SSL Report: helpdesk.cpi.cz (80.95.105.179)
Assessed on:  Thu, 22 Jan 2026 02:50:46 UTC | Clear cache

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Summary
Overall Rating
A
0
20
40
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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.  MORE INFO »
HTTP Strict Transport Security (HSTS) with long duration deployed on this server.  MORE INFO »
Certificate #1: EC 256 bits (SHA256withECDSA)
Server Key and Certificate #1
Subject *.cpi.cz
Fingerprint SHA256: b13f92d440bbf66fad7b7357b87843aed8ee069009afcb51bc4b1045766392c4
Pin SHA256: 36YmATAJMDep++xlIRbBqUzajyYAtAnqi9X8w+XKQDs=
Common names *.cpi.cz
Alternative names *.cpi.cz cpi.cz
Serial Number 614e75742f4314fcd59ae415ae306311
Valid from Wed, 27 Aug 2025 00:00:00 UTC
Valid until Thu, 27 Aug 2026 23:59:59 UTC (expires in 7 months and 5 days)
Key EC 256 bits
Weak key (Debian) No
Issuer Alpiro ECC DV SSL CA 2
AIA: http://crt.sectigo.com/AlpiroECCDVSSLCA2.crt
Signature algorithm SHA256withECDSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information OCSP
OCSP: http://ocsp.sectigo.com
Revocation status Good (not revoked)
DNS CAA No (more info)
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 2 (1849 bytes)
Chain issues None
#2
Subject Alpiro ECC DV SSL CA 2
Fingerprint SHA256: f7834199959672b70622b6019b3d42a46a5abcc00b59a770720a818809f182f3
Pin SHA256: 35OGu8W/ydR1QYMMAqgraZ0PZUDnKZvraIu1mN789+c=
Valid until Mon, 26 Mar 2035 23:59:59 UTC (expires in 9 years and 2 months)
Key EC 256 bits
Issuer Sectigo Public Server Authentication Root E46
Signature algorithm SHA384withECDSA


Certification Paths
Path #1: Trusted
1 Sent by server *.cpi.cz
Fingerprint SHA256: b13f92d440bbf66fad7b7357b87843aed8ee069009afcb51bc4b1045766392c4
Pin SHA256: 36YmATAJMDep++xlIRbBqUzajyYAtAnqi9X8w+XKQDs=

EC 256 bits / SHA256withECDSA
2 Sent by server Alpiro ECC DV SSL CA 2
Fingerprint SHA256: f7834199959672b70622b6019b3d42a46a5abcc00b59a770720a818809f182f3
Pin SHA256: 35OGu8W/ydR1QYMMAqgraZ0PZUDnKZvraIu1mN789+c=

EC 256 bits / SHA384withECDSA
3 In trust store Sectigo Public Server Authentication Root E46   Self-signed
Fingerprint SHA256: c90f26f0fb1b4018b22227519b5ca2b53e2ca5b3be5cf18efe1bef47380c5383
Pin SHA256: sLVjNUaFYfW7n6EtgBeEpjOlcnBdNPMrZDRF36iwBdE=

EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server *.cpi.cz
Fingerprint SHA256: b13f92d440bbf66fad7b7357b87843aed8ee069009afcb51bc4b1045766392c4
Pin SHA256: 36YmATAJMDep++xlIRbBqUzajyYAtAnqi9X8w+XKQDs=

EC 256 bits / SHA256withECDSA
2 Sent by server Alpiro ECC DV SSL CA 2
Fingerprint SHA256: f7834199959672b70622b6019b3d42a46a5abcc00b59a770720a818809f182f3
Pin SHA256: 35OGu8W/ydR1QYMMAqgraZ0PZUDnKZvraIu1mN789+c=

EC 256 bits / SHA384withECDSA
3 Extra download Sectigo Public Server Authentication Root E46
Fingerprint SHA256: ea6b89ed6907a209ff9188676fb164e7aced894b8996dfbe5ce5bbcc22de4ddd
Pin SHA256: sLVjNUaFYfW7n6EtgBeEpjOlcnBdNPMrZDRF36iwBdE=

