SSL Report: www.compendium.pl (20.215.249.137)
Assessed on:  Thu, 28 Aug 2025 17:01:07 UTC | Clear cache

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Summary
Overall Rating
A
0
20
40
60
80
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 »
Certificate #1: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject *.compendium.pl
Fingerprint SHA256: 44998c80d6ea18b7f1b29118a991b120cda0a3727e8e7439c84d180a1cdf8e1d
Pin SHA256: HXs/EW16UpUTkLya1ZqNdETC+ZENI1RaYX3BAIKljmg=
Common names *.compendium.pl
Alternative names *.compendium.pl *.certyfikatit.pl securityawareness.pl ngsec.eu *.ngsec.eu certyfikatit.pl compendium.pl *.securityawareness.pl
Serial Number 28c03d990ef2f7b4cd6cdfbcf5e1dd36
Valid from Thu, 12 Sep 2024 09:58:28 UTC
Valid until Fri, 12 Sep 2025 09:58:27 UTC (expires in 14 days, 11 hours)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer Certum Domain Validation CA SHA2
AIA: http://repository.certum.pl/dvcasha2.cer
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL, OCSP
CRL: http://crl.certum.pl/dvcasha2.crl
OCSP: http://dvcasha2.ocsp-certum.com
Revocation status Good (not revoked)
CRL ERROR: IOException occurred
DNS CAA No (more info)
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 3 (4199 bytes)
Chain issues None
#2
Subject Certum Domain Validation CA SHA2
Fingerprint SHA256: 129fb5de501e24041cd14a81075fd1cde257408d4a353e636912e38bdda2d3fb
Pin SHA256: S4AbJNGvyS57nzJwv8sPMUML8VHSqH1vbiBftdPcErI=
Valid until Wed, 09 Jun 2027 10:46:39 UTC (expires in 1 year and 9 months)
Key RSA 2048 bits (e 65537)
Issuer Certum Trusted Network CA
Signature algorithm SHA256withRSA
#3
Subject Certum Trusted Network CA
Fingerprint SHA256: 949424dc2ccaab5e9e80d66e0e3f7deeb3201c607d4315ef4c6f2d93a917279d
Pin SHA256: qiYwp7YXsE0KKUureoyqpQFubb5gSDeoOoVxn6tmfrU=
Valid until Thu, 10 Jun 2027 10:46:39 UTC (expires in 1 year and 9 months)
Key RSA 2048 bits (e 65537)
Issuer Certum CA
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Trusted
1 Sent by server *.compendium.pl
Fingerprint SHA256: 44998c80d6ea18b7f1b29118a991b120cda0a3727e8e7439c84d180a1cdf8e1d
Pin SHA256: HXs/EW16UpUTkLya1ZqNdETC+ZENI1RaYX3BAIKljmg=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server Certum Domain Validation CA SHA2
Fingerprint SHA256: 129fb5de501e24041cd14a81075fd1cde257408d4a353e636912e38bdda2d3fb
Pin SHA256: S4AbJNGvyS57nzJwv8sPMUML8VHSqH1vbiBftdPcErI=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store Certum Trusted Network CA   Self-signed
Fingerprint SHA256: 5c58468d55f58e497e743982d2b50010b6d165374acf83a7d4a32db768c4408e
Pin SHA256: qiYwp7YXsE0KKUureoyqpQFubb5gSDeoOoVxn6tmfrU=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #2: Not trusted (path does not chain to a trusted anchor)
1 Sent by server *.compendium.pl
Fingerprint SHA256: 44998c80d6ea18b7f1b29118a991b120cda0a3727e8e7439c84d180a1cdf8e1d
Pin SHA256: HXs/EW16UpUTkLya1ZqNdETC+ZENI1RaYX3BAIKljmg=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server Certum Domain Validation CA SHA2
Fingerprint SHA256: 129fb5de501e24041cd14a81075fd1cde257408d4a353e636912e38bdda2d3fb
Pin SHA256: S4AbJNGvyS57nzJwv8sPMUML8VHSqH1vbiBftdPcErI=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 Sent by server Certum Trusted Network CA
Fingerprint SHA256: 949424dc2ccaab5e9e80d66e0e3f7deeb3201c607d4315ef4c6f2d93a917279d
Pin SHA256: qiYwp7YXsE0KKUureoyqpQFubb5gSDeoOoVxn6tmfrU=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
