SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
seiban-sekkei.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for seiban-sekkei.co.jp
Hostname mismatch- Issued by (CA)
- Japan Registry Services Co., Ltd.
- Subject
- www.seiban-sekkei.co.jp
- Valid from
- Jun 22, 2026
- Valid until
- Nov 30, 2026 (130 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 2479C05B21DEE2A720A301D01331A8D8
- SHA-256 fingerprint
- 9D:ED:C9:57:A5:DB:66:88:A5:59:B0:AB:12:5C:25:AA:B1:B8:F0:A7:CE:81:26:E6:D4:C5:16:59:48:8F:BE:67
- 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 Jul 23, 2026.
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Uptime
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DNS changes
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TLS certificate
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