SSL Server Test: ikonto.um.bytom.pl (Powered by Qualys SSL Labs)

SSL Report: ikonto.um.bytom.pl (94.231.15.16)

Assessed on: Thu, 11 Sep 2025 02:55:26 UTC | Clear cache

Due to a recently discovered bug in Apple's code, your browser is exposed to MITM attacks. Click here for more information.

Summary

Overall Rating

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 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 1.1. Grade capped to B. MORE INFO »

This server supports TLS 1.3. MORE INFO »

HTTP Strict Transport Security (HSTS) with long duration deployed on this server. MORE INFO »

DNS Certification Authority Authorization (CAA) Policy found for this domain. MORE INFO »

Certificate #1: RSA 2048 bits (SHA256withRSA)

Server Key and Certificate #1
Subject	*.um.bytom.pl Fingerprint SHA256: b04673dc58b559d7c4290232f079125c29fbf7ec0867e89043947afa5efea917 Pin SHA256: 5PylMPFogWWRFM3sQ9LwUIVFVtmQTNyZJ580VCpyXgY=
Common names	*.um.bytom.pl
Alternative names	*.um.bytom.pl um.bytom.pl
Serial Number	13dbc063dd2037ffdc2dd112a3dc92a0
Valid from	Fri, 25 Oct 2024 12:47:31 UTC
Valid until	Sat, 25 Oct 2025 12:47:30 UTC (expires in 1 month and 14 days)
Key	RSA 2048 bits (e 65537)
Weak key (Debian)	No
Issuer	Certum Organization Validation CA SHA2 AIA: http://repository.certum.pl/ovcasha2.cer
Signature algorithm	SHA256withRSA
Extended Validation	No
Certificate Transparency	Yes (certificate)
OCSP Must Staple	No
Revocation information	CRL, OCSP CRL: http://crl.certum.pl/ovcasha2.crl OCSP: http://ovcasha2.ocsp-certum.com
Revocation status	Good (not revoked)
DNS CAA	Yes policy host: um.bytom.pl issue: certum.pl flags:0 issuewild: certum.pl flags:0 issue: letsencrypt.org flags:0 issuewild: letsencrypt.org flags:0
Trusted	Yes Mozilla Apple Android Java Windows

Additional Certificates (if supplied)
Certificates provided	3 (3931 bytes)
Chain issues	Contains anchor
#2
Subject	Certum Organization Validation CA SHA2 Fingerprint SHA256: fd02362244f31266caff005818d1004ec4eb08fb239aafaaafff47497d6005d6 Pin SHA256: 51GveKNrpJjtGpXY5QDx03s3YTQwaQic6dWBqo3zX6s=
Valid until	Wed, 09 Jun 2027 10:46:39 UTC (expires in 1 year and 8 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 3 months)
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: Trusted
1	Sent by server	*.um.bytom.pl Fingerprint SHA256: b04673dc58b559d7c4290232f079125c29fbf7ec0867e89043947afa5efea917 Pin SHA256: 5PylMPFogWWRFM3sQ9LwUIVFVtmQTNyZJ580VCpyXgY= RSA 2048 bits (e 65537) / SHA256withRSA
2	Sent by server	Certum Organization Validation CA SHA2 Fingerprint SHA256: fd02362244f31266caff005818d1004ec4eb08fb239aafaaafff47497d6005d6 Pin SHA256: 51GveKNrpJjtGpXY5QDx03s3YTQwaQic6dWBqo3zX6s= RSA 2048 bits (e 65537) / SHA256withRSA
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: Trusted
1	Sent by server	*.um.bytom.pl Fingerprint SHA256: b04673dc58b559d7c4290232f079125c29fbf7ec0867e89043947afa5efea917 Pin SHA256: 5PylMPFogWWRFM3sQ9LwUIVFVtmQTNyZJ580VCpyXgY= RSA 2048 bits (e 65537) / SHA256withRSA
2	Sent by server	Certum Organization Validation CA SHA2 Fingerprint SHA256: fd02362244f31266caff005818d1004ec4eb08fb239aafaaafff47497d6005d6 Pin SHA256: 51GveKNrpJjtGpXY5QDx03s3YTQwaQic6dWBqo3zX6s= RSA 2048 bits (e 65537) / SHA256withRSA
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: Trusted
1	Sent by server	*.um.bytom.pl Fingerprint SHA256: b04673dc58b559d7c4290232f079125c29fbf7ec0867e89043947afa5efea917 Pin SHA256: 5PylMPFogWWRFM3sQ9LwUIVFVtmQTNyZJ580VCpyXgY= RSA 2048 bits (e 65537) / SHA256withRSA
2	Sent by server	Certum Organization Validation CA SHA2 Fingerprint SHA256: fd02362244f31266caff005818d1004ec4eb08fb239aafaaafff47497d6005d6 Pin SHA256: 51GveKNrpJjtGpXY5QDx03s3YTQwaQic6dWBqo3zX6s= RSA 2048 bits (e 65537) / SHA256withRSA
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: Trusted
1	Sent by server	*.um.bytom.pl Fingerprint SHA256: b04673dc58b559d7c4290232f079125c29fbf7ec0867e89043947afa5efea917 Pin SHA256: 5PylMPFogWWRFM3sQ9LwUIVFVtmQTNyZJ580VCpyXgY= RSA 2048 bits (e 65537) / SHA256withRSA
2	Sent by server	Certum Organization Validation CA SHA2 Fingerprint SHA256: fd02362244f31266caff005818d1004ec4eb08fb239aafaaafff47497d6005d6 Pin SHA256: 51GveKNrpJjtGpXY5QDx03s3YTQwaQic6dWBqo3zX6s= RSA 2048 bits (e 65537) / SHA256withRSA
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: Trusted
1	Sent by server	*.um.bytom.pl Fingerprint SHA256: b04673dc58b559d7c4290232f079125c29fbf7ec0867e89043947afa5efea917 Pin SHA256: 5PylMPFogWWRFM3sQ9LwUIVFVtmQTNyZJ580VCpyXgY= RSA 2048 bits (e 65537) / SHA256withRSA
2	Sent by server	Certum Organization Validation CA SHA2 Fingerprint SHA256: fd02362244f31266caff005818d1004ec4eb08fb239aafaaafff47497d6005d6 Pin SHA256: 51GveKNrpJjtGpXY5QDx03s3YTQwaQic6dWBqo3zX6s= RSA 2048 bits (e 65537) / SHA256withRSA
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

