You may not know it, but most browsers default to ‘a goat’s cheese’, to quote Johan Cruijff. That is, they reveal so much information about your system that it is easy to identify, even if you have vetoed all cookies. A great place to test that for your browser is webkay.robinlinus.com. For example, an almost bare-bones version of Chrome tells here the Windows version, browser version, CPU, GPU, battery status, Internet service provider, download speed and login status to various social networks. You will also learn how to prevent this.
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Webkay – How much information does the browser reveal?
