What Is llms.txt and Why Does It Matter?

llms.txt is a file placed in your website's root directory that guides AI crawlers to your most important pages. Similar to how robots.txt tells search engine crawlers which pages to crawl, llms.txt tells large language models (LLMs) which pages are most important and what they contain.

How llms.txt Works

When AI platforms like ChatGPT, Perplexity, or Google's AI crawl your website, they look for llms.txt to understand your site structure. The file lists your key URLs organized by category (services, blog posts, case studies) with one-line descriptions of what each page covers.

This helps AI models quickly identify which pages are most relevant for different types of queries, increasing the likelihood of your content being cited in AI-generated answers.

llms.txt vs robots.txt

How to Create llms.txt

1. List your key pages. Include services, blog posts, case studies, and core pages.
2. Add one-line descriptions. Each URL should have a brief description of what the page covers.
3. Organize by category. Group URLs under headings like ## Services, ## Blog, ## Case Studies.
4. Place in root directory. The file should be accessible at yourdomain.com/llms.txt.
5. Keep it updated. Add new content as you publish it.