SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
mega-trans.pl
SSL/TLS Certificate
SSL/TLS Certificate for mega-trans.pl
Hostname mismatch- Issued by (CA)
- Asseco Data Systems S.A.
- Subject
- *.alte.pl
- Valid from
- Dec 5, 2025
- Valid until
- Dec 5, 2026 (136 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 2F081F7868246389D344B7994EAC3296
- SHA-256 fingerprint
- 79:D5:DC:68:2C:A2:8F:6A:2C:30:58:44:AD:B2:46:21:03:63:7B:3B:8B:08:42:1A:E7:5D:BF:D1:36:7D:E5:C3
- Chain
- Certum DV TLS G2 R39 CA → Certum Trusted Root CA
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.