/llms.txt is a plain-text file at the root of a domain that summarizes the pages, products, services, and policies an AI crawler should understand first. It does not replace your website, sitemap, or robots.txt. It gives answer engines a clean map of what matters.
What belongs in /llms.txt
A good /llms.txt file is short, factual, and maintained. It should point to your most useful pages, explain who the business serves, describe the offer in plain language, and include any pages that answer common customer questions.
Avoid turning it into a keyword dump. AI systems need a trustworthy summary, not a wall of repeated search terms.
Why deployment matters
Many teams write an /llms.txt draft and never ship it, or they ship it once and let it drift out of sync. That weakens the signal because the file stops matching the live site.
Nudle's Pro workflow generates the file, deploys it through Cloudflare, and keeps it tied to lift tests so you can see whether the change improves AI citation coverage.
How /llms.txt fits with schema
Structured data explains page-level entities and relationships. /llms.txt explains the site-level map. They work best together: schema helps a crawler parse a page, while /llms.txt tells it which pages deserve attention first.
Frequently asked
Does /llms.txt guarantee AI citations?
No. It is a guidance file, not a ranking guarantee. It can improve clarity, but citations still depend on content quality, authority, crawlability, and whether the page answers the prompt.
Is /llms.txt the same as robots.txt?
No. robots.txt controls crawler permissions. /llms.txt summarizes what a site is about and points AI crawlers toward the pages most useful for answer generation.