Frequently Asked Questions (FAQ) 

What is llms.txt? 

llms.txt is an emerging standard for providing AI and Large Language Model (LLM) crawlers with structured information about a website. It helps AI systems understand your website's content and structure. See the llmstxt.org specification for details.

Why should I use this extension? 

• Better AI understanding of your website content
• Structured access for chatbots and RAG systems
• Clean Markdown output without navigation, scripts, or styling
• Multi-language support out of the box
• Optional protection with API keys

I get a 404 error when accessing /llms.txt 

Make sure you have:

1. Added the Site Set to your site configuration
2. Cleared all caches: vendor/bin/typo3 cache:flush

See Activate the Site Set for details.

The LLM tab doesn't appear in page properties 

1. Verify the extension is installed: vendor/bin/typo3 extension:list
2. Clear the system cache
3. Log out and log back into the TYPO3 Backend

How do I exclude specific pages? 

You have two options:

1. Site Settings: Add page UIDs to llmsTxt.excludePages (comma-separated)
2. Per Page: Check "Exclude from llms.txt" in the page's LLM tab

How does the priority setting work? 

Pages with higher priority values (0-100) appear earlier in the llms.txt page list. Use this to highlight important pages for AI crawlers:

• 80-100: Main landing pages
• 50-70: Important content
• 20-40: Secondary pages
• 0-10: Low priority

Can I include hidden pages? 

Yes, enable llmsTxt.includeHidden in the Site Settings. This is useful for staging environments.

How do I access the root page as Markdown? 

Use /index.html.md or /.md:

https://example.com/index.html.md

How do I access translated pages? 

Use the language prefix with the .md suffix:

# English
https://example.com/en/about.md

# German
https://example.com/de/ueber-uns.md

How do I refresh the cached content? 

Clear the TYPO3 cache:

vendor/bin/typo3 cache:flush

Or in DDEV:

ddev typo3 cache:flush

Which HTTP header should I use for the API key? 

Use X-LLM-API-Key:

curl -H "X-LLM-API-Key: your-key" https://example.com/llms.txt

Can I use a query parameter instead? 

Yes, use api_key:

https://example.com/llms.txt?api_key=your-key

However, HTTP headers are recommended for security reasons.

The Markdown output is empty 

• Check if the page has content elements
• Verify the page is not excluded from llms.txt
• Clear all caches

Content shows in wrong language 

• Verify your site language configuration
• Check if translations exist for the page
• Use the correct language prefix in the URL

Some content elements are missing 

The extension filters out:

• Navigation elements
• Footer content
• Scripts and styles
• Empty elements

If a specific content type is missing, you may need to create a custom converter. See Creating Custom Converters.