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 cool-gadget.fr

Self-signed
Issued by (CA)
addon-cool-gadget.fr.befa5180.odns.fr
Subject
addon-cool-gadget.fr.befa5180.odns.fr
Valid from
Feb 3, 2024
Valid until
Feb 2, 2025 (expired 641 days ago)
Public key
RSA 2048-bit
Serial
01A02CC558
SHA-256 fingerprint
7C:59:D2:1C:96:61:BA:07:BB:05:4B:DA:27:6D:1A:9D:91:25:F4:F5:89:E2:9A:8F:B2:90:76:3D:CF:8E:47:C7
Chain
addon-cool-gadget.fr.befa5180.odns.fr
Subject Alternative Names (11)
addon-cool-gadget.fr.befa5180.odns.fr, autodiscover.cool-gadget.fr, cool-gadget.fr, cpanel.cool-gadget.fr, cpcalendars.cool-gadget.fr, cpcontacts.cool-gadget.fr, mail.cool-gadget.fr, webdisk.cool-gadget.fr, webmail.cool-gadget.fr, www.addon-cool-gadget.fr.befa5180.odns.fr, www.cool-gadget.fr

Certificate Authority Authorization (CAA)

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

This certificate has been served since Oct 23, 2026.

Never get surprised by cool-gadget.fr's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch cool-gadget.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.