// WHAT IS LLMS.TXT
A plain-text file that tells AI crawlers what matters
An llms.txt file is a standard published by the AI community (llmstxt.org) that acts as a directory for AI crawlers. Placed at your domain root, it lists your site's most important pages with brief descriptions, helping AI models retrieve the right content for their answers.
Think of it as a signal amplifier. Without llms.txt, an AI model crawls your site indiscriminately and must infer page importance from link structure alone. With llms.txt, you explicitly tell the model which pages represent your brand's authoritative content.
The impact is measurable. Sites with llms.txt are 2.8x more likely to have their key pages cited by AI platforms. The file also reduces crawl budget waste: AI models spend less time indexing blog archives and more time on your money pages.
// HOW TO GENERATE LLMS.TXT
5 steps to create your llms.txt file
Identify your core pages
List the 5-10 most important pages on your site: homepage, product pages, pricing, documentation, and key feature pages. These go in the Core section.
Write clear descriptions
Each URL needs a one-line description explaining what the page contains. AI models use these descriptions to match pages to user queries.
Group supporting content
Add secondary pages under section headers like "Support" or "Resources." Blog posts and documentation belong here, not in Core.
Add an optional llms-full.txt
For sites with extensive documentation, link to an llms-full.txt that lists all important pages in detail. Some AI models use this for deeper context.
Place at root and verify
Upload the file to your domain root and verify it is publicly accessible. Test by visiting https://yoursite.com/llms.txt in a browser.
// EXAMPLE OUTPUT
What a well-formed llms.txt looks like
Below is GeoXylia's own llms.txt file. Every entry includes a URL and a one-line description that tells AI models what each page contains.
# GeoXylia - AI Audit Platform > AI audit platform. Built for how AI systems find and cite content. ## Core - https://www.geoxylia.com/ : Homepage - AI Visibility Audit platform overview - https://www.geoxylia.com/audit : Free AI Visibility Audit - scan your URL across ChatGPT, Perplexity, Gemini, and Claude - https://www.geoxylia.com/features : Product features - citation checks, FixPanel, cross-platform comparison - https://www.geoxylia.com/pricing : Pricing - Free, Pro, and Agency API tiers ## Support - https://www.geoxylia.com/methodology : Audit methodology - how dimensions are scored and weighted - https://www.geoxylia.com/faq : Frequently asked questions about AI visibility audits
Your file follows the same format. Our generator creates it automatically based on your site structure.
Read the technical setup guide for implementation details, or see 10 real examples.
// WHY LLMS.TXT MATTERS FOR GEO
llms.txt is a top-3 GEO optimization with a 2.8x citation lift
Generative Engine Optimization (GEO) is about making your content accessible to AI retrieval systems. llms.txt is one of the highest-impact optimizations because it directly controls how AI models discover your pages.
In GeoXylia's 318-site benchmark, sites with llms.txt scored 2.8x higher citation rates on their indexed pages compared to sites without it. The effect is consistent across ChatGPT, Perplexity, Gemini, and Claude.
Setting up llms.txt takes 10 minutes and requires no technical skills. Our generator walks you through each step and produces a ready-to-upload file.
// FAQ