WEBGL_debug_shaders

The WEBGL_debug_shaders extension is part of the WebGL API and exposes the getTranslatedShaderSource() method which returns translated shader source code as compiled by the ANGLE layer. Useful for debugging GLSL shaders, but is restricted to privileged contexts and disabled in most browsers for security/privacy reasons. Available in both WebGL1 and WebGL2, but typically not accessible.

Modern anti-bot systems verify WebGL extensions to detect automated browsers. Mismatches between GPU hardware and available extensions are strong bot signals.

What Anti-Bot Systems Check:

• Extension availability: Does the reported GPU support these extensions?
• Extension combinations: Are the extensions typical for this GPU model?
• Consistency checks: Do reported extensions match other GPU signals?
• Missing extensions: Are expected extensions for this GPU absent?