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 cga-tech.fr

Valid
Issued by (CA)
Let's Encrypt
Subject
cga-tech.fr
Valid from
Sep 29, 2026
Valid until
Dec 28, 2026 (56 days remaining)
Public key
EC 256-bit
Serial
06FB91ECAF6493AB828CE74286735238B4E5
SHA-256 fingerprint
27:16:E6:B5:25:CE:6F:CE:3D:E9:C6:CC:39:AE:9C:9A:6E:73:EB:1D:FF:A5:51:55:0E:97:6F:1D:D5:58:55:9F
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
cga-tech.fr, www.cga-tech.fr

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

Never get surprised by cga-tech.fr's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch cga-tech.fr continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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, CNAME, TXT 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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.