SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
authentic-s.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for authentic-s.co.jp
Valid- Issued by (CA)
- Japan Registry Services Co., Ltd.
- Subject
- authentic-s.co.jp
- Valid from
- Jun 19, 2026
- Valid until
- Nov 30, 2026 (53 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 1B233053AF887DF169453BD6C3639244
- SHA-256 fingerprint
- 0C:8A:0E:66:7A:18:53:D1:96:D8:BB:A5:FB:02:09:1C:10:C6:92:BA:42:0D:7C:57:CF:F0:D3:22:4C:BB:B9:4C
- 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 6, 2026.
Never get surprised by authentic-s.co.jp's certificate expiring
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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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