B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
40%
40% -- click through rate reduction for AI Overview-triggered search queries (2026)
Search queries that trigger an AI Overview experience a 40-60% reduction in organic click-through rate.
- Reported as a working assumption range of 40-60% for forecasting purposes
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
40%
Unit
Percentage
Data Vintage
2026
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
bestseo.sg
Primary
Tier B
https://www.bestseo.sg/blog/seo-forecasting-honest-traffic-prediction/ ↗
Source Article
SEO Forecasting: How to Predict Traffic Wins Honestly
Original Research
bestseo.sg
· Original study ↗
Methodology
Range 40-60%; midpoint used. Working assumption cited by agency for AIO-triggered queries.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
AI Overview-triggered search queries: 40% click through rate reduction. Source: bestseo.sg (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/aio-ctr-reduction-2026
HTML Embed
<blockquote cite="https://lighthousedata.io/data/aio-ctr-reduction-2026" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>40%</strong> -- click through rate reduction for AI Overview-triggered search queries<br><small>Source: bestseo.sg (2026) · <a href="https://lighthousedata.io/data/aio-ctr-reduction-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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