SSL/TLS Certificate Lookup

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

openja.com

SSL/TLS Certificate

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SSL/TLS Certificate for openja.com

Valid
Issued by (CA)
Google Trust Services
Subject
openja.com
Valid from
Jul 5, 2026
Valid until
Oct 3, 2026 (73 days remaining)
Public key
EC 256-bit
Serial
DEF5411AEC9D64781317E7E462C1F62D
SHA-256 fingerprint
C1:AC:FD:1A:C5:5A:58:4E:E4:B0:14:6E:D8:1B:47:92:CB:5E:53:51:37:E3:76:32:2F:B6:13:B5:24:E2:69:9D
Chain
WE1 → GTS Root R4
Subject Alternative Names (1)
openja.com

Certificate Authority Authorization (CAA)

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