llms.txt Generator & Checker
Give AI assistants a clear map of your site
Generate a clean llms.txt from your real sitemap with AI, or check the one you already have. Free, no signup.
Free · reads your real sitemap · no signupAI is not switched on for this tool yet, so the file is built with rules from your real pages (titles, descriptions and URL structure).
We read your robots.txt, sitemap and a sample of pages once, like a crawler. Pages set to noindex, broken pages and obvious junk URLs are left out.
What do you want to check?
Your llms.txt
You can edit the text above before you copy it. Save it as llms.txt (UTF-8) and upload it to your site root so it loads at yourdomain.com/llms.txt.
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Honest expectations: llms.txt is a proposed convention, not an official standard, and no major AI company has confirmed that it reads the file to rank or cite sites. It is cheap to publish and useful as a clean, curated map of your content, but treat it as a small supporting step, not a ranking switch.
How to use the llms.txt Generator & Checker
- Open the Generate tab, enter your website address and choose how many pages to include.
- Optionally describe the site in a few words and keep Write with AI ticked for a cleaner summary and page notes.
- Click Generate llms.txt, review the result, edit anything you like and copy or download it.
- Upload the file to your site root so it loads at
yourdomain.com/llms.txt. - Switch to the Check tab to validate the live file, or paste a draft first, and fix anything marked Fix or Review.
About the llms.txt Generator & Checker
llms.txt is a plain-text Markdown file that sits at the root of a website, at /llms.txt, and gives large language models and AI assistants a short, curated map of the site: what it is, and which pages are worth reading first. The format was proposed at llmstxt.org. It starts with a single H1 title, usually followed by a one-sentence blockquote summary, then H2 sections that hold lists of links written as - [Page title](https://example.com/page): short note. A section named Optional marks pages an assistant can skip when it needs a shorter context.
This llms.txt generator reads your real robots.txt and XML sitemap, picks a balanced sample of pages across your site, loads each page to read its title and meta description, drops anything that is broken or set to noindex, and groups the rest into sections such as Docs, Blog, Products or Company. With AI switched on, the summary, section names and one-line notes are written for you, but the AI is only allowed to use URLs that were actually found, so it cannot invent pages. Without AI, a rule-based version is built from the same real data.
The llms.txt checker loads /llms.txt from your domain, or checks text you paste in, and validates it against the format: a real text file rather than an HTML error page, a single H1 at the top, a summary, clear sections, correctly formatted links, absolute URLs, file size and encoding. It then tests the linked URLs so you can find broken or redirected links before an AI tool does, and reports whether an optional llms-full.txt exists.
Be realistic about the benefits. llms.txt is a community proposal, and the large AI providers have not confirmed that they use it for ranking or citations. Publishing one costs very little and gives you a tidy summary of your most important content that people and tools can read, so many sites treat it as a low-effort extra. Real AI visibility still depends on crawlable pages, clear answers, trustworthy content and allowing the right crawlers in robots.txt.
Frequently asked questions
What is an llms.txt file?
It is a Markdown text file published at the root of your site (yourdomain.com/llms.txt). It summarizes the site and lists its most important pages so AI assistants can understand it quickly.
Does llms.txt improve my rankings or get me cited by ChatGPT?
There is no confirmed evidence that major AI systems use it to rank or cite sites. It is a proposed convention. It is low effort to publish and helps organize your key content, but it is not a ranking factor you can rely on.
Where do I put the llms.txt file?
Upload it to the root of your domain so it loads at https://yourdomain.com/llms.txt, served as plain text or markdown in UTF-8.
What is the difference between llms.txt and llms-full.txt?
llms.txt is a short curated index with links. llms-full.txt is an optional companion that holds the full text of key documentation in one file. You only need it if you want to publish that full text.
How does the generator choose which pages to include?
It reads your sitemap (or homepage links if there is no sitemap), removes junk URLs such as tag pages, carts and logins, samples pages across your site sections, checks that each page loads and is not noindex, then lists them with their real titles and descriptions.
Can the AI make up pages or facts?
No page can be invented. The AI may only choose from URLs that were found on your site, and anything it leaves out is kept under an Optional section. Always read the summary and notes before publishing.
What does the checker test?
File exists, content type, size, UTF-8, H1 title, summary blockquote, H2 sections, link format, absolute URLs, duplicates, and whether the linked pages load or redirect.
Is my data stored?
The tool fetches public pages to build or check the file. Finished files are not saved on the server. Only use public sites.