SSL/TLS Certificate Lookup

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

okcup.com

SSL/TLS Certificate

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SSL/TLS Certificate for okcup.com

Valid
Issued by (CA)
Let's Encrypt
Subject
okcup.com
Valid from
Jun 16, 2026
Valid until
Sep 14, 2026 (55 days remaining)
Public key
RSA 2048-bit
Serial
053BC06B5A61A320CC0419D7CB4314A7F3B1
SHA-256 fingerprint
D7:54:12:69:61:30:A1:07:D4:2D:96:D9:39:28:60:7D:53:0F:F3:91:51:37:34:A0:91:A0:1D:3B:E6:94:51:91
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
okcup.com, www.okcup.com

Certificate Authority Authorization (CAA)

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