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NO GOOGLE TRACK - CODEBERG
(lemmy.ml)
Privacy has become a very important issue in modern society, with companies and governments constantly abusing their power, more and more people are waking up to the importance of digital privacy.
In this community everyone is welcome to post links and discuss topics related to privacy.
much thanks to @gary_host_laptop for the logo design :)
Canvas is a special "place"/way of drawing images on a website. It can be used for fingerprinting since different gpus/drivers etc draw things a little differently. Basically a script on a page draws thousands of shapes, pictures whatnot on a canvas you can't see i.e. is placed somewhere out of the standard view area. Then the script calculates some kind of hash or checksum. Combine that with other fingerprinting characteristics you'll get pretty nicely unique browsers.
For example LibreWolf blocks canvas by default for everyone and randomizes the canvas data on every read. If you happen to use a site that uses the canvas for legitimate purposes you won't ever see what's supposed to be there by the original design.
Thank you so much for explaining this in such detail! I'm still quite new to this 'privacy world'. If there are any mistakes on my site, I'd really appreciate feedback. And I'm trying my best to understand everything, even though my English isn't great yet 😅😅