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 nazwa.pl
Valid- Issued by (CA)
- Asseco Data Systems S.A.
- Subject
- nazwa.pl
- Valid from
- Mar 4, 2026
- Valid until
- Mar 4, 2027 (226 days remaining)
- Public key
- EC 384-bit
- Serial
- 0CAEB0E89DFA790F2D66A0282D11386A
- SHA-256 fingerprint
- 04:75:75:B4:7C:74:8D:D8:F7:7A:F1:83:5A:2A:EE:79:F4:B9:77:4C:D6:81:F5:26:CC:C7:D1:60:D2:17:22:D7
- Chain
- Certum EV TLS G2 E39 CA → Certum EC-384 CA
Certificate Authority Authorization (CAA)
CAA restricts issuance to certum.pl, sectigo.com; we couldn't map the serving CA (Asseco Data Systems S.A.) to one of these identifiers.
This certificate has been served since Jul 20, 2026.