Whenever you connect with a program to an Internet resource, a web browser to a website for instance, information are revealed to the server hosting the resource.

That's automatic, and often not the only thing happening. If that site loads resources from other servers, they too gain information, and depending on what is running on the site and supported by the browser, additional information may be revealed.

Usually, information such as your computer's IP address, a user agent that reveals browser, operating system and language, and a handful of other information are revealed automatically during connections.

While there are methods available to hide or block certain information from being made known to sites you connect to, there are also methods that sites can use to find out more about you.

Online Privacy Test Resource List

Online privacy tests help you find out what kind of information your browser (or other programs) reveal. The information itself is useful, but you can also act upon it, for instance by disabling certain features in the program you are using if you don't require them.

You find two listings below. The basic tests listing contains resources that perform simple tests (usually one) only while the advanced tests listing resources that run a series of tests.

Basic Tests

Add-ons / Plugins

Name What Link Firefox Addon Detector Checks if certain Firefox add-ons are installed https://thehackerblog.com/addon_scanner/ Flash Player System Test Lists information about Flash Player https://www.browserleaks.com/flash Flash Player Test Checks whether Adobe Flash Player is installed https://get.adobe.com/flashplayer/about/ Java Test Tests whether Java is installed https://www.java.com/en/download/installed.jsp Silverlight Test Reveals information about Silverlight https://www.browserleaks.com/silverlight

Email

Name What Link Email IP Leak Finds out whether your email provider leaks your IP address http://emailipleak.com/ Email Privacy Tester Tests whether your email client leaks back information to the sender of an email https://emailprivacytester.com/ Email Trace Run reverse email look ups or email header traces http://www.ip-adress.com/trace_email/ Have I been pwned Check if an email account has been compromised in a data breach. https://haveibeenpwned.com/ Pwnedlist Check if your email address information have been leaked as part of an attack.

HTML5

Name What Link Battery Status API Tests the status of the battery https://pstadler.sh/battery.js/ Canvas Fingerprinting Checks whether Canvas can be used to fingerprint the browser https://www.browserleaks.com/canvas Hard Drive Fill Test Tests whether sites can fill your hard drive with data http://www.filldisk.com/ HTML5 Features Detection Checks HTML5 capabilities https://www.browserleaks.com/modernizr HTML5 Geolocation Test Tries to look up your location in the world https://www.browserleaks.com/geo HTML5 Test Tests the browsers HTML5 capabilities http://html5test.com/ WebRTC Leak Test Tests whether local or public IP addresses are leaked https://www.perfect-privacy.com/webrtc-leaktest/ WebRTC Test Tests WebRTC capabilities http://whatismyipaddress.com/webrtc-test

IP Leaks

Name What Link Check my Torrent IP Check which IP address is revealed to peers and trackers when you use torrent clients. https://torguard.net/checkmytorrentipaddress.php Content Filters and Proxy Test Tests network filters, TOR browser and local content filters https://www.browserleaks.com/proxy DNS Leak Test Tests whether your IP address is leaked by DNS https://www.dnsleaktest.com/ DNS Spoofability Test Comprehensive analysis of DNS resolving nameservers https://www.grc.com/dns/dns.htm IP Magnet Reveal which IP address BitTorrent clients reveal to peers and trackers. http://ipmagnet.services.cbcdn.com/ Whois Test Reveals IP address, host name, IP address location information and other IP related information https://www.browserleaks.com/whois

Privacy Management

Name What Link Google Account History Display Google-related activities such as your search history or location history. Includes deletion options. https://www.google.com/settings/accounthistory Facebook Activity Log Lists your Facebook activity such as likes, posts and such. You can edit any item or remove them from the log. https://www.facebook.com/me/allactivity YouTube Video History / Search history Displays videos that you have watched and your YouTube search history. https://www.youtube.com/feed/history

SSL

Name What Link Bad SSL Tests how the browser handles certain SSL certificates and other SSL-types https://badssl.com/ FREAK Attack: Client Check Tests whether your browser is vulnerable to the Freak Attack https://freakattack.com/clienttest.html Heartbleed test Tests a server for the Heartbleed vulnerability https://filippo.io/Heartbleed/ RC4 Fallback Test Runs a Fallback Vulnerability test How's My SSL Checks SSL support and provides a rating https://www.howsmyssl.com/ SSL Check Reveals the SSL cipher used to connect to the website https://www.fortify.net/sslcheck.html SSL Cipher Suite Details Lists all cipher suites supported by the browser https://cc.dcsec.uni-hannover.de/ Weak Diffie-Hellman and the Logjam Attack Tests whether your browser is vulnerable to the Logjam attack https://weakdh.org/

