SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
takagamine-kids.ed.jp
SSL/TLS Certificate
SSL/TLS Certificate for takagamine-kids.ed.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- takagamine-kids.ed.jp
- Valid from
- Oct 5, 2026
- Valid until
- Jan 3, 2027 (52 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 051039B4F97AE123485C097671B314F726FD
- SHA-256 fingerprint
- 16:03:18:36:7E:73:0C:05:F7:1B:D1:39:64:6F:51:8B:34:5F:19:4D:87:89:78:68:D2:9A:62:5A:33:30:2E:05
- 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.
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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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