In a dramatic turn of events at Google’s antitrust trial, evidence presented by prosecutors has shed light on the aggressive tactics the tech giant allegedly employed to dominate the online advertising market. According to court documents, former Google executive David Rosenblatt described the company’s strategic goal in 2009 as an intent to “crush” its competitors in the advertising technology space.
The evidence, revealed on the third day of the trial, underscores the U.S. Department of Justice’s allegations that Google pursued monopolistic practices across multiple segments of the ad tech industry. Rosenblatt, who was Google’s president of display advertising at the time, reportedly made these statements in late 2008 or early 2009. His comments were captured in notes introduced during the trial, which outlined Google’s strategy of leveraging its position in both publisher ad servers and advertiser ad networks to gain a competitive edge.
“We’ll be able to crush the other networks and that’s our goal,” Rosenblatt reportedly said, highlighting a strategic ambition to dominate the market. The former executive’s remarks were presented alongside a discussion of Google’s dual role in the ad tech ecosystem—owning technology on both sides of the market, including ad exchanges, which Rosenblatt compared to major financial institutions like the NYSE or the London Stock Exchange.
Rosenblatt’s comments indicated a deliberate strategy to make it exceedingly difficult for publishers to switch ad platforms, a process he described as a “nightmare.” This approach, he suggested, would secure Google’s dominance by ensuring that its ad networks had a “first look” at available ad placements.
The Department of Justice argues that Google’s tactics are evidence of an unlawful effort to monopolize the ad tech market. In response, Google has contested the claims, asserting that it faces robust competition from other major digital advertising players such as Microsoft, Amazon, and Meta Platforms. The company maintains that its integrated suite of advertising products is a common industry practice.
As the trial continues, U.S. District Judge Leonie Brinkema will evaluate whether Google’s practices violated antitrust laws. Should the court find against Google, potential remedies could include forcing the company to divest significant assets, such as Google Ad Manager, which encompasses both its publisher ad server and ad exchange platforms.



