SEO gets pages indexed in search. AEO formats content for direct answers (snippets, PAA). GEO targets citations in AI summaries such as Bing Copilot and Google AI Overviews. All three need crawlable, snippet-eligible pages first.
Answer Engine Optimization (AEO) is the practice of structuring content so search engines surface it as a direct answer: featured snippets, People Also Ask, Knowledge Panels, and voice responses.
Generative Engine Optimization (GEO) applies those same foundations to AI-generated summaries and research tools. It improves eligibility and clarity; no implementation can guarantee a citation.
Both build on solid technical SEO. If a site cannot be crawled, indexed, and shown with a snippet, neither AEO nor GEO works. Accurate structured data clarifies visible content, but it does not create authority or citations by itself.