Certificate #2: RSA 2048 bits (SHA256withRSA)

Server Key and Certificate #1
Subject	ikonto.um.bytom.pl Fingerprint SHA256: 93f3b674abe86dca9e7baf46a8f53d8e38d886628bbc90510eca7dd24ac5f8ee Pin SHA256: Z3F6E37rsYMIwXXvPYe0MmW3Fs0IaPscm1iqvONJNeA=
Common names	ikonto.um.bytom.pl
Alternative names	- INVALID
Serial Number	5ea617455538c5d65823106c3d760197f354076b
Valid from	Thu, 10 Jul 2025 07:54:19 UTC
Valid until	Mon, 31 Dec 2035 22:59:59 UTC (expires in 10 years and 3 months)
Key	RSA 2048 bits (e 65537)
Weak key (Debian)	No
Issuer	ikonto.um.bytom.pl Self-signed
Signature algorithm	SHA256withRSA
Extended Validation	No
Certificate Transparency	No
OCSP Must Staple	No
Revocation information	None
DNS CAA	Yes policy host: um.bytom.pl issue: certum.pl flags:0 issuewild: certum.pl flags:0 issue: letsencrypt.org flags:0 issuewild: letsencrypt.org flags:0
Trusted	No NOT TRUSTED Mozilla Apple Android Java Windows

Additional Certificates (if supplied)
Certificates provided	1 (879 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	ikonto.um.bytom.pl Self-signed Fingerprint SHA256: 93f3b674abe86dca9e7baf46a8f53d8e38d886628bbc90510eca7dd24ac5f8ee Pin SHA256: Z3F6E37rsYMIwXXvPYe0MmW3Fs0IaPscm1iqvONJNeA= 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	ikonto.um.bytom.pl Self-signed Fingerprint SHA256: 93f3b674abe86dca9e7baf46a8f53d8e38d886628bbc90510eca7dd24ac5f8ee Pin SHA256: Z3F6E37rsYMIwXXvPYe0MmW3Fs0IaPscm1iqvONJNeA= 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	ikonto.um.bytom.pl Self-signed Fingerprint SHA256: 93f3b674abe86dca9e7baf46a8f53d8e38d886628bbc90510eca7dd24ac5f8ee Pin SHA256: Z3F6E37rsYMIwXXvPYe0MmW3Fs0IaPscm1iqvONJNeA= 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	ikonto.um.bytom.pl Self-signed Fingerprint SHA256: 93f3b674abe86dca9e7baf46a8f53d8e38d886628bbc90510eca7dd24ac5f8ee Pin SHA256: Z3F6E37rsYMIwXXvPYe0MmW3Fs0IaPscm1iqvONJNeA= 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	ikonto.um.bytom.pl Self-signed Fingerprint SHA256: 93f3b674abe86dca9e7baf46a8f53d8e38d886628bbc90510eca7dd24ac5f8ee Pin SHA256: Z3F6E37rsYMIwXXvPYe0MmW3Fs0IaPscm1iqvONJNeA= RSA 2048 bits (e 65537) / SHA256withRSA

