B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
68%
68% -- ai citation share for top 15 domains across AI engines (2026)
The top 15 domains accounted for 68% of consolidated AI citation share across major AI engines.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
68%
Unit
Percentage
Data Vintage
2026
Entity
Sample Size
680,000,000
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
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
60
Freshness
95
Source
5W
Primary
Tier B
https://www.ayomidejoseph.com/blog/ai-citation ↗
Source Article
The Citation Economy: Which Sources AI Engines Cite, and What That Means for Where You Invest
Original Research
5W
· Original study ↗
Methodology
5W AI Platform Citation Source Index synthesizing six published studies across ChatGPT, Google AI Overviews, Perplexity, Gemini, Claude
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
top 15 domains across AI engines: 68% ai citation share. Source: 5W (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/top-15-domains-ai-citation-share
HTML Embed
<blockquote cite="https://lighthousedata.io/data/top-15-domains-ai-citation-share" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>68%</strong> -- ai citation share for top 15 domains across AI engines<br><small>Source: 5W (2026) · <a href="https://lighthousedata.io/data/top-15-domains-ai-citation-share" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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