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 yooko.ru
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- yooko.ru
- Valid from
- Mar 25, 2026
- Valid until
- Jun 23, 2026 (expired 27 days ago)
- Public key
- EC 256-bit
- Serial
- 05B40552555456945EAB74A744BB01858862
- SHA-256 fingerprint
- EF:9D:68:69:FD:62:67:CA:53:52:62:5D:0C:98:AE:82:BB:6E:99:FD:F1:B3:33:44:08:DD:DC:94:C9:4F:1D:6F
- Chain
- E8 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.