What about for email items that already have a 1x1 IMG tag placeholder, or do advertisers never do that?
-JPH > On May 29, 2021, at 17:32, Steven M. Bellovin <s...@cs.columbia.edu> wrote: > > > On 29 May 2021, at 17:30, Randy Bush wrote: > > 3. Is it possible to disable image tracking for 1x1 image by default, > even if I choose to load the images? > > yes, please > > I don't see how that's possible. It's the attempt to do the download > that leads to tracking: a web server somewhere sees a request for > the tracking URL; whether or not anything is shown is irrelevant. > And until you download it, you don't know that it's 1x1. I suppose > someone could set up a server that collected the hostnames or > URLs that served up these things, but uploading to the site is also > tracking, though presumably we'd trust it more. > > —Steve Bellovin, https://www.cs.columbia.edu/~smb
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