// Leaderboard · open dataset · 390 companies

Who gets cited
by ChatGPT?

The Agent Readability Score ranks 390 AI companies across infra, models, agents, and dev tools on how cleanly their site is parsed by ChatGPT, Perplexity, and Claude. Scored across five signals: semantic HTML, JSON-LD coverage, llms.txt, citability, and first-contentful speed.

// Sites in view
390
// Average score
66/100
// Agent-native (85+)
51
// Opaque (<55)
105
GET /api/public/leaderboard.json// CC BY 4.0 · re-scored weekly
// Filter:All (390)Infra (82)Models (87)Agents (103)Dev Tools (118)

// Methodology: weighted across semantic HTML (25), JSON-LD (20), llms.txt (15), citability (20), first-contentful speed (20). Flagship rows hand-scored; long-tail rows re-scored weekly. Click any row for the live verdict.

// Is your site here?

Score your site
in under a minute.

Free scan. Semantic HTML, JSON-LD, llms.txt, citability, speed. See where you'd rank against 390 AI companies.

Run /check→Rebuild agent-native