llms.txt – AI SEO & Search Engine Optimization Directory

We've curated 1,300+ websites using llms.txt to improve AI-driven search and SEO optimization. By implementing llms.txt, site owners save time on content generation, gain more organic traffic and strengthen their AI SEO strategy. Whether you're focused on keyword research, link building or optimizing content for search engine optimization our directory helps you stay ahead.

Live token counts

Verified implementations

Updated daily

Browse Directory Submit Your Website

1321 results

llms.txt

A proposal to standardise on using an /llms.txt file to provide information to help LLMs use a website at inference time.

/llms.txt

318 tokens

Websites

Anthropic

Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.

/llms.txt

15,391 tokens

/llms-full.txt

895,240 tokens

Perplexity

Perplexity AI is an AI-powered search engine that provides direct answers to user queries by leveraging large language models.

/llms.txt

1,173 tokens

/llms-full.txt

40,087 tokens

Cloudflare

Make employees, applications and networks faster and more secure everywhere, while reducing complexity and cost.

/llms.txt

78,216 tokens

/llms-full.txt

3,915,523 tokens

Developer tools

Vercel AI SDK

The AI Toolkit for TypeScript, from the creators of Next.js.

/llms.txt

136,985 tokens

Developer tools

Dell Technologies

Shop Dell's laptops, Monitors, Computers, Storage Solutions & Servers for your home and business. Buy online!

/llms.txt

8,533 tokens

AI & Technology

sbthemes

/llms.txt

1,164 tokens

/llms-full.txt

1,167 tokens

Websites

Cursor

The AI Code Editor

/llms.txt

4,643 tokens

/llms-full.txt

95,589 tokens

ElevenLabs

Create the most realistic speech with our AI audio in 1000s of voices and 32 languages. Pioneering research in Text to Speech and AI Voice Generation

/llms.txt

23,168 tokens

/llms-full.txt

1,020,683 tokens

Coinbase

Buy & Sell Bitcoin, Ethereum, and more with trust.

/llms.txt

11,449 tokens

Finance

Model Context Protocol

Get started with the Model Context Protocol (MCP).

/llms.txt

3,315 tokens

/llms-full.txt

223,365 tokens

Hugging Face Transformers

State-of-the-art Machine Learning for PyTorch, TensorFlow, and JAX.

/llms.txt

1,621,577 tokens

Hugging Face Diffusers

Diffusers is the go-to library for state-of-the-art pretrained diffusion models for generating images, audio, and even 3D structures of molecules.

/llms.txt

765,233 tokens

Hugging Face Accelerate

Accelerate is a library that enables the same PyTorch code to be run across any distributed configuration by adding just four lines of code! In short, training and inference at scale made simple, efficient and adaptable.

/llms.txt

164,085 tokens

Hugging Face Hub

The Hugging Face Hub is a platform with over 900k models, 200k datasets, and 300k demo apps (Spaces), all open source and publicly available, in an online platform where people can easily collaborate and build ML together.

/llms.txt

419,885 tokens

Hugging Face Hub Python Library

The official Python client for the Huggingface Hub.

/llms.txt

143,619 tokens

Mintlify

Meet the modern standard for public facing documentation. Beautiful out of the box, easy to maintain, and optimized for user engagement.

/llms.txt

5,436 tokens

/llms-full.txt

181,290 tokens

Developer tools

Svelte

Web development for the rest of us.

/llms.txt

602 tokens

/llms-full.txt

453,623 tokens

Developer tools

PlayAI

The Voice AI Platform: TTS Models, Voice Agents, & More.

/llms.txt

1,738 tokens

/llms-full.txt

56,923 tokens

Zapier

Workflow automation software for everyone. Automate your work across 7,000+ app integrations—no developers, no IT tickets, no delays.

/llms.txt

27,156 tokens

/llms-full.txt

529,536 tokens

Products

Answer.AI

Answer.AI is a new kind of AI R&D lab which creates practical end-user products based on foundational research breakthroughs.

/llms.txt

354 tokens

Pinecone

Search through billions of items for similar matches to any object, in milliseconds. It’s the next generation of search, an API call away.

/llms.txt

15,715 tokens

/llms-full.txt

588,629 tokens

Developer tools

Trigger.dev

Build and deploy reliable background jobs with no timeouts and no infrastructure to manage.

/llms.txt

12,202 tokens

/llms-full.txt

387,586 tokens

Developer tools

Turso

Get the simple developer experience of SQLite in production, and scale your multi-tenant backend with unlimited databases.

/llms.txt

10,006 tokens

/llms-full.txt

163,317 tokens

Developer tools

1 2 3 4...56

AI SEO and llms.txt: Why This Matters Right Now

If you've been working in SEO or digital marketing for a while, you've probably noticed how quickly things are shifting. Google updates used to be the big worry. Now? It's AI search engines like Perplexity or even when someone asks ChatGPT about your brand. The search volume for AI-related queries has exploded, and your target audience is increasingly turning to these platforms for high quality information.

The tricky part is that these systems don't crawl the web like Google does. They need a little help. That's where llms.txt comes in — it's a simple file, but it can guide AI systems on how to use your content. This creates an AI overview of your site that helps these systems understand your content better.

Why Add Another File?

I'll be honest: the first time I heard about llms.txt, I thought, “Great, another SEO thing to keep track of.” But after digging in, it started making sense.

Perplexity AI pulls answers directly from sources. If your site has an llms.txt file, you have a better shot at being one of those sources.
Developers I know have tested it with Anthropic's Claude and noticed the model "respects" those signals more than raw scraping.
A mid-sized SaaS company we checked saw a 15% bump in organic traffic from AI search mentions after adding llms.txt.

It's not magic, and it won't replace your usual SEO strategy like link building or keyword research. But it fills a gap that old tools like robots.txt just weren't built for. Plus, it helps your content reach your target audience through social media sharing and AI-powered discovery.

How It Fits Into Real SEO Workflows

If you're already managing Google Search Console, publishing content, or optimizing pages, adding llms.txt is a low-lift task.

Think of it like this:
SEO optimization → tells Google what to index.
llms.txt optimization → tells AI what’s safe and useful to learn from.

The nice thing is, it also saves time. Instead of answering the same “Can AI use my site?” question in endless ways, you set the rules once.

A Quick Tangent on Content Creation

One interesting side effect: I’ve seen writers and creators start using their own llms.txt files almost like a portfolio. Instead of just hoping AI systems cite them, they’re structuring their best content to be “AI-ready.”

It reminds me a bit of when sitemaps first started gaining traction — at first, only the technical folks cared. Then marketers realized it gave them more control. I think llms.txt is on that same path.

Getting Started Without Overthinking It

Create a plain text file named llms.txt.
Add a few clear lines about what AI can or can’t use.
Upload it to your site’s root directory (just like robots.txt).

That’s it. No special tool required — though there are free generators if you’d rather not hand-write it.

Will it solve every AI SEO challenge? Probably not. But it’s one of those small, forward-looking moves that could pay off, especially as AI-driven search keeps growing.

Next Step

If you already have llms.txt set up, consider submitting your site to our directory. And if not, maybe block 15 minutes this week to try it out. Worst case, you’ll learn something new. Best case, you’ll get your content positioned for the future of search engine optimization.