Top 100 Websites AI Readiness Leaderboard — April 2026
The only sortable, filterable ranking of how the world’s biggest websites handle AI crawlers. Real data from our multi-signal scanner: llms.txt, GPTBot / ClaudeBot / PerplexityBot rules, LLM knowability, Wayback training-data likelihood, and bot cloaking.
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| # | Domain | Score | Grade | llms.txt | Cloaking | Knowability | Training Data | Action |
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Methodology (short version)
We sampled the top 100 content-producing domains from the Tranco list (April 2026), excluding CDN/infrastructure domains. Each site was scanned by the ZeroKit AI Readiness Checker v2 — a multi-page crawl plus three extended signals: Wayback Machine history, knowability proxy (Wikipedia + Common Crawl + DuckDuckGo), and four-user-agent cloaking detection. The scoring weights are: AI bot rules 30%, llms.txt 20%, structured data 25%, content citability 15%, AI meta directives 10%. Full methodology and limitations in the research report.