LLMS.txt Checker Lite

Instantly check if any website has llms.txt or llms-full.txt files and validate their format.

LLMS.txt Checker Lite is a Chrome extension that helps you instantly discover and validate llms.txt files on any website. FEATURES: • Instantly check if websites have llms.txt or llms-full.txt files • Visual indicators showing file existence (✅ or ❌) • Direct links to view the actual files • Validate llms.txt format according to the official spec • Detailed validation reports with recommendations VALIDATION INCLUDES: • Required H1 heading check • Recommended structure elements • Markdown formatting validation • URL format verification (absolute vs relative) • Proper section header usage WHAT IS LLMS.TXT? The llms.txt specification provides a standard way for websites to offer LLM-friendly content. This extension helps developers and site owners ensure their llms.txt files are properly formatted and discoverable. PERFECT FOR: • Web developers implementing llms.txt • SEO professionals optimizing for AI • Content creators ensuring LLM readability • Anyone curious about AI-friendly web content