SSL Report: srv195.kzgm.katowice.pl (89.25.207.195)
Assessed on:  Fri, 07 Nov 2025 06:01:42 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 server's certificate is not trusted by Java trust store (see below for details).
This server supports TLS 1.3.  MORE INFO »
DNS Certification Authority Authorization (CAA) Policy found for this domain.  MORE INFO »
Certificate #1: RSA 4096 bits (SHA256withRSA)
Server Key and Certificate #1
Subject *.kzgm.katowice.pl
Fingerprint SHA256: 614bf75d3dbc02a98fbc476ab9894ba8212a8271d37559c3ef10f9aae36b9943
Pin SHA256: KUrjXshRky4Q2X7Tz4UD+4W/MxNiqQFWxoJwOx/9Pcs=
Common names *.kzgm.katowice.pl
Alternative names *.kzgm.katowice.pl kzgm.katowice.pl
Serial Number 0acdf3800eb3f6c30ef6363057c249e3
Valid from Thu, 06 Nov 2025 13:14:11 UTC
Valid until Fri, 06 Nov 2026 13:14:10 UTC (expires in 11 months and 30 days)
Key RSA 4096 bits (e 65537)
Weak key (Debian) No
Issuer Certum OV TLS G2 R39 CA
AIA: http://certumovtlsg2r39ca.repository.certum.pl/certumovtlsg2r39ca.cer
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL, OCSP
CRL: http://certumovtlsg2r39ca.crl.certum.pl/certumovtlsg2r39ca.crl
OCSP: http://certumovtlsg2r39ca.ocsp-certum.com
Revocation status Good (not revoked)
CRL ERROR: IOException occurred
DNS CAA Yes
policy host: kzgm.katowice.pl
issue: letsencrypt.org flags:0
issue: certum.pl flags:0
issuewild: sectigo.com flags:0
issue: sectigo.com flags:0
issuewild: certum.pl flags:0
issue: digicert.com flags:0
issuewild: letsencrypt.org flags:0
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 3 (5376 bytes)
Chain issues Contains anchor
#2
Subject Certum OV TLS G2 R39 CA
Fingerprint SHA256: f54ce21ea0f79548f1201a619049ca15f065e49a69f26fb9cf1282c7eecf9c4c
Pin SHA256: SoFCm4qoQgj2h7VZkPZuglKI1+wTCs4imvCo8F0QrIU=
Valid until Sun, 05 Jun 2039 07:43:39 UTC (expires in 13 years and 6 months)
Key RSA 4096 bits (e 65537)
Issuer Certum Trusted Root CA
Signature algorithm SHA512withRSA
#3
Subject Certum Trusted Root CA   In trust store
Fingerprint SHA256: fe7696573855773e37a95e7ad4d9cc96c30157c15d31765ba9b15704e1ae78fd
Pin SHA256: aB3EgsKWyEAsbrsg5oMJo7yEZSOuNLmEqE7ml6MxLbc=
Valid until Mon, 16 Mar 2043 12:10:13 UTC (expires in 17 years and 4 months)
Key RSA 4096 bits (e 65537)
Issuer Certum Trusted Root CA   Self-signed
Signature algorithm SHA512withRSA


