How to Use AI SEO by Adding llms.txt and llms-full.txt to Your Website

As artificial intelligence (AI) or llm models assistants like ChatGPT, Claude and Gemini become new “answer engines,” optimizing your site for them is crucial. The emergence of llms.txt and llms-full.txt files is changing how websites align with AI - and also how Google may interpret your content in search results.

What is llms.txt?

llms.txt is a simple text file, written in markdown, that you place in your website’s root (e.g., yoursite.com/llms.txt). It acts as a guide for large language models (LLMs), directing them to your website’s most important and readable resources. Instead of crawling your entire site like search engines do, AI tools consult llms.txt to understand what your site is about, where your key content lives, and how to access clean, plain-text versions of your work.

Key Benefits:

• Curates What AI Sees: You control which resources and pages AI tools find first, reducing the risk of outdated or incorrect responses.

• Boosts AI SEO: By pointing AIs directly to your valuable, well-structured content, you improve your chances of being cited in answers and driving relevant traffic.

• Improves Accuracy: Guiding AI to markdown (.md) files offers context without code or ads, so answers about your business stay precise and up-to-date.

Who Created llms.txt and Why?

The concept behind llms.txt was initiated by the AI and SEO communities as LLM adoption skyrocketed. Its creation was strongly influenced by leaders like Jeremy Howard and technical organizations such as Fast.ai and Mintlify, responding to the need for a standard way to communicate with AI tools. Their goal: help AI better represent brands, products, and services by referencing what matters most on a website, rather than random snippets.

How Does llms.txt Help LLMs Understand Your Business?

• Clear, Direct Summaries: LLMs work with limited context windows. By providing summaries and links to key resources in one file, you ensure AIs don’t miss crucial information about your brand.

• Reduces Noise: Unlike web crawlers, LLMs aren’t designed to sift through scripts and layouts. Markdown files keep your message front-and-center.

• Prevents Hallucinations: Targeting LLMs to your most up-to-date and authoritative content helps avoid mistakes or misattributions when users ask about your business.

Who Should Use llms.txt?

This feature is recommended for:

• Sites with documentation, help centers, or product FAQs.

• Platforms with tutorials or educational content.

• Blogs or news sites with frequently updated articles.

• Large e-commerce stores or online portals with many pages.

• Any business wanting to control their AI perception.

How to Create an llms.txt File:

1. Open a text editor and start your file in markdown format

   • # [Site Name]
     > A short description of your website or business what you do or whar you offer.
     ## Key Resources
     - [Product Overview](/product/overview.md)
     - [Pricing](/pricing.md)
     - [FAQs](/support/faq.md)
     - [Documentation](/docs/)
     - [Contact](/contact.md)

2. Save the file as llms.txt.

3. Upload to the root of your domain e.g., https://yoursite.com/llms.txt.

4. Example https://sbthemes.com/llms.txt

How to Create an llms-full.txt File:

• This is a more detailed companion file, listing all markdown-formatted documentation, knowledge base articles, and major content for sites with high information density.

• Structure it similarly to llms.txt, but with a comprehensive list and optional summaries for deeper AI understanding.

1. Open a text editor and start your file in markdown format

   • # [Site Name]
     > A long description of your website or business what you do or whar you offer.
     ## Key Resources
     - [Product Overview](/product/overview.md)
     - [Pricing](/pricing.md)
     - [FAQs](/support/faq.md)
     - [Documentation](/docs/)
     - [Contact](/contact.md)

2. Save the file as llms-full.txt.

3. Upload to the root of your domain e.g., https://yoursite.com/llms-full.txt.

4. Example https://sbthemes.com/llms-full.txt

Best Practices for High Google Rankings

• Use Semantically Rich Language: Write short, clear section headings and include relevant keywords naturally.

• Keep Content Readable: Aim for short sentences, bullet points, and clear formatting for an elevated readability score.

• Update Regularly: Review your llms.txt to ensure it highlights the latest and most important resources.

• Avoid Clutter: Stick to essential content; limit each file to the top 10–15 links for LLM focus.

• Monitor AI Mentions: After implementation, search for your brand or key products in ChatGPT, Gemini, and Google SGE to see how AIs describe your business—and adjust your files based on results.

If you want to help AI and other site owners discover your llms.txt file, you can submit your website to public directories dedicated to the llms.txt standard. These directories showcase sites using llms.txt and llms-full.txt, making your business easier to find for both AI tools and the wider community. You can quickly submit your website at:

• https://directory.llmstxt.cloud

• https://llmstxt.site

Just visit either site, fill out the submission form, and your website will be part of a growing global directory of AI-ready sites.

Final Thoughts

Adding llms.txt and llms-full.txt to your website helps align your business with both modern AI systems and future generations of search. Taking these simple steps puts you ahead in the AI SEO game and gives you direct influence over how your brand is represented and discovered online.

Ready to control your site's narrative? Add llms.txt today. it's free, quick, and designed for the next wave of search.