SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kyouei-3.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for kyouei-3.co.jp
Hostname mismatch- Issued by (CA)
- Japan Registry Services Co., Ltd.
- Subject
- *.it-partner.jp
- Valid from
- Jul 27, 2026
- Valid until
- Dec 31, 2026 (53 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 63D06802B7DAC78547A4E4918B1E8A9C
- SHA-256 fingerprint
- 3D:27:6E:82:AC:6F:AB:FB:18:D0:C6:0A:10:80:3B:8C:91:65:9A:36:AF:95:81:AD:E6:72:26:11:B0:A2:F4:70
- Chain
- JPRS DV RSA CA 2024 G1 → SECOM TLS RSA Root CA 2024
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 Nov 7, 2026.
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Uptime
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DNS changes
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TLS certificate
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