EC 384 bits / SHA384withECDSA
4 In trust store USERTrust ECC Certification Authority   Self-signed
Fingerprint SHA256: 4ff460d54b9c86dabfbcfc5712e0400d2bed3fbc4d4fbdaa86e06adcd2a9ad7a
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withECDSA
Path #3: Trusted
1 Sent by server *.cpi.cz
Fingerprint SHA256: b13f92d440bbf66fad7b7357b87843aed8ee069009afcb51bc4b1045766392c4
Pin SHA256: 36YmATAJMDep++xlIRbBqUzajyYAtAnqi9X8w+XKQDs=

EC 256 bits / SHA256withECDSA
2 Sent by server Alpiro ECC DV SSL CA 2
Fingerprint SHA256: f7834199959672b70622b6019b3d42a46a5abcc00b59a770720a818809f182f3
Pin SHA256: 35OGu8W/ydR1QYMMAqgraZ0PZUDnKZvraIu1mN789+c=

EC 256 bits / SHA384withECDSA
3 Extra download Sectigo Public Server Authentication Root E46
Fingerprint SHA256: 6802701f0fd0960ff2b51f39aaeb20a778d83261a959ad0d7ff0be54240f673d
Pin SHA256: sLVjNUaFYfW7n6EtgBeEpjOlcnBdNPMrZDRF36iwBdE=

EC 384 bits / SHA384withRSA
4 In trust store AAA Certificate Services   Self-signed
Fingerprint SHA256: d7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef4
Pin SHA256: vRU+17BDT2iGsXvOi76E7TQMcTLXAqj0+jGPdW7L1vM=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server *.cpi.cz
Fingerprint SHA256: b13f92d440bbf66fad7b7357b87843aed8ee069009afcb51bc4b1045766392c4
Pin SHA256: 36YmATAJMDep++xlIRbBqUzajyYAtAnqi9X8w+XKQDs=

EC 256 bits / SHA256withECDSA
2 Sent by server Alpiro ECC DV SSL CA 2
Fingerprint SHA256: f7834199959672b70622b6019b3d42a46a5abcc00b59a770720a818809f182f3
Pin SHA256: 35OGu8W/ydR1QYMMAqgraZ0PZUDnKZvraIu1mN789+c=

EC 256 bits / SHA384withECDSA
3 In trust store Sectigo Public Server Authentication Root E46   Self-signed
Fingerprint SHA256: c90f26f0fb1b4018b22227519b5ca2b53e2ca5b3be5cf18efe1bef47380c5383
Pin SHA256: sLVjNUaFYfW7n6EtgBeEpjOlcnBdNPMrZDRF36iwBdE=

EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server *.cpi.cz
Fingerprint SHA256: b13f92d440bbf66fad7b7357b87843aed8ee069009afcb51bc4b1045766392c4
Pin SHA256: 36YmATAJMDep++xlIRbBqUzajyYAtAnqi9X8w+XKQDs=

EC 256 bits / SHA256withECDSA
2 Sent by server Alpiro ECC DV SSL CA 2
Fingerprint SHA256: f7834199959672b70622b6019b3d42a46a5abcc00b59a770720a818809f182f3
Pin SHA256: 35OGu8W/ydR1QYMMAqgraZ0PZUDnKZvraIu1mN789+c=

EC 256 bits / SHA384withECDSA
3 Extra download Sectigo Public Server Authentication Root E46
Fingerprint SHA256: ea6b89ed6907a209ff9188676fb164e7aced894b8996dfbe5ce5bbcc22de4ddd
Pin SHA256: sLVjNUaFYfW7n6EtgBeEpjOlcnBdNPMrZDRF36iwBdE=

