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 actsud.fr

Valid
Issued by (CA)
Trust Provider B.V.
Subject
www.actsud.fr
Valid from
Dec 2, 2025
Valid until
Dec 21, 2026 (39 days remaining)
Public key
RSA 4096-bit
Serial
0B67170481D5E5343B935A3C09A67EB6
SHA-256 fingerprint
9A:A3:EE:3F:A7:B5:C0:40:98:29:9C:82:5A:1D:68:51:64:0E:52:DB:63:A1:EB:6B:AE:21:3E:2A:85:52:1C:EF
Chain
Trust Provider B.V. TLS RSA CA G1 → DigiCert Global Root G2
Subject Alternative Names (2)
actsud.fr, www.actsud.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 10, 2026.

Never get surprised by actsud.fr's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch actsud.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.