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I'm not too familiar with the technique; doesn't pixel tracking still require JS to derive more info from the visitor beyond just their IP address?

• shakna 6y ago
  The GET request will generally also include the User Agent, and any forwarded headers. This can include cookies.
  • tomschlick 6y ago
    Yes but that doesn't include things like screen size/ratio or some other key metrics that usability people rely on. I can see the need for JS but it would be nice if they offered a pixel only version with less granularity for those of us who want the data but without JS.
    • shakna 6y ago
      Those things violate the privacy-first principles, do they not? Things like screen size/ratio are very strong fingerprints that can be used to de-anonymise users with ease.
      • deepstack 6y ago
        Exactly! I think most people don't realize the problem of browsing web with JS turned on.