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 ayzu.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- ayzu.cz
- Valid from
- Jun 2, 2026
- Valid until
- Aug 31, 2026 (41 days remaining)
- Public key
- EC 256-bit
- Serial
- 0512604CB231EE4087FF635238603E8A98CA
- SHA-256 fingerprint
- 67:E4:28:DB:92:92:A0:5E:D8:3F:16:65:07:B2:43:45:E4:66:0E:0D:78:BD:FC:B0:7C:E3:F6:28:8A:4F:40:A5
- Chain
- YE1 → 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.