Lately the abbreviations SEO, GEO and AEO get confused for each other. All three relate to “search visibility”; but they answer different questions. In its simplest form: SEO gets you ranked, AEO makes you the direct answer, GEO gets you mentioned in AI answers.

Short definitions

  • SEO (Search Engine Optimization): Your pages being found and ranked in search engines like Google. The foundation of technical health, content and authority.
  • AEO (Answer Engine Optimization): Structuring your content to be a direct answer to a question — featured answer boxes, “People Also Ask” and voice responses.
  • GEO (Generative Engine Optimization): Your brand being mentioned and cited in generative AI answers like ChatGPT, Gemini and Perplexity.

Let’s see the difference with an example

Say a user is researching “the best accounting software for small businesses”:

  • Thanks to SEO, your page is listed in search results.
  • Thanks to AEO, the featured answer to “what is accounting software” comes from your page.
  • Thanks to GEO, when the user asks the same question of ChatGPT, your brand is mentioned among the recommendations.

As you can see, none replaces another; they cover different moments of the same journey.

Which do you need and when?

  • If your website is technically weak or basic content is missing, SEO comes first. Without it, the others hang in the air.
  • If you get many informational, “how / what” questions, AEO provides quick wins.
  • If buyers in your industry make decisions by asking AI, GEO directly touches revenue.

For most brands the right answer isn’t “one of the three” but running all three together. Indeed, one feeds another: a good AEO structure strengthens GEO, and solid SEO forms the ground for both.

The single-system approach

Splitting these three across separate agencies or separate reports means conflicting decisions and scattered measurement. We manage all three in one roadmap and one dashboard — the detail is in the AI Search Visibility service.

Summary

SEO is the foundation, AEO targets the direct answer, and GEO gets you mentioned in AI answers. Your priority may change with your competitive environment; but the strongest result comes from building all three together. To see which is a priority for you, let’s start with the visibility analysis.