SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
neptu-h2.ch
SSL/TLS Certificate
SSL/TLS Certificate for neptu-h2.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- neptu-h2.ch
- Valid from
- Jun 17, 2026
- Valid until
- Sep 15, 2026 (54 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05C325596210998FC001C373DD106B9BB4FC
- SHA-256 fingerprint
- C3:24:E7:FA:42:BC:86:42:74:74:2F:E6:3D:AD:50:51:5F:85:13:25:86:C3:66:AD:25:D7:93:6F:D5:53:F5:F3
- 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.
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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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