JA4

securitycryptography

Stands for: JA4 TLS client fingerprint (JA4+ suite)

A newer, more robust family of TLS and network fingerprints.

JA4 (part of the JA4+ suite) improves on JA3 with a more structured, harder-to-evade fingerprint of the ClientHello, and adds companion fingerprints for other protocols. It resists the ordering tricks that let clients dodge JA3.

Also known as: ja4, JA4+, JA4 fingerprint

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