B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
7%
7% -- llms txt adoption rate for websites in AI Visibility crawl (2026)
7% of the 1,744 sites sampled in the AI Visibility crawl had an llms.txt file.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
7%
Unit
Percentage
Data Vintage
2026
Entity
Sample Size
1,744
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
AI Visibility
Primary
Tier A
https://www.ai-visibility.org.uk/blog/how-to-appear-in-ai-search/ ↗
Source Article
How to Appear in AI Search Results: 3 Steps (2026) | AI Visibility
Updated 4 September 2026
Google now reports AI search impressions in Search Console, and ships a switch that can exclude your site from AI Overviews and AI Mode entirely. Both went worldwide on 31 August 2026, so there are two new sections: how to read your AI visibility in your own data, and how to…
Original Research
AI Visibility
· Original study ↗
Methodology
Other AI discovery file types under 0.2%
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
websites in AI Visibility crawl: 7% llms txt adoption rate. Source: AI Visibility (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/llms-txt-adoption-rate
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<blockquote cite="https://lighthousedata.io/data/llms-txt-adoption-rate" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>7%</strong> -- llms txt adoption rate for websites in AI Visibility crawl<br><small>Source: AI Visibility (2026) · <a href="https://lighthousedata.io/data/llms-txt-adoption-rate" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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