They don't vet anything, anyone can execute any code on tpc.googlesyndicatio.com. See: https://blog.dubbelboer.com/2016/06/10/embed-into-tpc-googlesyndication-c

They don't vet anything, anyone can execute any code on tpc.googlesyndicatio.com. See: https://blog.dubbelboer.com/2016/06/10/embed-into-tpc-googlesyndication-com.html https://blog.dubbelboer.com/2016/06/10/embed-into-tpc-google...