Unlock AI Visibility: Why You Should Add an llms.txt File to Your Website

A simple yet powerful file that could help your coaching business get discovered by AI tools like ChatGPT, Perplexity, and Google’s AI Overviews.

When ChatGPT and other AI tools first exploded onto the scene, a lot of business owners, marketers, and web developers responded with a mix of curiosity and concern. Some were excited. Others were skeptical — even protective. Many websites quickly added code to block AI models from crawling or learning from their content. And honestly, that made sense at the time. It felt like we were all figuring it out as we went.

But fast forward to today, and things have shifted.

AI isn’t going anywhere. In fact, it’s already changing how people search, consume content, and discover new services. Tools like ChatGPT, Perplexity, Claude, and Google’s AI Overviews are quickly becoming a regular part of how your potential clients find answers — and find businesses like yours.

So the question isn’t “Should I be visible in AI search?”
It’s “How can I guide these tools to the right parts of my website?”

That’s where the llms.txt file comes in.

What Is an llms.txt File?

The llms.txt file is a relatively new concept — and no, it’s not a typo. It stands for Large Language Model Search.

Think of it as the AI-era version of robots.txt. Instead of telling Google what to crawl, it tells AI models (like ChatGPT, Claude, Perplexity, etc.) what they can access on your site — and how to interpret it.

There are currently two kinds of llms.txt files:

  1. Crawler permission file — tells AI bots what they can or can’t access (like User-Agent: openai)
  2. Content discovery file — written in Markdown, it helps AI tools understand your business, offerings, and key content.

If you’re a coach or service provider who wants your content to show up in AI-generated answers, this file is a smart move.

Why It Matters for AI Search

AI assistants and search tools are quickly becoming the go-to way people find information — including coaches and services like yours.

These tools don’t just pull from top search results anymore. They read content directly from websites and use it to:

  • Summarize answers
  • Recommend services
  • Link to helpful content

An llms.txt file gives you a way to opt in to this shift and tell AI tools:

“Hey, here’s what you can use from my site — and here’s where to find it.”

What You Can Control with llms.txt

Depending on the type you use, you can control:

  • Which AI companies can crawl your content (OpenAI, Anthropic, Google, etc.)
  • Which pages are accessible or restricted
  • Whether your content can be used for AI training, indexing, or both
  • How language models interpret your services, products, and brand values

Is It Helpful for SEO or Visibility in AI Tools?

Short answer: Yes — especially if your goal is to show up in tools like:

  • ChatGPT with browsing
  • Google AI Overviews
  • Perplexity.ai
  • Claude (Anthropic)
  • Meta AI and others

It’s not a magic ticket to ranking, but it:

  • Signals your content is available for indexing
  • Improves the chance of your site being referenced in AI-generated answers
  • Helps AI tools describe your business accurately

Should You Add It to Your Website?

Absolutely — especially if your content is designed to attract leads, grow visibility, or establish expertise.

Here’s how to do it (with examples):

Step 1: Create a plain text file named llms.txt

Paste this into the file:

User-Agent: *
Allow: /

User-Agent: openai
Allow: /

User-Agent: google-extended
Allow: /

User-Agent: anthropic
Allow: /

User-Agent: perplexity
Allow: /

User-Agent: cohere
Allow: /

User-Agent: facebook
Allow: /

User-Agent: duckduckgo
Allow: /

This version gives full access to major AI crawlers.

Step 2: Upload it to your site’s root folder

Just like robots.txt, it should live at:
https://yourdomain.com/llms.txt

If you’re using a hosting panel or FTP, just drag and drop it into the public folder.

Step 3: (Optional) Create a second file in Markdown

This one helps AI models better understand what your business offers.

Example:
https://yourdomain.com/llms-map.md

In this file, you can list:

  • Who you help
  • Your services
  • Links to your key content (blog, services, contact page, etc.)

You can also create a complete hybrid version that combines both Crawler Access and Markdown Content Map in a single llms.txt file. But by separating the two, it’s cleaner, more scalable, and easier to manage — especially as your website grows. It’s also the approach many AI-friendly developers and business owners are starting to prefer.

How to Enable llms.txt with Yoast SEO

If you’re using the Yoast SEO plugin (free or premium), the good news is — you already have access to llms.txt support without needing to do anything manually.

Yoast will automatically:

  • Generate an llms.txt file for your site
  • Detect and highlight your most important and recently updated content
  • Refresh the file weekly to keep it current
  • Support AI tools like ChatGPT, Gemini, and others in understanding and indexing your content

You can also preview the file before publishing and decide if you want to let Yoast handle it for you or manually customize it.

How to Enable It:

  1. Make sure you have the latest version of Yoast SEO
  2. Navigate to SEO → Settings → Site features
  3. Enable the llms.txt option
  4. Review your file or manage your own version (optional)

This is one of the easiest ways to future-proof your website for AI-driven search without needing any technical skills.

 Want full control? You can still create your own custom llms.txt file and upload it manually if you’d prefer to decide exactly what’s included.

Considerations Before You Add One

  • Not all AI companies follow llms.txt yet — but many are starting to.
  • It’s still early days, so this is more about being ahead of the curve than guaranteed results.
  • If you don’t want your content used in AI tools, you can use the same file to block crawlers (e.g., Disallow: /).

For most coaches and service providers, the goal is visibility, so it’s better to allow.

TL;DR

Here’s the quick version:

  • llms.txt is a simple text file that helps AI tools understand what content they can access on your website.
  • It’s like robots.txt, but for ChatGPT and other AI search engines.
  • Adding one can boost your visibility in AI-generated answers.
  • There are two versions: one for crawler rules, and one for content mapping.
  • It’s easy to set up, and smart to do — especially for coaches and service-based businesses who want to stay visible as search evolves.

Final Thoughts

Search is changing. People aren’t just typing into Google anymore — they’re asking AI assistants for help, advice, and recommendations.

If you’re a coach or service provider who wants to stay discoverable, now’s a great time to prepare your site for this next wave.

Need help creating or uploading your llms.txt? Let me know — I’d be happy to guide you through it.

Let’s make sure your coaching business stays visible — not buried.

I design strategic WordPress websites for coaches and consultants for coaches and consultants who want to be seen, trusted, and remembered — even in the age of AI.

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