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> that requires some sort of audience to segment by (typically user id). You don't have to be logged in to be tracked. Facebook Pixel is one way, via a unique
by swirepe 6y ago
> that requires some sort of audience to segment by (typically user id).
You don't have to be logged in to be tracked. Facebook Pixel is one way, via a unique 1x1 transparent image on each page.
https://en.wikipedia.org/wiki/Web_beacon https://en.wikipedia.org/wiki/Web_beacon
- willxinc 6y agoYes, but segmentation by that would be prone to high error rates most likely, and result in error rates too high to gather meaningful data from A/B tests like this.