Publish and Manage llms.txt for AI Visibility

llms.txt is a plain text file that describes your site’s structure and content for AI models, answer engines, and AI-assisted research tools. Publishing an llms.txt file helps these systems understand what your site offers, how content is organized, and which pages are most important — improving how your content appears in AI search results, AI Overviews, ChatGPT, Gemini, Perplexity, Claude, and similar platforms.

Where to find it

Go to SEOvault AI > General > llms.txt.

How it works

When you enable llms.txt, SEOvault AI serves the file at https://yoursite.com/llms.txt. AI crawlers and answer engines can request this file to learn about your site structure, content hierarchy, and important pages. The file is served as plain text with the correct Content-Type header.

You can also publish a full version at llms-full.txt for more detailed site documentation.

Enable llms.txt

Go to SEOvault AI > General > llms.txt
Enter your llms.txt content in the text area
Click Save Changes
The file is automatically published at /llms.txt

The content is sanitized before storage to ensure it’s valid plain text. HTML tags and special characters are handled appropriately.

llms.txt content format

llms.txt uses a simple plain text format. While the exact specification evolves, typical content includes:

Site description — what your site is about
Content structure — main sections, categories, or topic areas
Important pages — key URLs like homepage, about, contact, flagship content
Content guidelines — what type of content you publish, update frequency
Authorship information — who creates your content, expertise areas

Example structure:

# Site Description
Your site name and what it offers.

# Content Structure
- /blog/ - Articles and tutorials
- /products/ - Product pages
- /about/ - Company information
- /contact/ - Contact page

# Important Pages
Homepage: https://yoursite.com/
About: https://yoursite.com/about/
Flagship content: https://yoursite.com/your-best-article/

# Content Guidelines
We publish weekly articles about [topic].
Content is updated regularly.
Authors are experts in [field].

Full vs standard llms.txt

SEOvault AI supports two versions:

llms.txt — Standard version for general AI visibility
llms-full.txt — Extended version with more detailed documentation

Use the full version when you want to provide comprehensive site documentation for AI systems that can handle larger files. The standard version is sufficient for most sites.

Preview before publishing

Before saving, you can preview how your content will appear. The preview shows the sanitized plain text output, so you can verify formatting and content before publishing.

Served-by header

When llms.txt is served, it includes an X-Served-By header indicating that SEOvault AI is serving the file. This helps with debugging and verification.

Disable llms.txt

To stop serving llms.txt:

Go to SEOvault AI > General > llms.txt
Clear the content field
Click Save Changes

The file will return a 404 response when requested.

Privacy and security

llms.txt is a public file — anyone can request it. Only include information you’re comfortable sharing publicly. Don’t include:

Internal admin URLs
Private API endpoints
Sensitive business information
Personal data

The file is designed to help AI systems understand your public content, not expose internal systems.

Best practices

Keep llms.txt focused on your public content structure
Update it when you make major site changes or add new content sections
Use clear, descriptive language that AI systems can understand
Link to your most important and authoritative pages
Keep the file reasonably sized — most AI systems prefer concise documentation
Test your llms.txt by visiting https://yoursite.com/llms.txt in a browser