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 air-m.fr
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- air-m.fr
- Valid from
- Feb 20, 2026
- Valid until
- May 21, 2026 (expired 107 days ago)
- Public key
- RSA 2048-bit
- Serial
- 06B8A28E0ED9D20507AC1AF1B15DBC27A630
- SHA-256 fingerprint
- 68:13:F3:71:68:19:44:99:62:7F:05:1A:13:23:37:48:0C:3A:D9:1E:00:42:82:53:F9:26:6F:82:84:3E:B3:2D
- 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
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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