Google will not have to sell AdX or split up its ad-tech business. On September 2, U.S. District Judge Leonie M. Brinkema rejected the U.S. Department of Justice’s proposed structural remedy and chose behavioral restrictions instead. The written decision was unsealed on September 16.
The order targets how Google operates across the ad-tech chain. It requires safeguards around bidding, data sharing and connections between Google’s ad exchange and rival publisher ad servers, while leaving AdX inside Google’s business.
Google keeps AdX, but the court imposes behavioral remedies
The central answer is straightforward: AdX will not be divested, and Google’s ad-tech operation will not be broken apart under this judgment.
The decision follows Brinkema’s April 17, 2025 ruling that Google had unlawfully monopolized the open-web display publisher ad-server and ad-exchange markets and had unlawfully tied DoubleClick for Publishers (DFP) to AdX. DFP is Google’s publisher ad server, while an ad exchange connects bids from multiple buying tools before an ad is sold in milliseconds.
Rather than separating those businesses, the court adopted a conduct-based remedy. That approach keeps the products under Google’s control but places restrictions on how they can interact with publishers, exchanges and bids.
What Google must change in its ad-tech operations
The reported remedy package contains four practical changes:
- No forced bundle: Google must not require publishers that use its ad server to also use its ad exchange.
- No discriminatory bidding: The order prohibits bidding practices that give Google’s services preferential treatment over rival exchanges.
- Rival-server integration: Google must integrate AdX with rival publisher ad servers.
- Data sharing and oversight: The package includes data-sharing obligations, a Monitor and a Technical Committee to supervise compliance.
For publishers, the important shift is that using Google’s publisher ad server is not supposed to require using AdX as well. For competing exchanges, integration with rival publisher ad servers is intended to make access to publisher inventory less dependent on Google’s own stack.
The Monitor and Technical Committee are part of the compliance framework, but the detailed limits of their authority and the technical deadlines are not included here. The judgment is scheduled to remain in effect for six years.
What the DOJ sought—and what the court chose instead
The U.S. Department of Justice argued for structural separation, including the sale of AdX and the release of DFP’s final auction logic as open-source software. The adopted approach stops short of those measures.
| Remedy dimension | DOJ proposal | Adopted court approach |
| Structural relief | Divest AdX; open-source DFP’s final auction logic; retain the option of further DFP divestiture | No AdX sale and no breakup of Google’s ad-tech business |
| Duration | The DOJ and states sought 15 years or more of oversight | Six years, with a possible extension if Google has not fully complied |
| Competition safeguards | Structural separation combined with behavioral measures during the transition | Prohibit discriminatory bidding, require data sharing and integrate AdX with rival publisher ad servers |
| Compliance | Government monitoring associated with the behavioral remedy | A Monitor and Technical Committee oversee compliance |
| Geographic scope | Google opposed an injunction operating outside the United States | Brinkema indicated that worldwide application could involve product changes consistent with Google’s operations across regions |
The difference is more than a legal technicality. A divestiture would have changed who owned or controlled key parts of the ad-tech chain. Behavioral remedies leave that structure intact and attempt to constrain how Google uses it.
Six years of oversight, with a possible extension
The judgment’s standard term is six years, shorter than the 15-year period sought by the DOJ and states. Brinkema retained authority to extend it if Google has not fully satisfied the order within that period.
That makes compliance a continuing condition rather than a one-time product change. Google must operate under the restrictions while the oversight framework is in force, and the court can extend the judgment when its requirements have not been fully met.
What the ruling could mean beyond the United States
The judgment could have effects outside the United States. Brinkema indicated that applying it worldwide could involve product changes consistent with Google’s existing operations across regions.
That is a potential geographic scope for the order, not a statement that every remedy change has already been implemented worldwide. The immediate legal result is clear: Google keeps AdX, while its ad-tech products face conduct restrictions, data-sharing requirements and external compliance oversight for the judgment’s six-year term.
