SSL Report: www.si-consulting.pl (2.57.138.211)
Assessed on:  Wed, 05 Nov 2025 07:40:14 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 *.si-consulting.pl
Fingerprint SHA256: d7da552427b53f6245ecc91269f649feec361f8f6957fbce0222d246f11efdca
Pin SHA256: 9V3EEVaRStxWBCB27Fj6eC8sJFKVvP8PEVivaNB57o0=
Common names *.si-consulting.pl
Alternative names *.si-consulting.pl si-consulting.pl
Serial Number 306e8ccef16c97ee70541d9888bc61fb
Valid from Thu, 04 Sep 2025 08:57:08 UTC
Valid until Fri, 04 Sep 2026 08:57:07 UTC (expires in 9 months and 29 days)
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 2 (2891 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 7 months)
Key RSA 2048 bits (e 65537)
Issuer Certum Trusted Network CA
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Trusted
1 Sent by server *.si-consulting.pl
Fingerprint SHA256: d7da552427b53f6245ecc91269f649feec361f8f6957fbce0222d246f11efdca
Pin SHA256: 9V3EEVaRStxWBCB27Fj6eC8sJFKVvP8PEVivaNB57o0=

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 #1: Trusted
1 Sent by server *.si-consulting.pl
Fingerprint SHA256: d7da552427b53f6245ecc91269f649feec361f8f6957fbce0222d246f11efdca
Pin SHA256: 9V3EEVaRStxWBCB27Fj6eC8sJFKVvP8PEVivaNB57o0=

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 #1: Trusted
1 Sent by server *.si-consulting.pl
Fingerprint SHA256: d7da552427b53f6245ecc91269f649feec361f8f6957fbce0222d246f11efdca
Pin SHA256: 9V3EEVaRStxWBCB27Fj6eC8sJFKVvP8PEVivaNB57o0=

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 #1: Trusted
1 Sent by server *.si-consulting.pl
Fingerprint SHA256: d7da552427b53f6245ecc91269f649feec361f8f6957fbce0222d246f11efdca
Pin SHA256: 9V3EEVaRStxWBCB27Fj6eC8sJFKVvP8PEVivaNB57o0=

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 #1: Trusted
1 Sent by server *.si-consulting.pl
Fingerprint SHA256: d7da552427b53f6245ecc91269f649feec361f8f6957fbce0222d246f11efdca
Pin SHA256: 9V3EEVaRStxWBCB27Fj6eC8sJFKVvP8PEVivaNB57o0=

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

Click here to expand

Certificate #2: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject *.zenbox.pl
Fingerprint SHA256: ef795121801d3aee965cba4b4c3954efd31101b930e65b24a4004a4784341587
Pin SHA256: KHE3V0N8t4equ85C4C3K3RSbU62hNO16KXZfPGMGCT0=
Common names *.zenbox.pl
Alternative names *.zenbox.pl zenbox.pl   MISMATCH
Serial Number 3ad915ea222f314befba36c2f8d59a4f
Valid from Wed, 20 Aug 2025 10:25:17 UTC
Valid until Thu, 20 Aug 2026 10:25:16 UTC (expires in 9 months and 14 days)
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
Trusted No   NOT TRUSTED
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 3 (3829 bytes)
Chain issues Contains anchor
#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 7 months)
Key RSA 2048 bits (e 65537)
Issuer Certum Trusted Network CA
Signature algorithm SHA256withRSA
#3
Subject Certum Trusted Network CA   In trust store
Fingerprint SHA256: 5c58468d55f58e497e743982d2b50010b6d165374acf83a7d4a32db768c4408e
Pin SHA256: qiYwp7YXsE0KKUureoyqpQFubb5gSDeoOoVxn6tmfrU=
Valid until Mon, 31 Dec 2029 12:07:37 UTC (expires in 4 years and 1 month)
Key RSA 2048 bits (e 65537)
Issuer Certum Trusted Network CA   Self-signed
Signature algorithm SHA1withRSA   Weak, but no impact on root certificate