Click here to expand

Configuration

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

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 (server has no preference)
TLS_RSA_WITH_AES_128_CBC_SHA (`0x2f`) WEAK	128
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (`0x33`) DH 2048 bits FS WEAK	128
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (`0x41`) WEAK	128
TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA (`0x45`) DH 2048 bits FS WEAK	128
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (`0xc013`) ECDH secp521r1 (eq. 15360 bits RSA) FS WEAK	128
TLS_RSA_WITH_AES_128_CBC_SHA256 (`0x3c`) WEAK	128
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 (`0x67`) DH 2048 bits FS WEAK	128
TLS_RSA_WITH_AES_128_GCM_SHA256 (`0x9c`) WEAK	128
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (`0x9e`) DH 2048 bits FS	128
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 (`0xba`) WEAK	128
TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 (`0xbe`) DH 2048 bits FS WEAK	128
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (`0xc027`) ECDH secp521r1 (eq. 15360 bits RSA) FS WEAK	128
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (`0xc02f`) ECDH secp521r1 (eq. 15360 bits RSA) FS	128
TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256 (`0xc060`) ECDH secp521r1 (eq. 15360 bits RSA) FS	128
TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 (`0xc076`) ECDH secp521r1 (eq. 15360 bits RSA) FS WEAK	128
TLS_RSA_WITH_AES_128_CCM (`0xc09c`) WEAK	128
TLS_DHE_RSA_WITH_AES_128_CCM (`0xc09e`) DH 2048 bits FS	128
TLS_RSA_WITH_AES_128_CCM_8 (`0xc0a0`) WEAK	128
TLS_DHE_RSA_WITH_AES_128_CCM_8 (`0xc0a2`) DH 2048 bits FS	128
TLS_RSA_WITH_AES_256_CBC_SHA (`0x35`) WEAK	256
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (`0x39`) DH 2048 bits FS WEAK	256
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (`0x84`) WEAK	256
TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA (`0x88`) DH 2048 bits FS WEAK	256
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (`0xc014`) ECDH secp521r1 (eq. 15360 bits RSA) FS WEAK	256
TLS_RSA_WITH_AES_256_CBC_SHA256 (`0x3d`) WEAK	256
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 (`0x6b`) DH 2048 bits FS WEAK	256
TLS_RSA_WITH_AES_256_GCM_SHA384 (`0x9d`) WEAK	256
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 (`0x9f`) DH 2048 bits FS	256
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 (`0xc0`) WEAK	256
TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 (`0xc4`) DH 2048 bits FS WEAK	256
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (`0xc028`) ECDH secp521r1 (eq. 15360 bits RSA) FS WEAK	256
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (`0xc030`) ECDH secp521r1 (eq. 15360 bits RSA) FS	256
TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384 (`0xc061`) ECDH secp521r1 (eq. 15360 bits RSA) FS	256
TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 (`0xc077`) ECDH secp521r1 (eq. 15360 bits RSA) FS WEAK	256
TLS_RSA_WITH_AES_256_CCM (`0xc09d`) WEAK	256
TLS_DHE_RSA_WITH_AES_256_CCM (`0xc09f`) DH 2048 bits FS	256
TLS_RSA_WITH_AES_256_CCM_8 (`0xc0a1`) WEAK	256
TLS_DHE_RSA_WITH_AES_256_CCM_8 (`0xc0a3`) DH 2048 bits FS	256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (`0xcca8`) ECDH secp521r1 (eq. 15360 bits RSA) FS	256
TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (`0xccaa`) DH 2048 bits FS	256
# TLS 1.1 (server has no preference)
TLS_RSA_WITH_AES_128_CBC_SHA (`0x2f`) WEAK	128
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (`0x33`) DH 2048 bits FS WEAK	128
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (`0x41`) WEAK	128
TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA (`0x45`) DH 2048 bits FS WEAK	128
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (`0xc013`) ECDH secp521r1 (eq. 15360 bits RSA) FS WEAK	128
TLS_RSA_WITH_AES_256_CBC_SHA (`0x35`) WEAK	256
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (`0x39`) DH 2048 bits FS WEAK	256
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (`0x84`) WEAK	256
TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA (`0x88`) DH 2048 bits FS WEAK	256
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (`0xc014`) ECDH secp521r1 (eq. 15360 bits RSA) FS WEAK	256

