What is llms.txt — and why your website needs one

There is a small text file that tells AI engines exactly what your business does, what it costs, and where to find the details — and most websites don't have it. It's called llms.txt, it takes an afternoon to create, and it exists because of an uncomfortable truth: the AI systems your customers now ask for recommendations are terrible at reading the average small-business website.

The problem it solves

Modern websites are built for human eyeballs: JavaScript menus, image-heavy pages, pricing hidden behind "get a quote" forms. AI engines skimming the web for answers have a limited window to understand you — and when they can't parse what you do or what you charge, they don't guess generously. They hedge ("I don't have detailed information…") or they recommend the competitor whose facts they could read. An AI engine can't recommend what it can't understand.

What llms.txt actually is

Proposed in September 2024 by Jeremy Howard of Answer.AI (llmstxt.org), llms.txt is a plain-markdown file at your site's root — yourbusiness.com/llms.txt — that gives AI systems a clean, structured summary: what the business is, who it serves, key services with real prices, and links to the pages that matter. Think of it as robots.txt's younger sibling: robots.txt tells crawlers where they may go; llms.txt tells AI what your business actually is.

What belongs inside

A good llms.txt reads like a well-organized briefing: a one-paragraph summary of the business; your services with real, numeric prices; service area and languages; and links to key pages (services, pricing, FAQ, contact). Its best companion is a machine-readable pricing file — a simple pricing.md listing every offer with its price. Transparent numbers matter: when an AI agent is comparing providers for a user, opaque "contact us for pricing" pages are the easiest ones to drop from the answer.

The rest of the AI-readable layer

llms.txt works best as part of a stack, and the other layers are just as unglamorous: robots.txt access for AI crawlers (GPTBot, ClaudeBot, PerplexityBot, Google-Extended — if they're blocked, you've opted out of being recommended); JSON-LD structured data so engines get your name, hours, services, and prices as verified fields rather than prose to interpret; and FAQ markup matching visible questions and answers on your pages. Princeton research presented at KDD 2024 found structured, citable, statistic-rich content measurably increases the odds of being cited in AI answers.

Honest expectations

Is llms.txt an official standard every engine has committed to? Not yet — it is an emerging convention with growing adoption, especially among AI-forward companies. But every part of the AI-readable layer is also just… good publishing: machine-readable facts, transparent pricing, accessible crawling. The downside is an afternoon of work. The upside is being the business the engines can actually describe — while your competitors stay unreadable.

Do it yourself, or done in 48 hours

The DIY route: read the spec at llmstxt.org, write the file in any text editor, add a pricing.md, check your robots.txt, and validate your structured data. If you'd rather not touch any of it, our AI-Readable Business Setup ships the whole layer — llms.txt, machine-readable pricing, JSON-LD entity schema, FAQ markup, and crawler access — for $497, done in 48 hours. And if you want to know whether it's your actual bottleneck first, check what AI currently says about you — it takes ten minutes.

Is llms.txt an official web standard?

Not yet. It is an emerging convention proposed in September 2024 by Jeremy Howard of Answer.AI, documented at llmstxt.org, with growing voluntary adoption. It costs little to implement and makes your site easier for AI systems to summarize accurately.

What is the difference between llms.txt and robots.txt?

robots.txt controls where crawlers may go — access. llms.txt tells AI systems what your business actually is — content. A complete AI-readable setup needs both: crawler permissions in robots.txt and a clean structured summary in llms.txt.

Does Google use llms.txt?

Google has not committed to llms.txt for Search or AI Overviews; Google's systems rely primarily on your crawlable pages and structured data. Other AI tools and crawlers increasingly read the file, and its contents strengthen how any engine summarizes you.

What is pricing.md?

A companion file: a plain-markdown price list at your site's root with every service and its real numeric price. AI agents comparing providers favor businesses whose pricing they can parse — opaque pricing is the easiest reason to leave you out of an answer.