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 d-ja.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- d-ja.fr
- Valid from
- Aug 11, 2026
- Valid until
- Nov 9, 2026 (24 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05854EE81560CB1952B4DF105942BDD44011
- SHA-256 fingerprint
- E3:8A:D9:F3:DA:30:12:54:41:0D:60:50:B5:E5:C4:55:00:B4:60:86:D3:72:87:28:91:9B:BA:4B:6B:6B:D8:6A
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 21, 2026.
Never get surprised by d-ja.fr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch d-ja.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.
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