Query fan-out means running several related searches to answer one question. Google says AI Mode and AI Overviews may use this method to explore different parts of a topic and find supporting pages.
For example, a question about the best CRM for a small team might lead a system to search separately for prices, features, and integrations. The exact searches vary by product and question, and the system may not use fan-out every time.
Businesses can make important facts easy to find across their site. Clear pages about pricing, product capabilities, and common questions help visitors compare options, regardless of how an AI system searches.
For an expense management product, useful pages might separately explain pricing, accounting integrations, and receipt scanning. Those pages answer different buyer questions even when they begin with one broad search.
Fan-out describes how a search system gathers information. It is different from a marketing team's list of related keywords, and it does not provide a formula for earning a citation.