For years, publishers have suspected the game was rigged. Now a federal judge has confirmed it in writing. The question is no longer whether Google abused its dominant position across the ad tech stack — it's what happens next, and whether the remedies will be meaningful enough to actually change anything.
The answer to that question will define the economics of digital publishing for the next decade.
Where Things Stand
The US Department of Justice is pushing hard for structural remedies: divestiture of Google's ad exchange (AdX) and potentially its publisher ad server (DFP, now Google Ad Manager). A ruling from the remedies phase is expected in mid-2026. Separately, the European Commission has issued a €2.95 billion fine — one of the largest ever levied in an ad tech case — with structural separation warnings attached that echo the DOJ's position.
And then there are the publishers. Vox, The Atlantic, Business Insider, McClatchy, Slate; a growing list of major media companies have filed private follow-on lawsuits in New York, seeking compensation for revenue they argue was systematically suppressed by Google's self-preferencing behaviour. These aren't fringe claims. They're built on the evidentiary foundation the DOJ case already laid down.
This is the most consequential structural moment in digital advertising in over a decade. Possibly ever.
What the Remedies Could Actually Mean
Let's be precise, because the range of outcomes here is genuinely wide.
At the aggressive end: Google is forced to divest AdX and DFP as standalone businesses, severing the structural conflict of interest that allowed it to simultaneously operate the buy-side tool (DV360), the sell-side exchange (AdX), and the publisher ad server (DFP). The court found that Google used this stack to systematically advantage its own exchange at publishers' expense — suppressing header bidding, manipulating auction dynamics, and extracting a ~20% take rate that no independent exchange could match while Google had its thumb on the scales.
At the weaker end: behavioural remedies only. Google keeps the assets but faces restrictions on self-preferencing and interoperability obligations (perhaps being forced to comply with prebid to force transparency?). AdX's take rate comes under pressure. Publishers gain more genuine choice in how their inventory is routed.
Even the weaker outcome would be a meaningful shift. But structural separation is the only remedy that permanently removes the conflict. Behavioural commitments in ad tech have a poor track record — the complexity of real-time bidding makes them extraordinarily difficult to monitor and enforce.
The 90% Problem No One Talks About Enough
Google's share of the publisher ad server market sits at roughly 90%. That figure alone should alarm any regulator, and it explains why so many European publishers have found themselves with no practical alternative; not because they haven't looked, but because the network effects, the integrations, and the commercial pressure from buyers all pointed in one direction.
That's not a free market. That's a structural chokepoint. And it means that even publishers who deeply distrust Google's incentives have had very limited ability to act on that distrust.
A genuine divestiture changes the calculus entirely. A standalone DFP — or its eventual replacement in a competitive market — would have to compete on actual product merit: response times, yield optimisation, transparency, pricing, and trust. For the first time, publishers would have real leverage.
What a Post-Google Ad Server Market Looks Like for European Publishers
Here's the thing: the model the courts are trying to mandate through remedies already exists. It just hasn't been the default.
Independent ad servers without a conflicted exchange business. SaaS pricing that doesn't scale with your revenue. First-party data that stays under your control, not siphoned into a walled garden. Direct supply chains where the margin doesn't disappear into a black box. Full transparency on auction mechanics. No self-preferencing because there's no buy-side empire to preference.
That's not a hypothetical future state. That's what the market looks like when the infrastructure provider isn't also your competitor for ad spend.
For European publishers specifically, GDPR compliance and data sovereignty aren't optional features — they're requirements. An EU-based ad server that operates under European law, processes data within European infrastructure, and has no incentive to commoditise your audience data for its own targeting business is a fundamentally different proposition to a US-headquartered stack with a €2.95 billion fine on its balance sheet and a structural conflict baked into its architecture.
Adnuntius was built precisely in this mould; publisher-first, no revenue share, no competing exchange, full API access, and data that stays where you put it. We're not making a virtue of neutrality as a marketing angle. It's the operational reality of how we're structured. The courts are now describing it as the correct model.
The Publisher Lawsuits Are a Signal, Not Just a Legal Strategy
The wave of follow-on publisher lawsuits deserves more attention than it's getting in the trade press. Yes, they're partly opportunistic — private litigation that piggybacks on a DOJ win is a rational legal strategy. But the fact that outlets as commercially different as Vox, The Atlantic, and McClatchy are all making the same claim tells you something important about the breadth of the alleged harm.
These publishers are saying, in formal legal filings, that Google's ad tech conduct cost them material revenue over an extended period. If even a fraction of those claims succeed, it will accelerate the shift away from Google's stack in a way that regulatory remedies alone cannot — because it will attach a financial liability to the historical behaviour, not just a forward-looking conduct restriction.
That changes the board room conversation at publishers from 'should we diversify our ad tech?' to 'can we afford not to?'
What Publishers Should Do Before the Ruling Lands
Don't wait for the judge. The remedies process will take time to implement even after a ruling, and any divestiture would be followed by years of transition complexity. Publishers who start building alternatives now will have leverage that publishers who scramble at the last minute won't.
That means auditing your actual dependence on the integrated Google stack — not just DFP, but the full chain from ad server to exchange to demand relationships. It means piloting independent infrastructure so you understand the real switching costs before you're under pressure. And it means taking data sovereignty seriously now, not when a future regulation forces the issue.
The market is about to become competitive in a way it hasn't been for fifteen years. The publishers who treat that as an opportunity rather than a disruption will be the ones who benefit most from it.
The infrastructure to do that already exists. It just hasn't been the path of least resistance — until now.