Certification Paths
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: ef795121801d3aee965cba4b4c3954efd31101b930e65b24a4004a4784341587])
1 Sent by server *.zenbox.pl
Fingerprint SHA256: ef795121801d3aee965cba4b4c3954efd31101b930e65b24a4004a4784341587
Pin SHA256: KHE3V0N8t4equ85C4C3K3RSbU62hNO16KXZfPGMGCT0=

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
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 #1: Not trusted (invalid certificate [Fingerprint SHA256: ef795121801d3aee965cba4b4c3954efd31101b930e65b24a4004a4784341587])
1 Sent by server *.zenbox.pl
Fingerprint SHA256: ef795121801d3aee965cba4b4c3954efd31101b930e65b24a4004a4784341587
Pin SHA256: KHE3V0N8t4equ85C4C3K3RSbU62hNO16KXZfPGMGCT0=

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
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 #1: Not trusted (invalid certificate [Fingerprint SHA256: ef795121801d3aee965cba4b4c3954efd31101b930e65b24a4004a4784341587])
1 Sent by server *.zenbox.pl
Fingerprint SHA256: ef795121801d3aee965cba4b4c3954efd31101b930e65b24a4004a4784341587
Pin SHA256: KHE3V0N8t4equ85C4C3K3RSbU62hNO16KXZfPGMGCT0=

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
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 #1: Not trusted (invalid certificate [Fingerprint SHA256: ef795121801d3aee965cba4b4c3954efd31101b930e65b24a4004a4784341587])
1 Sent by server *.zenbox.pl
Fingerprint SHA256: ef795121801d3aee965cba4b4c3954efd31101b930e65b24a4004a4784341587
Pin SHA256: KHE3V0N8t4equ85C4C3K3RSbU62hNO16KXZfPGMGCT0=

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
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 #1: Not trusted (invalid certificate [Fingerprint SHA256: ef795121801d3aee965cba4b4c3954efd31101b930e65b24a4004a4784341587])
1 Sent by server *.zenbox.pl
Fingerprint SHA256: ef795121801d3aee965cba4b4c3954efd31101b930e65b24a4004a4784341587
Pin SHA256: KHE3V0N8t4equ85C4C3K3RSbU62hNO16KXZfPGMGCT0=

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
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

Click here to expand

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
(*) Experimental: Server negotiated using No-SNI


Cipher Suites
# TLS 1.3 (server has no preference)
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 256
# TLS 1.2 (suites in server-preferred order)
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_CHACHA20_POLY1305_SHA256 (0xcca8)   ECDH x25519 (eq. 3072 bits RSA)   FS 256


Handshake Simulation
Android 4.4.2 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 5.0.0 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 6.0 RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 7.0 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Android 8.0 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_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 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_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 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_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 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 47 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 49 / XP SP3 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 62 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_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 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
IE 11 / Win 7  R Server sent fatal alert: handshake_failure
IE 11 / Win 8.1  R Server sent fatal alert: handshake_failure
IE 11 / Win Phone 8.1  R Server sent fatal alert: handshake_failure
IE 11 / Win Phone 8.1 Update  R Server sent fatal alert: handshake_failure
IE 11 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Edge 15 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Edge 16 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Edge 18 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Edge 13 / Win Phone 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Java 8u161 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_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 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.0.2s  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.1.0k  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
OpenSSL 1.1.1c  R -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
Safari 6 / iOS 6.0.1 Server sent fatal alert: handshake_failure
Safari 7 / iOS 7.1  R Server sent fatal alert: handshake_failure
Safari 7 / OS X 10.9  R Server sent fatal alert: handshake_failure
Safari 8 / iOS 8.4  R Server sent fatal alert: handshake_failure
Safari 8 / OS X 10.10  R Server sent fatal alert: handshake_failure
Safari 9 / iOS 9  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 9 / OS X 10.11  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 10 / iOS 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 10 / OS X 10.12  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_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 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Yahoo Slurp Jan 2015 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
YandexBot Jan 2015 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_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
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)  
GOLDENDOODLE No (more info)  
OpenSSL 0-Length No (more info)  
Sleeping POODLE No (more info)  
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) Yes
Session resumption (tickets) Yes
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)
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, secp384r1 (server preferred order)
SSL 2 handshake compatibility No
0-RTT enabled No


