What is an llms.txt file?

llms.txt is a plain-text/Markdown file at the root of your site (yourdomain.com/llms.txt) that tells LLM-based answer engines — ChatGPT, Perplexity, Claude, Google AI Overviews — which pages matter and how your site is structured. It was proposed in September 2024 by Jeremy Howard and is the AI-era analog of sitemap.xml.

Is this llms.txt generator free?

Yes. The generator is completely free with no signup. It drafts a starter llms.txt from your homepage that you can copy or download. The paid $24 Pro Report adds a full llms-full.txt, a robots.txt AI-crawler patch, JSON-LD structured data, and an AI-Ready badge.

Where do I put the llms.txt file?

At the root of your domain, exactly like robots.txt: https://yourdomain.com/llms.txt. Serve it with content-type text/plain or text/markdown. There is no subdomain fallback — each subdomain needs its own file.

Do I need to edit the generated file?

Usually yes. The generator drafts a summary and a starter set of key pages from your homepage. Edit the links so they point to your real, most important URLs (docs, pricing, product, key articles) before you publish.

What is llms-full.txt?

llms-full.txt is a companion file that ships the full text of the pages linked from llms.txt so LLMs can ingest your whole site in one request. It is optional but recommended for docs and knowledge bases. The AICite Pro Report generates one for you.

Free llms.txt Generator — build your llms.txt in seconds

How it works

Enter your URL. The generator fetches your homepage live and reads its title, description, and structure.
Review & edit. You get a valid starter llms.txt — a one-line summary plus a "Primary content" list. Swap the placeholder links for your real key pages (docs, pricing, product, top articles).
Ship it. Upload the file to https://yourdomain.com/llms.txt, served as text/plain or text/markdown. That's it — AI crawlers can find it immediately.

Tip: The single highest-weighted signal in an AI-search audit is simply having an llms.txt. Even a short, hand-edited file beats none. Run the free A–F audit to see every signal you pass and fail.

What goes in a good llms.txt

The llms.txt spec is deliberately simple — it's Markdown. A strong file has:

An # H1 with your site or product name.
A > blockquote summary — one or two sentences an LLM can quote verbatim.
A ## Primary content section: your most important pages, each as a Markdown link with a short description.
Optional ## Optional section for secondary pages an LLM can skip when short on context.

For the full walkthrough — what each section does and the mistakes that make crawlers ignore your file — read What is llms.txt? The 2026 guide.

FAQ

Is this generator free?

Yes — completely free, no signup. It drafts a starter llms.txt from your homepage you can copy or download. The $24 Pro Report adds llms-full.txt, a robots.txt patch, JSON-LD, and an AI-Ready badge.

Where do I upload the file?

At the root of your domain, like robots.txt: https://yourdomain.com/llms.txt. Serve it as text/plain or text/markdown. Each subdomain needs its own file.

Do I have to edit what it generates?

Usually yes. The draft uses your homepage summary plus a placeholder page list. Replace the links with your real, most important URLs before publishing so answer engines cite the right pages.

Which AI crawlers actually read llms.txt?

Adoption is early and growing. Rather than relying on any single crawler, llms.txt is a low-cost, standards-based signal that pairs with robots.txt AI policy and sitemap.xml. See how the three files differ.

Built by AICite — the free A–F audit for how AI answer engines see your site. Generate your file above, then grade your whole site free.