Messing with the URIs isn't going to work because most ads are from ad networks and their domains can be blocked. And no ad network is going to trust some syste

Messing with the URIs isn't going to work because most ads are from ad networks and their domains can be blocked. And no ad network is going to trust some system where they need to rely on the client server to not lie about ad impressions. Adblock mostly misses self-hosted ads anyway.