Add an llms.txt file — v0
Most sites do not have llms.txt. Sites that do get cited more often and more accurately by AI tools because the file hands the LLM a clean map of the content.
Fixing this in v0
Vercel AI component and app generator
v0 scaffolds Next.js App Router code — most fixes live in metadata objects and Server Components. Paste the prompt below into your v0 chat and the fix rolls out across the project in one pass.
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The prompt for v0
Copy and paste this into your v0 chat exactly as-is.
Regenerate my v0 component / page with these fixes applied: Publish an llms.txt file 1. Create /public/llms.txt at the site root. 2. Start with `# <Site name>` and a one-paragraph summary of what the site does. 3. List the most important pages as `- [Title](https://full-url): one-line description`, grouped under H2 sections.
Why this matters
llms.txt is to AI what sitemap.xml is to Google — a structured map of your site, but written for LLMs instead of crawlers. It is a proposal by Answer.AI (2024) that has been adopted by Anthropic, Perplexity, and many tools as a first-read file when fetching a site.
The format is simple: a markdown file at `/llms.txt` with a title, a 1-paragraph description of your product, then H2 sections linking to your most important pages with 1-line summaries. Unlike sitemap.xml, which just lists URLs, llms.txt tells the LLM what each URL is for.
Being an early adopter matters. Most sites still do not have one — so you show up in more AI answers relative to competitors just by shipping the file. It takes 15 minutes and ages well.
How to use this prompt in v0
- 1. Open your v0 project.
- 2. Copy the prompt above with the copy button.
- 3. Paste into the v0 chat and send.
- 4. Review the diff, accept the changes, redeploy.
- 5. Verify the fix using the checklist below.
Common mistakes to avoid
- error_outlineWriting llms.txt like a sitemap (just URLs) — the value is in the 1-line summaries.
- error_outlineMaking it too long — 50-200 lines is ideal. A 2000-line llms.txt is ignored.
- error_outlineForgetting to update it when you add/remove pages — stale files are worse than none.
- error_outlineUsing absolute URLs only to other sites — reference your own pages with paths or full URLs.
How to verify the fix worked
- check_circleVisit `https://yoursite.com/llms.txt` — returns markdown text, not 404.
- check_circleRun `curl -H "Accept: text/plain" https://yoursite.com/llms.txt` — confirms the right content type.
- check_circleShare with a friend — ask them to read it and describe your product. If they can, the file works.
- check_circleAsk ChatGPT: "What does X do?" after 2-3 weeks — check if the response aligns with the file.
Frequently asked questions
Is llms.txt an official standard?expand_more
Does llms.txt replace robots.txt?expand_more
Does it help with Google SEO?expand_more
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