SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jp-staff.jp
SSL/TLS Certificate
SSL/TLS Certificate for jp-staff.jp
Valid- Issued by (CA)
- Amazon
- Subject
- jp-staff.jp
- Valid from
- Aug 25, 2026
- Valid until
- Mar 10, 2027 (116 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0813787F4ABCD3668F57F052D41FABEA
- SHA-256 fingerprint
- A6:F3:FF:36:D4:73:C4:E0:34:0C:7B:BD:99:2B:67:B1:D0:52:4D:15:77:6A:41:BC:98:D7:C8:46:33:D3:C9:20
- Chain
- Amazon RSA 2048 M04 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
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.
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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, 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.
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