Free LLMs.txt Validator & Checker
We'll check your domain for a valid LLMs.txt file at /llms.txt
Paste your LLMs.txt content above to validate it against the specification
PASS - Fully Compliant
LLMs.txt is properly formatted and follows the official specification
Why Validate Your LLMs.txt?
A properly formatted LLMs.txt file ensures AI models can accurately understand and recommend your business. Our validator checks your file against the official specification to catch common mistakes.
What We Validate
File Accessibility & Structure
Verifies your LLMs.txt file is publicly accessible at /llms.txt and follows the required structure with one H1 title and proper H2 sections
Markdown Formatting
Validates proper use of markdown links, lists, and blockquotes following the official specification
Content Quality & Size
Checks file size limits (recommended under 50 KB) and ensures adequate content depth for AI models
Common Issues We Find
- Multiple H1 headings — Use only one H1 for your project name
- Deep heading levels (H3+) — Stick to H1 and H2 for better AI parsing
- Missing blockquote summary — Add a brief description after your title
- Improperly formatted links — Use markdown format: - [Title](url): Description
How to Fix Common Problems
Review the Issues
Check the validation results above for specific problems with your file
Fix Your Content
Update your LLMs.txt file based on the suggestions provided
Re-validate
Run the validator again to ensure all issues are resolved
Need help fixing these issues?
Use our LLMs.txt Generator to automatically create a properly formatted file for your website.
Valid LLMs.txt Example
# Radarkit > AI SEO software that drives predictable results in Google, ChatGPT, and everywhere customers are searching. ## Services - [AI Visibility Tracking](https://radarkit.ai/features): Monitor brand mentions across AI platforms - [Competitor Analysis](https://radarkit.ai/competitor): Compare AI visibility against competitors ## Legal - [Privacy Policy](https://radarkit.ai/privacy): Review our privacy policy - [Terms of Service](https://radarkit.ai/terms): Read the official terms of service
Track Your Brand's AI Visibility
Analyze how AI answers for the keywords your brand wants to rank. We prompt LLM interfaces directly, not APIs.
