Local scan — your data stays on your device
Every fingerprint check runs entirely in your browser. Scan results, detected signals, and risk scores are never uploaded to our servers or shared with third parties as part of the scan itself.
Google Analytics
We load Google Analytics (GA4) to collect anonymous page-view statistics — which pages are visited, approximate geography, and browser type. Analytics does not receive your scan results or fingerprint data.
Google AdSense
This site displays ads through Google AdSense. Google and its partners may use cookies or similar technologies to serve ads, measure ad performance, and (depending on your region and ad settings) show personalized or non-personalized advertising. You can manage ad personalization through Google Ads Settings or your browser's cookie controls.
WebRTC STUN probing
During the optional WebRTC leak check, your browser may briefly connect to a public STUN server to gather ICE candidates. This is standard WebRTC behavior and does not send your full scan report anywhere.
Privacy requests
For privacy-related questions or requests, contact linxiaotao1993@gmail.com.