measuretext-spoof

Spoofs Canvas measureText metrics; they disagree with the OffscreenCanvas measurement of the same text.

botverdict

1.00score

14/185checks fired

Convicting tells 7

br.cdp_runtime_enabledCDP Runtime.enable detected (prototype-chain Proxy ownKeys trap)

br.ch_he_headlessUA-Client-Hints high-entropy brand list reveals HeadlessChrome

br.headless_uaUser-Agent advertises a headless browser

br.measuretext_offscreen_vsCanvas measureText differs between main and OffscreenCanvas — main-thread font hook

br.no_chrome_objectChrome User-Agent but window.chrome is absent

br.permissions_anomalyNotification.permission contradicts the Permissions API state

br.webdriver_getter_tamperedNavigator.prototype.webdriver getter is non-native (prototype patch)