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 mm2000.pl

Hostname mismatch
Issued by (CA)
Asseco Data Systems S.A.
Subject
procell.pl
Valid from
May 19, 2026
Valid until
Dec 4, 2026 (136 days remaining)
Public key
RSA 2048-bit
Serial
2583AAF0A052CA2A11202A8A1555F183
SHA-256 fingerprint
25:66:0D:45:EE:D4:52:4D:B8:78:7C:D1:39:BE:35:6E:11:9C:F0:76:DD:B7:C3:44:AE:E3:BD:44:64:62:63:A0
Chain
Certum DV TLS G2 R39 CA → Certum Trusted Root CA
Subject Alternative Names (2)
procell.pl, www.procell.pl

Certificate Authority Authorization (CAA)

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