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 patom.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- patom.ch
- Valid from
- Jun 23, 2026
- Valid until
- Sep 21, 2026 (61 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05E9AE11951D79C996FD627FCC08E4D134B1
- SHA-256 fingerprint
- 20:46:1A:BB:19:EC:2C:CA:21:54:5A:8A:BF:97:5D:F0:FD:38:E7:99:33:68:87:43:1E:91:CD:A1:A6:41:AC:AE
- 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.