Jul 24, 2014

What is canvas fingerprinting?

How does “canvas fingerprinting” work to track website visitors?

Canvas fingerprinting

"Canvas fingerprinting is one of a number of browser fingerprinting techniques of tracking online users that allow websites to uniquely identify and track visitors without the use of browser cookies or other similar means. The technique received wide media coverage in 2014[1][2][3] after researchers from Princeton University and KU Leuven University described it in their paper The Web never forgets.[4]

Canvas fingerprinting has been deployed on 5 percent of the top 100,000 websites, including whitehouse.gov. 95 percent of these websites use canvas fingerprinting created by technology company AddThis.[5]"
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