Free tool
Answer six questions and copy the file. It is a short plain-text summary of your business that lives at yourdomain.co.uk/llms.txt, and it is the only place you get to write your own description rather than have one inferred from your marketing copy.
Save as llms.txt in your web root
# Your business name
Runs in your browser. Nothing you type is sent to us or stored. Upload the file so it is reachable at yourdomain.co.uk/llms.txt.
llms.txt is an emerging convention. No engine or assistant has confirmed it reads one, there is no evidence it affects search ranking, and anybody telling you it is a ranking factor is guessing. We publish one and we still say this, because selling you a benefit nobody has demonstrated would be the same behaviour this studio criticises elsewhere. The honest case is smaller and still worth an hour: it costs almost nothing, and it is the one place your own words are the source. If the convention takes hold you are ready. If it does not, you have lost an hour.
A short, plain-text summary of your business at yourdomain.co.uk/llms.txt. What you do, what it costs, where you work, which pages matter. It is the one place you get to write your own description rather than have one assembled from whatever an assistant happened to read.
Because that would defeat the point. A crawler would produce an inferred summary, and an inferred summary is exactly the thing the file exists to replace. It asks you instead. The output is only as good as what you type, which is correct, because you are the only one who knows what you actually want said.
It is the field almost everyone leaves out and the one most likely to be useful. Somebody asking an assistant for a supplier is very often asking what it costs. If your file does not say, the answer comes from somewhere else or does not come at all. A range, or a starting figure, is far better than nothing.
The web root, so it resolves at yourdomain.co.uk/llms.txt as plain text. Not in a subfolder, not behind a redirect, not returning your homepage when the file is missing, which is a common host default and makes an absent file look present. Keep it short. A file nobody maintains is worse than none.
Once it is live, the AI crawler checker will confirm it is reachable, and tell you whether the assistant crawlers are allowed to read your site in the first place.
