What Is llms.txt and Should Your Business Add One?

What llms.txt is

llms.txt is a plain-text (Markdown) file you place at the root of your site — yoursite.com/llms.txt — that gives large language models a concise, human-written summary of what your business is and which pages matter most. Think of it as a curated cheat sheet for AI, easier to use than crawling your raw HTML.

How it differs from robots.txt

They’re unrelated. robots.txt controls which crawlers may access which paths (a gate). llms.txt is a positive summary of your content for language models (a welcome mat). They serve different purposes and can coexist — and if you’re weighing whether to block AI crawlers at all, see should you block AI crawlers?

Does it actually do anything yet?

Honestly: adoption is early and no major AI vendor promises to read llms.txt today. So it’s not a magic bullet. But it’s a low-cost, forward-looking signal — it costs nothing to publish, and as AI search grows, a concise authoritative summary at a predictable path can only help. For a small business, the effort-to-upside ratio is good.

What to put in it

• A one-line summary of who you are and who you serve.
• Links to your most important pages (services, pricing, contact).
• Service area, hours, and what sets you apart.
• Your website URL so answers can cite it.

Keep it short and factual — this is a summary, not a sales page.

The easy way to make one

Our free llms.txt generator builds the file from a simple form — fill it in, download, and upload it to your site root.

Where it fits in AI visibility

llms.txt is one small tactic in the bigger picture of getting understood by AI, alongside schema (LocalBusiness schema) and citable content (content AI cites). But a summary file only helps AI find you — what it says about you is shaped by your reviews. Tailwind builds that reputation signal so AI recommends you, not just describes you — see how to get recommended by AI.

Help AI understand your business. See how Tailwind works.