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In a landmark decision on April 17, 2025, U.S. District Judge Leonie Brinkema rules that Google has illegally monopolized key sectors of the online advertising technology market. This ruling marks a significant victory for the U.S. Department of Justice (DOJ) and 17 state attorneys general, who have accused the tech giant of anticompetitive practices in its ad tech business.
The court finds that Google willfully acquired and maintained monopoly power in two critical areas: publisher ad servers and ad exchanges. These platforms are essential for websites to manage and sell their advertising space and for matching advertisers with. . .
