[Walf]

It's not just pixels. They strongly encourage site owners to send (normalised and hashed) personal data from every interaction to them, with the promise of better targeting for the site's ads. You cannot block this or opt out because it's server-side.

[JimDabell]

> You cannot block this or opt out because it's server-side.

Facebook’s latest approach is to give people instructions on setting up a relay server in their own infrastructure so that privacy software that blocks third-party tracking still works, even when it looks at IP addresses to detect things like CNAME cloaking.

https://developers.facebook.com/docs/marketing-api/conversio...

[Walf]

The positive of that approach (for users) is that it relies on client-side scripts, so it's possible for privacy tools to target those.

[herbst]

Another reason not to deal with any company that has any kind of Facebook focus at all