Enlarge (credit: FABRICE COFFRINI / Contributor | AFP)

Google just lost a massive antitrust trial over its sprawling search business, as US district judge Amit Mehta released his ruling, showing that he sided with the US Department of Justice in the case that could disrupt how billions of people search the web.

"Google is a monopolist, and it has acted as one to maintain its monopoly,” Mehta wrote in his opinion. “It has violated Section 2 of the Sherman Act.”

The verdict will likely come as a shock to Google, which had long argued that punishing Google for being the best in search would be "unprecedented" and frequently pointed to the DOJ's lack of direct evidence. However, Mehta found the limited direct evidence compelling, especially "Google’s admission that it does not 'consider whether users will go to other specific search providers (general or otherwise) if it introduces a change to its Search product.'"

Enlarge / John Schmidtlein, partner at Williams & Connolly LLP and lead litigator for Alphabet Inc.'s Google, arrives to federal court in Washington, DC, US, on Monday, Oct. 2, 2023. (credit: Bloomberg / Contributor | Bloomberg)

Halfway through the first day of closing arguments in the Department of Justice's big antitrust trial against Google, US District Judge Amit Mehta posed the question that likely many Google users have pondered over years of DOJ claims that Google's market dominance has harmed users.

"What should Google have done to remain outside the crosshairs of the DOJ?" Mehta asked plaintiffs halfway through the first of two full days of closing arguments.

According to the DOJ and state attorneys general suing, Google has diminished search quality everywhere online, primarily by locking rivals out of default positions on devices and in browsers. By paying billions for default placements that the government has argued allowed Google to hoard traffic and profits, Google allegedly made it nearly impossible for rivals to secure enough traffic to compete, ultimately decreasing competition and innovation in search by limiting the number of viable search engines in the market.