Study: Google AI Favors Its Own Sites in Search Results
▼ Summary
– Google’s AI Mode now cites Google.com as its most frequent source, accounting for 17.42% of all citations.
– The rate of self-citation has tripled since June 2025, rising from 5.7% to nearly one in five AI citations.
– This practice often directs users to another Google search panel instead of external websites, keeping them within Google’s ecosystem.
– The majority of these internal citations now point to traditional search results pages, not just Google Business Profiles.
– Self-citation is dominant across most industries, with travel and entertainment showing particularly high reliance on Google sources.
Recent research indicates a significant shift in how Google’s AI search feature operates, with the platform increasingly referencing its own properties and frequently directing users to perform another search within its ecosystem. This development raises important questions about the diversity of information sources and the potential impact on website traffic for publishers across the web.
The data reveals that Google.com is now the single most cited source within AI Mode answers, representing 17.42% of all citations. This figure surpasses the combined total of the next six most-referenced domains, which include major platforms like YouTube, Facebook, and Reddit. The trend shows a dramatic acceleration; where Google cited itself in just 5.7% of answers in June 2025, that share has now tripled. When factoring in YouTube, properties controlled by Google account for approximately one-fifth of all sources cited.
This pattern represents an intensification of the self-preferencing already observed in features like AI Overviews, which heavily link to Google Maps, Images, and YouTube. The AI Mode appears to extend this strategy by encouraging users to remain within Google’s digital environment. Often, this is achieved by presenting citations that lead not to external websites, but to panels displaying mini search results, effectively creating another search experience. This practice keeps users engaged on Google’s own surfaces, where they encounter advertisements, reviews, and other monetized content.
The nature of these self-citations has also evolved. Earlier analysis showed Google primarily referencing its own Business Profiles. The current data indicates a change, with nearly 60% of Google citations now pointing to traditional Google search results pages, while 36.1% still link to Business Profiles. Smaller portions direct users to Google Support, Google Flights, and other company properties.
This dominance is evident across nearly all subject areas. The reliance on Google as a source is particularly pronounced in specific niches. For instance, in travel-related queries, over 53% of citations come from Google. The entertainment and hobbies category sees Google cited in nearly 49% of answers, and real estate queries reference Google in over 30% of cases. The sole exception was the careers and jobs category, where the platform Indeed appeared as a source more than three times as often as Google.
The implications for content creators and businesses are substantial. As AI search is designed to surface the most authoritative sources, a heavy bias toward Google’s own properties could mean fewer direct links and reduced organic traffic for independent websites. Users may find themselves navigating a closed loop of Google services instead of being directed to the broader web. The research, which examined over 1.3 million AI Mode citations across 68,313 keywords in 20 industries, underscores a pivotal shift in how search information is curated and delivered.
(Source: Search Engine Land)
