHA256: 8488bea6c64385d30e9af7e1126fa4a614bcedab3dbb60691520513646e9c98f
Pin SHA256: gGxsfUEIfOSZaj8aUPKywRsfBlBegPuCkjkym7yC0nc=
Valid until Sun, 21 Mar 2032 12:29:26 UTC (expires in 6 years and 7 months)
Key RSA 4096 bits (e 65537)
Issuer PKI Alfa-Intermediate
Signature algorithm SHA256withRSA
#4
Subject PKI Alfa-Intermediate
Fingerprint SHA256: 3ddc2793553ec5bad6884b82fdd3d8d23e324b226f9676bce324a095e579cb26
Pin SHA256: dA7jLyc1Fh/0NkeGHZotM3OxKewIXpkKG0vQOtKyvzc=
Valid until Sun, 13 Nov 2033 06:57:41 UTC (expires in 8 years and 3 months)
Key RSA 4096 bits (e 65537)
Issuer PKI Alfa Root CA
Signature algorithm SHA256withRSA
#5
Subject PKI Alfa Root CA   Not in trust store
Fingerprint SHA256: eb3f300f84cfdb47d9b945a77b6f86daf4ab6740162523868dd47de8d003b9ba
Pin SHA256: KfYx8KLMtGo2AaH+OmfhAv0x2i5tra3zFHL4h7Mt2t0=
Valid until Tue, 11 Oct 2033 08:10:02 UTC (expires in 8 years and 2 months)
Key RSA 4096 bits (e 65537)
Issuer PKI Alfa Root CA   Self-signed
Signature algorithm SHA512withRSA


