SSL Report: dmst.cnb.cz (193.84.159.143)
Assessed on:  Fri, 25 Jul 2025 00:46:01 UTC | Clear cache
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Summary
Overall Rating
T
If trust issues are ignored: C
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 server's certificate is not trusted, see below for details.
This server is vulnerable to the POODLE attack. If possible, disable SSL 3 to mitigate. Grade capped to C.   MORE INFO »
This server's certificate is not trusted by major browsers. MORE INFO »
This server does not support Forward Secrecy with the reference browsers. Grade capped to B.  MORE INFO »
This server supports TLS 1.0 and TLS 1.1. Grade capped to B. MORE INFO »
This server does not support TLS 1.3.  MORE INFO »
Certificate #1: RSA 3072 bits (SHA256withRSA)
Server Key and Certificate #1
Subject dmst.cnb.cz
Fingerprint SHA256: ab2e1bcfe6d5c0c625e55570ff25db042e42293c93cc5feab155fc8eef95f1e5
Pin SHA256: Mk08Iu6VKv2tkdmmb6OS24jVEqMpPz0ljdpLFjB356U=
Common names dmst.cnb.cz
Alternative names dmst.cnb.cz dmzdmst.cnb.cz
Serial Number 1a0000df29e48a5e2364d1f12b00000000df29
Valid from Tue, 01 Apr 2025 11:14:36 UTC
Valid until Tue, 15 Dec 2026 09:57:16 UTC (expires in 1 year and 4 months)
Key RSA 3072 bits (e 65537)
Weak key (Debian) No
Issuer CNB Issuing CA
AIA: ldap:///CN=CNB%20Issuing%20CA,CN=AIA,CN=Public%20Key%20Services,CN=Services,CN=Configuration,DC=ms,DC=cnb,DC=cz?cACertificate?base?objectClass=certificationAuthority
AIA: http://pki.cnb.cz/crts/CNB%20Issuing%20CA.crt
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency No
OCSP Must Staple No
Revocation information CRL, OCSP
CRL: http://pki.cnb.cz/crls/CNB%20Issuing%20CA.crl
OCSP: http://pki.cnb.cz/ocsp
Revocation status Unchecked (only trusted certificates can be checked)
DNS CAA No (more info)
Trusted No   NOT TRUSTED (Why?)
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 3 (5422 bytes)
Chain issues Contains anchor
#2
Subject CNB Issuing CA
Fingerprint SHA256: b87a3a549919185bbc0b77d206e1c609f019dc4a1f3f204a8b5188b60d15bc68
Pin SHA256: 3A1E+5jlkchBjLglxBmN5m896RnUTpE1cHmG1zrQFMQ=
Valid until Tue, 15 Dec 2026 09:57:16 UTC (expires in 1 year and 4 months)
Key RSA 4096 bits (e 65537)
Issuer CNB Root CA
Signature algorithm SHA256withRSA
#3
Subject CNB Root CA   Not in trust store
Fingerprint SHA256: 397d959cac191ba3ed284a79ffcff6509cfe610e900a58fbfe065b48d82d09ba
Pin SHA256: CCakStxFVpj70XPRpVeTp/cL6ZYhSDlw1y4Kw5k80H8=
Valid until Sun, 15 Dec 2041 08:58:38 UTC (expires in 16 years and 4 months)
Key RSA 4096 bits (e 65537)
Issuer CNB Root CA   Self-signed
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server dmst.cnb.cz
Fingerprint SHA256: ab2e1bcfe6d5c0c625e55570ff25db042e42293c93cc5feab155fc8eef95f1e5
Pin SHA256: Mk08Iu6VKv2tkdmmb6OS24jVEqMpPz0ljdpLFjB356U=
RSA 3072 bits (e 65537) / SHA256withRSA
2 Sent by server CNB Issuing CA
Fingerprint SHA256: b87a3a549919185bbc0b77d206e1c609f019dc4a1f3f204a8b5188b60d15bc68
Pin SHA256: 3A1E+5jlkchBjLglxBmN5m896RnUTpE1cHmG1zrQFMQ=
