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 ugi.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.ugi.cz
- Valid from
- Jul 1, 2026
- Valid until
- Sep 29, 2026 (70 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 055364916EC0853D5B8ED15C69F9A1993542
- SHA-256 fingerprint
- A7:0D:C2:5D:A3:04:7B:4E:79:EC:72:4B:44:63:5D:16:30:62:81:6A:40:66:F7:6D:D0:F7:3F:64:78:C8:0A:41
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.