The LLMs.txt Directory is a curated collection of over 1,300 websites that have implemented the llms.txt standard, making it easier for AI systems to understand and interact with their content.
What is the LLMs.txt Directory?
The LLMs.txt Directory is a searchable database of websites that host a /llms.txt file. It provides live token counts for each site’s llms.txt and llms-full.txt files, categorizes listings (e.g., AI & Machine Learning, Developer Tools, SaaS), and is updated daily with newly verified implementations. The directory is maintained by llmtxt.app, a platform focused on AI SEO.
Key Features
- Daily verified updates — New websites are validated and added each day, ensuring the directory reflects the latest llms.txt adopters.
- Live token counts — Each listing shows the exact number of tokens in its llms.txt and llms-full.txt files (e.g., Anthropic’s llms.txt has 15,391 tokens; Cloudflare Docs has 33,874 tokens).
- Categorization — Sites are organized into 17 categories (Websites, AI & Machine Learning, Developer Tools, Finance & Banking, Healthcare, etc.) for targeted browsing.
- Free submission — Website owners can submit their site for inclusion at no cost via a dedicated form at llmtxt.app/submit.
- Search and filter — Browse all listings or filter by category; 1,503 total results are displayed across 63 pages.
- Favicon and link display — Each entry shows a favicon, site name, description, and direct links to the website and its /llms.txt file.
Who is it for?
- AI developers — Quickly discover sites with well-structured /llms.txt files to train or prompt AI models (e.g., using sites like Mintlify or Vercel AI SDK) for reference data.
- Website owners — Check whether competitors or peers have implemented llms.txt and get your own site listed to improve AI discoverability.
- SEO professionals — Monitor which websites are adopting AI-friendly standards and benchmark token counts to optimize content for AI search engines like Perplexity, ChatGPT Search, and Google AI Overviews.
What can you do with it?
- Browse the directory — Explore llmtxt.app to see all 1,300+ sites, sorted by category, and view token counts for each listing.
- Submit your site — Use the submission form to add your own website’s llms.txt file to the directory for free.
- Analyze token usage — Compare token counts across sites. For instance, Cloudflare Docs has a 33,874-token llms.txt and a 3.8-million-token llms-full.txt, while Svelte has a 602-token llms.txt — giving a sense of content depth.
FAQ
How do I submit my website to the directory?
Visit llmtxt.app/submit, enter your site’s URL, and ensure it has a /llms.txt file in the root directory. The team verifies each submission and updates the directory daily.
Is the directory free to use?
Yes. Browsing the directory is free, and submitting your own website costs nothing. There are no premium tiers or paywalls.
What categories are available?
The directory lists 17 categories, including AI & Machine Learning, Developer Tools, Finance & Banking, Healthcare, SaaS & Products, Websites, and more. Each site is assigned one primary category.
