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 datascience-paris-saclay.fr

Expired
Issued by (CA)
TERENA
Subject
www.datascience-paris-saclay.fr
Valid from
Jun 30, 2017
Valid until
Jul 8, 2020 (expired 2238 days ago)
Public key
RSA 2048-bit
Serial
0C91870CE325B24EA1E3CCB440D1D848
SHA-256 fingerprint
45:E3:01:4B:88:A3:51:E3:5D:92:64:2D:BD:A4:83:F1:43:82:4C:0D:69:E0:B7:56:41:3D:13:E0:47:2F:7B:5E
Chain
Subject Alternative Names (2)
datascience-paris-saclay.fr, www.datascience-paris-saclay.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 7, 2026.

Never get surprised by datascience-paris-saclay.fr's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch datascience-paris-saclay.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.