// llms.txt

Generate llms.txt for any website.

Paste your URL. SuperMD crawls your homepage and up to 5 linked pages, then generates a spec-compliant llms.txt so any LLM can understand your site.

Website URL

Crawls homepage + up to 5 linked pages. Public URLs only.

// what is llms.txt?

llms.txt is an emerging standard (llmstxt.org) that tells AI models what your site is about and where to find key content — reducing hallucinations when an LLM references your site.

Once generated, host it at yourdomain.com/llms.txt.

Your llms.txt will appear here

// the standard

llms.txt tells AI models how to read your site.

When an LLM is asked about your product, it searches the web, finds your pages, and tries to understand them from raw HTML. Without structure, it often gets things wrong — hallucinating features, confusing your pricing, or missing key information entirely.

llms.txt is a simple markdown file you host at the root of your domain. It gives LLMs a curated, authoritative map of your site — what it is, where to find key pages, and what they contain. The format was proposed by Jeremy Howard (fast.ai) and is supported by an growing number of AI tools.

yourdomain.com/llms.txt

# SuperMD

> The markdown generator for the AI era.
Convert files to LLM-optimized markdown.

## Pages

- [markitdown](/markitdown): Convert PDF, DOCX,
  XLSX, and images to clean markdown
- [claude.md](/claude-md): Generate CLAUDE.md
  from any GitHub repo
- [skill.md](/skill-md): Build Claude Code
  skill files with a guided form
- [Pricing](/pricing): Free tier and Pro plan

// use cases

Which websites benefit most from llms.txt?

Developer tool and SaaS sites

SaaS

Technical products are frequently referenced by LLMs in coding contexts. A good llms.txt ensures Claude and GPT describe your API, your pricing, and your features correctly.

Documentation sites

Docs

Docs sites often have thousands of pages. llms.txt tells LLMs which pages matter most — the getting-started guide, the API reference, the changelog — without crawling everything.

Portfolio and personal sites

Portfolio

When someone asks an AI about you, it should get the right answer. llms.txt gives it your bio, your projects, your contact info, and your work — accurately.

E-commerce and product sites

E-commerce

Product descriptions, pricing pages, and shipping policies are exactly what LLMs get wrong. llms.txt points them directly to the canonical sources.

// the format

The llms.txt spec, explained simply.

The spec is deliberately minimal — just markdown with a few conventions. There's no XML, no JSON, no special encoding. Any LLM can read it directly.

# H1

Site name — exactly one, at the top.

# SuperMD

> Blockquote

Required one-sentence description immediately after the H1.

> The markdown generator for the AI era.

## H2 sections

Group related pages under H2 headings. Each link line: - [Title](url): description.

## Pages
- [Docs](/docs): Full API reference

// faq

Frequently asked questions

Where do I host llms.txt?

Host it at the root of your domain: yourdomain.com/llms.txt. This is the only path that LLMs and crawlers will look for by convention, similar to robots.txt and sitemap.xml.

Who reads llms.txt?

AI tools and LLM-powered search engines that crawl the web, including Perplexity, ChatGPT Browse, and Claude's web tools. As the standard grows, more tools will support it. You can also point users to it directly.

What's the difference between llms.txt and robots.txt?

robots.txt tells crawlers what NOT to index. llms.txt tells AI models what IS important — it's a positive signal rather than a restriction. Both can coexist. llms.txt doesn't replace robots.txt.

What's the difference between llms.txt and a sitemap?

A sitemap lists every URL on your site for search engine indexing. llms.txt is curated — it highlights the most important pages with human-written descriptions. It's for understanding, not exhaustive indexing.

How often should I update llms.txt?

Update it when you launch major new pages, change your pricing, or significantly update your product. Unlike a sitemap, llms.txt is hand-curated, so monthly or quarterly updates are usually sufficient.

Does llms.txt affect my Google SEO?

llms.txt has no direct effect on Google Search rankings — it's not a Google standard. Its impact is on AI-powered tools that reference your site. As AI-generated answers become more common in search, having accurate llms.txt context matters more.