SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
taisei-hs.ac.jp
SSL/TLS Certificate
SSL/TLS Certificate for taisei-hs.ac.jp
Valid- Issued by (CA)
- Japan Registry Services Co., Ltd.
- Subject
- www.taisei-hs.ac.jp
- Valid from
- Sep 1, 2025
- Valid until
- Sep 30, 2026 (43 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 489F2C2FDDAA3A4C7499BCB62A95E6DC
- SHA-256 fingerprint
- 74:38:78:01:FA:6E:8C:53:A1:6C:05:45:C4:E2:B1:70:73:97:93:9F:62:B0:3C:19:80:6A:F7:91:8D:EC:3C:2A
- Chain
- JPRS Domain Validation Authority - 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
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DNS changes
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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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