What is AEO (Answer Engine Optimization)?
Answer Engine Optimization (AEO) is the practice of structuring content to appear as direct answers in search engines' featured snippets, knowledge panels, and AI-generated answer surfaces. AEO predates GEO but overlaps significantly: both optimize for selection as an authoritative answer source rather than a ranked link.
AEO originated in response to Google's featured snippets and voice search, which extract and surface direct answers rather than lists of links. The techniques — definition-first writing, question-form H2 headings, concise factual paragraphs, structured data markup — proved equally effective when AI search assistants emerged.
In 2026, AEO and GEO are often used interchangeably, though practitioners distinguish them: AEO focuses on traditional search answer surfaces (Google featured snippets, Bing instant answers), while GEO focuses specifically on AI model citation in generative response systems. CiteFuel's audit addresses both layers.