SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
i-kyokuto.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for i-kyokuto.co.jp
Valid- Issued by (CA)
- Japan Registry Services Co., Ltd.
- Subject
- www.i-kyokuto.co.jp
- Valid from
- Aug 7, 2026
- Valid until
- Jan 31, 2027 (78 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 1A2F32FD316582528CAF91CB2B426E99
- SHA-256 fingerprint
- 74:0D:75:DC:1A:CF:E7:55:12:7B:BB:60:F4:08:A5:F4:F2:D4:7A:4B:43:B6:70:B6:02:21:B7:48:84:F6:23:46
- 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 Oct 18, 2026.
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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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