Free llms.txt Generator & AI Visibility Checker

Preparing Your Startup for the AI Discovery Era

The way people discover products is fundamentally changing. Alongside traditional search engines, millions of users now ask AI assistants — ChatGPT, Claude, Gemini, Perplexity — to recommend tools, compare products, and solve problems. When someone asks "What's the best project management tool for small teams?" and your startup isn't in the AI's response, you've lost a potential customer to a competitor that optimized for AI visibility.

What Is llms.txt?

llms.txt is an emerging standard — similar in spirit to robots.txt — that provides AI language models with a structured overview of your website. While robots.txt controls which pages crawlers can access, llms.txt tells AI systems what your site is about, which pages are most important, and how to accurately describe your product. It's a plain-text Markdown file placed at your domain root (e.g., yoursite.com/llms.txt).

The file typically includes: your site name and description, important notes for LLMs (how to represent your brand, pricing caveats, what to avoid), core page links with descriptions, and a structured breakdown of your site sections. Think of it as a briefing document for AI — concise, factual, and designed to prevent hallucinations about your product.

AI Crawler Visibility

Beyond llms.txt, your AI visibility depends on which AI crawlers can access your content. Each major AI company operates its own web crawler:

• GPTBot (OpenAI) — crawls content for ChatGPT's training and retrieval
• ClaudeBot (Anthropic) — crawls content for Claude's knowledge
• Google-Extended — crawls content for Google's AI products (Gemini, AI Overviews)
• Bytespider (ByteDance) — crawls content for various AI products
• CCBot (Common Crawl) — builds the open dataset many AI models train on

Each can be individually allowed or blocked in your robots.txt. The AI Visibility Checker in this tool analyzes your robots.txt to show exactly which AI bots can access your site, helping you make an informed decision about your AI discoverability strategy.

Why Startups Should Act Now

The llms.txt standard is still early — adoption is growing but not yet universal. This presents a first-mover advantage for startups that implement it now. By providing AI systems with accurate, structured information about your product, you increase the likelihood of being correctly mentioned in AI responses. Early adopters of robots.txt and structured data similarly gained years of SEO advantage over competitors who waited.

Using This Tool

The Generator tab walks you through creating a complete llms.txt file — enter your site name, description, important notes, and page structure, and the tool produces a properly formatted file you can download and deploy. The AI Visibility Checker tab analyzes any domain's robots.txt for AI crawler rules and checks for llms.txt presence, giving you a comprehensive view of your current AI discoverability posture. Pro Launch's own llms.txt is included as a reference example.