SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kup-online.ch
SSL/TLS Certificate
SSL/TLS Certificate for kup-online.ch
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- kup-online.ch
- Valid from
- Mar 15, 2025
- Valid until
- Jun 13, 2025 (expired 479 days ago)
- Public key
- RSA 2048-bit
- Serial
- 053072934A087F64C9DFE06EE1DBCD95A568
- SHA-256 fingerprint
- 13:02:D5:89:01:20:F2:BD:38:31:1F:E9:FF:7C:FB:67:4B:23:3B:AB:B0:A9:E6:2D:BC:FD:6E:31:80:3A:39:5D
- Chain
- R10 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Sep 25, 2026.
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TLS certificate
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