SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gaiffier-conseils.fr
SSL/TLS Certificate
SSL/TLS Certificate for gaiffier-conseils.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- gaiffier-conseils.fr
- Valid from
- Aug 31, 2026
- Valid until
- Nov 29, 2026 (80 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06B037026782FFFA1A4DB36C7CE7A9585906
- SHA-256 fingerprint
- 8E:C4:2B:E5:D2:43:A6:5C:73:22:66:31:3A:39:E0:71:DE:0B:67:78:BC:CC:18:C7:D4:C8:2B:09:32:90:5F:BD
- 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
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
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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