SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

segiken.jp

SSL/TLS Certificate

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SSL/TLS Certificate for segiken.jp

Valid
Issued by (CA)
Let's Encrypt
Subject
segiken.jp
Valid from
Jul 9, 2026
Valid until
Oct 7, 2026 (78 days remaining)
Public key
RSA 2048-bit
Serial
05D9490F4F032775B8417623B68F3C878435
SHA-256 fingerprint
84:7E:B8:0A:8A:B2:3F:B5:D2:B5:D7:AC:8C:E3:64:80:1F:C3:5C:05:6F:D0:53:85:05:DD:38:F6:FB:59:45:B9
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
segiken.jp, www.segiken.jp

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.