If any group of companies should have their site ready for AI agents in 2026, it is the ones building AI. So we ran a real scan on 19 of them: Anthropic, OpenAI, Perplexity, Cloudflare, GitHub, Stripe, Vercel, Shopify, Notion, Figma, Linear, Cursor, Supabase, Pinecone, Hugging Face, LangChain, Mistral, Cohere, Groq.
Result: 0 A grades. 1 B. 7 C. 10 D. 1 F. Average pass rate 54.5% across 34 signals.
That is not "the internet is behind". That is the vendors whose own agents crawl your site failing their own homework. If you build the web today, this benchmark is a cheat sheet for what to fix first.
What we actually checked
Our public scanner runs 34 signals grouped in six buckets:






