B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
7.2%
7.2% -- ai discovery file adoption rate for Top 1,000 global and UK websites (Q2 2026)
In Q2 2026, 7.2% of crawled top global and UK domains had at least one AI Discovery File.
- Covers 1,905 domains out of ~1,995 target domains due to 90 crawling errors
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
7.2%
Unit
Percentage
Data Vintage
Q2 2026
Entity
Sample Size
1,905
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 Research
Primary
Tier A
https://www.ai-visibility.org.uk/research/2026-q2/ ↗
Source Article
AI Discovery File Adoption Research, Q2 2026, AI Visibility
7.2% adoption
AI Discovery File Adoption Research
Measuring how the world's top websites prepare for AI systems. Based on a crawl of 1,995 domains.
Summary
This Q2 2026 report analyses AI Discovery File adoption across 1,905 of the web's most prominent domains. 7.2% of domains have at least one AI D…
Original Research
AI Visibility Research
· Original study ↗
Methodology
Quarterly crawl of ~1,995 top domains checking for 10 AI Discovery Files, validated against specification
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Top 1,000 global and UK websites: 7.2% ai discovery file adoption rate. Source: AI Visibility Research (Q2 2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/adf-adoption-q2-2026
HTML Embed
<blockquote cite="https://lighthousedata.io/data/adf-adoption-q2-2026" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>7.2%</strong> -- ai discovery file adoption rate for Top 1,000 global and UK websites<br><small>Source: AI Visibility Research (Q2 2026) · <a href="https://lighthousedata.io/data/adf-adoption-q2-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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