How WebRTC Detection Works

How WebRTC Works

  • The website sends a regular TCP request from the browser (or anti-detect browser).

  • The anti-fraud system responds and injects a script to initiate a STUN request.

  • The browser makes a STUN request over UDP, bypassing the proxy and revealing the real IP address - since, as we know, the proxy or anti-detect browser may not support UDP.

  • If the IP address of the TCP connection and the UDP request differ, the user is exposed for using a proxy.

    Image and information kindly taken from the article Zl0yTeam
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