Panopticlick is a web page provided by the Electronic Frontier Foundation. Created by Electronic Frontier Foundation Panopticlick is a research project designed to better uncover the tools and techniques of online trackers and test the efficacy of privacy add-ons.When you visit a website, you are allowing that site to access a lot of information about your computer’s configuration. Combined, this information can create a kind of fingerprint — a signature that could be used to identify you and your computer. Some companies use this technology to try to identify individual computers. More Info »In 2010, EFF launched Panopticlick, a research project to investigate how unique each browser is. We gathered information about the configuration and version information from your operating system, your browser, and your plug-ins, and compared it to our database of many other Internet users’ configurations. Then, we generated a uniqueness score — letting you see how easily identifiable you might be as you surf the web.In 2015, we upgraded Panopticlick with a new feature: tracker blocker testing. Million of Internet users are using privacy add-ons and other tools to block trackers, including tools like AdBlock, Ghostery and Disconnect. But how well do these add-ons actually protect users from invasive tracking?Our new version of Panopticlick researches both. We analyze how well you are protected against online tracking by checking the privacy protections you have in place. The test simulates loading of a visible ad that performs tracking, an invisible script that performs tracking, and a site that looks superficially like a tracker but actually has committed to honor Do Not Track.Even if your privacy add-ons are working well, you may still be vulnerable if your browser fingerprint is unique.
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