The ultimate Online Privacy Test Resource List


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

Name What Link
Bad SSL Tests how the browser handles certain SSL certificates and other SSL-types
Battery Status API Tests the status of the battery
BrowserRecon Fingerprinting test based on user agent
Browser Referer Headers Browser referer headers test suite.
Canvas Fingerprinting Checks whether Canvas can be used to fingerprint the browser
Content Filters and Proxy Test Tests network filters, TOR browser and local content filters
DNS Leak Test Tests whether your IP address is leaked by DNS
DNS Spoofability Test Comprehensive analysis of DNS resolving nameservers
Do Not Track Detects support for Do Not Track
Email IP Leak Finds out whether your email provider leaks your IP address
Email Privacy Tester Tests whether your email client leaks back information to the sender of an email
Evercookie Test Checks if persistent data can be saved to the local user system.
Firefox Addon Detector Checks if certain Firefox add-ons are installed
Flash Player System Test Lists information about Flash Player
Flash Player Test Checks whether Adobe Flash Player is installed
How’s My SSL Checks SSL support and provides a rating
HTML5 Features Detection Checks HTML5 capabilities
HTML5 Geolocation Test Tries to look up your location in the world
HTML5 Test Tests the browsers HTML5 capabilities
Java Test Tests whether Java is installed
JavaScript Browser Information Lots of information about the browser’s JavaScript capabilities
Mozilla Plugin Check Checks which plugins are installed in the Firefox web browser
Popup Blocking Tests Tests how well your browser handles (blocks) popups
RC4 Fallback Test Runs a Fallback Vulnerability test
Redirect test page Run a series of redirect tests to find out how your browser handles those
Silverlight Test Reveals information about Silverlight
SSL Check Reveals the SSL cipher used to connect to the website
SSL Cipher Suite Details Lists all cipher suites supported by the browser
System Fonts Detection Uses CSS+JS, Flash, Silverlight or Java to detect fonts
The Joys of HTML Tests whether sites can fill your hard drive with data
Universal Plug n’Play (UPnP) Internet Exposure Test Tests whether your computer rejects UPnP probes
WebRTC Leak Test Tests whether local or public IP addresses are leaked
WebRTC Test Tests WebRTC capabilities
Whois Test Reveals IP address, host name, IP address location information and other IP related information
Weak Diffie-Hellman and the Logjam Attack Tests whether your browser is vulnerable to the Logjam attack

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
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,, 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
Cross Browser Fingerprinting Test Tests locality, operating system, screen resolution, time zone, User Agent string, HTTP Accept, Plugins, Fonts
IP Lookup Checks IP address, browser user agent, referer
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
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
Privacy Analyzer 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

Author: Amanda Walker

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