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 uksp.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- uksp.cz
- Valid from
- Jun 5, 2026
- Valid until
- Sep 3, 2026 (43 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 0616B7FB763FC377BFAF1D9FDA7B384282FD
- SHA-256 fingerprint
- A9:D0:85:AC:D9:56:F4:B3:79:A9:A0:DE:A8:6B:8B:67:8F:9B:D2:35:97:B0:C2:91:54:41:E6:D0:3C:7D:34:BC
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.