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 fcom.ch
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- fcom.ch
- Valid from
- Feb 6, 2025
- Valid until
- May 7, 2025 (expired 442 days ago)
- Public key
- RSA 2048-bit
- Serial
- 0316680EDF14A9819D6E9E8D156AEA3E2B5C
- SHA-256 fingerprint
- 0D:42:C8:2D:4D:E9:0B:64:92:38:DC:A0:DB:43:A5:B4:D5:E9:25:7D:7F:F1:D8:5E:00:05:23:65:00:BA:EF:33
- Chain
- R11 → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).
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TLS certificate
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