EC 384 bits / SHA384withECDSA
4 In trust store USERTrust ECC Certification Authority   Self-signed
Fingerprint SHA256: 4ff460d54b9c86dabfbcfc5712e0400d2bed3fbc4d4fbdaa86e06adcd2a9ad7a
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withECDSA
Path #3: Trusted
1 Sent by server *.cpi.cz
Fingerprint SHA256: b13f92d440bbf66fad7b7357b87843aed8ee069009afcb51bc4b1045766392c4
Pin SHA256: 36YmATAJMDep++xlIRbBqUzajyYAtAnqi9X8w+XKQDs=

EC 256 bits / SHA256withECDSA
2 Sent by server Alpiro ECC DV SSL CA 2
Fingerprint SHA256: f7834199959672b70622b6019b3d42a46a5abcc00b59a770720a818809f182f3
Pin SHA256: 35OGu8W/ydR1QYMMAqgraZ0PZUDnKZvraIu1mN789+c=

EC 256 bits / SHA384withECDSA
3 Extra download Sectigo Public Server Authentication Root E46
Fingerprint SHA256: 6802701f0fd0960ff2b51f39aaeb20a778d83261a959ad0d7ff0be54240f673d
Pin SHA256: sLVjNUaFYfW7n6EtgBeEpjOlcnBdNPMrZDRF36iwBdE=

EC 384 bits / SHA384withRSA
4 In trust store AAA Certificate Services   Self-signed
Fingerprint SHA256: d7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef4
Pin SHA256: vRU+17BDT2iGsXvOi76E7TQMcTLXAqj0+jGPdW7L1vM=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server *.cpi.cz
Fingerprint SHA256: b13f92d440bbf66fad7b7357b87843aed8ee069009afcb51bc4b1045766392c4
Pin SHA256: 36YmATAJMDep++xlIRbBqUzajyYAtAnqi9X8w+XKQDs=

EC 256 bits / SHA256withECDSA
2 Sent by server Alpiro ECC DV SSL CA 2
Fingerprint SHA256: f7834199959672b70622b6019b3d42a46a5abcc00b59a770720a818809f182f3
Pin SHA256: 35OGu8W/ydR1QYMMAqgraZ0PZUDnKZvraIu1mN789+c=

EC 256 bits / SHA384withECDSA
3 In trust store Sectigo Public Server Authentication Root E46   Self-signed
Fingerprint SHA256: c90f26f0fb1b4018b22227519b5ca2b53e2ca5b3be5cf18efe1bef47380c5383
Pin SHA256: sLVjNUaFYfW7n6EtgBeEpjOlcnBdNPMrZDRF36iwBdE=

EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server *.cpi.cz
Fingerprint SHA256: b13f92d440bbf66fad7b7357b87843aed8ee069009afcb51bc4b1045766392c4
Pin SHA256: 36YmATAJMDep++xlIRbBqUzajyYAtAnqi9X8w+XKQDs=

EC 256 bits / SHA256withECDSA
2 Sent by server Alpiro ECC DV SSL CA 2
Fingerprint SHA256: f7834199959672b70622b6019b3d42a46a5abcc00b59a770720a818809f182f3
Pin SHA256: 35OGu8W/ydR1QYMMAqgraZ0PZUDnKZvraIu1mN789+c=

EC 256 bits / SHA384withECDSA
3 Extra download Sectigo Public Server Authentication Root E46
Fingerprint SHA256: ea6b89ed6907a209ff9188676fb164e7aced894b8996dfbe5ce5bbcc22de4ddd
Pin SHA256: sLVjNUaFYfW7n6EtgBeEpjOlcnBdNPMrZDRF36iwBdE=

EC 384 bits / SHA384withECDSA
4 In trust store USERTrust ECC Certification Authority   Self-signed
Fingerprint SHA256: 4ff460d54b9c86dabfbcfc5712e0400d2bed3fbc4d4fbdaa86e06adcd2a9ad7a
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withECDSA
Path #3: Trusted
1 Sent by server *.cpi.cz
Fingerprint SHA256: b13f92d440bbf66fad7b7357b87843aed8ee069009afcb51bc4b1045766392c4
Pin SHA256: 36YmATAJMDep++xlIRbBqUzajyYAtAnqi9X8w+XKQDs=