Certification Paths
Path #1: Trusted
1 Sent by server *.kzgm.katowice.pl
Fingerprint SHA256: 614bf75d3dbc02a98fbc476ab9894ba8212a8271d37559c3ef10f9aae36b9943
Pin SHA256: KUrjXshRky4Q2X7Tz4UD+4W/MxNiqQFWxoJwOx/9Pcs=
RSA 4096 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server Certum OV TLS G2 R39 CA
Fingerprint SHA256: f54ce21ea0f79548f1201a619049ca15f065e49a69f26fb9cf1282c7eecf9c4c
Pin SHA256: SoFCm4qoQgj2h7VZkPZuglKI1+wTCs4imvCo8F0QrIU=
RSA 4096 bits (e 65537) / SHA512withRSA
CRL ERROR: IOException occurred
3 Sent by server
In trust store 		Certum Trusted Root CA   Self-signed
Fingerprint SHA256: fe7696573855773e37a95e7ad4d9cc96c30157c15d31765ba9b15704e1ae78fd
Pin SHA256: aB3EgsKWyEAsbrsg5oMJo7yEZSOuNLmEqE7ml6MxLbc=
RSA 4096 bits (e 65537) / SHA512withRSA
Path #1: Trusted
1 Sent by server *.kzgm.katowice.pl
Fingerprint SHA256: 614bf75d3dbc02a98fbc476ab9894ba8212a8271d37559c3ef10f9aae36b9943
Pin SHA256: KUrjXshRky4Q2X7Tz4UD+4W/MxNiqQFWxoJwOx/9Pcs=
RSA 4096 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server Certum OV TLS G2 R39 CA
Fingerprint SHA256: f54ce21ea0f79548f1201a619049ca15f065e49a69f26fb9cf1282c7eecf9c4c
Pin SHA256: SoFCm4qoQgj2h7VZkPZuglKI1+wTCs4imvCo8F0QrIU=
RSA 4096 bits (e 65537) / SHA512withRSA
CRL ERROR: IOException occurred
3 Sent by server
In trust store 		Certum Trusted Root CA   Self-signed
Fingerprint SHA256: fe7696573855773e37a95e7ad4d9cc96c30157c15d31765ba9b15704e1ae78fd
Pin SHA256: aB3EgsKWyEAsbrsg5oMJo7yEZSOuNLmEqE7ml6MxLbc=
RSA 4096 bits (e 65537) / SHA512withRSA
Path #1: Trusted
1 Sent by server *.kzgm.katowice.pl
Fingerprint SHA256: 614bf75d3dbc02a98fbc476ab9894ba8212a8271d37559c3ef10f9aae36b9943
Pin SHA256: KUrjXshRky4Q2X7Tz4UD+4W/MxNiqQFWxoJwOx/9Pcs=
RSA 4096 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server Certum OV TLS G2 R39 CA
Fingerprint SHA256: f54ce21ea0f79548f1201a619049ca15f065e49a69f26fb9cf1282c7eecf9c4c
Pin SHA256: SoFCm4qoQgj2h7VZkPZuglKI1+wTCs4imvCo8F0QrIU=
RSA 4096 bits (e 65537) / SHA512withRSA
CRL ERROR: IOException occurred
3 Sent by server
In trust store 		Certum Trusted Root CA   Self-signed
Fingerprint SHA256: fe7696573855773e37a95e7ad4d9cc96c30157c15d31765ba9b15704e1ae78fd
Pin SHA256: aB3EgsKWyEAsbrsg5oMJo7yEZSOuNLmEqE7ml6MxLbc=
RSA 4096 bits (e 65537) / SHA512withRSA
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server *.kzgm.katowice.pl
Fingerprint SHA256: 614bf75d3dbc02a98fbc476ab9894ba8212a8271d37559c3ef10f9aae36b9943
Pin SHA256: KUrjXshRky4Q2X7Tz4UD+4W/MxNiqQFWxoJwOx/9Pcs=
RSA 4096 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server Certum OV TLS G2 R39 CA
Fingerprint SHA256: f54ce21ea0f79548f1201a619049ca15f065e49a69f26fb9cf1282c7eecf9c4c
Pin SHA256: SoFCm4qoQgj2h7VZkPZuglKI1+wTCs4imvCo8F0QrIU=
RSA 4096 bits (e 65537) / SHA512withRSA
CRL ERROR: IOException occurred
3 Sent by server
  Not in trust store 		Certum Trusted Root CA   Self-signed
Fingerprint SHA256: fe7696573855773e37a95e7ad4d9cc96c30157c15d31765ba9b15704e1ae78fd
Pin SHA256: aB3EgsKWyEAsbrsg5oMJo7yEZSOuNLmEqE7ml6MxLbc=
RSA 4096 bits (e 65537) / SHA512withRSA
Path #1: Trusted
1 Sent by server *.kzgm.katowice.pl
Fingerprint SHA256: 614bf75d3dbc02a98fbc476ab9894ba8212a8271d37559c3ef10f9aae36b9943
Pin SHA256: KUrjXshRky4Q2X7Tz4UD+4W/MxNiqQFWxoJwOx/9Pcs=
RSA 4096 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server Certum OV TLS G2 R39 CA
Fingerprint SHA256: f54ce21ea0f79548f1201a619049ca15f065e49a69f26fb9cf1282c7eecf9c4c
Pin SHA256: SoFCm4qoQgj2h7VZkPZuglKI1+wTCs4imvCo8F0QrIU=
RSA 4096 bits (e 65537) / SHA512withRSA
CRL ERROR: IOException occurred
3 Sent by server
In trust store 		Certum Trusted Root CA   Self-signed
Fingerprint SHA256: fe7696573855773e37a95e7ad4d9cc96c30157c15d31765ba9b15704e1ae78fd
Pin SHA256: aB3EgsKWyEAsbrsg5oMJo7yEZSOuNLmEqE7ml6MxLbc=
RSA 4096 bits (e 65537) / SHA512withRSA

