UK publishers can now opt out of Google AI Overviews without losing rankings

For the first time, a regulator has broken the all-or-nothing bargain at the heart of AI search. On 3 June 2026 the UK's competition regulator ordered Google to let publishers refuse AI use of their content while keeping their search rankings intact. It is the most concrete constraint any government has placed on AI search so far.

Until now, publishers who did not want Google's AI summarising their work had exactly one lever: block Googlebot. That also removed them from Search. It was not a real choice, and everyone knew it.

The UK's Competition and Markets Authority has now taken that bind apart.

What the CMA actually ordered

On 3 June 2026, the CMA imposed a binding conduct requirement on Google under the Digital Markets, Competition and Consumers Act 2024, following Google's designation with Strategic Market Status in October 2025. This is an order, not a consultation or a proposal.

The substance: Google must give publishers controls over whether their content is used in its generative AI products. The scope is wider than most coverage suggested. It covers search generative AI features such as AI Overviews and AI Mode, and it covers broader generative AI services outside of general search, explicitly including the Gemini assistant and the Vertex AI API. The controls extend to both training, including fine-tuning, and grounding.

Publishers must get these controls at directory and page level. That detail matters more than it looks: the CMA moved the directory- and page-level requirement out of the interpretive notes and into the binding requirement itself, over Google's objection. One caveat worth holding on to - the decision allows a separate implementation date for page-level controls, so the finer-grained version may arrive later.

"Google cannot penalise publishers who use these controls, for instance, by down-ranking their content in regular search results."

The part that makes it usable

The ranking protection is what turns this from symbolism into leverage. The CMA's own language is direct: Google cannot penalise publishers who use these controls, for instance by down-ranking their content in regular search results. The decision text explicitly acknowledges that publishers feared retaliation through downranking.

So a publisher can now decline AI use and remain fully indexed and ranked in standard Search and Discover. That separation - AI use here, search visibility there - did not exist as an enforceable right anywhere in the world before June.

The CMA also requires Google to make sure publisher content is properly attributed, using clear links, in AI-generated results. Attribution is the currency of AI search, so a regulator mandating it is a meaningful precedent even outside the UK.

Where the gap still is

Do not confuse the order with what has actually shipped. The conduct requirement covers Gemini and Vertex AI. The opt-out toggle that appeared in Search Console around 8 June 2026 excludes the Gemini app. Google has nine months to comply in full, though the CMA said it expects important parts of the controls to become available well before that deadline, and Google must file compliance reports every six months for the first year.

There is also a strategic problem the order cannot solve. Opting out of AI Overviews means opting out of being cited in them. As AI answers absorb more of the journey, invisibility in the answer layer is its own cost. Publishers reported to Digiday that the trade-off is hard to use safely, and they are right: this is a lever, not a free win.

What to do about it

• Do not opt out reflexively. If AI engines currently cite you and send qualified readers, removing yourself from the answer is a real loss. Measure before you act.
• Use it surgically. Directory-level control means you can protect premium or subscriber content while leaving marketing and reference pages available to be cited.
• Expect it to travel. Google said it plans to roll the opt-out setting out globally over time. A UK-only rule today is a preview of the default control surface everywhere.
• Press on attribution. The clear-links requirement is the part brands outside publishing should watch, because it shapes whether being cited actually returns anything.

The takeaway

The CMA did not decide whether AI Overviews are good or bad. It decided that the choice belongs to the people whose content makes them work, and that exercising it cannot cost you your rankings. For anyone building an AI-visibility strategy, the useful move is not to rush for the exit - it is to find out whether you are being cited at all, then decide what you are willing to trade.

Related: Germany just ruled AI search answers are media, not a neutral pipe →