You need some syncing though, otherwise Facebook wouldn't know who that user is ... | Hacker News

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		luckylion on Nov 26, 2022 \| parent \| context \| favorite \| on: We Built a Meta Pixel Inspector You need some syncing though, otherwise Facebook wouldn't know who that user is that almost bought your stuff and that you now want to retarget.

dwild on Nov 27, 2022 [–]

Facebook could probably just ask to send whatever you got about the user and they'll deal with the identification. User agent + IP is probably more than enough. Worst case they just build a JS that can be included and give the full fingerprint.

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