B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
34.5%
34.5% -- click through rate decline for Top-ranking organic page when Google AI Overviews present (2026)
AI Overviews were associated with a 34.5% lower average click-through rate for the top-ranking page, based on an analysis of 300,000 keywords by Ahrefs.
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Lighthouse Research Team
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Source verified
Evidence graded
Value
34.5%
Unit
Percentage
Data Vintage
2026
Entity
Sample Size
300,000
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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Ahrefs
Primary
Tier C
https://www.tilio.co.uk/blog/building-a-zero-click-moat-for-your-brand ↗
Source Article
Building a zero-click moat for your brand | Tilio
28 April 2026
Building a zero-click moat for your brand
As zero-click search grows, brands need to focus on accuracy, defensibility and conversion, making sure answer engines describe them properly, cite the right pages and send high-intent visitors to content worth clicking.
In this post
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Original Research
Ahrefs
· Original study ↗
Methodology
Ahrefs analysis of 300,000 keywords found AI Overviews associated with a 34.5% lower average CTR for the top-ranking page.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Top-ranking organic page when Google AI Overviews present: 34.5% click through rate decline. Source: Ahrefs (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ai-overviews-ctr-decline-top-page
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<blockquote cite="https://lighthousedata.io/data/ai-overviews-ctr-decline-top-page" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>34.5%</strong> -- click through rate decline for Top-ranking organic page when Google AI Overviews present<br><small>Source: Ahrefs (2026) · <a href="https://lighthousedata.io/data/ai-overviews-ctr-decline-top-page" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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