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 comotec.co.jp

Valid
Issued by (CA)
Let's Encrypt
Subject
comotec.co.jp
Valid from
Jun 14, 2026
Valid until
Sep 12, 2026 (53 days remaining)
Public key
RSA 2048-bit
Serial
0660D32E96B3F07868DF22DEF2593928690F
SHA-256 fingerprint
D5:CC:94:C3:31:0A:78:5D:FE:A7:7C:10:B9:39:61:EB:DB:50:13:3E:67:BE:29:2E:43:B2:A6:D4:85:85:F5:27
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
comotec.co.jp, www.comotec.co.jp

Certificate Authority Authorization (CAA)

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