Certification Paths
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server keycloak-admin.acc.tmac.mcp.alfa.local
Fingerprint SHA256: 754ea931e6b5a36f3899434a9ad5b39b8927b73537e60546426bcd3b05a0e54a
Pin SHA256: z9s0RQSf6vC5oDPiZAOIrg3QtUrlladPRkkwswH5S/M=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server PKI Alfa Intermediate-Process-Manual
Fingerprint SHA256: 8f659e9ed516422c3933452e33e38c25ec812dbe3fcdf504b692cc22765ca6ab
Pin SHA256: 9AirXRZnSfFQOlwHJdJqEn4JO4uyYcp5V03a6htMeBs=
RSA 2048 bits (e 65537) / SHA256withRSA
3 Sent by server PKI Alfa Intermediate-Process
Fingerprint SHA256: 8488bea6c64385d30e9af7e1126fa4a614bcedab3dbb60691520513646e9c98f
Pin SHA256: gGxsfUEIfOSZaj8aUPKywRsfBlBegPuCkjkym7yC0nc=
RSA 4096 bits (e 65537) / SHA256withRSA
4 Sent by server PKI Alfa-Intermediate
Fingerprint SHA256: 3ddc2793553ec5bad6884b82fdd3d8d23e324b226f9676bce324a095e579cb26
Pin SHA256: dA7jLyc1Fh/0NkeGHZotM3OxKewIXpkKG0vQOtKyvzc=
RSA 4096 bits (e 65537) / SHA256withRSA
5 Sent by server
  Not in trust store 		PKI Alfa Root CA   Self-signed
Fingerprint SHA256: eb3f300f84cfdb47d9b945a77b6f86daf4ab6740162523868dd47de8d003b9ba
Pin SHA256: KfYx8KLMtGo2AaH+OmfhAv0x2i5tra3zFHL4h7Mt2t0=
RSA 4096 bits (e 65537) / SHA512withRSA
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server keycloak-admin.acc.tmac.mcp.alfa.local
Fingerprint SHA256: 754ea931e6b5a36f3899434a9ad5b39b8927b73537e60546426bcd3b05a0e54a
Pin SHA256: z9s0RQSf6vC5oDPiZAOIrg3QtUrlladPRkkwswH5S/M=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server PKI Alfa Intermediate-Process-Manual
Fingerprint SHA256: 8f659e9ed516422c3933452e33e38c25ec812dbe3fcdf504b692cc22765ca6ab
Pin SHA256: 9AirXRZnSfFQOlwHJdJqEn4JO4uyYcp5V03a6htMeBs=
RSA 2048 bits (e 65537) / SHA256withRSA
3 Sent by server PKI Alfa Intermediate-Process
Fingerprint SHA256: 8488bea6c64385d30e9af7e1126fa4a614bcedab3dbb60691520513646e9c98f
Pin SHA256: gGxsfUEIfOSZaj8aUPKywRsfBlBegPuCkjkym7yC0nc=
RSA 4096 bits (e 65537) / SHA256withRSA
4 Sent by server PKI Alfa-Intermediate
Fingerprint SHA256: 3ddc2793553ec5bad6884b82fdd3d8d23e324b226f9676bce324a095e579cb26
Pin SHA256: dA7jLyc1Fh/0NkeGHZotM3OxKewIXpkKG0vQOtKyvzc=
RSA 4096 bits (e 65537) / SHA256withRSA
5 Sent by server
  Not in trust store 		PKI Alfa Root CA   Self-signed
Fingerprint SHA256: eb3f300f84cfdb47d9b945a77b6f86daf4ab6740162523868dd47de8d003b9ba
Pin SHA256: KfYx8KLMtGo2AaH+OmfhAv0x2i5tra3zFHL4h7Mt2t0=
RSA 4096 bits (e 65537) / SHA512withRSA
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server keycloak-admin.acc.tmac.mcp.alfa.local
Fingerprint SHA256: 754ea931e6b5a36f3899434a9ad5b39b8927b73537e60546426bcd3b05a0e54a
Pin SHA256: z9s0RQSf6vC5oDPiZAOIrg3QtUrlladPRkkwswH5S/M=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server PKI Alfa Intermediate-Process-Manual
Fingerprint SHA256: 8f659e9ed516422c3933452e33e38c25ec812dbe3fcdf504b692cc22765ca6ab
Pin SHA256: 9AirXRZnSfFQOlwHJdJqEn4JO4uyYcp5V03a6htMeBs=
RSA 2048 bits (e 65537) / SHA256withRSA
3 Sent by server PKI Alfa Intermediate-Process
