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 pierre-lannier.fr

Expired
Issued by (CA)
DigiCert Inc
Subject
www.pierre-lannier.fr
Valid from
May 17, 2024
Valid until
Jun 9, 2025 (expired 493 days ago)
Public key
RSA 2048-bit
Serial
068CB4049A24833E87529868A151BC43
SHA-256 fingerprint
1F:92:7E:AA:B0:2E:1A:84:60:E2:AC:E9:44:0A:EE:F2:4C:87:39:CC:F1:23:4D:4E:B1:42:29:77:17:DA:03:63
Chain
RapidSSL TLS RSA CA G1 → DigiCert Global Root G2
Subject Alternative Names (2)
pierre-lannier.fr, www.pierre-lannier.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 Aug 27, 2026.

Never get surprised by pierre-lannier.fr's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch pierre-lannier.fr 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.

Monitor this certificate free

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