SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
edu-japanice.fr
SSL/TLS Certificate
SSL/TLS Certificate for edu-japanice.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- edu-japanice.fr
- Valid from
- Jun 23, 2026
- Valid until
- Sep 21, 2026 (60 days remaining)
- Public key
- RSA 3072-bit
- Serial
- 05DD9CC538FF5BDFC595E84B9B6DC8E10B2D
- SHA-256 fingerprint
- 7B:1F:91:AD:C4:3F:7F:A3:78:71:97:89:2B:02:64:CD:1D:91:4A:56:EC:E7:30:D0:CA:1C:6F:09:A3:83:6F:89
- 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.
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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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