The developers behind Afina didn't set out to build another antidetect browser. They started by asking why antifraud systems easily detect browsers that appear fine on the surface. Their investigation shifted focus from fingerprints to network behavior, revealing that WebRTC and QUIC are the real battlegrounds for evasion.

Many tools treat WebRTC as a simple checkbox to disable or mask. However, it's a complex real-time networking stack with strict ICE candidates and STUN behavior. Routing WebRTC through servers breaks this flow, making it instantly detectable. Afina's hard decision was to run everything inside the browser using the real Chromium stack, rejecting server-side hacks.

Similarly, modern browsers prefer QUIC (HTTP/3) and UDP, not just TCP. Many security-focused browsers still tunnel everything over TCP SOCKS proxies, which is convenient but highly detectable. Afina committed to native UDP support and a real QUIC handshake, requiring a rewritten networking layer. The lesson: perfect fingerprints fail without authentic behavior.