DOJ Asks Federal Judge to Break Up Google’s Ad-Tech Tools

Google's Bay View campus in Mountain View, California.

Photographer: David Paul Morris/Bloomberg
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The US Justice Department asked a federal judge on Friday to force Alphabet Inc.’s Google to sell key parts of its advertising technology and share realtime data with competitors to address a ruling that the technology giant illegally monopolizes much of the market for placing ads around the web.

The government wants the company to divest software used by websites to sell ads, known as a publisher ad server, as well as the exchange used to match buyers and sellers of online display ads. The DOJ argued for a phased approach that would first require Google to provide real-time bidding data from its ad exchange to competing publisher ad servers.