browser fingerprinting is a technique used to identify individual users based on the unique characteristics of their web browser and system configurations. This can be used for various purposes, including user tracking, fraud detection, and personalizing user experiences. The idea is that the combination of details about a user's system can be unique enough to effectively serve as a "fingerprint" for that user. Some of these details can include: User agent: This information includes the browser type, version, and the operating system of the user. Screen resolution: The pixel dimensions of the user's screen. Installed plugins: What browser plugins and their versions the user has installed. Timezone: The user's system timezone. Fonts: What system fonts are installed. Do Not Track status: Whether the user has the Do Not Track setting enabled. Canvas fingerprinting: This technique draws a hidden graphic in the browser and uses minute differences in rendering to create a fingerprint. WebGL fingerprinting: Similar to canvas, but using 3D rendering. AudioContext fingerprinting: Uses the audio stack to create a fingerprint. Cookie settings: Whether the user allows cookies, and what kind. Hardware and software configurations: Such as the number of CPU cores, GPU information, etc.
1function generateFingerprint() {
2 var fingerprint = {
3 userAgent: navigator.userAgent,
4 language: navigator.language,
5 colorDepth: screen.colorDepth.toString(),
6 screenWidth: screen.width.toString(),
7 screenHeight: screen.height.toString(),
8 timeZone: new Date().getTimezoneOffset().toString()
9 };
10
11 // Stringify the fingerprint data and then encode it as a base64 string
12 var fingerprintJson = JSON.stringify(fingerprint);
13 var fingerprintBase64 = btoa(unescape(encodeURIComponent(fingerprintJson)));
14
15 return fingerprintBase64;
16}
17
18console.log(generateFingerprint());
19Created on 6/9/2023