SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
lignier-sas.com
SSL/TLS Certificate
SSL/TLS Certificate for lignier-sas.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- lignier-sas.com
- Valid from
- Sep 14, 2026
- Valid until
- Dec 13, 2026 (89 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0587FDBF685D3BF8B5C85CF7FA27CFAAA97C
- SHA-256 fingerprint
- 0D:A2:B0:32:2B:90:41:DF:67:CD:73:A7:EA:78:F8:5C:FB:70:33:81:0E:54:9D:09:58:27:49:25:6A:F5:21:01
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by lignier-sas.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch lignier-sas.com continuously, notifying you the moment anything moves across all three signals:
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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