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 lexo.fr
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- lexo.fr
- Valid from
- May 17, 2026
- Valid until
- Aug 15, 2026 (expired 19 days ago)
- Public key
- EC 256-bit
- Serial
- 05EEBCB5139D56EFDB215690604A09167DEF
- SHA-256 fingerprint
- 67:51:AC:1A:03:C6:2A:27:3C:DC:F6:69:AA:C5:AE:39:3F:99:1B:4B:C5:8A:5D:32:68:FC:A7:D8:8A:DF:B4:DB
- Chain
- E7 → 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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