EC 256 bits / SHA256withECDSA
2 Sent by server Alpiro ECC DV SSL CA 2
Fingerprint SHA256: f7834199959672b70622b6019b3d42a46a5abcc00b59a770720a818809f182f3
Pin SHA256: 35OGu8W/ydR1QYMMAqgraZ0PZUDnKZvraIu1mN789+c=

EC 256 bits / SHA384withECDSA
3 Extra download Sectigo Public Server Authentication Root E46
Fingerprint SHA256: 6802701f0fd0960ff2b51f39aaeb20a778d83261a959ad0d7ff0be54240f673d
Pin SHA256: sLVjNUaFYfW7n6EtgBeEpjOlcnBdNPMrZDRF36iwBdE=

EC 384 bits / SHA384withRSA
4 In trust store AAA Certificate Services   Self-signed
Fingerprint SHA256: d7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef4
Pin SHA256: vRU+17BDT2iGsXvOi76E7TQMcTLXAqj0+jGPdW7L1vM=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server *.cpi.cz
Fingerprint SHA256: b13f92d440bbf66fad7b7357b87843aed8ee069009afcb51bc4b1045766392c4
Pin SHA256: 36YmATAJMDep++xlIRbBqUzajyYAtAnqi9X8w+XKQDs=

EC 256 bits / SHA256withECDSA
2 Sent by server Alpiro ECC DV SSL CA 2
Fingerprint SHA256: f7834199959672b70622b6019b3d42a46a5abcc00b59a770720a818809f182f3
Pin SHA256: 35OGu8W/ydR1QYMMAqgraZ0PZUDnKZvraIu1mN789+c=

EC 256 bits / SHA384withECDSA
3 Extra download
  Not in trust store
Sectigo Public Server Authentication Root E46   Self-signed
Fingerprint SHA256: c90f26f0fb1b4018b22227519b5ca2b53e2ca5b3be5cf18efe1bef47380c5383
Pin SHA256: sLVjNUaFYfW7n6EtgBeEpjOlcnBdNPMrZDRF36iwBdE=

EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server *.cpi.cz
Fingerprint SHA256: b13f92d440bbf66fad7b7357b87843aed8ee069009afcb51bc4b1045766392c4
Pin SHA256: 36YmATAJMDep++xlIRbBqUzajyYAtAnqi9X8w+XKQDs=

EC 256 bits / SHA256withECDSA
2 Sent by server Alpiro ECC DV SSL CA 2
Fingerprint SHA256: f7834199959672b70622b6019b3d42a46a5abcc00b59a770720a818809f182f3
Pin SHA256: 35OGu8W/ydR1QYMMAqgraZ0PZUDnKZvraIu1mN789+c=

EC 256 bits / SHA384withECDSA
3 Extra download Sectigo Public Server Authentication Root E46
Fingerprint SHA256: ea6b89ed6907a209ff9188676fb164e7aced894b8996dfbe5ce5bbcc22de4ddd
Pin SHA256: sLVjNUaFYfW7n6EtgBeEpjOlcnBdNPMrZDRF36iwBdE=

EC 384 bits / SHA384withECDSA
4 In trust store USERTrust ECC Certification Authority   Self-signed
Fingerprint SHA256: 4ff460d54b9c86dabfbcfc5712e0400d2bed3fbc4d4fbdaa86e06adcd2a9ad7a
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withECDSA
Path #3: Trusted
1 Sent by server *.cpi.cz
Fingerprint SHA256: b13f92d440bbf66fad7b7357b87843aed8ee069009afcb51bc4b1045766392c4
Pin SHA256: 36YmATAJMDep++xlIRbBqUzajyYAtAnqi9X8w+XKQDs=