Misc Tests

Name What Link BrowserRecon Fingerprinting test based on user agent http://www.computec.ch/projekte/browserrecon/?s=scan Browser Referer Headers Browser referer headers test suite. https://www.darklaunch.com/tools/test-referer Do Not Track Detects support for Do Not Track https://www.browserleaks.com/donottrack Evercookie Test Checks if persistent data can be saved to the local user system. http://samy.pl/evercookie/ JavaScript Browser Information Lots of information about the browser's JavaScript capabilities https://www.browserleaks.com/javascript Popup Blocking Tests Tests how well your browser handles (blocks) popups http://www.kephyr.com/popupkillertest/index.html Redirect test page Run a series of redirect tests to find out how your browser handles those https://jigsaw.w3.org/HTTP/300/Overview.html System Fonts Detection Uses CSS+JS, Flash, Silverlight or Java to detect fonts https://www.browserleaks.com/fonts Universal Plug n'Play (UPnP) Internet Exposure Test https://www.grc.com/x/ne.dll?rh1dkyd2

Advanced Tests

Name What Link Am I Unique Tests whether the browser is unique by checking the following information: User-agent, Accept, Content Encoding, Content Language, List of Plugins, Platform, Cookies, Do Not Track, Timezone, Screen Resolution, Use of local storage, Use of session storage, Canvas, WebGL, Fonts, Screen resolution, Language, Platform, Use of Adblock https://amiunique.org/fp Browser Privacy Test Runs a series of test including IP Leak, WebRTC leak, blacklist, DNS tests and more. Browser Spy Runs the following individual tests: Accepted Filetypes, ActiveX, Adobe Reader, Ajax Support, Bandwidth, Browser, Capabilities, Colors, Components, Connections, Cookies, CPU, CSS, CSS Exploit, Cursors, Date and Time, DirectX, Document, Do Not Track, .Net Framework, Email Verification, Flash, Fonts via Flash, Fonts via Java, Gears, Gecko, Geolocation, Google Chrome, Google Apps, GZip Support, HTTP Headers, HTTP, Images, IP Address, Java, JavaScript, Languages, Mathematical, MathML Support, MIME Types, Mobile, Network, Objects, Object Browser, Online/Offline, OpenDNS, OpenOffice.org, Opera Browser, Opreating System, Google PageRank, Ping, Plugins, Plugs, Prefetech, Proxy, Proxy, Personal Security Manager, QuickTime Player, RealPlayer, Resolution, Screen, Security, Shockwave, Silverlight, Sound Card, SVG, Text Formatting, File Upload, User/Agent, VBScript, WAP Device, WebKit, Web Server, Window, Windows Media Player http://browserspy.dk/ Cross Browser Fingerprinting Test Tests locality, operating system, screen resolution, time zone, User Agent string, HTTP Accept, Plugins, Fonts http://fingerprint.pet-portal.eu/# IP Leak Runs the following tests: IP address, location, WebRTC IP detection, Torrent address detection, Geolocation detection, IP details, Geek details (user agent, referer, language, content encoding, document, system information, screen information, plugins, HTTP Request headers https://ipleak.net/ IP Lookup Checks IP address, browser user agent, referer https://www.ghacks.net/ip/ Five Star Privacy Checker Checks IP address, location, ISP, DNs, Blacklisted or Proxy use, IP location, Script usage such as ActiveX, JavaScript, Java and Flash. Jondonym Full Anonymity Test Tests IP, location, net provider, Reverse DNS, Cookies, Authentication, Cache (E-Tags), HTTP Session, Referer, Signature, User-Agent, SSL Session ID, Language, Content Types, Encoding, Do Not Track, Upgrade-Insecure-Requests http://ip-check.info/?lang=en Panopticlick Tests Supercookies, Canvas Fingerprinting, Screen size and color depth, browser plugins, time zone, DNT header, HTTP Accept headers, WebGL fingerprinting, language, system fonts, platform, user agent, touch support and cookies https://panopticlick.eff.org/ PC Flank A whole battery of tests including: Stealth Test, Browser Test, Trojans Test, Advanced Port Scanner, Exploits Test, PC Flank Leaktest Onion Leak Test For CORS and WebSocket Requests http://cure53.de/leak/onion.php Web Privacy Check Displays the IP address, DNS, user agent and other data. https://ipinfo.info/html/privacy-check.php Whoer Comprehensive test suite that tests for IP address, location, ISP, OS, Browser, Anonymity settings such as DNS, Proxy, Tor, Anonymizer or Blacklist, Browser headers, whether JavaScript, Flash, Java, ActiveX or WebRTC are enabled, time zone, language settings, screen information, plugins, navigator information and HTTP headers https://whoer.net/

Now You: Please help make this the best privacy test resource online by sharing resources not on this list already.

Summary Article Name The ultimate Online Privacy Test Resource List Description The ultimate online privacy test resource list is a collection of Internet sites that check whether your web browser leaks information. Author Martin Brinkmann Publisher Ghacks Technology News Logo

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