Fingerprint SHA256: 8488bea6c64385d30e9af7e1126fa4a614bcedab3dbb60691520513646e9c98f
Pin SHA256: gGxsfUEIfOSZaj8aUPKywRsfBlBegPuCkjkym7yC0nc=
RSA 4096 bits (e 65537) / SHA256withRSA
4 Sent by server PKI Alfa-Intermediate
Fingerprint SHA256: 3ddc2793553ec5bad6884b82fdd3d8d23e324b226f9676bce324a095e579cb26
Pin SHA256: dA7jLyc1Fh/0NkeGHZotM3OxKewIXpkKG0vQOtKyvzc=
RSA 4096 bits (e 65537) / SHA256withRSA
5 Sent by server
  Not in trust store 		PKI Alfa Root CA   Self-signed
Fingerprint SHA256: eb3f300f84cfdb47d9b945a77b6f86daf4ab6740162523868dd47de8d003b9ba
Pin SHA256: KfYx8KLMtGo2AaH+OmfhAv0x2i5tra3zFHL4h7Mt2t0=
RSA 4096 bits (e 65537) / SHA512withRSA
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server keycloak-admin.acc.tmac.mcp.alfa.local
Fingerprint SHA256: 754ea931e6b5a36f3899434a9ad5b39b8927b73537e60546426bcd3b05a0e54a
Pin SHA256: z9s0RQSf6vC5oDPiZAOIrg3QtUrlladPRkkwswH5S/M=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server PKI Alfa Intermediate-Process-Manual
Fingerprint SHA256: 8f659e9ed516422c3933452e33e38c25ec812dbe3fcdf504b692cc22765ca6ab
Pin SHA256: 9AirXRZnSfFQOlwHJdJqEn4JO4uyYcp5V03a6htMeBs=
RSA 2048 bits (e 65537) / SHA256withRSA
3 Sent by server PKI Alfa Intermediate-Process
Fingerprint SHA256: 8488bea6c64385d30e9af7e1126fa4a614bcedab3dbb60691520513646e9c98f
Pin SHA256: gGxsfUEIfOSZaj8aUPKywRsfBlBegPuCkjkym7yC0nc=
RSA 4096 bits (e 65537) / SHA256withRSA
4 Sent by server PKI Alfa-Intermediate
Fingerprint SHA256: 3ddc2793553ec5bad6884b82fdd3d8d23e324b226f9676bce324a095e579cb26
Pin SHA256: dA7jLyc1Fh/0NkeGHZotM3OxKewIXpkKG0vQOtKyvzc=
RSA 4096 bits (e 65537) / SHA256withRSA
5 Sent by server
  Not in trust store 		PKI Alfa Root CA   Self-signed
Fingerprint SHA256: eb3f300f84cfdb47d9b945a77b6f86daf4ab6740162523868dd47de8d003b9ba
Pin SHA256: KfYx8KLMtGo2AaH+OmfhAv0x2i5tra3zFHL4h7Mt2t0=
RSA 4096 bits (e 65537) / SHA512withRSA
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server keycloak-admin.acc.tmac.mcp.alfa.local
Fingerprint SHA256: 754ea931e6b5a36f3899434a9ad5b39b8927b73537e60546426bcd3b05a0e54a
Pin SHA256: z9s0RQSf6vC5oDPiZAOIrg3QtUrlladPRkkwswH5S/M=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server PKI Alfa Intermediate-Process-Manual
Fingerprint SHA256: 8f659e9ed516422c3933452e33e38c25ec812dbe3fcdf504b692cc22765ca6ab
Pin SHA256: 9AirXRZnSfFQOlwHJdJqEn4JO4uyYcp5V03a6htMeBs=
RSA 2048 bits (e 65537) / SHA256withRSA
3 Sent by server PKI Alfa Intermediate-Process
Fingerprint SHA256: 8488bea6c64385d30e9af7e1126fa4a614bcedab3dbb60691520513646e9c98f
Pin SHA256: gGxsfUEIfOSZaj8aUPKywRsfBlBegPuCkjkym7yC0nc=
RSA 4096 bits (e 65537) / SHA256withRSA
4 Sent by server PKI Alfa-Intermediate
Fingerprint SHA256: 3ddc2793553ec5bad6884b82fdd3d8d23e324b226f9676bce324a095e579cb26
Pin SHA256: dA7jLyc1Fh/0NkeGHZotM3OxKewIXpkKG0vQOtKyvzc=
RSA 4096 bits (e 65537) / SHA256withRSA
5 Sent by server
  Not in trust store 		PKI Alfa Root CA   Self-signed
Fingerprint SHA256: eb3f300f84cfdb47d9b945a77b6f86daf4ab6740162523868dd47de8d003b9ba
Pin SHA256: KfYx8KLMtGo2AaH+OmfhAv0x2i5tra3zFHL4h7Mt2t0=
RSA 4096 bits (e 65537) / SHA512withRSA

