Spoofing Detection

Detect fingerprint tampering by cross-referencing browser signals for inconsistencies.

Usage

const fp = await neoprint.get()
const spoof = neoprint.detectSpoofing(fp)

console.log(spoof.isLikely)  // true / false
console.log(spoof.score)     // 0.0 – 1.0
console.log(spoof.signals)   // ['gpu_vendor_mismatch', ...]

Detection Rules

Rule	What it catches
gpu_vendor_mismatch	WebGL vendor differs from WebGPU vendor
platform_ua_mismatch	Platform says Mac but UA says Windows
webdriver_detected	navigator.webdriver is true
touchpoints_screen_mismatch	Desktop screen with mobile touch points
memory_concurrency_mismatch	16 cores but 2GB RAM
canvas_blocked	Canvas blocked but WebGL works
audio_blocked	Audio context unavailable
too_many_fonts	100+ fonts detected (font spoofing)
timer_precision_anomaly	Timer rounded to 100ms (resistFingerprinting)