B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
33%
33% -- llms txt adoption rate for GEO tool vendors (gptmelo, Peec AI, Otterly, ZipTie, Geoptie, AICarma) (2026-07)
Only 33% of 6 audited GEO tools deploy llms.txt on their own sites.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
33%
Unit
Percentage
Data Vintage
2026-07
Entity
Sample Size
6
Geography
Global
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
45
Freshness
95
Source
gptmelo
Primary
Tier B
https://www.gptmelo.com/resources ↗
Source Article
AI Content Optimization Resources — Guides, Checklists & Writing Tips for 2026 | gptmelo.com
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Practical guides, checklists, and writing resources for AI content optimization. Whether you are learning the basics, comparing AI search vs traditional SEO, or tracking citation KPIs — start here.
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Foundations, Deep dives, …
Original Research
gptmelo
· Original study ↗
Methodology
gptmelo Research audit of 6 AI search visibility platforms testing llms.txt adoption, AI crawler policies, and pricing
Methodology documented
Segmentation
IndustryAI
RegionGlobal
RoleAll marketers
Channelmulti-channel
Cite this stat
Plain Text
GEO tool vendors (gptmelo, Peec AI, Otterly, ZipTie, Geoptie, AICarma): 33% llms txt adoption rate. Source: gptmelo (2026-07). Via Lighthouse Intelligence -- https://lighthousedata.io/data/geo-tools-llms-txt-adoption-2026
HTML Embed
<blockquote cite="https://lighthousedata.io/data/geo-tools-llms-txt-adoption-2026" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>33%</strong> -- llms txt adoption rate for GEO tool vendors (gptmelo, Peec AI, Otterly, ZipTie, Geoptie, AICarma)<br><small>Source: gptmelo (2026-07) · <a href="https://lighthousedata.io/data/geo-tools-llms-txt-adoption-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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