The short answer
llms.txt is a plain-Markdown file you publish at yoursite.com/llms.txt that gives AI models a clean, curated summary of your business and links to your most important pages. It's a proposed convention with no standards-body backing, and no major AI provider has publicly confirmed reading it in production as of 2026 — but it's a low-cost, positive signal that takes about 15 minutes to write.
What it is
Think of llms.txt as a robots.txt for meaning instead of access. Where robots.txt tells crawlers what they can fetch, llms.txt tells AI models what your site is and which pages matter — in clean Markdown they can parse without wading through your navigation, banners and scripts.
Does it actually work?
Be honest with yourself
As of 2026, llms.txt is a proposed convention with no standards-body backing, and no major provider has publicly confirmed reading it in production. Treat it as a cheap, sensible bet — not a magic switch.
So why bother? Three reasons: it's ~15 minutes of work, it's a positive low-risk signal if adoption grows, and the act of writing it forces you to state — clearly — what you do and who it's for. That clarity helps every engine, llms.txt or not.
Your site
messy HTML, nav, scripts
llms.txt
clean summary + links
AI model
understands you faster
How to write one (template)
Create a file named llms.txt in your site's root. Keep it short: a title, a one-paragraph summary that includes a specific detail or two, then grouped links.
What to include
- A one-line description of what you do and who it's for.
- One or two concrete specifics — a price, a coverage number, a differentiator.
- Links to your most important pages, grouped under short headings.
What to leave out
- Marketing fluff and superlatives — models want facts, not adjectives.
- Every page on your site. Curate to the handful that matter.
- Anything you wouldn't want quoted verbatim.
Template
# Your Business — one-line tagline. Then a single paragraph: what you do, who it's for, and one concrete detail (price, coverage, a number). Then sections like ## Product and ## Guides, each a short bullet list of - Label: https://yoursite.com/page.
That's it. Publish it, then check it loads at https://yoursite.com/llms.txt. (AIRanQ publishes one too — you can view ours at /llms.txt for a real example.)
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