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 ciena.pl
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- ciena.pl
- Valid from
- Jul 3, 2026
- Valid until
- Oct 1, 2026 (72 days remaining)
- Public key
- EC 256-bit
- Serial
- 05B09CDA51D6E5F016652A5924DDE2A81531
- SHA-256 fingerprint
- 64:63:78:AA:40:F4:44:97:A3:D5:10:FD:C2:53:7E:96:49:8E:FC:0E:E9:A8:08:10:CC:17:FB:E0:0C:20:E1:8D
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.