SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ohkuma-iin.jp
SSL/TLS Certificate
SSL/TLS Certificate for ohkuma-iin.jp
Expiring soon- Issued by (CA)
- Let's Encrypt
- Subject
- ohkuma-iin.jp
- Valid from
- May 27, 2026
- Valid until
- Aug 25, 2026 (15 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05A3D18075E1FA5553B9EDC15832D1871D6D
- SHA-256 fingerprint
- D1:45:36:76:4B:F3:7C:73:B4:A0:EB:9D:39:52:84:EC:B4:DC:13:5A:AF:B3:D0:C2:60:A5:14:D2:F3:5A:50:21
- Chain
- R12 → 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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