The answer layer changed
GEO turns SEO evidence into material a generated answer can use.
Classic SEO asks whether a page can be discovered, indexed, ranked, and clicked. GEO SEO asks a second question: can a generated answer use that page as reliable evidence when a buyer asks for a recommendation, comparison, explanation, or source?
That is why generative engine optimization services, a generative engine optimization agency, and generative engine optimization tools should all be evaluated by the same standard: do they improve retrievable evidence, citation quality, answer accuracy, and the fix order?
GEO is not a replacement for SEO. It is the answer layer that sits on top of retrievable, trustworthy public evidence.