A federal court has unsealed the remedies order in the Google ad tech antitrust case, and the document shows the industry a different outcome than the one this publication flagged as still hidden when the order first landed under seal two weeks ago. Judge Leonie Brinkema’s full 106-page decision, filed under seal on September 2 and made public on September 16, rejects the Department of Justice’s push to force Google to sell AdX or open-source DFP’s auction logic. Instead, Google must build API integrations connecting AdX and DFP to the open-source Prebid framework, submit AdX bids to rival publisher ad servers on the same terms DFP receives them, publish technical documentation on DFP’s auction logic and pricing, and share real-time bid win and loss data with publishers. AdWords is barred from bidding directly into DFP or favoring Google’s own tools, and a court-appointed technical monitor gets six years of access to Google’s systems to enforce it, applying globally rather than just in the US.
For martech leaders, this sets the template for how ad tech monopoly cases get resolved: transparency and interoperability mandates rather than corporate breakups, a smaller structural shock than a forced AdX sale would have been. Publishers gain visibility into an auction that has been opaque for over a decade.
The original insight the industry has mostly missed: DV360, Google’s own demand-side platform, faces no new restrictions at all, because the court found insufficient evidence connecting it to the anticompetitive conduct. That means Google keeps its full-stack advantage on the buy side even as the sell side opens up, which is likely to shift competitive pressure toward independent DSPs faster than toward Google’s ad server business. Advertisers evaluating platform consolidation should watch DV360’s market share over the next two quarters as the real signal of whether these remedies changed the competitive balance or mostly rearranged it, the same question raised when the underlying liability case was first decided.
