# How AI Search Engines Discover and Index Your Website Content Understanding how AI-powered search engines like ChatGPT, Perplexity, and Google AI Overviews find and use your website content is essential for modern SEO. ## The Rise of AI Search Traditional search engines crawl and index web pages based on keywords and backlinks. AI search engines work differently — they look for structured, well-organized content that can be synthesized into direct answers for users. ## How AI Bots Crawl Your Site AI crawlers like GPTBot, ClaudeBot, and PerplexityBot visit your site regularly looking for content they can use to answer user queries. Unlike traditional crawlers, they prioritize: * **Structured content** with clear headings and logical flow * **llms.txt files** that provide machine-readable summaries of your pages * **Schema markup** that helps them understand the context of your content ## What You Can Do 1. **Ensure your content is well-structured** — use proper heading hierarchy (H1, H2, H3) 2. **Add an llms.txt file** — this gives AI systems a roadmap of your content 3. **Monitor AI bot visits** — tools like SeekBox help you track which AI bots visit your site and what content they consume 4. **Optimize for AI discovery** — make sure your most important content is easily accessible and well-summarized ## The Role of llms.txt The llms.txt standard is emerging as the robots.txt equivalent for AI systems. It tells AI crawlers what content is available and how to access it in a machine-friendly format. By implementing llms.txt on your site, you make it significantly easier for AI search engines to discover, understand, and reference your content in their responses.