SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for wladcajezykow.pl

Hostname mismatch
Issued by (CA)
Asseco Data Systems S.A.
Subject
*.cyberadmin.cyber-folks.pl
Valid from
Jul 15, 2026
Valid until
Jan 30, 2027 (193 days remaining)
Public key
RSA 4096-bit
Serial
417EEF1D542B02EE34C99A6F8B688D64
SHA-256 fingerprint
03:D2:2A:1D:D8:09:79:46:90:6D:84:C6:83:75:2A:1C:32:8F:CB:42:2E:CA:03:5D:32:19:1A:FC:AE:85:AD:B8
Chain
Certum DV TLS G2 R39 CA → Certum Trusted Root CA → Certum Trusted Network CA
Subject Alternative Names (2)
*.cyberadmin.cyber-folks.pl, cyberadmin.cyber-folks.pl

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.