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 jsba.or.jp

Valid
Issued by (CA)
Cybertrust Japan Co., Ltd.
Subject
www.jsba.or.jp
Valid from
May 25, 2026
Valid until
Nov 27, 2026 (63 days remaining)
Public key
RSA 2048-bit
Serial
32A99DB02D81304017B7A28670A70CE0AEE70A94
SHA-256 fingerprint
30:0A:26:55:72:C8:15:19:01:3B:7A:BA:2F:15:B4:11:12:34:64:2C:EB:DC:FA:54:67:72:B0:CC:16:95:D6:F1
Chain
Cybertrust Japan SureServer CA G4
Subject Alternative Names (2)
jsba.or.jp, www.jsba.or.jp

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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