The U.S. Department of Justice presented its last defence in the antitrust trial against Google, claiming that the tech giant unlawfully controlled online advertising technology.
Prosecutors argued that Google monopolized markets for ad servers, ad networks, and ad exchanges, rigging the rules of the road.
Publishers testified that they couldn't switch away from Google due to its dominance in ad demand, resulting in potential revenue losses.
If found guilty, Google may be required to sell off Google Ad Manager. The outcome of the case is seen as a smaller financial risk compared to the ruling on Google's monopoly in online search.