LLMs.txt Generator

Enter your site URL or paste your content and get a structured llms.txt file in seconds - formatted to the llmstxt.org specification.

We fetch and analyse any page on your website. Works best on content-rich pages.

What is llms.txt? A plain text file at your site root that tells AI assistants like ChatGPT, Claude and Perplexity what your site is about, helping them understand, reference and cite your content accurately. It is the GEO equivalent of robots.txt for the AI-search era.

Where do I add it? Once generated, save the file as llms.txt and upload it to the root of your website so it is accessible at yourdomain.com/llms.txt. On most hosts this means placing it in the same folder as your index.html file. If you use cPanel, Namecheap, or a similar host, upload via File Manager or FTP to the public_html folder.

Last updated: March 2026 ยท By - questions? Connect on LinkedIn.

Why LLMs.txt Files Are Becoming Essential for AI-Era SEO

The llms.txt file is a plain text document placed at the root of a website - for example, yoursite.com/llms.txt. Proposed by Jeremy Howard (co-founder of fast.ai) in September 2024, it provides a concise, machine-readable overview of a website's content specifically formatted for large language models. The format is defined at llmstxt.org and is already supported by Cloudflare, which offers automatic generation for sites hosted on its platform.

As AI assistants including ChatGPT, Claude, Gemini and Perplexity increasingly answer questions by synthesising and citing information from across the web, the way those systems understand your site matters more than ever. A well-structured llms.txt file acts as a briefing document - telling AI systems which pages exist, what they contain, and which are most authoritative. This is the foundation of Generative Engine Optimisation (GEO), AI Overview Optimisation (AIO) and Answer Engine Optimisation (AEO).

Frequently Asked Questions
What is an llms.txt file?
An llms.txt file is a plain text file placed at the root of a website that provides a concise, structured overview of the site's content formatted for large language models. It was proposed by Jeremy Howard (fast.ai) in September 2024 and is defined at llmstxt.org. It follows a simple format: a site title, a one-sentence description, and sections listing pages with brief descriptions.
Does llms.txt help with Google SEO rankings?
Not directly. Google's organic search rankings are based on its own crawl and indexing signals. However, llms.txt is important for GEO (Generative Engine Optimisation) - helping AI assistants like ChatGPT, Perplexity and Google's AI Overviews understand and accurately cite your content. As AI-generated answers increasingly influence how users find information, GEO is becoming an important complement to traditional SEO.
Which AI systems read llms.txt?
AI assistants with live web access - including ChatGPT (with browsing), Perplexity AI, Claude (with web access), and Bing Copilot - can retrieve and read llms.txt during inference. Some AI training datasets and indexing pipelines also process llms.txt to understand site structure. Cloudflare supports the format natively as of 2025.
Is llms.txt the same as robots.txt or sitemap.xml?
No. Robots.txt controls which pages web crawlers can access. Sitemap.xml lists all URLs for search engine indexing. Llms.txt is a separate, human- and machine-readable summary specifically designed to help LLMs understand what your site is about and identify its most important pages. All three can and should coexist.
What should I include in my llms.txt?
At minimum: your site name, a one-sentence description, and a list of your most important pages with brief descriptions of what each contains. Group pages into logical sections (e.g. Tools, Blog, About, Documentation). The goal is to give an LLM a clear mental model of your site in under two minutes of reading.
How often should I update my llms.txt?
Update it whenever you add significant new content, launch new pages or tools, or change the focus of your site. For most sites, reviewing it quarterly is sufficient. Treat it like your sitemap - keep it current but not obsessively maintained.
Can this tool generate llms.txt for any website?
The URL mode fetches and analyses your homepage. It works best on content-rich pages with clear headings and descriptions. Some sites may block automated fetches - if that happens, use Paste Content mode and provide a description of your site manually.
How It Works
  1. Choose your input mode. Either enter your website URL (the tool fetches and analyses your homepage) or paste your content directly - for example a site description, list of pages, or an existing sitemap.
  2. Click Generate. The content is sent to an AI model which reads it and produces a correctly structured llms.txt file following the llmstxt.org specification.
  3. Review the output. The generated file will include a site title, a one-sentence description, and logically grouped sections with descriptions for each page or resource.
  4. Copy or download. Use the Copy button to grab the text, or Download to save it directly as llms.txt.
  5. Upload to your site root. Place the file at yourdomain.com/llms.txt so that AI systems can find it automatically. No code changes required.
Key Points - LLMs.txt and AI Search
  • GEO is the new SEO. Generative Engine Optimisation refers to strategies that help AI-powered search tools discover, understand and accurately represent your content. As AI Overviews appear in Google, Bing and standalone AI assistants, GEO is becoming as important as traditional SEO.
  • llms.txt is not robots.txt. Robots.txt restricts or allows crawl access. Llms.txt is additive - it helps AI systems understand what your site contains and which pages matter most. Both files can coexist independently.
  • The format is simple by design. The specification uses a minimal Markdown-like structure: a # title, a > one-line description, optional prose, and ## sections with linked, annotated resources. This makes it easy for both humans and machines to read.
  • Cloudflare already supports it. Cloudflare announced native llms.txt generation for sites on its platform in 2025, signalling that the format is gaining mainstream infrastructure support - not just academic interest.
  • Early adoption advantage. Llms.txt is still in early adoption. Sites that implement it now will be better positioned as AI-driven search and retrieval grows, particularly for niche or technical topics where AI assistants actively seek authoritative sources.
  • Not a ranking signal - yet. There is currently no evidence that llms.txt directly affects Google organic rankings. Its value is in AI assistant citations, AI Overview inclusion, and retrieval-augmented generation (RAG) systems that index structured site information.
Sources & Further Reading
  1. LLMs.txt - Official Specification. llmstxt.org. Proposed by Jeremy Howard, September 2024.
  2. Jeremy Howard - A standard for LLMs. fast.ai blog. September 2024.
  3. Cloudflare - LLMs.txt Support. Cloudflare Developers Documentation. 2025.
  4. Search Engine Land - What is GEO (Generative Engine Optimisation)?. SearchEngineLand.com.
  5. Moz - AI Overviews and the Future of SEO. Moz.com.
  6. Perplexity AI - an example of an AI assistant that cites sources and can read llms.txt during retrieval.