LLMs.txt Validator

Check Against Official Specification

Validate your llms.txt file line-by-line against the llmstxt.org specification. Ensure AI systems can properly parse and understand your site structure.

Validate against llmstxt.org spec

Line-by-line error detection

Structural analysis and warnings

Check H1/H2 hierarchy

Verify file list format

Test by URL or direct input

llms.txt URL

Enter the full URL to your llms.txt file (e.g., https://example.com/llms.txt)