SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
shunjin-kai.or.jp
SSL/TLS Certificate
SSL/TLS Certificate for shunjin-kai.or.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.shunjin-kai.or.jp
- Valid from
- Sep 29, 2026
- Valid until
- Dec 28, 2026 (48 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06209F2A51D0775E1A061B8F0017DFE5CFFE
- SHA-256 fingerprint
- 22:5A:02:8E:7A:08:FC:AC:4D:FE:20:05:3C:08:16:5F:79:8D:AE:4C:12:A1:B9:6E:60:8C:E7:FE:ED:13:F2:15
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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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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