What a real browser usually shows
A normal browser reports hardware, graphics, fonts, and operating-system details that naturally fit together for that device.
← How We Detect Bots (All 110+ Signals)
Hardware & GPU Fingerprinting
Normal User
Automated Bot
WHY THIS MATTERS
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WebGL Extension Lie
One of 106 independent checks BotRefund uses to build a reliable picture of whether a visit is human or automated.
What an automated browser often reveals
The WebGL Extension Lie check looks for a mismatch that a real browsing session does not normally create. Virtual machines and spoofed profiles can claim one device while their graphics, fonts, audio, or processor behavior tells another story.
A single anomaly is not a bot verdict.
Privacy tools, travel, corporate networks, and unusual devices can produce unexpected behavior for genuine people. BotRefund keeps this signal as evidence—not a verdict—and cross-checks it against independent browser, network, device, and behavior data.
Independent Evidence
This signal adds one objective, immutable data point to the session audit ledger.
Cross-Checked Context
BotRefund tests whether other hardware, network, and cursor behaviors support the same story.
Edge AI Prediction
Our edge model weighs the complete multi-layer pattern instead of relying on a fragile static rule.