Generative Engine Optimisation (GEO) is the practice of tailoring content so it is cited, quoted, or recommended by AI-powered answer engines such as ChatGPT, Perplexity, and Google's AI Overviews. Unlike traditional SEO which targets blue-link rankings, GEO focuses on being the source an AI retrieves and surfaces in a generated response. Tactics include writing authoritative, well-structured content, earning brand mentions across the web, and implementing clear [Structured Data](/glossary/structured-data) so AI systems can parse facts easily. GEO is an emerging discipline and best practices are still evolving rapidly.