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 jb-a.ch
Expiring soon- Issued by (CA)
- Let's Encrypt
- Subject
- jb-a.ch
- Valid from
- May 19, 2026
- Valid until
- Aug 17, 2026 (21 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0525454A17EE19D620A60E2819B845B62DC6
- SHA-256 fingerprint
- D2:84:63:A0:AD:FD:82:E9:E5:52:65:6A:7B:E2:A0:80:FA:0B:C4:C4:E2:00:E1:05:A2:5F:4F:2B:08:1C:29:26
- Chain
- R12 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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DNS changes
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TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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