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 kopo.sk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- kopo.sk
- Valid from
- Jun 8, 2026
- Valid until
- Sep 6, 2026 (46 days remaining)
- Public key
- EC 256-bit
- Serial
- 06D6FE2F455043C074E5A75F6A6133FAD800
- SHA-256 fingerprint
- 57:11:84:7C:42:B2:A7:8B:00:51:82:52:F2:64:B5:C3:A9:91:89:E9:88:A9:92:23:11:42:78:8C:6C:9E:2A:86
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.