B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
73%
73% -- share of ai answer sources in top 100 results for Google AI Overviews (2025)
Around 73% of sources used in Google AI Overviews answers appear within the top 100 search results.
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Lighthouse Research Team
Last verified:
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Evidence graded
Value
73%
Unit
Percentage
Data Vintage
2025
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Ruhr University Bochum
Primary
Tier B
https://www.seobility.net/en/blog/impact-of-ai-overviews-on-seo/ ↗
Source Article
How do Google AI Overviews affect SEO (and how should you adapt)?
In this post
How Google AI Overviews Affect SEO (and How to Adapt)
- The Core Issue: Google’s AI Overviews answer many queries right at the top of the results page. That pushes down organic click-through rates and raises the share of zero-click searches, especially for generic informational content.…
Original Research
Ruhr University Bochum
· Original study ↗
Methodology
Independent analyses including University Bochum study
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Google AI Overviews: 73% share of ai answer sources in top 100 results. Source: Ruhr University Bochum (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ai-answer-sources-top100-73
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<blockquote cite="https://lighthousedata.io/data/ai-answer-sources-top100-73" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>73%</strong> -- share of ai answer sources in top 100 results for Google AI Overviews<br><small>Source: Ruhr University Bochum (2025) · <a href="https://lighthousedata.io/data/ai-answer-sources-top100-73" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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