Do you get notifications about domains you don't recognize sending data from your pixel? Let's fix that.
You need an Allow List. This way, you tell Facebook which domains are allowed to send data from your pixel.
Previously, there was only a Block List. Then you'd need to manually block each new domain that started sending data. Not ideal!
Why do domains you don't know do this? I don't know. There could be some competitive reasons. And in some cases, there are third party apps that you use that you'll need to add. But it can water down your data, so you should address it.