EC 256 bits / SHA256withECDSA
2 Sent by server Alpiro ECC DV SSL CA 2
Fingerprint SHA256: f7834199959672b70622b6019b3d42a46a5abcc00b59a770720a818809f182f3
Pin SHA256: 35OGu8W/ydR1QYMMAqgraZ0PZUDnKZvraIu1mN789+c=

EC 256 bits / SHA384withECDSA
3 Extra download Sectigo Public Server Authentication Root E46
Fingerprint SHA256: 6802701f0fd0960ff2b51f39aaeb20a778d83261a959ad0d7ff0be54240f673d
Pin SHA256: sLVjNUaFYfW7n6EtgBeEpjOlcnBdNPMrZDRF36iwBdE=

EC 384 bits / SHA384withRSA
4 In trust store AAA Certificate Services   Self-signed
Fingerprint SHA256: d7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef4
Pin SHA256: vRU+17BDT2iGsXvOi76E7TQMcTLXAqj0+jGPdW7L1vM=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server *.cpi.cz
Fingerprint SHA256: b13f92d440bbf66fad7b7357b87843aed8ee069009afcb51bc4b1045766392c4
Pin SHA256: 36YmATAJMDep++xlIRbBqUzajyYAtAnqi9X8w+XKQDs=

EC 256 bits / SHA256withECDSA
2 Sent by server Alpiro ECC DV SSL CA 2
Fingerprint SHA256: f7834199959672b70622b6019b3d42a46a5abcc00b59a770720a818809f182f3
Pin SHA256: 35OGu8W/ydR1QYMMAqgraZ0PZUDnKZvraIu1mN789+c=

EC 256 bits / SHA384withECDSA
3 In trust store Sectigo Public Server Authentication Root E46   Self-signed
Fingerprint SHA256: c90f26f0fb1b4018b22227519b5ca2b53e2ca5b3be5cf18efe1bef47380c5383
Pin SHA256: sLVjNUaFYfW7n6EtgBeEpjOlcnBdNPMrZDRF36iwBdE=

EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server *.cpi.cz
Fingerprint SHA256: b13f92d440bbf66fad7b7357b87843aed8ee069009afcb51bc4b1045766392c4
Pin SHA256: 36YmATAJMDep++xlIRbBqUzajyYAtAnqi9X8w+XKQDs=

EC 256 bits / SHA256withECDSA
2 Sent by server Alpiro ECC DV SSL CA 2
Fingerprint SHA256: f7834199959672b70622b6019b3d42a46a5abcc00b59a770720a818809f182f3
Pin SHA256: 35OGu8W/ydR1QYMMAqgraZ0PZUDnKZvraIu1mN789+c=

EC 256 bits / SHA384withECDSA
3 Extra download Sectigo Public Server Authentication Root E46
Fingerprint SHA256: ea6b89ed6907a209ff9188676fb164e7aced894b8996dfbe5ce5bbcc22de4ddd
Pin SHA256: sLVjNUaFYfW7n6EtgBeEpjOlcnBdNPMrZDRF36iwBdE=

EC 384 bits / SHA384withECDSA
4 In trust store USERTrust ECC Certification Authority   Self-signed
Fingerprint SHA256: 4ff460d54b9c86dabfbcfc5712e0400d2bed3fbc4d4fbdaa86e06adcd2a9ad7a
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withECDSA
Path #3: Trusted
1 Sent by server *.cpi.cz
Fingerprint SHA256: b13f92d440bbf66fad7b7357b87843aed8ee069009afcb51bc4b1045766392c4
Pin SHA256: 36YmATAJMDep++xlIRbBqUzajyYAtAnqi9X8w+XKQDs=

EC 256 bits / SHA256withECDSA
2 Sent by server Alpiro ECC DV SSL CA 2
Fingerprint SHA256: f7834199959672b70622b6019b3d42a46a5abcc00b59a770720a818809f182f3
Pin SHA256: 35OGu8W/ydR1QYMMAqgraZ0PZUDnKZvraIu1mN789+c=

