Skip to main content
The New SEO: Why Every Website Needs an llms.txt File for GEO / AI Agents
Matt PantaleoneMatt Pantaleone
General
Oct 15, 2025
4 min

The New SEO: Why Every Website Needs an llms.txt File for GEO / AI Agents

Introduction - Why LLMs.txt

For decades, we built websites for two audiences: humans and search engine crawlers (Google). We used HTML/CSS for the humans and sitemap.xml or robots.txt for the crawlers.

But there is a third audience now: AI Agents.

LLMs (Large Language Models) like Claude, ChatGPT, and Groq are browsing the web to answer user questions. When they visit your site, they don't care about your animations, your sticky headers, or your marketing fluff. They want raw, dense context.

If you don't provide it, they hallucinate. They guess. Or worse, they ignore you.

An llms.txt file is the solution. It is a markdown file that acts as a "Read Me" for AI, explaining exactly what your site is, what it does, and how to navigate it.

Why You Need It Now

  • Control the Narrative: Don't let an LLM guess what your business does based on messy HTML. Tell it explicitly.
  • Agentic Ready: If you have tools (like stock screeners or calculators), an llms.txt file tells agents how to use them. This turns your site from a passive brochure into an active tool.
  • Zero Ambiguity: Standard web scraping is messy. Markdown is clean. By providing this file, you ensure your data is ingested 100% correctly.
  • Future-Proofing: As search shifts from "10 blue links" to "AI answers," having this file is the SEO of the future.

The Methodology: Anatomy of a Perfect llms.txt

The goal is scannability. We use Markdown because it is the native language of LLMs.

We recently generated the llms.txt for Pantaleone.net. Here is the breakdown of why we structured it this way:

  • The Hook: A blockquote > with the concise value proposition.
  • The Map: A clear list of routes.
  • The Capabilities: Explicit definitions of tools (like "ProfitSignals") so the AI knows they exist.

The Result

Heres the live example for https://pantaleone.net visible at https://www.pantaleone.net/llms.txt.

# Pantaleone.net

> Driving Growth With Agentic AI & Automation Solutions.

## Overview
Pantaleone.net is an AI consultancy and digital studio focused on building "Agentic AI" and automated foundations for businesses. They design AI agents, workflows, and rapid experiences to automate sales, shipping, and support operations.

## Services
- **AI Vision & Strategy**: Defining roadmaps for AI adoption.
- **AI Model Training**: Customizing models for specific business needs.
- **Workflow Design**: Automating processes to create digital workforces.
- **Rapid Experience Design**: Fast prototyping and build-out of digital products.
- **Consulting**: Business, Technology, and Marketing strategy.

## Portfolio & Products
The site showcases several developed tools and boilerplates:

- **[ProfitSignals.xyz](https://www.profitsignals.xyz/)**: AI Agent for Finance powered by Groq and TradingView.
- **[SaaS Starter](https://www.pantaleone.net/)**: A Next.js 15, BetterAuth, Stripe, and Shadcn boilerplate for building AI apps.
- **[MixPHD.com](https://mixphd.com/)**: A discovery engine for drink recipes and cocktails.
- **[ImgSquash](https://imgsquash.com/)**: Free in-browser image compressor (JPEG/PNG).
- **QR Code Generator**: A free tool to generate customizable QR codes.
- **NextJS Portfolio App**: A scalable portfolio solution inspired by Vercel/Supabase.

## Navigation
- [Home](https://www.pantaleone.net/)
- [Shop](https://www.pantaleone.net/shop)
- [Blog](https://www.pantaleone.net/blog)
- [About](https://www.pantaleone.net/about)

How to Deploy Your LLMs.txt File

This is the easiest "feature" you will ever build.

  • Create the File: Copy the markdown above into a new file named llms.txt.
  • Customize: accurate descriptions are key. Be concise.
  • Upload: Place it in the public folder of your Next.js app (or the root directory of your server).
  • Verify: Go to yoursite.com/llms.txt to ensure it loads.

The Last Word on LLMs.txt

The web is evolving. We are moving from a "Search" economy to an "Answer" economy. By adding this simple 50-line file to your repository, you ensure your work is accessible, understandable, and usable by the next generation of intelligent agents.

Don't let the AI guess. Tell it who you are.

Last updated: January 12, 2026

Featured AI Products

Free QR Code Generator$100

Developer kit for building customizable, high-quality QR code generation apps with support for multiple data types, branding options, and real-time previews—all in Next.js 15

imgsquash.com$10000

Developer kit for building browser-based image compression and optimization apps supporting AVIF, WebP, PNG, JPEG XL, and more

MigrateCMS Tool$330

Developer kit for building browser-based content migration apps from various CMS platforms to Next.js with SEO optimization

Looking to Accelerate AI Projects?

Let's chat about your vision and projects!