{"id":362,"date":"2025-05-10T22:32:04","date_gmt":"2025-05-10T22:32:04","guid":{"rendered":"https:\/\/abasecurity.ch\/?page_id=362"},"modified":"2025-05-10T22:46:21","modified_gmt":"2025-05-10T22:46:21","slug":"browser-fingerprint","status":"publish","type":"page","link":"https:\/\/abasecurity.ch\/?page_id=362","title":{"rendered":"Browser-Fingerprint"},"content":{"rendered":"\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Hier siehst du, was dein Browser \u00fcber dich verr\u00e4t \u2013 ohne dass du etwas eintippst. Viele Webseiten nutzen diese Daten, um dich zu erkennen. Unser Ziel ist es, dir zu zeigen, wie das funktioniert \u2013 und wie du dich sch\u00fctzen kannst.<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<html lang=\"de\">\n<head>\n  <meta charset=\"UTF-8\">\n  <title>Browser-Fingerprint<\/title>\n  <style>\n    body {\n      font-family: Arial, sans-serif;\n      padding: 20px;\n      background: #f9f9f9;\n    }\n    h1 {\n      text-align: center;\n    }\n    .info-box {\n      background: #fff;\n      border: 1px solid #ccc;\n      padding: 15px;\n      margin: 10px auto;\n      max-width: 600px;\n      border-radius: 6px;\n    }\n    .info-box span {\n      font-weight: bold;\n    }\n  <\/style>\n<\/head>\n<body>\n  <h1>Dein Browser-Fingerprint<\/h1>\n  <div class=\"info-box\"><span>User-Agent:<\/span> <span id=\"userAgent\"><\/span><\/div>\n  <div class=\"info-box\"><span>Bildschirmaufl\u00f6sung:<\/span> <span id=\"screenRes\"><\/span><\/div>\n  <div class=\"info-box\"><span>Zeitzone:<\/span> <span id=\"timezone\"><\/span><\/div>\n  <div class=\"info-box\"><span>Sprache:<\/span> <span id=\"language\"><\/span><\/div>\n  <div class=\"info-box\"><span>Plattform:<\/span> <span id=\"platform\"><\/span><\/div>\n  <div class=\"info-box\"><span>Lokale IP (WebRTC):<\/span> <span id=\"localIP\">Wird geladen&#8230;<\/span><\/div>\n\n  <script>\n    \/\/ Basisinformationen\n    document.getElementById('userAgent').textContent = navigator.userAgent;\n    document.getElementById('screenRes').textContent = screen.width + ' x ' + screen.height;\n    document.getElementById('timezone').textContent = Intl.DateTimeFormat().resolvedOptions().timeZone;\n    document.getElementById('language').textContent = navigator.language;\n    document.getElementById('platform').textContent = navigator.platform;\n\n    \/\/ Lokale IP \u00fcber WebRTC (optional, wird evtl. geblockt)\n    function getLocalIP(callback) {\n      const pc = new RTCPeerConnection({iceServers: []});\n      pc.createDataChannel(\"\");\n\n      pc.onicecandidate = event => {\n        if (!event || !event.candidate) return;\n        const ipRegex = \/([0-9]{1,3}(\\.[0-9]{1,3}){3})\/;\n        const ipMatch = ipRegex.exec(event.candidate.candidate);\n        if (ipMatch) {\n          callback(ipMatch[1]);\n          pc.onicecandidate = null;\n          pc.close();\n        }\n      };\n\n      pc.createOffer().then(offer => pc.setLocalDescription(offer)).catch(() => {\n        callback('Nicht verf\u00fcgbar');\n      });\n    }\n\n    getLocalIP(ip => {\n      document.getElementById('localIP').textContent = ip || 'Nicht verf\u00fcgbar';\n    });\n  <\/script>\n<\/body>\n<\/html>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Dein <strong>Browser-Fingerprint<\/strong> ist eine Sammlung von Informationen, die dein Browser beim Besuch einer Webseite automatisch \u00fcbermittelt. Auch wenn du keine Daten eingibst, gibt dein Browser bereits einiges \u00fcber dich preis.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Information<\/th><th>Erkl\u00e4rung f\u00fcr dich als Nutzer<\/th><\/tr><\/thead><tbody><tr><td><strong>User-Agent<\/strong><\/td><td>Zeigt, welchen Browser du verwendest (z.\u202fB. Chrome, Firefox) und auf welchem Betriebssystem (z.\u202fB. Windows, Android).<\/td><\/tr><tr><td><strong>Bildschirmaufl\u00f6sung<\/strong><\/td><td>Zeigt, wie gro\u00df dein Bildschirm ist oder wie gro\u00df dein Browserfenster aktuell ist. Das kann R\u00fcckschl\u00fcsse auf dein Ger\u00e4t geben.<\/td><\/tr><tr><td><strong>Zeitzone<\/strong><\/td><td>Deine lokale Zeitzone \u2013 z.\u202fB. \u201eEurope\/Berlin\u201c. Damit l\u00e4sst sich ungef\u00e4hr dein Standort ermitteln.<\/td><\/tr><tr><td><strong>Sprache<\/strong><\/td><td>Welche Sprache dein Browser bevorzugt (z.\u202fB. Deutsch oder Englisch).<\/td><\/tr><tr><td><strong>Plattform<\/strong><\/td><td>Technische Information \u00fcber dein Betriebssystem \u2013 z.\u202fB. ob du einen Mac oder Windows-PC nutzt.<\/td><\/tr><tr><td><strong>Lokale IP (WebRTC)<\/strong><\/td><td>Deine Netzwerkadresse im Heimnetzwerk, z.\u202fB. \u201e192.168.x.x\u201c. Normalerweise nicht \u00f6ffentlich \u2013 aber durch den Browser eventuell sichtbar.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Warum ist das wichtig?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Diese Informationen k\u00f6nnen dazu verwendet werden, <strong>dich wiederzuerkennen<\/strong>, selbst wenn du:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>im Inkognito-Modus surfst,<\/li>\n\n\n\n<li>Cookies gel\u00f6scht hast,<\/li>\n\n\n\n<li>keine Anmeldung durchgef\u00fchrt hast.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Diese Technik nennt sich <strong>Fingerprinting<\/strong> \u2013 und wird leider oft f\u00fcr <strong>Tracking und Werbung<\/strong> genutzt, ohne dass du es bemerkst.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Was kannst du tun?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nutze Browser mit <strong>Datenschutzfunktionen<\/strong> (z.\u202fB. Firefox, Brave, Tor).<\/li>\n\n\n\n<li>Vermeide unn\u00f6tige Browser-Erweiterungen, die weitere Infos preisgeben.<\/li>\n\n\n\n<li>Verwende <strong>Anti-Fingerprint-Addons<\/strong> oder aktiviere den Schutz in deinem Browser.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Hier siehst du, was dein Browser \u00fcber dich verr\u00e4t \u2013 ohne dass du etwas eintippst. Viele Webseiten nutzen diese Daten, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-362","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.1.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Browser-Fingerprint - AbaSecurity<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Browser-Fingerprint - AbaSecurity\" \/>\n<meta property=\"og:description\" content=\"Hier siehst du, was dein Browser \u00fcber dich verr\u00e4t \u2013 ohne dass du etwas eintippst. 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