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AI Site Grader
AI Query Scanner
llms.txt GeneratorEverything we know
about AI search.
Guides, open data, research and free tools, built from the AI answers and citations we track. Free to read, use and cite.
Check my site
Free tools that read your site the way AI does. No signup.
How AI reads your site, and what to fix first
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Open benchmarks from real AI answers, citations and visits.
30 days to 26 Oct 2026
Learn how AI search works.
Can’t find it?
Look a term up in the glossary, or read the product documentation.
nike.comAI Site GradeGraded in 58 secondsPerplexityBot can’t read 38 product pages, so Perplexity cites reviews of them instead.
How AI reads the site
ChatGPT
Claude
Perplexity- 1
Let PerplexityBot read your product pages
High - 2
Add product schema to every shoe page
Medium - 3
Answer “does it come in wide?” on the page
Low
See how AI reads your site.
Fourteen free tools, and no signup. Grade your site, scan your Search Console, or sort the bots in your logs without uploading a file.
- AI Site GraderHow AI reads your site, and what to fix first
AI Query ScannerFind the AI conversations in your Search Console
AI Rank TrackerWhere ChatGPT ranks you, with its answer as proof
llms.txt GeneratorA clean llms.txt for the pages that matter most
AI Crawler Log AnalyserSpot AI bots in your logs, on your own machine
Research you can check.
The Half-Life of AI Citations
We followed 108,650 cited URLs from 4 Oct 2025 to 30 Mar 2026. Most appeared on a single day only.
Newest studies
All 12 studiesWe Found Our Competitors' AI Prompt Strategies in Search Console
We decoded 3,476 structured Search Console queries that revealed buyer personas, competitor sets, markets and evaluation rules used in AI visibility tracking.
011Cited, Not Chosen
An exploratory benchmark separating AI citation from recommendation and measuring how recommendation rates change around a brand page's first observed citation.
010Do AI Crawlers Prefer Markdown?
Live randomized experiment measuring whether Markdown changes AI crawler coverage, retrieval demand, and transfer efficiency.
Open data on AI search.
Benchmarks from real AI answers, citations and visits,
refreshed as the data comes in. Free to use and cite.
across 6,597 sites · 30 days to 26 Oct 2026
- Perplexity 0.5%
Gemini 3.1%- Claude 13.7%
- ChatGPT 82.0%
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Questions,
answered.
The ones we hear most about the library.
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The Agent answers from our guides, docs and research, and links to the source.
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