Comment by riku_iki

> But to take part in the wider algorithmic Display Ad sales market, my understanding of the DoJ's complaint is that you're (de facto) mandated to use Google's exchange.

even on DoJ pic they say AdX is 50% of market share, meaning other publishers even when using Doubleclick for publishers go somewhere else, so it seams like google allows it.

Also, my understanding is that even on google platform, there is Doubleclick for publishers, but there are other tools: AdSense and AdMob, which are very simple and without much lock in, publisher can move out whenever he wants. Per some internet discussion AdSense don't use AdX, and per some "reddit experts" it is violation of policy to use both simultaniously: https://www.reddit.com/r/adops/comments/18e3mqs/can_i_use_ad...