llms.txt is the file AI models look for first — a plain-English index of what's on your site and what matters. Paste your URL and we'll write one for you, free, in seconds.
We read your homepage only — nothing is stored.
Add this at yoursite.com/llms.txt — the root of your domain — so ChatGPT, Claude and Perplexity can find it.
Free, one-off read of your public homepage. No account, no crawl of the rest of your site.
llms.txt is an emerging, still-informal standard — a short markdown file at the root of your domain that tells AI crawlers what your site is, what it offers, and which pages matter most. Not every AI company reads it yet, but the ones that do use it to save time working out what you're about. It costs nothing to add and it can only help.
It's one signal, not the whole picture. Whether AI crawlers can even reach your site, whether your pages render without JavaScript, whether you carry the structured data these systems actually cite — that's a bigger question than one file answers.
llms.txt is one signal out of dozens — crawler access, structured data, page speed and more. Get the free human-checked snapshot.
Get your free AI visibility snapshot