# AI Agent Readiness Checker — Is Your Site Ready for AI Search?

> Free AI agent readiness checker: test any URL for llms.txt, Markdown content negotiation, JSON-LD structured data, sitemap, and AI crawler rules in robots.txt.

Source: https://toolpantry.app/agent-ready-checker

## About

Paste any URL and check its AI-search readiness: llms.txt, Markdown for agents, structured data, sitemap, and crawler rules — each gap explained with how to fix it.

## Quick answer

How do I check if my site is readable by AI agents? Paste your URL below. The checker inspects robots.txt for AI crawler rules, the presence of llms.txt and llms-full.txt, whether the server returns Markdown when asked ( Accept: text/markdown ), JSON-LD structured data, the XML sitemap, and per-page Markdown link relations — then scores your setup out of 9.

## Notes

Unlike our other tools, this checker needs a small server-side fetch to inspect the public files of the URL you enter (browsers block cross-site reads for security). We don't store URLs or results.

## FAQ

**What does “AI agent readiness” mean?**

It is how easily AI assistants and agents (ChatGPT search, Claude, Perplexity, Grok, coding agents) can read, trust, and cite your pages. The basics: allow AI crawlers, describe your site with llms.txt, serve clean Markdown, and expose structured data so machines understand what each page is.

**What is Markdown for agents?**

AI agents increasingly request pages with Accept: text/markdown so they get clean text instead of full HTML. If your server (or a small Worker) returns Markdown for that request, agents spend fewer tokens and can quote your content more accurately. This site does it — try curl -H "Accept: text/markdown" https://toolpantry.app/ .

**Why does this checker need a server while your other tools run locally?**

Browsers block one website from reading another site's files (CORS). To inspect robots.txt or llms.txt on your domain, something server-side has to fetch them. We only fetch the public files of the URL you enter, and we don't store the URL or the results.

**How do I fix the failed checks?**

The open-source kit on GitHub walks through every item: generating Markdown versions of your pages, publishing llms.txt, adding link relations, and wiring content negotiation on a Cloudflare Worker — free-plan friendly. Each check above fails with a specific reason so you know exactly what to add.

**Is a perfect score required?**

No. Crawler access and a sitemap are table stakes; llms.txt, Markdown versions, and JSON-LD are where AI visibility actually improves. Even 4–6 out of 9 puts you ahead of most sites today.