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 fdnas.cz
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- www.skalnioblasti.cz
- Valid from
- May 24, 2026
- Valid until
- Aug 22, 2026 (31 days remaining)
- Public key
- RSA 3072-bit
- Serial
- 0660A90CA3D962119106FBEEAEFD9E1D67B8
- SHA-256 fingerprint
- 41:1B:F9:8D:9D:02:E3:93:91:92:7F:06:9B:B3:2F:BE:CE:88:1B:8A:B6:3D:60:7C:37:5C:F4:67:BC:FB:25:DC
- Chain
- R12 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.