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 nikal.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- nikal.cz
- Valid from
- Jul 14, 2026
- Valid until
- Oct 12, 2026 (82 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 054FAEE5163F7DF5F31A8ECE448A26AED661
- SHA-256 fingerprint
- F3:38:68:07:D9:7E:29:30:1A:33:A7:36:0D:8C:25:F7:37:13:02:4D:2E:12:56:8B:E0:EF:11:59:FD:C5:6C:CA
- 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.