HTTP Requests
1 https://www.si-consulting.pl/  (HTTP/1.1 200 OK)
1
Connection close
Content-Type text/html; charset=UTF-8
Cache-Control max-age=180, public
X-Drupal-Dynamic-Cache MISS
Content-language pl
X-Content-Type-Options nosniff
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X-Drupal-Cache-Tags block_content:11 block_content:14 block_content:17 block_content:21 block_content:23 block_content:24 block_content:28 block_content:29 block_content:30 block_content:31 block_content:32 block_content:34 block_content:5 block_content:6 block_content:9 block_content_view block_view config:block.block.bootstrap_sic_accordionsiksef config:block.block.bootstrap_sic_branding config:block.block.bootstrap_sic_breadcrumbs config:block.block.bootstrap_sic_centrumeksperckiesamobszaryirozwiazania config:block.block.bootstrap_sic_centrumeksperckiesamprodukty config:block.block.bootstrap_sic_centrumeksperckiesap config:block.block.bootstrap_sic_centrumeksperckiesapuslugi config:block.block.bootstrap_sic_content config:block.block.bootstrap_sic_cookiedeclarationblock config:block.block.bootstrap_sic_dolaczdonas2 config:block.block.bootstrap_sic_help config:block.block.bootstrap_sic_informacja config:block.block.bootstrap_sic_kompleksowewsparcieit config:block.block.bootstrap_sic_kontakt config:block.block.bootstrap_sic_kontaktkariera config:block.block.bootstrap_sic_kontaktoferta config:block.block.bootstrap_sic_local_actions config:block.block.bootstrap_sic_local_tasks config:block.block.bootstrap_sic_logo_stopka_link config:block.block.bootstrap_sic_lupka config:block.block.bootstrap_sic_main_menu config:block.block.bootstrap_sic_menuoffer config:block.block.bootstrap_sic_messages config:block.block.bootstrap_sic_motto config:block.block.bootstrap_sic_napiszdonas config:block.block.bootstrap_sic_oferta config:block.block.bootstrap_sic_ofertauslugibottom config:block.block.bootstrap_sic_onas config:block.block.bootstrap_sic_page_title config:block.block.bootstrap_sic_podmotto config:block.block.bootstrap_sic_powitanie config:block.block.bootstrap_sic_programowanieprodukty config:block.block.bootstrap_sic_programowanierozwiazaniadedykowane config:block.block.bootstrap_sic_programowanieuslugi config:block.block.bootstrap_sic_projektowanie config:block.block.bootstrap_sic_przelacznikwersjijezykowej config:block.block.bootstrap_sic_rodokomentarz config:block.block.bootstrap_sic_sap config:block.block.bootstrap_sic_sapgoldpartnermenu config:block.block.bootstrap_sic_social config:block.block.bootstrap_sic_stopka config:block.block.bootstrap_sic_testbigmenu config:block.block.bootstrap_sic_testbigmenu_2 config:block.block.bootstrap_sic_testbigmenu_3 config:block.block.bootstrap_sic_testultima config:block.block.bootstrap_sic_testultima_2 config:block.block.bootstrap_sic_testultima_3 config:block.block.bootstrap_sic_udostepnionyformularzszukajpage_1 config:block.block.bootstrap_sic_ultimenuoferta config:block.block.bootstrap_sic_uslugiitobszaryirozwiazania config:block.block.bootstrap_sic_uslugiitprodukty config:block.block.bootstrap_sic_uslugiituslugi config:block.block.bootstrap_sic_uwaganowynumer config:block.block.bootstrap_sic_views_block__aktualnosci_block_1 config:block.block.bootstrap_sic_views_block__aktualnosci_block_2 config:block.block.bootstrap_sic_views_block__aktualnosci_block_3 config:block.block.bootstrap_sic_views_block__aktualnosci_block_6 config:block.block.bootstrap_sic_views_block__benefity_block_1 config:block.block.bootstrap_sic_views_block__certyfikat_block_1 config:block.block.bootstrap_sic_views_block__clientlist_block_1 config:block.block.bootstrap_sic_views_block__kategorie_glowne_block_1 config:block.block.bootstrap_sic_views_block__licznik_block_1 config:block.block.bootstrap_sic_views_block__licznik_block_2 config:block.block.bootstrap_sic_views_block__licznik_block_3 