Handshake Simulation
Android 4.4.2	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp521r1 FS
Android 5.0.0	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp521r1 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 > http/1.1	TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 ECDH x25519 FS
Android 8.0	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_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_256_GCM_SHA384 ECDH secp521r1 FS
Chrome 49 / XP SP3	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS
Chrome 69 / Win 7 R	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	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 > http/1.1	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS
Firefox 49 / XP SP3	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS
Firefox 62 / Win 7 R	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	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	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
IE 11 / Win 8.1 R	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
IE 11 / Win Phone 8.1 R	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_RSA_WITH_AES_128_CBC_SHA256 No FS
IE 11 / Win Phone 8.1 Update R	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
IE 11 / Win 10 R	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Edge 15 / Win 10 R	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS
Edge 16 / Win 10 R	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS
Edge 18 / Win 10 R	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS
Edge 13 / Win Phone 10 R	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Java 8u161	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 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_256_GCM_SHA384 ECDH secp521r1 FS
OpenSSL 1.0.2s R	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
OpenSSL 1.1.0k R	RSA 2048 (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 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
Safari 7 / iOS 7.1 R	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
Safari 7 / OS X 10.9 R	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
Safari 8 / iOS 8.4 R	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
Safari 8 / OS X 10.10 R	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
Safari 9 / iOS 9 R	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Safari 9 / OS X 10.11 R	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Safari 10 / iOS 10 R	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Safari 10 / OS X 10.12 R	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 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 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Yahoo Slurp Jan 2015	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS
YandexBot Jan 2015	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp521r1 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 : `0x002f`
GOLDENDOODLE	No (more info) TLS 1.2 : `0x002f`
OpenSSL 0-Length	No (more info) TLS 1.2 : `0x002f`
Sleeping POODLE	No (more info) TLS 1.2 : `0x002f`
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)	Yes
OCSP stapling	No
Strict Transport Security (HSTS)	Yes max-age=63072000
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	secp256r1, secp384r1, secp521r1, x25519, x448 (Server has no preference)
SSL 2 handshake compatibility	No
0-RTT enabled	No

HTTP Requests

1 https://ikonto.um.bytom.pl/ (HTTP/1.1 200 OK)
1
	Date	Thu, 11 Sep 2025 02:53:13 GMT
	Server	Microsoft-IIS/10.0
	Strict-Transport-Security	max-age=63072000
	Cache-Control	private
	Content-Type	text/html
	X-XSS-Protection	1; mode=block
	X-Frame-Options	DENY
	X-Content-Type-Options	nosniff
	Content-Security-Policy	connect-src 'self' ;default-src 'none';font-src fonts.gstatic.com;frame-src .google.com;img-src 'self' data: https://pz.gov.pl ;object-src 'none';script-src 'self' .google.com *.gstatic.com website-widgets.pages.dev;style-src 'self' https://fonts.googleapis.com 'unsafe-inline';
	Referrer-Policy	same-origin
	Permissions-Policy	sync-xhr=(), camera=(), microphone=(), usb=()
	X-Permitted-Cross-Domain-Policies	master-only
	Content-Length	2131
	Vary	Accept-Encoding
	Connection	close

Miscellaneous
Test date	Thu, 11 Sep 2025 02:52:54 UTC
Test duration	152.42 seconds
HTTP status code	200
HTTP server signature	Microsoft-IIS/10.0
Server hostname	ikerg.um.bytom.pl

SSL Report v2.4.1

Copyright © 2009-2025 Qualys, Inc. All Rights Reserved. Privacy Policy.	Terms and Conditions
Try Qualys for free! Experience the award-winning Qualys Cloud Platform and the entire collection of Qualys Cloud Apps, including certificate security solutions.