Tracking Code breakdown Entry Page
Hello,
I would like to know how it is possible that when I break down a specific Tracking Code for "Entry Page Original" that there are pages the visitors enter that we never promoted in a social ad.

Mostly 90% is the page we promoted but the other 10% are sites that we never promoted in the ad. How is it possible that those Pages are listed?
The goal is to break down the Trackingcodes, what the first Page visit from the visitor was.
Thank you for your help.
Best Regards