RSA 4096 bits (e 65537) / SHA256withRSA
3 Sent by server
  Not in trust store 		CNB Root CA   Self-signed
Fingerprint SHA256: 397d959cac191ba3ed284a79ffcff6509cfe610e900a58fbfe065b48d82d09ba
Pin SHA256: CCakStxFVpj70XPRpVeTp/cL6ZYhSDlw1y4Kw5k80H8=
RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server dmst.cnb.cz
Fingerprint SHA256: ab2e1bcfe6d5c0c625e55570ff25db042e42293c93cc5feab155fc8eef95f1e5
Pin SHA256: Mk08Iu6VKv2tkdmmb6OS24jVEqMpPz0ljdpLFjB356U=
RSA 3072 bits (e 65537) / SHA256withRSA
2 Sent by server CNB Issuing CA
Fingerprint SHA256: b87a3a549919185bbc0b77d206e1c609f019dc4a1f3f204a8b5188b60d15bc68
Pin SHA256: 3A1E+5jlkchBjLglxBmN5m896RnUTpE1cHmG1zrQFMQ=
RSA 4096 bits (e 65537) / SHA256withRSA
3 Sent by server
  Not in trust store 		CNB Root CA   Self-signed
Fingerprint SHA256: 397d959cac191ba3ed284a79ffcff6509cfe610e900a58fbfe065b48d82d09ba
Pin SHA256: CCakStxFVpj70XPRpVeTp/cL6ZYhSDlw1y4Kw5k80H8=
RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server dmst.cnb.cz
Fingerprint SHA256: ab2e1bcfe6d5c0c625e55570ff25db042e42293c93cc5feab155fc8eef95f1e5
Pin SHA256: Mk08Iu6VKv2tkdmmb6OS24jVEqMpPz0ljdpLFjB356U=
RSA 3072 bits (e 65537) / SHA256withRSA
2 Sent by server CNB Issuing CA
Fingerprint SHA256: b87a3a549919185bbc0b77d206e1c609f019dc4a1f3f204a8b5188b60d15bc68
Pin SHA256: 3A1E+5jlkchBjLglxBmN5m896RnUTpE1cHmG1zrQFMQ=
RSA 4096 bits (e 65537) / SHA256withRSA
3 Sent by server
  Not in trust store 		CNB Root CA   Self-signed
Fingerprint SHA256: 397d959cac191ba3ed284a79ffcff6509cfe610e900a58fbfe065b48d82d09ba
Pin SHA256: CCakStxFVpj70XPRpVeTp/cL6ZYhSDlw1y4Kw5k80H8=
RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server dmst.cnb.cz
Fingerprint SHA256: ab2e1bcfe6d5c0c625e55570ff25db042e42293c93cc5feab155fc8eef95f1e5
Pin SHA256: Mk08Iu6VKv2tkdmmb6OS24jVEqMpPz0ljdpLFjB356U=
RSA 3072 bits (e 65537) / SHA256withRSA
2 Sent by server CNB Issuing CA
Fingerprint SHA256: b87a3a549919185bbc0b77d206e1c609f019dc4a1f3f204a8b5188b60d15bc68
Pin SHA256: 3A1E+5jlkchBjLglxBmN5m896RnUTpE1cHmG1zrQFMQ=
RSA 4096 bits (e 65537) / SHA256withRSA
3 Sent by server
  Not in trust store 		CNB Root CA   Self-signed
Fingerprint SHA256: 397d959cac191ba3ed284a79ffcff6509cfe610e900a58fbfe065b48d82d09ba
Pin SHA256: CCakStxFVpj70XPRpVeTp/cL6ZYhSDlw1y4Kw5k80H8=
RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server dmst.cnb.cz
Fingerprint SHA256: ab2e1bcfe6d5c0c625e55570ff25db042e42293c93cc5feab155fc8eef95f1e5
Pin SHA256: Mk08Iu6VKv2tkdmmb6OS24jVEqMpPz0ljdpLFjB356U=
RSA 3072 bits (e 65537) / SHA256withRSA
2 Sent by server CNB Issuing CA
Fingerprint SHA256: b87a3a549919185bbc0b77d206e1c609f019dc4a1f3f204a8b5188b60d15bc68
Pin SHA256: 3A1E+5jlkchBjLglxBmN5m896RnUTpE1cHmG1zrQFMQ=
RSA 4096 bits (e 65537) / SHA256withRSA
3 Sent by server
  Not in trust store 		CNB Root CA   Self-signed
Fingerprint SHA256: 397d959cac191ba3ed284a79ffcff6509cfe610e900a58fbfe065b48d82d09ba
Pin SHA256: CCakStxFVpj70XPRpVeTp/cL6ZYhSDlw1y4Kw5k80H8=
RSA 4096 bits (e 65537) / SHA256withRSA

