SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
itc-job.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for itc-job.co.jp
Expired- Issued by (CA)
- Cybertrust Japan Co., Ltd.
- Subject
- www.itc-job.co.jp
- Valid from
- Nov 4, 2025
- Valid until
- Nov 6, 2026 (expired 5 days ago)
- Public key
- RSA 2048-bit
- Serial
- 4951D69CDEC6B67F06361D7A0B4BE37510B43265
- SHA-256 fingerprint
- 85:59:54:AA:E1:55:41:D6:DD:3C:5B:B4:B2:9C:68:B2:BC:0F:E6:DD:38:08:3B:8B:FC:DA:E2:11:34:D4:89:22
- Chain
- Cybertrust Japan SureServer CA G4
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, 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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