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 actiu.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- actiu.cz
- Valid from
- Jun 26, 2026
- Valid until
- Sep 24, 2026 (64 days remaining)
- Public key
- EC 256-bit
- Serial
- 05934A7251A78722F1DC7A5C3B268D289517
- SHA-256 fingerprint
- 39:BB:06:F7:F8:3A:BD:C8:7E:D5:96:F9:59:9A:D7:16:E9:B6:13:61:5B:CB:0E:85:DC:62:7E:26:19:4E:79:49
- 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.