One markdown file at the root of your domain, describing your site in the words you would use yourself — instead of leaving a language model to reconstruct it from your navigation and your footer.
llms.txt was proposed in 2024 and no standards body has ratified it. But it is being used: crawlers request the file, tooling reads it, and providers ship one themselves — Anthropic publishes an llms.txt for its own documentation. "Nobody reads it" is simply wrong.
What is genuinely open is the effect. No provider documents how much weight the file carries when sources are picked, so nobody can put a number on what it earns you. It costs twenty minutes, it breaks nothing, and writing it forces you to state plainly what your product does and what it costs. That is why it carries moderate weight in our score today rather than none — and why that weight goes up as adoption does.
Plain markdown at https://your-domain.com/llms.txt. One H1 with your name, a blockquote summarising what you do, then sections with links. No fixed schema — these are the parts that consistently make sense:
# My Company
> Cloud inventory management for small retailers. Items, documents,
> stock and invoices in one system. Operated in the EU.
## Product
- **Basic** — €29 per month. Item master, documents, one warehouse.
- **Pro** — €79 per month. Multiple warehouses, multi-currency, API.
## Pages
- [Home](https://your-domain.com/)
- [Pricing](https://your-domain.com/pricing) — all plans compared
- [Contact](https://your-domain.com/contact)
## What we do not do
- No payroll, no bookkeeping.
## Contact
hello@your-domain.comAfter a scan we already know your routes, your titles and your page inventory. Trust customers get a generated llms.txt draft from exactly that — review it, adjust the wording, upload it. Every later scan then checks whether it still matches the site.
One tier, one price. There is no separate Web Ready subscription to work out.
Price excl. VAT — added at checkout where applicable. B2B only.