AI Crawler Management: The Definitive Guide to robots.txt for AI Bots

By William Wang, Founder of GEOScore AI Your robots.txt file was designed for Googlebot. But in 2026, there are over 20 AI crawlers hitting your site — GPTBot, ClaudeBot, PerplexityBot, Google-Extended, Bytespider, CCBot, and more. Most website owners have no idea which AI bots are visiting their site, what they are doing with the content, or how to control access. This guide covers everything you need to know about managing AI crawlers through robots.txt. The AI Crawler Landscape in 2026 Here are the major AI crawlers you need to know about: Crawler Company Purpose GPTBot OpenAI Training data + ChatGPT browsing ChatGPT-User OpenAI Real-time browsing for ChatGPT ClaudeBot Anthropic Training data for Claude PerplexityBot Perplexity Real-time search results Google-Extended Google Gemini training data Googlebot Google Traditional search + AI Overviews Bytespider ByteDance TikTok AI features CCBot Common Crawl Open dataset used by many AI models FacebookBot Meta AI training for Meta produc