4 Extra download
  Not in trust store
Certum CA   Self-signed
Fingerprint SHA256: d8e0febc1db2e38d00940f37d27d41344d993e734b99d5656d9778d4d8143624
Pin SHA256: lzasOyXRbEWkVBipZFeBVkgKjMQ0VB3cXdWSMyKYaN4=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server *.compendium.pl
Fingerprint SHA256: 44998c80d6ea18b7f1b29118a991b120cda0a3727e8e7439c84d180a1cdf8e1d
Pin SHA256: HXs/EW16UpUTkLya1ZqNdETC+ZENI1RaYX3BAIKljmg=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server Certum Domain Validation CA SHA2
Fingerprint SHA256: 129fb5de501e24041cd14a81075fd1cde257408d4a353e636912e38bdda2d3fb
Pin SHA256: S4AbJNGvyS57nzJwv8sPMUML8VHSqH1vbiBftdPcErI=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store Certum Trusted Network CA   Self-signed
Fingerprint SHA256: 5c58468d55f58e497e743982d2b50010b6d165374acf83a7d4a32db768c4408e
Pin SHA256: qiYwp7YXsE0KKUureoyqpQFubb5gSDeoOoVxn6tmfrU=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #2: Trusted
1 Sent by server *.compendium.pl
Fingerprint SHA256: 44998c80d6ea18b7f1b29118a991b120cda0a3727e8e7439c84d180a1cdf8e1d
Pin SHA256: HXs/EW16UpUTkLya1ZqNdETC+ZENI1RaYX3BAIKljmg=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server Certum Domain Validation CA SHA2
Fingerprint SHA256: 129fb5de501e24041cd14a81075fd1cde257408d4a353e636912e38bdda2d3fb
Pin SHA256: S4AbJNGvyS57nzJwv8sPMUML8VHSqH1vbiBftdPcErI=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 Sent by server Certum Trusted Network CA
Fingerprint SHA256: 949424dc2ccaab5e9e80d66e0e3f7deeb3201c607d4315ef4c6f2d93a917279d
Pin SHA256: qiYwp7YXsE0KKUureoyqpQFubb5gSDeoOoVxn6tmfrU=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
4 In trust store Certum CA   Self-signed
Fingerprint SHA256: d8e0febc1db2e38d00940f37d27d41344d993e734b99d5656d9778d4d8143624
Pin SHA256: lzasOyXRbEWkVBipZFeBVkgKjMQ0VB3cXdWSMyKYaN4=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server *.compendium.pl
Fingerprint SHA256: 44998c80d6ea18b7f1b29118a991b120cda0a3727e8e7439c84d180a1cdf8e1d
Pin SHA256: HXs/EW16UpUTkLya1ZqNdETC+ZENI1RaYX3BAIKljmg=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server Certum Domain Validation CA SHA2
Fingerprint SHA256: 129fb5de501e24041cd14a81075fd1cde257408d4a353e636912e38bdda2d3fb
Pin SHA256: S4AbJNGvyS57nzJwv8sPMUML8VHSqH1vbiBftdPcErI=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store Certum Trusted Network CA   Self-signed
Fingerprint SHA256: 5c58468d55f58e497e743982d2b50010b6d165374acf83a7d4a32db768c4408e
Pin SHA256: qiYwp7YXsE0KKUureoyqpQFubb5gSDeoOoVxn6tmfrU=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #2: Not trusted (path does not chain to a trusted anchor)
1 Sent by server *.compendium.pl
Fingerprint SHA256: 44998c80d6ea18b7f1b29118a991b120cda0a3727e8e7439c84d180a1cdf8e1d
Pin SHA256: HXs/EW16UpUTkLya1ZqNdETC+ZENI1RaYX3BAIKljmg=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server Certum Domain Validation CA SHA2
Fingerprint SHA256: 129fb5de501e24041cd14a81075fd1cde257408d4a353e636912e38bdda2d3fb
Pin SHA256: S4AbJNGvyS57nzJwv8sPMUML8VHSqH1vbiBftdPcErI=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 Sent by server Certum Trusted Network CA
Fingerprint SHA256: 949424dc2ccaab5e9e80d66e0e3f7deeb3201c607d4315ef4c6f2d93a917279d
Pin SHA256: qiYwp7YXsE0KKUureoyqpQFubb5gSDeoOoVxn6tmfrU=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
4 Extra download
  Not in trust store
Certum CA   Self-signed
