SSL/TLS Certificate Lookup

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

SSL/TLS Certificate for ko-nan.co.jp

Valid
Issued by (CA)
Let's Encrypt
Subject
www.ko-nan.co.jp
Valid from
May 30, 2026
Valid until
Aug 28, 2026 (37 days remaining)
Public key
RSA 2048-bit
Serial
0560263DE446246A43972BC3CF0325E93FFB
SHA-256 fingerprint
40:93:57:81:82:ED:94:4F:08:C3:97:00:55:16:E3:0F:45:F9:5E:0D:7A:5C:7A:05:60:5D:41:13:B8:00:7B:6C
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
ko-nan.co.jp, www.ko-nan.co.jp

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

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