EC 256 bits / SHA384withECDSA
3 Extra download Sectigo Public Server Authentication Root E46
Fingerprint SHA256: 6802701f0fd0960ff2b51f39aaeb20a778d83261a959ad0d7ff0be54240f673d
Pin SHA256: sLVjNUaFYfW7n6EtgBeEpjOlcnBdNPMrZDRF36iwBdE=

EC 384 bits / SHA384withRSA
4 In trust store AAA Certificate Services   Self-signed
Fingerprint SHA256: d7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef4
Pin SHA256: vRU+17BDT2iGsXvOi76E7TQMcTLXAqj0+jGPdW7L1vM=

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 No
TLS 1.1 No
TLS 1.0 No
SSL 3 No
SSL 2 No


Cipher Suites
# TLS 1.3 (we could not determine if the server has a preference)
TLS_AES_128_GCM_SHA256 (0x1301)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 128
TLS_CHACHA20_POLY1305_SHA256 (0x1303)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256


Handshake Simulation
Android 8.1 -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 9.0 -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 69 / Win 7  R Server sent fatal alert: handshake_failure
Chrome 70 / Win 10 -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 80 / Win 10  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 62 / Win 7  R Server sent fatal alert: handshake_failure
Firefox 73 / Win 10  R -   TLS 1.3 TLS_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 1.1.0k  R Server sent fatal alert: handshake_failure
OpenSSL 1.1.1c  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 12.1.2 / MacOS 10.14.6 Beta  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 12.1.1 / iOS 12.3.1  R -   TLS 1.3 TLS_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)
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   http/1.1
Session resumption (tickets) No
OCSP stapling No
Strict Transport Security (HSTS) Yes
max-age=157680000
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 secp256r1, secp384r1, secp521r1 (server preferred order)
SSL 2 handshake compatibility No
0-RTT enabled No


HTTP Requests
1 https://helpdesk.cpi.cz/  (HTTP/1.1 200 OK)
1
Strict-Transport-Security max-age=157680000
Content-Security-Policy default-src 'self'; script-src 'self' 'nonce-i9MOM3J0XcLOfKhMM/Mc3ARLO7z8aWo9NMQn1GQAS78='; connect-src 'self'; img-src 'self' data:; style-src 'self' 'unsafe-inline'; font-src 'self' data:; frame-src 'self'; child-src 'self' com.citrix.agmacepa://* citrixng://* com.citrix.nsgclient://* vmware-view:// nsgcepa://nsgcepa application://*; form-action https://login.microsoftonline.com/5a70ebe4-cdad-4f94-b87f-eb54b14735b0/saml2 'self'; object-src 'none'; base-uri 'self'; report-uri /nscsp_violation/report_uri
Set-Cookie NSC_TMAC=/cgi/tmlogin;Path=/;Secure
Set-Cookie NSC_TEMP=xyz;Path=/;expires=Wednesday, 09-Nov-1999 23:12:40 GMT;Secure
Set-Cookie NSC_PERS=xyz;Path=/;expires=Wednesday, 09-Nov-1999 23:12:40 GMT;Secure
Set-Cookie NSC_TEMP=xyz;Path=/;expires=Wednesday, 09-Nov-1999 23:12:40 GMT
Set-Cookie NSC_PERS=xyz;Path=/;expires=Wednesday, 09-Nov-1999 23:12:40 GMT
X-Content-Type-Options nosniff
X-XSS-Protection 1; mode=block
Connection close
Content-Length 1710
Cache-control no-cache, no-store, must-revalidate
Pragma no-cache
Content-Type text/html; charset=utf-8


Miscellaneous
Test date Thu, 22 Jan 2026 02:50:16 UTC
Test duration 29.798 seconds
HTTP status code 200
HTTP server signature -
Server hostname -


SSL Report v2.4.1