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


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_CHACHA20_POLY1305_SHA256 (0x1303)   ECDH x25519 (eq. 3072 bits RSA)   FS 256P
TLS_AES_128_GCM_SHA256 (0x1301)   ECDH x25519 (eq. 3072 bits RSA)   FS 128
# TLS 1.2 (suites in server-preferred order)
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)   ECDH x25519 (eq. 3072 bits RSA)   FS 128
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 (0x9f)   DH 2048 bits   FS 256
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (0x9e)   DH 2048 bits   FS 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_DHE_RSA_WITH_AES_256_CCM_8 (0xc0a3)   DH 2048 bits   FS 256
TLS_DHE_RSA_WITH_AES_256_CCM (0xc09f)   DH 2048 bits   FS 256
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 (0x6b)   DH 2048 bits   FS   WEAK 256
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x39)   DH 2048 bits   FS   WEAK 256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_DHE_RSA_WITH_AES_128_CCM_8 (0xc0a2)   DH 2048 bits   FS 128
TLS_DHE_RSA_WITH_AES_128_CCM (0xc09e)   DH 2048 bits   FS 128
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 (0x67)   DH 2048 bits   FS   WEAK 128
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (0x33)   DH 2048 bits   FS   WEAK 128
TLS_RSA_WITH_AES_256_GCM_SHA384 (0x9d)   WEAK 256
TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c)   WEAK 128
TLS_RSA_WITH_AES_256_CCM_8 (0xc0a1)   WEAK 256
TLS_RSA_WITH_AES_256_CCM (0xc09d)   WEAK 256
TLS_RSA_WITH_AES_128_CCM_8 (0xc0a0)   WEAK 128
TLS_RSA_WITH_AES_128_CCM (0xc09c)   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_CBC_SHA (0x35)   WEAK 256
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
(P) This server prefers ChaCha20 suites with clients that don't have AES-NI (e.g., Android devices)


Handshake Simulation
Android 4.4.2 RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Android 5.0.0 RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 6.0 Server closed connection
Android 7.0 RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Android 8.0 RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   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 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Chrome 49 / XP SP3 Server closed connection
Chrome 69 / Win 7  R RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
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 31.3.0 ESR / Win 7 RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 47 / Win 7  R Server closed connection
Firefox 49 / XP SP3 Server closed connection
Firefox 62 / Win 7  R RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Firefox 73 / Win 10  R -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
Googlebot Feb 2018 RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
IE 11 / Win 7  R RSA 4096 (SHA256)   TLS 1.2 TLS_DHE_RSA_WITH_AES_256_GCM_SHA384   DH 2048  FS
IE 11 / Win 8.1  R Server closed connection
IE 11 / Win Phone 8.1  R Server closed connection
IE 11 / Win Phone 8.1 Update  R Server closed connection
IE 11 / Win 10  R RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Edge 15 / Win 10  R RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Edge 16 / Win 10  R RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Edge 18 / Win 10  R RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Edge 13 / Win Phone 10  R RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Java 8u161 RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  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 1.0.1l  R RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
OpenSSL 1.0.2s  R RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
OpenSSL 1.1.0k  R RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   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 RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  FS
Safari 7 / iOS 7.1  R RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  FS
Safari 7 / OS X 10.9  R RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  FS
Safari 8 / iOS 8.4  R RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  FS
Safari 8 / OS X 10.10  R RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  FS
Safari 9 / iOS 9  R Server closed connection
Safari 9 / OS X 10.11  R Server closed connection
Safari 10 / iOS 10  R Server closed connection
Safari 10 / OS X 10.12  R Server closed connection
Safari 12.1.2 / MacOS 10.14.6 Beta  R Server closed connection
Safari 12.1.1 / iOS 12.3.1  R Server closed connection
Apple ATS 9 / iOS 9  R Server closed connection
Yahoo Slurp Jan 2015 RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
YandexBot Jan 2015 RSA 4096 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   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)   TLS 1.2 : 0xc014
GOLDENDOODLE No (more info)   TLS 1.2 : 0xc014
OpenSSL 0-Length No (more info)   TLS 1.2 : 0xc014
Sleeping POODLE No (more info)   TLS 1.2 : 0xc014
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 No
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
DH public server param (Ys) reuse No
ECDH public server param reuse No
Supported Named Groups x25519, secp256r1, x448, secp521r1, secp384r1 (server preferred order)
SSL 2 handshake compatibility No
0-RTT enabled No


HTTP Requests
1 https://srv195.kzgm.katowice.pl/  (HTTP/1.1 302 Found)
1
content-length 0
location https://www.kzgm.katowice.pl
cache-control no-cache
connection close


Miscellaneous
Test date Fri, 07 Nov 2025 05:59:23 UTC
Test duration 139.338 seconds
HTTP status code 302
HTTP forwarding https://www.kzgm.katowice.pl
HTTP server signature -
Server hostname srv195.kzgm.katowice.pl


SSL Report v2.4.1