← All bot detection signals

3. Hardware & GPU Fingerprinting

Blank GPU Canvas

Detection approach

Canvas rendering anomaly detected. The browser successfully executed a geometry render request, but the output was 100% empty or completely transparent. This indicates a headless browser attempting to mask the absence of a real GPU.

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

Users running aggressive script blocks, ad-blockers, or privacy extensions blocking canvas.

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