B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
58%
58% -- share of users with ai summary search for US Google users (2025-03)
58% of U.S. adult users tracked by Pew Research ran at least one Google search that produced an AI summary in a single month (March 2025).
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Lighthouse Research Team
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Evidence graded
Value
58%
Unit
Percentage
Data Vintage
2025-03
Entity
Sample Size
900
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
95
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Pew Research Center
Primary
Tier A
https://digitalmarketingsnapshotforghl.com/blog/ai-search-optimization-for-marketing-agencies/ ↗
Source Article
AI Search Optimization for Marketing Agencies
AI search optimization is the practice of structuring your content so answer engines — Google AI Overviews, ChatGPT, Perplexity, and Bing Copilot — can quote it directly in their answers. For a marketing agency in 2026, it’s no longer optional: search behavior is splitting off the “ten blue links,” …
Original Research
Pew Research Center
· Original study ↗
Methodology
Pew Research browser-tracker study of more than 900 U.S. adults
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
US Google users: 58% share of users with ai summary search. Source: Pew Research Center (2025-03). Via Lighthouse Intelligence -- https://lighthousedata.io/data/pew-users-encountering-ai-summary
HTML Embed
<blockquote cite="https://lighthousedata.io/data/pew-users-encountering-ai-summary" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>58%</strong> -- share of users with ai summary search for US Google users<br><small>Source: Pew Research Center (2025-03) · <a href="https://lighthousedata.io/data/pew-users-encountering-ai-summary" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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