B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
27%
27% -- ai overview coverage rate for Google AI Overviews on ecommerce transactional queries (2026)
Google AI Overview coverage on commercial and transactional ecommerce queries was around 27% before declining to roughly 18–19%.
- Approximation in source ('around 27%')
- Represents the prior coverage rate before declining to roughly 18–19%
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
27%
Unit
Percentage
Data Vintage
2026
Entity
Geography
Global
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
bitquirky.com
Primary
Tier B
https://bitquirky.com/ecommerce-seo/ ↗
Source Article
Proven ECommerce SEO Consultant & Services UK
Original Research
bitquirky.com
· Original study ↗
Methodology
Range 18-19%, midpoint used; declined from ~27%
Methodology documented
Segmentation
IndustryeCommerce
RegionGlobal
RoleSEO Specialist
Channelsearch
Cite this stat
Plain Text
Google AI Overviews on ecommerce transactional queries: 27% ai overview coverage rate. Source: bitquirky.com (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ai-overview-ecommerce-query-coverage-decline
HTML Embed
<blockquote cite="https://lighthousedata.io/data/ai-overview-ecommerce-query-coverage-decline" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>27%</strong> -- ai overview coverage rate for Google AI Overviews on ecommerce transactional queries<br><small>Source: bitquirky.com (2026) · <a href="https://lighthousedata.io/data/ai-overview-ecommerce-query-coverage-decline" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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