Free tools
Free tools for LLMs and AI search
LLM Scan's free tools check whether large language models and AI search engines can read your website: an AI readiness scanner, an llms.txt checker and generated fixes for what fails. The scan runs without an account; tracking what ChatGPT and Perplexity say about you every week is the paid part.
The tools
AI readiness scanner
Scores 8 areas out of 100 the way AI crawlers see your page: crawlability, robots.txt rules for 6 AI crawlers, llms.txt, Markdown support, sitemap, semantic HTML, structured data and content signals.
Free, no account
llms.txt checker
Tests whether /llms.txt is served as text with a heading and absolute links, and drafts one when it is missing or thin.
Free, no account
Generated fixes
Drafts an llms.txt, robots.txt additions, JSON-LD and sitemap fixes for the checks that fail. The report previews them; the full files come with a free workspace link sent to your email.
Free, with an email
Sample report
A complete example report, so you can see every check and fix before you scan your own site.
Free, no account
Leaderboard of public scans
AI readiness scores of public scans by category, to compare your site with others.
Free, no account
Which tool answers which question
| Your question | Tool |
|---|---|
| Can GPTBot, ClaudeBot and PerplexityBot read my site? | AI readiness scanner |
| Is my llms.txt any good? | llms.txt checker |
| What should I change in robots.txt or JSON-LD? | Generated fixes |
| How does my site compare with others? | Leaderboard of public scans |
| Does ChatGPT actually recommend us? | Weekly AI visibility tracking (paid) |
When you need more than a free check
The free tools answer whether AI can read your site. Whether assistants name you is a different measurement: paid plans ask ChatGPT and Perplexity your buyers' questions every week, track Google rank and AI Overview citations for your keywords, and include MCP access so an agent can read the Playbook.
Tools for LLMs: questions and answers
- What are the best tools for LLMs?
- For a website, it depends on the job. A readiness scanner checks whether AI crawlers can read you, an llms.txt checker tests the file language models read, and an AI visibility tracker shows whether assistants mention you. LLM Scan offers the first two free and the tracker on paid plans.
- Is there a free tool for LLMs I can use?
- Yes. LLM Scan's AI readiness scanner and llms.txt checker are free and need no account. Run them from the scan box on the homepage.
- Do the free tools render JavaScript?
- No, on purpose. Most AI crawlers do not run JavaScript, so the scan reads the HTML your server returns.
- Do I need an account?
- Not to scan. To get the full generated fix files you enter an email and receive a link to a free workspace.
- Can a free scan tell me if ChatGPT recommends my brand?
- No. The scan checks readiness. Mentions in AI answers are measured by weekly tracking on paid plans.