---
title: "What Are llms.txt and Markdown Mirrors?"
description: "llms.txt is an experimental community proposal for a concise Markdown map of a website; Markdown mirrors are plain-text versions of canonical HTML pages."
canonical: "https://gscpulse.behlul.com/glossary/llms-txt-markdown/"
language: "en"
updated: "2026-08-06"
robots: "noindex, follow"
---

[Home](/)›[Glossary](/glossary/)›What Are llms.txt and Markdown Mirrors?

GSC Pulse

# What Are llms.txt and Markdown Mirrors?

llms.txt is an experimental community proposal for a concise Markdown map of a website; Markdown mirrors are plain-text versions of canonical HTML pages.

## Why it matters

They may help systems that choose to consume the convention retrieve cleaner context and navigate important documentation.

## How to use it

Publish a root /llms.txt with curated links, keep canonical HTML available, maintain mirrors with the same facts, and prevent duplicate search results when appropriate.

## Limits and interpretation

Google says it does not use llms.txt or special AI files for Search rankings or generative AI inclusion. The convention is optional and not a standard ranking factor.

## Common mistakes

Publishing stale mirrors; hiding different content in Markdown; claiming Google benefit; placing every low-value URL in llms.txt; blocking the canonical HTML.

## Questions people also ask

[What should llms.txt contain?](/faq/)[Why use index.html.md?](/faq/)[Should Markdown mirrors be indexed?](/faq/)

## Where GSC Pulse fits

GSC Pulse uses this concept inside a decision workflow and links to the underlying evidence instead of presenting the term as a decorative metric.

[Primary documentation](https://github.com/AnswerDotAI/llms-txt)Source

### Use the concept in a real portfolio review

Install GSC Pulse or continue with the related methodology and guides.

[Add to Chrome](https://chromewebstore.google.com/detail/gsc-pulse-%E2%80%93-google-search/namkhkodekmjikapbmbcpaahheokokhm) [Methodology](/methodology/)

**Related definitions**[Glossary](/glossary/)[FAQ](/faq/)[Related guide](/blog/ai-search-visibility-search-console/)