Whenever you connect with a program to an Internet resource, a web browser to a website, for instance, information is 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 is 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.

Here is an exhaustive list of various websites in which to test your browser. You should enable JS on these sites for the tests to present a worse-case scenario. In reality, you should control JS and XSS (cross site scripting) on sites with add-ons such as NoScript, uMatrix, uBlock Origin, among others, to reduce the possibility of fingerprinting attacks.

Add-ons / Plugins

Name Description 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://www.adobe.com/software/flash/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 Description 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/

HTML5

Name Description 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 http://html5test.com/
HTML5 Test Tests the browsers HTML5 capabilities https://haveibeenpwned.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 https://test.webrtc.org - http://whatismyipaddress.com/webrtc-test

IP Leaks

Name Description 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 Reveals IP address, host name, IP address location information and other IP related information 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 Description 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 Description 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/
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/
Qualys SSL Labs Tests whether your browser is vulnerable to Poodle, Logjam and FREAK attacks https://www.ssllabs.com/ssltest/viewMyClient.html
RC4 https://rc4.io/

Advanced Tests

Name Description 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 https://tenta.com/test/
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/
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
Fingerprint Browserprint is a free open source project designed to provide the same and better functionality as the original Panopticlick. https://browserprint.info/test
Fingerprint #2 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/
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/
IP Duh Comprehensive annoymity check http://ipduh.com/anonymity-check/

Anonymous SMS Online

These one-use numbers are great for evading nosy site registration inquests, but do not use them for 2FA (Two Factor Authorization.)

Name Description Link
ReceiveSMS.co Frequently updated https://www.receivesms.co/
ReceiveSMS.cc https://www.receivesms.cc/
FreePhoneNum.com U.S and Canadian numbers https://freephonenum.com/
ReceiveSMS.org https://www.receivesms.org/
SMSPrivacy.org Privacy oriented - onion address smspriv6fynj23u6.onion https://smsprivacy.org/
Crypton.sh Privacy oriented - onion address smspriv6fynj23u6.onion https://crypton.sh/
Mysudo.com Paid https://mysudo.com/

Misc Tests

Name Description Link
BrowserRecon Fingerprinting test based on user agent http://www.computec.ch/projekte/browserrecon/?s=scan
Browser Referer Headers Browser referer headers test suite http://browserspy.dk/
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
AudioContext https://audiofingerprint.openwpm.com/
HSTS Supercookie http://www.radicalresearch.co.uk/lab/hstssupercookies
HSTS https://zyan.scripts.mit.edu/sniffly/
Keyboard Events https://w3c.github.io/uievents/tools/key-event-viewer.html
rel=noopener https://mathiasbynens.github.io/rel-noopener/
Popup Test http://www.popuptest.com/
Resouce://URI https://www.browserleaks.com/firefox

Multi-page

These sites have been featured on this list already but are here to demonstrate they have multiple page test.

Name Link
BrowserSpy.dk http://browserspy.dk/
BrowserLeaks https://www.browserleaks.com/
HTML Security https://html5sec.org/
PC Flank http://www.pcflank.com/index.htm

Itisatrap.org - Safe Browsing, Tracking Protection

Name Link
Attack https://itisatrap.org/firefox/its-an-attack.html
Blocked https://itisatrap.org/firefox/blocked.html
Malware https://itisatrap.org/firefox/unwanted.html
Phishing https://itisatrap.org/firefox/its-a-trap.html
Tracking https://itisatrap.org/firefox/its-a-tracker.html

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