llms.txt Validator & Checker
Validate your llms.txt file against the official spec. Check format compliance, verify links, analyze structure, and generate templates — make your site AI-ready.
Features
Free llms.txt Validator Tool
Check if your website is AI-ready with our free llms.txt validator. Verify spec compliance, test links, and get actionable recommendations.
Format Validation
Validate your llms.txt file against the official specification. Check for required H1 title, blockquote description, section headings, and properly formatted markdown links.
Link Verification
Automatically check that links in your llms.txt are accessible. We verify the first 5 links with HEAD requests to ensure AI agents can follow them.
Structure Analysis
See a parsed breakdown of your llms.txt — title, description, sections, and link counts. Understand exactly how AI models will interpret your file.
Spec Compliance Score
Get a compliance score (0-100) measuring how well your llms.txt follows the specification. Higher scores mean better AI discoverability.
Template Generator
No llms.txt yet? We generate a ready-to-use template for your domain that follows the spec perfectly. Just customize the content and deploy.
Free & No Sign-up
Validate your llms.txt instantly with no registration, no hidden fees, and no usage limits. Check as many domains as you need.
FAQ
Frequently Asked Questions
Everything you need to know about llms.txt and this validator tool.
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