Key Takeaways
- Research shows that Google AI Overview citations have significantly decreased overlap with top-ranking pages.
- Only 38% of pages cited in AI-generated summaries ranked in the top 10 organic search results, indicating a shift in citation sources.
- The study suggests that query fan-out may influence which pages are cited by Google AI, rather than traditional ranking signals.
- YouTube URLs make up 5.6% of AI Overview citations, showing its prominent role despite not ranking highly in organic results.
- Overall, top organic rankings are less predictive of citation presence in AI-generated summaries now.
Google AI Overview citations from top-ranking pages have decreased significantly, according to new research. The analysis shows reduced overlap between traditional organic rankings and sources cited in AI-generated summaries. The findings are based on a large-scale data study conducted by Ahrefs.
Google AI Overview Citations Show Reduced Overlap With Top 10 Results
The Ahrefs study examined 863,000 keywords and 4 million AI Overview URLs. Only 38% of pages cited in Google AI Overview citations ranked in the top 10 organic search results for the same queries. Earlier research conducted in mid-2025 showed higher overlap between AI citations and top-ranking pages.
About 31.2% of cited pages ranked between positions 11 and 100. Another 31.0% of cited pages did not rank within the top 100 results at all. This indicates that many Google AI Overview citations now reference pages outside top organic positions.
Google AI Overview Citations Influenced by Query Fan-Out
The study suggests that Google AI Overview citations may be influenced by a query fan-out process. In this system, Google may break a search query into multiple related sub-queries. Pages appearing frequently across those variations may be selected for citation.
Google has not officially detailed how AI Overview citations are selected. However, the shift suggests that citation patterns are not strictly tied to traditional ranking signals.
YouTube’s Role in Google AI Overview Citations
YouTube appears frequently in Google AI Overview citations. Among pages that did not rank in the top 100 organic results, 18.2% were YouTube URLs. Overall, YouTube accounted for 5.6% of all AI Overview citations in the dataset.
The study concludes that top 10 organic rankings are now a weaker predictor of being cited in AI-generated summaries. Google AI Overview citations appear to rely on broader content selection patterns rather than strict ranking position alone.
