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 daisou-giken.com

Valid
Issued by (CA)
Let's Encrypt
Subject
daisou-giken.com
Valid from
Oct 6, 2026
Valid until
Jan 4, 2027 (76 days remaining)
Public key
RSA 2048-bit
Serial
06DBC2954ABABBA3064C7293F22802890B04
SHA-256 fingerprint
17:89:8F:B1:94:C0:62:EB:D0:EB:24:04:44:1F:92:47:58:9B:6F:64:27:9A:7E:7A:FA:83:3F:19:C2:FF:50:44
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (4)
daisou-giken.com, mail.daisou-giken.com, webmail.daisou-giken.com, www.daisou-giken.com

Certificate Authority Authorization (CAA)

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

This certificate has been served since Oct 15, 2026.

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TLS certificate

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