Fingerprint SHA256: d8e0febc1db2e38d00940f37d27d41344d993e734b99d5656d9778d4d8143624
Pin SHA256: lzasOyXRbEWkVBipZFeBVkgKjMQ0VB3cXdWSMyKYaN4=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server *.compendium.pl
Fingerprint SHA256: 44998c80d6ea18b7f1b29118a991b120cda0a3727e8e7439c84d180a1cdf8e1d
Pin SHA256: HXs/EW16UpUTkLya1ZqNdETC+ZENI1RaYX3BAIKljmg=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server Certum Domain Validation CA SHA2
Fingerprint SHA256: 129fb5de501e24041cd14a81075fd1cde257408d4a353e636912e38bdda2d3fb
Pin SHA256: S4AbJNGvyS57nzJwv8sPMUML8VHSqH1vbiBftdPcErI=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store Certum Trusted Network CA   Self-signed
Fingerprint SHA256: 5c58468d55f58e497e743982d2b50010b6d165374acf83a7d4a32db768c4408e
Pin SHA256: qiYwp7YXsE0KKUureoyqpQFubb5gSDeoOoVxn6tmfrU=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #2: Trusted
1 Sent by server *.compendium.pl
Fingerprint SHA256: 44998c80d6ea18b7f1b29118a991b120cda0a3727e8e7439c84d180a1cdf8e1d
Pin SHA256: HXs/EW16UpUTkLya1ZqNdETC+ZENI1RaYX3BAIKljmg=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server Certum Domain Validation CA SHA2
Fingerprint SHA256: 129fb5de501e24041cd14a81075fd1cde257408d4a353e636912e38bdda2d3fb
Pin SHA256: S4AbJNGvyS57nzJwv8sPMUML8VHSqH1vbiBftdPcErI=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 Sent by server Certum Trusted Network CA
Fingerprint SHA256: 949424dc2ccaab5e9e80d66e0e3f7deeb3201c607d4315ef4c6f2d93a917279d
Pin SHA256: qiYwp7YXsE0KKUureoyqpQFubb5gSDeoOoVxn6tmfrU=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
4 In trust store Certum CA   Self-signed
Fingerprint SHA256: d8e0febc1db2e38d00940f37d27d41344d993e734b99d5656d9778d4d8143624
Pin SHA256: lzasOyXRbEWkVBipZFeBVkgKjMQ0VB3cXdWSMyKYaN4=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server *.compendium.pl
Fingerprint SHA256: 44998c80d6ea18b7f1b29118a991b120cda0a3727e8e7439c84d180a1cdf8e1d
Pin SHA256: HXs/EW16UpUTkLya1ZqNdETC+ZENI1RaYX3BAIKljmg=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server Certum Domain Validation CA SHA2
Fingerprint SHA256: 129fb5de501e24041cd14a81075fd1cde257408d4a353e636912e38bdda2d3fb
Pin SHA256: S4AbJNGvyS57nzJwv8sPMUML8VHSqH1vbiBftdPcErI=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store Certum Trusted Network CA   Self-signed
Fingerprint SHA256: 5c58468d55f58e497e743982d2b50010b6d165374acf83a7d4a32db768c4408e
Pin SHA256: qiYwp7YXsE0KKUureoyqpQFubb5gSDeoOoVxn6tmfrU=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #2: Trusted
1 Sent by server *.compendium.pl
Fingerprint SHA256: 44998c80d6ea18b7f1b29118a991b120cda0a3727e8e7439c84d180a1cdf8e1d
Pin SHA256: HXs/EW16UpUTkLya1ZqNdETC+ZENI1RaYX3BAIKljmg=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server Certum Domain Validation CA SHA2
Fingerprint SHA256: 129fb5de501e24041cd14a81075fd1cde257408d4a353e636912e38bdda2d3fb
Pin SHA256: S4AbJNGvyS57nzJwv8sPMUML8VHSqH1vbiBftdPcErI=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 Sent by server Certum Trusted Network CA
Fingerprint SHA256: 949424dc2ccaab5e9e80d66e0e3f7deeb3201c607d4315ef4c6f2d93a917279d
Pin SHA256: qiYwp7YXsE0KKUureoyqpQFubb5gSDeoOoVxn6tmfrU=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
4 In trust store Certum CA   Self-signed
Fingerprint SHA256: d8e0febc1db2e38d00940f37d27d41344d993e734b99d5656d9778d4d8143624
Pin SHA256: lzasOyXRbEWkVBipZFeBVkgKjMQ0VB3cXdWSMyKYaN4=