config:block.block.bootstrap_sic_views_block__licznik_block_4 config:block.block.bootstrap_sic_views_block__licznik_block_5 config:block.block.bootstrap_sic_views_block__offer_taxonomy_term_zobacz_takze_block_1 config:block.block.bootstrap_sic_views_block__opinie_lista_block_1 config:block.block.bootstrap_sic_views_block__partnerzy_block_1 config:block.block.bootstrap_sic_views_block__partnerzy_block_2 config:block.block.bootstrap_sic_views_block__partnerzy_block_3 config:block.block.bootstrap_sic_views_block__partnerzy_block_4 config:block.block.bootstrap_sic_views_block__produkty__block_1 config:block.block.kochamysap config:block.block.kompleksowewsparcieit_2 config:block.block.kontakttopbutton config:block.block.programowanieprodukty_2 config:block.block.programowanierozwiazaniadedykowane_2 config:block.block.programowanieuslugi_2 config:block.block.projektowanie_2 config:block.block.saptab config:block.block.trendy config:block.block.uslugiitobszaryirozwiazania_2 config:block.block.views_block__aktualnosci_block_7 config:block.block.views_block__aktualnosci_block_8 config:block.block.views_block__opinie_lista_block_2 config:block.block.views_block__produkty__block_2 config:block_list config:configurable_language_list config:core.entity_view_display.block_content.3_kolumny.default config:core.entity_view_display.block_content.3_kolumny_kariera.default config:core.entity_view_display.block_content.basic.default config:core.entity_view_display.block_content.foto_i_tekst.default config:core.entity_view_display.media.image.default config:core.entity_view_display.media.image.full config:field.storage.node.body config:field.storage.node.field_certyfikat config:field.storage.node.field_news_kategoria config:field.storage.node.field_news_media_top config:field.storage.node.field_news_photo config:field.storage.node.field_offer_icon config:field.storage.node.field_opinie_imie_i_nazwisko config:field.storage.node.field_opinion_photo config:field.storage.node.field_opinion_position config:field.storage.node.field_partner_logo config:field.storage.node.field_prod_photo config:field.storage.node.field_zdjecie_do_widoku_media config:filter.format.basic_html config:filter.format.full_html config:filter.format.restricted_html config:google_tag.container.G-RS0KHKVG52.65e9dea7068085.10888351 config:google_tag_container_list config:image.style.certyfikat config:image.style.kwadrat_320 config:image.style.news_list config:image.style.news_si_new_list config:image.style.partner_mini config:image.style.produkty_start config:system.menu.centrum-eksperckie-sam---pr config:system.menu.centrum-eksperckie-sam---us config:system.menu.centrum-eksperckie-sap config:system.menu.main config:system.menu.o-nas config:system.menu.oferta-uslugi-bottom config:system.menu.uslugi-it---obszary-i-rozwi config:system.menu.uslugi-it---produkty config:system.menu.uslugi-it---uslugi config:system.site config:ultimenu.oferta config:user.role.anonymous config:views.view.aktualnosci config:views.view.certyfikat config:views.view.opinie_lista config:views.view.partnerzy config:views.view.produkty_ cookiebot:cbid cookiebot:iab_enabled file:1398 file:1434 file:1460 file:181 file:184 file:216 file:217 file:2194 file:275 file:32437 file:32641 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Expires Sun, 19 Nov 1978 05:00:00 GMT
Last-Modified Wed, 05 Nov 2025 07:39:09 GMT
ETag "1762328349"
Vary Cookie,User-Agent
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Content-Length 69509
Date Wed, 05 Nov 2025 07:39:11 GMT
Server LiteSpeed
onsuccess unset X-Content-Type-Options
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Miscellaneous
Test date Wed, 05 Nov 2025 07:38:57 UTC
Test duration 77.235 seconds
HTTP status code 200
HTTP server signature LiteSpeed
Server hostname s45.zenbox.pl


SSL Report v2.4.1