Click here to expand

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


Cipher Suites
# TLS 1.2 (suites in server-preferred order)
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)   WEAK 256
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_RSA_WITH_AES_256_CBC_SHA256 (0x3d)   WEAK 256
TLS_RSA_WITH_AES_128_CBC_SHA256 (0x3c)   WEAK 128
TLS_RSA_WITH_AES_256_GCM_SHA384 (0x9d)   WEAK 256
TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c)   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 128
# TLS 1.1 (suites in server-preferred order)
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)   WEAK 256
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
# TLS 1.0 (suites in server-preferred order)
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)   WEAK 256
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
# SSL 3 (suites in server-preferred order)
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)   WEAK 256
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128


Handshake Simulation
Android 2.3.7   No SNI 2 RSA 3072 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 4.0.4 RSA 3072 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Android 4.1.1 RSA 3072 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Android 4.2.2 RSA 3072 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Android 4.3 RSA 3072 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Android 4.4.2 RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Android 5.0.0 RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Android 6.0 RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Android 7.0 RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Android 8.0 RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Android 8.1 RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Android 9.0 RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Baidu Jan 2015 RSA 3072 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
BingPreview Jan 2015 RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Chrome 49 / XP SP3 RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Chrome 69 / Win 7  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Chrome 70 / Win 10 RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Chrome 80 / Win 10  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Firefox 31.3.0 ESR / Win 7 RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Firefox 47 / Win 7  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Firefox 49 / XP SP3 RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Firefox 62 / Win 7  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Firefox 73 / Win 10  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Googlebot Feb 2018 RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
IE 6 / XP   No FS 1   No SNI 2 Server sent fatal alert: handshake_failure
IE 7 / Vista RSA 3072 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
IE 8 / XP   No FS 1   No SNI 2 Server sent fatal alert: handshake_failure
IE 8-10 / Win 7  R RSA 3072 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
IE 11 / Win 7  R RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
IE 11 / Win 8.1  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
IE 10 / Win Phone 8.0 RSA 3072 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
IE 11 / Win Phone 8.1  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
IE 11 / Win Phone 8.1 Update  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
IE 11 / Win 10  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Edge 15 / Win 10  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Edge 16 / Win 10  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Edge 18 / Win 10  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Edge 13 / Win Phone 10  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Java 6u45   No SNI 2 RSA 3072 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Java 7u25 RSA 3072 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Java 8u161 RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Java 11.0.3 RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Java 12.0.1 RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
OpenSSL 0.9.8y RSA 3072 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
OpenSSL 1.0.1l  R RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
OpenSSL 1.0.2s  R RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
OpenSSL 1.1.0k  R RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
OpenSSL 1.1.1c  R RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Safari 5.1.9 / OS X 10.6.8 RSA 3072 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Safari 6 / iOS 6.0.1 RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Safari 6.0.4 / OS X 10.8.4  R RSA 3072 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Safari 7 / iOS 7.1  R RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Safari 7 / OS X 10.9  R RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Safari 8 / iOS 8.4  R RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Safari 8 / OS X 10.10  R RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Safari 9 / iOS 9  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Safari 9 / OS X 10.11  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Safari 10 / iOS 10  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Safari 10 / OS X 10.12  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Safari 12.1.2 / MacOS 10.14.6 Beta  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Safari 12.1.1 / iOS 12.3.1  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_RSA_WITH_AES_256_CBC_SHA  No FS
Apple ATS 9 / iOS 9  R RSA 3072 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Yahoo Slurp Jan 2015 RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
YandexBot Jan 2015 RSA 3072 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_256_CBC_SHA  No FS
(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 Yes
Insecure Client-Initiated Renegotiation No
BEAST attack Not mitigated server-side (more info)   SSL 3: 0x35, TLS 1.0: 0x35
POODLE (SSLv3) Vulnerable   INSECURE (more info)   SSL 3: 0x35
POODLE (TLS) No (more info)
Zombie POODLE No (more info)   TLS 1.2 : 0x0035
GOLDENDOODLE No (more info)   TLS 1.2 : 0x0035
OpenSSL 0-Length No (more info)   TLS 1.2 : 0x0035
Sleeping POODLE No (more info)   TLS 1.2 : 0x0035
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 With some browsers (more info)
ALPN Yes   http/1.1
NPN No
Session resumption (caching) Yes
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)
Long handshake intolerance No
TLS extension intolerance No
TLS version intolerance TLS 1.152 TLS 2.152 
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 secp256r1, secp384r1, secp224r1, secp521r1 (server preferred order)
SSL 2 handshake compatibility Yes


