WebGL Shader Noise

Detection approach

WebGL pixel fidelity anomaly detected. The browser claims to be using a hardware GPU, but a 3D shader rendering test generated a high pixel noise ratio. This mathematically proves the usage of a CPU software renderer (like SwiftShader) in a VM environment.

How this helps detect bots

This signal is assessed with other independent session, browser, and network evidence. A single anomaly is a lead, not a verdict; corroborating anomalies make automated traffic more likely.

Legitimate traffic to consider

Corporate employees browsing via virtual workspaces (Citrix, VMware Horizon, Amazon WorkSpaces).