SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jean-claude.fr
SSL/TLS Certificate
SSL/TLS Certificate for jean-claude.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- jean-claude.fr
- Valid from
- Jun 5, 2026
- Valid until
- Sep 3, 2026 (37 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 060A4CBB73196B7BAC497A78A5A179C290C8
- SHA-256 fingerprint
- 0E:19:CD:9F:8C:5E:B7:BD:AC:21:FB:5D:5C:D3:EC:5C:9D:CB:B0:B4:A1:3D:45:EE:69:8A:F6:EA:BA:C2:A5:52
- 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
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
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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