SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
j-navigate.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for j-navigate.co.jp
Valid- Issued by (CA)
- Google Trust Services
- Subject
- j-navigate.co.jp
- Valid from
- Jul 24, 2026
- Valid until
- Oct 22, 2026 (48 days remaining)
- Public key
- EC 256-bit
- Serial
- 82A21FBD7431EC8113928D8D4018EAF8
- SHA-256 fingerprint
- 23:8D:32:85:FC:4E:34:BB:AF:FB:56:0B:B9:98:8E:BA:09:67:A4:10:27:DF:D8:DF:2F:6C:C3:59:1B:83:18:53
- Chain
- WE1 → GTS Root R4
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 Sep 1, 2026.
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This is today's certificate. Turn on monitoring and we'll watch j-navigate.co.jp 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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