Endpoints 

All URLs below are answered for every site that uses the site set. For a site with the languages /de/ (default) and /en/:

URL Content
/llms.txt Index of the default language (same as /de/llms.txt)
/de/llms.txt, /en/llms.txt Index of one language
/llms-full.txt Full file of the default language (same as /de/llms-full.txt)
/de/llms-full.txt Markdown of all listed pages (and news) of one language
/de/<page>.md One page as Markdown
/de/index.md The root page of the language as Markdown

All text responses use X-Robots-Tag: noindex so that search engines do not index them as duplicates of the HTML pages.

Discovery links 

As recommended by llmstxt.org, every included page points to its Markdown version and to the llms.txt of its language, both in the HTML <head> and as HTTP Link header:

<link rel="alternate" type="text/markdown" title="Markdown" href="https://example.com/de/pricing.md">
<link rel="describedby" type="text/plain" href="https://example.com/de/llms.txt">
Copied! 
Link: <https://example.com/de/pricing.md>; rel="alternate"; type="text/markdown", <https://example.com/de/llms.txt>; rel="describedby"
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The Markdown responses themselves get only the describedby link. Excluded pages get neither.

llms.txt 

  1. Heading with the website title, then the intro of the language (see llms.txt intro per language)
  2. Section with the root page and top-level pages without subpages
  3. One section per top-level page with its subpages (title = page title, or folder title)
  4. Section "Articles": article pages, newest first
  5. Section "News" (only with EXT:news (tx_news))
  6. Section "Languages": links to the llms.txt of the other languages
  7. Section "Optional": link to llms-full.txt

Each entry links the .md URL and adds the LLM description or meta description:

- [Pricing](https://example.org/en/pricing.md): Plans and prices …
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Markdown of a page 

Add .md to the URL of a page. For the root page of a language use index.md. Example output:

---
title: "Pricing"
description: "Plans and prices …"
language: "en"
lastmod: "2026-10-11"
canonical: "https://example.org/en/pricing"
source: "generated"
generator: "TYPO3 si_llms_txt"
---

# Start now …
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source is editor when the field "LLM Markdown" is used.

A .md URL returns 404 (plain text) when the page does not exist, is excluded, or has no translation in that language.

llms-full.txt 

Contains the header and intro of llms.txt and then, for every listed page, a separator, the source URL and its Markdown (without frontmatter). It is built by requesting every .md URL from the server itself and is cached afterwards; the first request after a cache flush takes longer.