Agent Readiness

Agent readiness describes how well a website supports AI agents that read, query or act on it. It covers whether an agent can find your content, read it in a usable format, see which access rules apply, and call your services. It is the technical counterpart to agentic SEO and part of agent experience optimization.

The best-known score comes from Cloudflare, which launched an Agent Readiness tool at isitagentready.com in April 2026. It scores a site on four dimensions. Discoverability covers robots.txt, sitemap.xml and Link headers. Content covers Markdown content negotiation, where a server returns markdown when an agent sends an Accept: text/markdown header. Bot access control covers Content Signals, AI bot rules in robots.txt and Web Bot Auth. Capabilities covers Agent Skills, API Catalog, OAuth server discovery, MCP Server Card and WebMCP. Agentic commerce standards such as x402 are checked but did not count toward the score at launch.

Several of those checks have their own entries here: llms.txt, Markdown for Agents, Content Signals and WebMCP. Cloudflare notes that its default scan checks Markdown negotiation and not llms.txt, though you can include it.

Adoption was low when Cloudflare scanned the 200,000 most visited domains, after filtering out categories where agent readiness matters little. About 78% of sites had a robots.txt, but most were written for search engine crawlers. Content Signals appeared on 4% of sites and Markdown negotiation passed on 3.9%. MCP Server Cards and API Catalogs together appeared on fewer than 15 sites. Cloudflare says Radar updates this chart weekly, so current figures will differ.

A readiness score is a checklist of standards, not proof that AI engines will cite you more. Treat it as a way to find gaps and fix the cheap ones first, then confirm the effect in your crawler logs and visibility data. Our agentic readiness check runs a similar audit, and the guide to preparing your site for AI agents covers the fixes.