SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
its-office.jp
SSL/TLS Certificate
SSL/TLS Certificate for its-office.jp
Valid- Issued by (CA)
- Amazon
- Subject
- its-office.jp
- Valid from
- Oct 5, 2026
- Valid until
- Apr 20, 2027 (160 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0E2C4258411288BE978D40929E4B47CE
- SHA-256 fingerprint
- 46:19:10:B9:2A:A2:42:AE:A9:78:22:FD:13:67:8D:DA:BF:81:35:84:B8:D1:5C:C7:12:86:84:A8:7B:34:59:DC
- 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.
We've observed 1 previous certificate for this host. This certificate has been served since Oct 5, 2026.
Never get surprised by its-office.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch its-office.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, 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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