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 otik.pl
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- mail.otik.pl
- Valid from
- Jul 16, 2026
- Valid until
- Oct 14, 2026 (85 days remaining)
- Public key
- EC 384-bit
- Serial
- 058BEF0C8A409FC73B10D9063F7A77E82D1B
- SHA-256 fingerprint
- 95:DC:FD:81:3E:A6:70:00:B2:90:3C:E0:29:7C:13:E5:B3:F5:9B:90:BC:8F:5A:39:C0:F3:FF:99:D7:53:06:CD
- 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.