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 blspolska.pl

Valid
Issued by (CA)
Asseco Data Systems S.A.
Subject
blspolska.pl
Valid from
Apr 17, 2026
Valid until
Nov 2, 2026 (103 days remaining)
Public key
RSA 4096-bit
Serial
44156F7295C97D45C3BD840B92FF3A55
SHA-256 fingerprint
21:F4:D5:04:02:90:ED:1B:52:96:40:B8:B3:F8:F4:6C:48:09:AF:3D:AC:58:8C:42:5A:D9:DA:4D:52:98:27:5C
Chain
Certum DV TLS G2 R39 CA → Certum Trusted Root CA
Subject Alternative Names (2)
blspolska.pl, www.blspolska.pl

Certificate Authority Authorization (CAA)

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