Click here to expand

Click here to expand

Configuration
Protocols
TLS 1.3 Yes
TLS 1.2 No
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_256_GCM_SHA384 (0x1302)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
TLS_AES_128_GCM_SHA256 (0x1301)   ECDH x25519 (eq. 3072 bits RSA)   FS 128


Handshake Simulation
Android 8.1 -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
Android 9.0 -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
Chrome 69 / Win 7  R Server sent fatal alert: handshake_failure
Chrome 70 / Win 10 -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
Chrome 80 / Win 10  R -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
Firefox 62 / Win 7  R Server sent fatal alert: handshake_failure
Firefox 73 / Win 10  R -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
Java 11.0.3 -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH secp256r1  FS
Java 12.0.1 -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH secp256r1  FS
OpenSSL 1.1.0k  R Server sent fatal alert: handshake_failure
OpenSSL 1.1.1c  R -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
Safari 12.1.2 / MacOS 10.14.6 Beta  R -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
Safari 12.1.1 / iOS 12.3.1  R -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  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)
Android 4.4.2 Protocol mismatch (not simulated)
Android 5.0.0 Protocol mismatch (not simulated)
Android 6.0 Protocol mismatch (not simulated)
Android 7.0 Protocol mismatch (not simulated)
Android 8.0 Protocol mismatch (not simulated)
Baidu Jan 2015 Protocol mismatch (not simulated)
BingPreview Jan 2015 Protocol mismatch (not simulated)
Chrome 49 / XP SP3 Protocol mismatch (not simulated)
Firefox 31.3.0 ESR / Win 7 Protocol mismatch (not simulated)
Firefox 47 / Win 7  R Protocol mismatch (not simulated)
Firefox 49 / XP SP3 Protocol mismatch (not simulated)
Googlebot Feb 2018 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 11 / Win 7  R Protocol mismatch (not simulated)
IE 11 / Win 8.1  R Protocol mismatch (not simulated)
IE 10 / Win Phone 8.0 Protocol mismatch (not simulated)
IE 11 / Win Phone 8.1  R Protocol mismatch (not simulated)
IE 11 / Win Phone 8.1 Update  R Protocol mismatch (not simulated)
IE 11 / Win 10  R Protocol mismatch (not simulated)
Edge 15 / Win 10  R Protocol mismatch (not simulated)
Edge 16 / Win 10  R Protocol mismatch (not simulated)
Edge 18 / Win 10  R Protocol mismatch (not simulated)
Edge 13 / Win Phone 10  R Protocol mismatch (not simulated)
Java 6u45   No SNI 2 Protocol mismatch (not simulated)
Java 7u25 Protocol mismatch (not simulated)
Java 8u161 Protocol mismatch (not simulated)
OpenSSL 0.9.8y Protocol mismatch (not simulated)
OpenSSL 1.0.1l  R Protocol mismatch (not simulated)
OpenSSL 1.0.2s  R Protocol mismatch (not simulated)
Safari 5.1.9 / OS X 10.6.8 Protocol mismatch (not simulated)
Safari 6 / iOS 6.0.1 Protocol mismatch (not simulated)
Safari 6.0.4 / OS X 10.8.4  R Protocol mismatch (not simulated)
Safari 7 / iOS 7.1  R Protocol mismatch (not simulated)
Safari 7 / OS X 10.9  R Protocol mismatch (not simulated)
Safari 8 / iOS 8.4  R Protocol mismatch (not simulated)
Safari 8 / OS X 10.10  R Protocol mismatch (not simulated)
Safari 9 / iOS 9  R Protocol mismatch (not simulated)
Safari 9 / OS X 10.11  R Protocol mismatch (not simulated)
Safari 10 / iOS 10  R Protocol mismatch (not simulated)
Safari 10 / OS X 10.12  R Protocol mismatch (not simulated)
Apple ATS 9 / iOS 9  R Protocol mismatch (not simulated)
Yahoo Slurp Jan 2015 Protocol mismatch (not simulated)
YandexBot Jan 2015 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
ROBOT (vulnerability) No (more info)
Forward Secrecy Yes (with most browsers)   ROBUST (more info)
ALPN Yes   h2 http/1.1
Session resumption (tickets) No
OCSP stapling Yes
Strict Transport Security (HSTS) Yes
max-age=31536000
HSTS Preloading Not in: Chrome  Edge  Firefox  IE 
Public Key Pinning (HPKP) No (more info)
Public Key Pinning Report-Only No
Public Key Pinning (Static) No (more info)
Supported Named Groups x25519, secp256r1, secp384r1, secp521r1 (server preferred order)
SSL 2 handshake compatibility No
0-RTT enabled No


HTTP Requests
1 https://api.acc.tennet.eu/  (HTTP/1.1 404 Not Found)
1
Date Mon, 28 Jul 2025 09:57:21 GMT
Content-Type application/json
Transfer-Encoding chunked
Connection close
vary Origin
Access-Control-Allow-Origin https://developer.acc.tennet.eu
Strict-Transport-Security max-age=31536000


Miscellaneous
Test date Mon, 28 Jul 2025 09:57:12 UTC
Test duration 30.3 seconds
HTTP status code 404
HTTP server signature -
Server hostname -


SSL Report v2.4.1