SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jdt-france.fr
SSL/TLS Certificate
SSL/TLS Certificate for jdt-france.fr
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- crm.jdt.de
- Valid from
- Jun 12, 2026
- Valid until
- Sep 10, 2026 (45 days remaining)
- Public key
- EC 256-bit
- Serial
- 0563F2A670B1D0C757E9B63F69BB38EB62E2
- SHA-256 fingerprint
- F6:52:70:56:BB:BC:01:53:98:D1:6B:36:86:17:5C:AA:C4:F6:AF:D7:5A:8A:BC:FE:40:CF:A0:D1:AB:88:DA:48
- Chain
- YE2 → 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.
Never get surprised by jdt-france.fr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch jdt-france.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.