llms.txt Generator + Validator
Build a spec-compliant llms.txt for your site in minutes, or paste an existing one to validate its format.
How to use
Fill in your site details
Name, one-line summary, and your key pages with a short description each.
Generate llms.txt
A clean, spec-compliant file ready to publish at yoursite.com/llms.txt.
Validate an existing one
Switch tabs to paste an existing llms.txt and check its format.
llms.txt
Publish this at /llms.txt on your site root.
What this tool does
- Generate: builds a spec-compliant llms.txt from your site name, one-line summary, and a list of key pages with descriptions — ready to publish at
yoursite.com/llms.txt. - Validate: checks an existing llms.txt against the format — a single “# Title” opening line, a “>” summary blockquote near the top, and “- [Title](url): description” link lines — and flags malformed link lines missing a full URL.
- This is the exact tool CWA Europe uses on its own domain — see cwa-europe.eu/llms.txt, generated from the live tool registry rather than typed by hand.
Related tools
- AI Crawler Access Auditor — llms.txt only helps if AI crawlers can reach your site at all — check that first
- Robots.txt & Meta Robots Tester — The older, related file that controls crawling rather than AI discovery
- Website Check — A broader AI-scored review of design, SEO and usability while you are auditing the site
Last updated: 19 August 2026 · Built by the CWA Europe PPC team.
Frequently asked questions
What is llms.txt?
A proposed standard, plain-text file at yoursite.com/llms.txt that gives AI assistants a clean, curated summary of your site and its key pages — similar in spirit to robots.txt or sitemap.xml.
Is llms.txt an official Google/AI-provider standard?
No — it is a community-proposed convention, not officially required by any AI provider. Adopting it is low-cost and increasingly common, but optional.