Google's generative AI search features are steering users back toward the company's own services at a striking rate, according to research released this week. The pattern raises questions about whether the technology giant is tilting the playing field in its favour.
Google now accounts for 17% of all AI Mode citations, more than YouTube, Facebook, Reddit, Amazon, Indeed, and Zillow combined. When YouTube is included, Google-owned properties make up roughly 20% of all sources.
The shift is recent and striking. Google's self-referencing in AI Mode has risen to more than three times its level nine months ago, according to a new SE Ranking report analysing 1.3 million citations. As recently as June 2025, almost all Google citations pointed to Business Profiles, the listings for restaurants and other local services. That has changed dramatically. 59% of Google's AI Mode citations now point to organic search results in the citation panel, expanding the self-citation problem well beyond local queries.
The implications are substantial. Google was the top-cited domain in 19 of 20 industry categories analysed, with travel queries hitting 53.18% Google citations. Google's evolution from a search engine directing traffic to external sources into an answer engine satisfying intent directly represents a fundamental shift that extends user session duration and increases ad exposure while eroding the value proposition of content creators, with a 43% self-referential citation rate reinforcing what critics describe as 'walled garden' behaviour.
Google says its AI systems require no special optimisation and follow standard SEO best practices. There are no additional requirements to appear in AI Overviews or AI Mode, nor other special optimisations necessary, and the features surface relevant links to help people find information they're looking for quickly and reliably.
However, competing explanations for the pattern divide the industry. Google's index contains an enormous volume of deeply interlinked pages across its own properties, including Search, Maps, Business Profiles, YouTube, Support, and Flights, and when AI Mode's query fan-out technique generates sub-queries, Google's own pages frequently rank highly and get cited. Critics argue that this behaviour reflects deliberate ecosystem retention, keeping users engaged with Google services rather than sending them to external websites.
Google has not provided a specific public explanation for the self-citation rate. Critics argue that such practices border on anticompetitive behaviour, especially given ongoing antitrust scrutiny against Google in the United States and Europe.
For website publishers and content creators, the data carries real consequences. If AI search increasingly relies on Google's results, publishers ask how that will affect organic traffic; users may remain within Google's ecosystem instead of visiting external websites, potentially reducing direct clicks to publishers and independent websites. Publishers focused on traditional SEO optimisation now face uncertainty about visibility in Google's new AI-driven search landscape.