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

Click here to expand

Certificate #2: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject TRAEFIK DEFAULT CERT
Fingerprint SHA256: 7ac434fb6e97eb7dbed806e603d78fddd248635656e5c734ebc97afb75492f2c
Pin SHA256: uQ/hPKVEuGXo1J63CpmwJsK6gMyAHq3eaUoCbx8ScYg=
Common names TRAEFIK DEFAULT CERT
Alternative names 8e559f996bd49eecc9051f0f7630b6bd.b31330ec906470b90613ddd88973531f.traefik.default   MISMATCH
Serial Number 00f8a57e79bf4aab0ddcae2cb1289bd332
Valid from Thu, 21 Aug 2025 19:17:28 UTC
Valid until Fri, 21 Aug 2026 19:17:28 UTC (expires in 11 months and 23 days)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer TRAEFIK DEFAULT CERT   Self-signed
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 1 (866 bytes)
Chain issues None


Certification Paths
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server
  Not in trust store
TRAEFIK DEFAULT CERT   Self-signed
Fingerprint SHA256: 7ac434fb6e97eb7dbed806e603d78fddd248635656e5c734ebc97afb75492f2c
Pin SHA256: uQ/hPKVEuGXo1J63CpmwJsK6gMyAHq3eaUoCbx8ScYg=

RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server
  Not in trust store
TRAEFIK DEFAULT CERT   Self-signed
Fingerprint SHA256: 7ac434fb6e97eb7dbed806e603d78fddd248635656e5c734ebc97afb75492f2c
Pin SHA256: uQ/hPKVEuGXo1J63CpmwJsK6gMyAHq3eaUoCbx8ScYg=

RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server
  Not in trust store
TRAEFIK DEFAULT CERT   Self-signed
Fingerprint SHA256: 7ac434fb6e97eb7dbed806e603d78fddd248635656e5c734ebc97afb75492f2c
Pin SHA256: uQ/hPKVEuGXo1J63CpmwJsK6gMyAHq3eaUoCbx8ScYg=

RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server
  Not in trust store
TRAEFIK DEFAULT CERT   Self-signed
Fingerprint SHA256: 7ac434fb6e97eb7dbed806e603d78fddd248635656e5c734ebc97afb75492f2c
Pin SHA256: uQ/hPKVEuGXo1J63CpmwJsK6gMyAHq3eaUoCbx8ScYg=

RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server
  Not in trust store
TRAEFIK DEFAULT CERT   Self-signed
Fingerprint SHA256: 7ac434fb6e97eb7dbed806e603d78fddd248635656e5c734ebc97afb75492f2c
Pin SHA256: uQ/hPKVEuGXo1J63CpmwJsK6gMyAHq3eaUoCbx8ScYg=

RSA 2048 bits (e 65537) / SHA256withRSA

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
(*) Experimental: Server negotiated using No-SNI


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_AES_256_GCM_SHA384 (0x1302)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
TLS_CHACHA20_POLY1305_SHA256 (0x1303)   ECDH x25519 (eq. 3072 bits RSA)   FS 256P


Handshake Simulation
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
Chrome 69 / Win 7  R Server sent fatal alert: protocol_version
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 62 / Win 7  R Server sent fatal alert: protocol_version
Firefox 73 / Win 10  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  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 1.1.0k  R Server sent fatal alert: protocol_version
OpenSSL 1.1.1c  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  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
# 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 No
Strict Transport Security (HSTS) No
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://www.compendium.pl/  (HTTP/1.1 200 OK)
1
Alt-Svc h3=":443"; ma=2592000
Cache-Control no-cache
Cache-Control post-check=0, pre-check=0
Content-Type text/html; charset=UTF-8
Date Thu, 28 Aug 2025 17:00:53 GMT
Expires Mon, 26 Jul 1997 05:00:00 GMT
Pragma no-cache
Server Apache/2.4.10 (Debian)
Set-Cookie PHPSESSID=fitaa9fkegr187igq2flkugan2; path=/
Vary Accept-Encoding
Connection close
Transfer-Encoding chunked


Miscellaneous
Test date Thu, 28 Aug 2025 17:00:44 UTC
Test duration 23.55 seconds
HTTP status code 200
HTTP server signature Apache/2.4.10 (Debian)
Server hostname -


SSL Report v2.4.1