SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kohama-clinic.jp
SSL/TLS Certificate
SSL/TLS Certificate for kohama-clinic.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.kohama-clinic.jp
- Valid from
- Nov 9, 2026
- Valid until
- Feb 7, 2027 (84 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0571134B080AE949E7C8CC856A0DBA3D8BB6
- SHA-256 fingerprint
- CF:99:71:41:49:75:C8:0F:F3:20:A1:09:6C:72:03:E8:5F:88:69:16:39:A4:6F:B5:08:39:A9:22:3C:C0:F9:1C
- Chain
- YR2 → Root YR → ISRG Root X1
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 Sep 13, 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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