B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
7%
7% -- llms txt adoption rate for Global and UK top domains (Q3 2026)
In Q3 2026, the adoption rate of llms.txt across crawled top global and UK domains was 7.0%.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
7%
Unit
Percentage
Data Vintage
Q3 2026
Entity
Sample Size
1,995
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/research/ ↗
Source Article
AI Visibility Research: How Many Websites Are AI-Ready? AI Visibility
AI Visibility Research
Quarterly AI Visibility Research tracking llms.txt, ai.txt, and AI Discovery File adoption across 1,744 top domains
How Many Websites Are AI-Ready?
Our AI Visibility Research programme tracks AI Discovery File adoption, including llms.txt
, ai.txt
, and identity.json
, across …
Original Research
AI Visibility
· Original study ↗
Methodology
Quarterly crawl of top domains; per-file-type adoption measurement
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Global and UK top domains: 7% llms txt adoption rate. Source: AI Visibility (Q3 2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/llms-txt-adoption-q3-2026
HTML Embed
<blockquote cite="https://lighthousedata.io/data/llms-txt-adoption-q3-2026" 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 Global and UK top domains<br><small>Source: AI Visibility (Q3 2026) · <a href="https://lighthousedata.io/data/llms-txt-adoption-q3-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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