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Judge Brinkema found Google's display ad business an illegal monopoly in April, then declined to order the AdX sale the Justice Department asked for, so the people who run ad stacks get amended rules on a product Google already folded away.
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DFP, the ad server publishers used to list their inventory, offered on paper the option to route ad space to AdX competitors. In practice, the court found, Google limited those competitors' access to DFP [7]. That gap between the setting and the behavior is the whole case in miniature. It is also the part a behavioral remedy has to close.
So look at what each side put on the table. Google's own proposal, filed last year, included a commitment not to use First Look and Last Look, the two features the suit named as anticompetitive [9] [8]. Google had already replaced both with Unified Pricing Rules several years earlier [9], and neither DFP nor AdX exists as a standalone product any more; their features live inside Google Ad Manager [11]. A promise to stop using controls that are no longer in the build does not change a default for anyone administering that stack today [13].
The Justice Department's second ask was different in kind. It wanted Google to open-source certain components of DFP, the pipe through which publishers sent inventory to AdX [10]. That one would show up in someone's integration work. Of the two remedies the department pushed publicly, the divestiture was refused outright and the open-sourcing request has no public status until the opinion lands [14]. Brinkema's order says most of the parties' proposed behavioral remedies, as modified by the court, are accepted [5], and the modifications are the entire story, arriving in two weeks [6].
A ruling is not the same thing as an outcome. The person this actually lands on is the publisher-side ad ops lead who has to read the modified remedies, map them onto Google Ad Manager screens, and explain to a revenue owner why yield did or did not move. Nobody in that seat gets a restructured exchange. They get amended conduct rules governing the same counterparty they had on Monday.
When the text publishes, the remedies sort along two lines: whether they change a default or a permission in Google Ad Manager as it ships today, and whether you can detect a breach yourself, from auction logs and bid-level reporting you already hold. Change plus detection is worth building a plan around. Change without detection means accepting the new behavior and trusting the enforcement process to catch violations. Detection without change is different: it documents the status quo, useful in a contract negotiation but not much else. Neither outcome is a press release. Recognize that fast enough that you do not staff it as one.
My read is that the recommendation and the cost sit together here. Plan for conduct rules rather than a new market structure, which is cheaper to absorb but leaves you with no second buyer of the exchange to negotiate against. The litigation has run more than three years [12], and the operative products were renamed and merged while it ran [11]. Remedies that trail a product surface tend to arrive describing something that has already moved.
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In January 2023 the U.S. Justice Department and several state attorneys general sued Google LLC over its display advertising unit, which helps brands purchase ad space on third-party websites.
Last April the U.S. District Court for the Eastern District of Virginia, in a ruling by Judge Leonie Brinkema, found that Google's display advertising business maintains an illegal monopoly.
Prosecutors argued the remedy was for Google to sell off parts of the business, specifically AdX, an online auction where brands bid for ad space on publishers' websites and the core focus of the lawsuit.
The court's ruling rejected the Justice Department's divestiture reasoning and did not order Google to sell AdX, but will still require the company to change its business practices.
Judge Brinkema wrote that "most of the parties' proposed behavioral remedies, as modified by this Court, be and are accepted."
It is unclear what the accepted remedies are because the full ruling will only be published in two weeks.
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1 article · September 2, 2026
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One outlet, one quoted line
The whole of the remedy ruling available to a reader is fifteen words of Brinkema — "most of the parties' proposed behavioral remedies, as modified by this Court, be and are accepted" — and SiliconANGLE is the only publisher carrying it. The surrounding history is solid and internally checkable: the January 2023 complaint, April's monopoly finding, how First Look and Last Look worked. The part everyone cares about is a sentence plus a two-week wait, and the report even calls AdX 'now-defunct' a few lines before describing remedies aimed at it.
Nothing to count yet
No remedy text exists publicly, no compliance date is reported, and not one publisher, advertiser or rival exchange is described as having changed anything. The single named concession — dropping First Look and Last Look — applies to capabilities Google already replaced, so it cannot register as uptake either.
'Landmark' arrives before the substance
In the narrow sense that Google keeps its exchange, landmark is fair. But the same piece admits it does not know what the remedies say, notes that both products at the heart of the case stopped shipping separately years ago, and reports that Google's own offer covered features it had already withdrawn. The framing is running two weeks ahead of anything that can be verified.
A concession that costs nothing
The sharpest thing in this reporting is a detail it does not press on: Google's proposed remedy was a pledge not to use First Look and Last Look, two capabilities it had already swapped out for Unified Pricing Rules. That is a defendant negotiating with inventory it no longer runs. The Justice Department's incentive runs the other way — divestiture and open-sourcing both weaken Google's hold on publisher routing — and with no comment from either side, motive here is read off filings rather than voices.
Outcome firm, contents sealed
That Brinkema declined the breakup and accepted modified behavioural remedies is safe to repeat and unlikely to be reversed by the full text. Everything downstream — what the remedies require, whether the DFP open-sourcing request survived, how any of it binds Google Ad Manager — is unknowable from a single trade summary of an unpublished order.