SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
cssg-job.jp
SSL/TLS Certificate
SSL/TLS Certificate for cssg-job.jp
Valid- Issued by (CA)
- Amazon
- Subject
- cssg-job.jp
- Valid from
- Jul 14, 2026
- Valid until
- Jan 27, 2027 (116 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 09A9008C16181B9A00FFE2459530B0B6
- SHA-256 fingerprint
- 68:6D:1B:A2:96:DF:1B:6A:B7:D2:95:29:05:B5:51:63:E0:6D:95:58:A7:9B:08:BA:41:D2:23:05:3E:94:6D:FA
- Chain
- Amazon RSA 2048 M01 → 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 Sep 24, 2026.
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Uptime
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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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