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 feiss.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- feiss.ch
- Valid from
- Jun 20, 2026
- Valid until
- Sep 18, 2026 (59 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05EF01CBC47DD4D51ADF208D1FD57F1810E5
- SHA-256 fingerprint
- 93:20:D8:54:85:3A:18:34:3C:1C:7B:6C:61:F4:E7:EE:0E:2F:17:0B:E1:24:30:E6:50:9C:62:98:B8:6C:4B:3E
- 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.