B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
137
137 -- ai crawler visits for AI crawlers visiting HTML versions of test pages (Otterly.ai HTML vs Markdown experiment) (2026)
AI crawlers recorded 137 visits to HTML versions of test pages during a 14-day experiment comparing HTML and Markdown pages.
- 14-day controlled experiment conducted by Otterly.ai
Attribution:
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Lighthouse Research Team
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Evidence graded
Value
137
Unit
Count
Data Vintage
2026
Entity
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
Otterly.ai
Primary
Tier B
https://seohandbook.co.uk/ai-search/markdown-for-ai-agents/ ↗
Source Article
Markdown Pages for AI Agents | The SEO Handbook
Markdown Pages for AI Agents
Last updated
In February 2026, Cloudflare launched a feature called Markdown for Agents, which automatically converts HTML pages to Markdown and serves them to AI crawlers. The pitch: leaner content costs fewer tokens to ingest, so AI systems will use it more readily. Th…
Original Research
Otterly.ai
· Original study ↗
Methodology
14-day controlled experiment comparing HTML and Markdown versions of the same pages, with equal placement and discoverability on the site
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
AI crawlers visiting HTML versions of test pages (Otterly.ai HTML vs Markdown experiment): 137 ai crawler visits. Source: Otterly.ai (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/otterly-ai-crawler-visits-html-pages
HTML Embed
<blockquote cite="https://lighthousedata.io/data/otterly-ai-crawler-visits-html-pages" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>137</strong> -- ai crawler visits for AI crawlers visiting HTML versions of test pages (Otterly.ai HTML vs Markdown experiment)<br><small>Source: Otterly.ai (2026) · <a href="https://lighthousedata.io/data/otterly-ai-crawler-visits-html-pages" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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