Justice Department Sues Google for Monopolizing Digital Advertising Technologies

The Justice Department—along with the Attorneys General of California, Colorado, Connecticut, New Jersey, New York, Rhode Island, Tennessee, and Virginia—filed a civil antitrust suit against Google for monopolizing multiple digital advertising technology products in violation of Sections 1 and 2 of the Sherman Act. Filed in the US District Court for the Eastern District of Virginia, the complaint alleges that Google monopolizes key digital advertising technologies, collectively referred to as the “ad tech stack,” that website publishers depend on to sell ads and that advertisers rely on to buy ads and reach potential customers. Website publishers use ad tech tools to generate advertising revenue that supports the creation and maintenance of a vibrant open web, providing the public with unprecedented access to ideas, artistic expression, information, goods, and services. Through this monopolization lawsuit, the Justice Department and state Attorneys General seek to restore competition in these important markets and obtain equitable and monetary relief on behalf of the American public. Google’s anticompetitive conduct has included:

• Acquiring Competitors: Engaging in a pattern of acquisitions to obtain control over key digital advertising tools used by website publishers to sell advertising space;
• Forcing Adoption of Google’s Tools: Locking in website publishers to its newly-acquired tools by restricting its unique, must-have advertiser demand to its ad exchange, and in turn, conditioning effective real-time access to its ad exchange on the use of its publisher ad server;
• Distorting Auction Competition: Limiting real-time bidding on publisher inventory to its ad exchange, and impeding rival ad exchanges’ ability to compete on the same terms as Google’s ad exchange; and
• Auction Manipulation: Manipulating auction mechanics across several of its products to insulate Google from competition, deprive rivals of scale, and halt the rise of rival technologies.