UK CMA Lets Publishers Block Google AI Use of Content, Adds Links in Search Summaries
Updated
Updated · The Guardian · Jun 3
UK CMA Lets Publishers Block Google AI Use of Content, Adds Links in Search Summaries
3 articles · Updated · The Guardian · Jun 3
Summary
Google must let publishers opt out of having their content used for AI Overviews and for fine-tuning its AI models under new UK conduct requirements.
The Competition and Markets Authority said the rules follow Google’s designation with strategic market status in general search, giving the watchdog power to impose targeted obligations.
Clear links to publisher content will also be required in AI-generated search results, a move the CMA said should improve attribution, consumer trust and publishers’ leverage in content negotiations.
January’s proposal has now been formalized, and CMA chief executive Sarah Cardell said compliance will be actively monitored, with further action on Google’s search business due in coming weeks.
With publishers now able to block Google's AI, who will ultimately pay the price for quality journalism?
Is the UK's move against Google the first shot in a global regulatory war over AI data rights?
Will Google's AI search become less reliable if it's blocked from learning from the web's best content?
UK CMA Forces Google to Offer AI Search Opt-Out After 58% Publisher Traffic Drop: Landmark 2026 Ruling Reshapes Digital Market
Overview
In June 2026, the UK Competition and Markets Authority (CMA) introduced new rules for Google’s search services after designating Google as having strategic market status. This move was driven by Google’s overwhelming dominance in the UK search market, where it handles over 90% of queries and plays a central role in the digital economy. The CMA’s intervention aims to ensure fair competition and give publishers more control over their content, especially as Google’s AI Overviews have reduced web traffic to external sites. These changes mark a significant step toward a more balanced and transparent digital ecosystem.