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 ec-m.fr

Hostname mismatch
Issued by (CA)
Hellenic Academic and Research Institutions CA
Subject
*.centrale-marseille.fr
Valid from
Sep 9, 2025
Valid until
Sep 9, 2026 (3 days remaining)
Public key
RSA 4096-bit
Serial
5D6C608E55DCD13D230E90B1D35D65F2
SHA-256 fingerprint
D4:3B:3B:C3:24:1D:04:99:F8:BC:74:3A:7D:0B:0B:77:10:B2:75:13:D0:93:00:B4:E1:0D:B9:0F:C7:37:9F:07
Chain
GEANT TLS RSA 1 → HARICA TLS RSA Root CA 2021 → Hellenic Academic and Research Institutions RootCA 2015
Subject Alternative Names (2)
*.centrale-marseille.fr, centrale-marseille.fr

Certificate Authority Authorization (CAA)

CAA restricts issuance to harica.gr; we couldn't map the serving CA (Hellenic Academic and Research Institutions CA) to one of these identifiers.

This certificate has been served since Aug 22, 2026.

Never get surprised by ec-m.fr's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec-m.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.