HTTP Requests
1 https://dmst.cnb.cz/  (HTTP/1.1 302 Object Moved)
1
Location /logon/LogonPoint/tmindex.html
Content-Security-Policy default-src 'self'; script-src 'self'; connect-src 'self'; img-src http://localhost:* '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 'self'; object-src 'none'; base-uri 'self'; report-uri /nscsp_violation/report_uri
Set-Cookie NSC_DLGE=xyz;Path=/;expires=Wednesday, 09-Nov-1999 23:12:40 GMT;Secure
Set-Cookie NSC_USER=xyz;Path=/;expires=Wednesday, 09-Nov-1999 23:12:40 GMT;Secure
Set-Cookie NSC_CERT=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;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 413
Cache-control no-cache, no-store, must-revalidate
Pragma no-cache
Content-Type text/html; charset=utf-8
2 https://dmst.cnb.cz/logon/LogonPoint/tmindex.html  (HTTP/1.1 200 OK)
2
Date Fri, 25 Jul 2025 00:42:26 GMT
Server Apache
X-Frame-Options SAMEORIGIN
Last-Modified Fri, 11 Jul 2025 14:00:01 GMT
ETag "a745-639a7b9e425b1"
Accept-Ranges bytes
Content-Length 42821
Feature-Policy camera 'none'; microphone 'none'; geolocation 'none'
Referrer-Policy no-referrer
X-XSS-Protection 1; mode=block
X-Content-Type-Options nosniff
Content-Security-Policy default-src 'self'; script-src https://www.google.com/recaptcha/api.js https://www.gstatic.com/recaptcha/releases/ 'self'; connect-src 'self'; img-src http://localhost:* 'self' data:; style-src 'self' 'unsafe-inline'; font-src 'self' data:; frame-src https://www.google.com/recaptcha/ com.citrix.agmacepa://* citrixng://* com.citrix.nsgclient://* vmware-view://* nsgcepa://* application://* receiver://* 'self'; child-src 'self' com.citrix.agmacepa://* citrixng://* com.citrix.nsgclient://* vmware-view://* nsgcepa://nsgcepa application://*; form-action 'self'; object-src 'none'; base-uri 'self'; report-uri /nscsp_violation/report_uri
Cache-Control no-cache, no-store, must-revalidate
Connection close
Content-Type text/html; charset=utf-8
Set-Cookie EPAID=;Secure;Path=/;


Miscellaneous
Test date Fri, 25 Jul 2025 00:42:12 UTC
Test duration 229.521 seconds
HTTP status code 200
HTTP server signature Apache
Server hostname dmst.cnb.cz


Why is my certificate not trusted?

There are many reasons why a certificate may not be trusted. The exact problem is indicated on the report card in bright red. The problems fall into three categories:

  1. Invalid certificate
  2. Invalid configuration
  3. Unknown Certificate Authority

1. Invalid certificate

A certificate is invalid if:

2. Invalid configuration

In some cases, the certificate chain does not contain all the necessary certificates to connect the web server certificate to one of the root certificates in our trust store. Less commonly, one of the certificates in the chain (other than the web server certificate) will have expired, and that invalidates the entire chain.

3. Unknown Certificate Authority

In order for trust to be established, we must have the root certificate of the signing Certificate Authority in our trust store. SSL Labs does not maintain its own trust store; instead we use the store maintained by Mozilla.

If we mark a web site as not trusted, that means that the average web user's browser will not trust it either. For certain special groups of users, such web sites can still be secure. For example, if you can securely verify that a self-signed web site is operated by a person you trust, then you can trust that self-signed web site too. Or, if you work for an organisation that manages its own trust, and you have their own root certificate already embedded in your browser. Such special cases do not work for the general public, however, and this is what we indicate on our report card.

4. Interoperability issues

In some rare cases trust cannot be established because of interoperability issues between our code and the code or configuration running on the server. We manually review such cases, but if you encounter such an issue please feel free to contact us. Such problems are very difficult to troubleshoot and you may be able to provide us with information that might help us determine the root cause.

SSL Report v2.4.1