SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
itart-longueville.fr
SSL/TLS Certificate
SSL/TLS Certificate for itart-longueville.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- itart-longueville.fr
- Valid from
- Sep 16, 2026
- Valid until
- Dec 15, 2026 (32 days remaining)
- Public key
- EC 256-bit
- Serial
- 06317F5777A8C5923352077428A9FE2D51EF
- SHA-256 fingerprint
- BA:84:8C:7E:6A:23:52:11:48:3E:18:37:A7:AE:73:AF:E4:26:3E:2D:DE:19:D2:6F:B2:7E:A9:2B:FD:9C:20:41
- Chain
- YE1 → Root YE → ISRG Root X2 → ISRG Root X1
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 Nov 10, 2026.
Never get surprised by itart-longueville.fr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch itart-longueville.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, 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.