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 akin.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- akin.cz
- Valid from
- Jun 12, 2026
- Valid until
- Sep 10, 2026 (50 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 062E1BE7C021CD3E3AD5DCAAB03D2F94184B
- SHA-256 fingerprint
- 02:F2:84:00:0A:F1:54:8D:42:DB:22:18:85:2A:E0:15:80:0E:45:03:74:ED:FF:86:B8:CD:AE:7E:DA:6C:74:29
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).