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 lunos.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- lunos.cz
- Valid from
- Jun 27, 2026
- Valid until
- Sep 25, 2026 (65 days remaining)
- Public key
- RSA 3072-bit
- Serial
- 0578971EC879B6580B6DE62046F959D39DF6
- SHA-256 fingerprint
- 0A:97:C4:74:6F:C8:3D:D3:46:97:2F:06:0D:27:BA:AB:07:DA:8A:D5:03:C1:0D:8A:6B:84:62:D3:FC:A4:4A:4C
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.