https://www.moetz.gv.at/system/statV.1789655742/Javascript/fingerprint.js

1function getBrowserFingerprint() {
2    let fingerprint = "";
3
4    fingerprint += navigator.userAgent;
5    fingerprint += `${window.screen.width}x${window.screen.height}`;
6    fingerprint += String(new Date().getTimezoneOffset());
7
8    const fonts = ["Arial", "Helvetica", "Times New Roman"];
9    for (let i = 0; i < fonts.length; i++) {
10        const font = fonts[i];
11        if ((document.documentElement.style.fontFamily || "").indexOf(font) !== -1) {
12            fingerprint += font;
13        }
14    }
15
16    for (let i = 0; i < navigator.plugins.length; i++) {
17        fingerprint += navigator.plugins[i].name;
18    }
19
20    try {
21        const canvas = document.createElement("canvas");
22        const ctx = canvas.getContext("2d");
23        const txt = "Browser Fingerprint";
24
25        ctx.textBaseline = "top";
26        ctx.font = "14px 'Arial'";
27        ctx.textBaseline = "alphabetic";
28        ctx.fillStyle = "#f60";
29        ctx.fillRect(125, 1, 62, 20);
30        ctx.fillStyle = "#069";
31        ctx.fillText(txt, 2, 15);
32        ctx.fillStyle = "rgba(102, 204, 0, 0.7)";
33        ctx.fillText(txt, 4, 17);
34
35        const dataUrl = canvas.toDataURL();
36        fingerprint += dataUrl;
37    } catch (e) {
38        // ignore
39    }
40
41    let hash = 0;
42    if (fingerprint.length === 0) return hash;
43
44    for (let i = 0; i < fingerprint.length; i++) {
45        const char = fingerprint.charCodeAt(i);
46        hash = (hash << 5) - hash + char;
47        hash |= 0; // force 32-bit
48    }
49
50    return hash;
51}