The Justice Department and Google wrapped up a two-week hearing that could have a major effect on online advertising.

The Justice Department is pushing a federal judge to force Google to sell its AdX advertising exchange and overhaul its ad business practices.

Google retains Chrome and Android. It'll also have to share data with AI rivals, which could accelerate web traffic declines.

Alphabet Inc's Google faced a bipartisan buzzsaw of tough questions about its ad business in a hearing on Tuesday, with a particular focus on whether it misused its dominance in online advertising to drive profits.

Google could be forced to change its search operations in the UK after it became the first company subject to new powers from Britain's competition regulator to tackle the dominance of Big Tech. Competition regulators have long had Alphabet-owned Google in their sights and Britain's landmark ruling on Friday designating Google as having strategic market status in online search,

Specifically, the agency has found that Google is dominant in search and search advertising, holding a greater than 90 percent share of Internet searches in the UK. In Google's US antitrust trials, the rapid rise of generative AI has muddied the waters.