B
Evidence Grade B
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accuracy verified by the review judge
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Recent
47.5%
47.5% -- click through rate loss for UK publishers (Google search queries with AI Overview, desktop) (2025)
When a Google AI Overview is present, publishers experience a 47.5% per-query clickthrough rate loss on desktop.
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Lighthouse Research Team
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Source verified
Evidence graded
Value
47.5%
Unit
Percentage
Data Vintage
2025
Entity
Geography
UK
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
Research submitted to the UK Competition and Markets Authority (CMA)
Primary
Tier B
https://www.ceotodaymagazine.com/2025/08/google-ai-the-silent-traffic-killer/ ↗
Source Article
Google AI Overviews: The Publisher Threat
Google’s AI Overviews: The Existential Threat Publishers Can’t Ignore
The launch of Google's new AI Overviews in the UK is not just another algorithm update—it's an existential challenge to the business models of publishers and content creators. Unlike traditional search results, which offer a click…
Original Research
Research submitted to the UK Competition and Markets Authority (CMA)
· Original study ↗
Methodology
Per-query clickthrough rate loss on desktop when a Google AI Overview is present, from research submitted to the UK Competition and Markets Authority (CMA)
Methodology documented
Segmentation
IndustryMedia
RegionUK
Channelsearch
Cite this stat
Plain Text
UK publishers (Google search queries with AI Overview, desktop): 47.5% click through rate loss. Source: Research submitted to the UK Competition and Markets Authority (CMA) (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ai-overview-desktop-ctr-loss-2025
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<blockquote cite="https://lighthousedata.io/data/ai-overview-desktop-ctr-loss-2025" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>47.5%</strong> -- click through rate loss for UK publishers (Google search queries with AI Overview, desktop)<br><small>Source: Research submitted to the UK Competition and Markets Authority (CMA) (2025) · <a href="https://lighthousedata.io/data/ai-overview-desktop-ctr-loss-2025" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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