SEO vs GEO vs AEO: what's actually different

SEO, GEO, and AEO all overlap, but they’re not the same thing, and treating them as interchangeable is a common, understandable mistake. Here’s the actual difference: SEO targets ranking in a list of links, GEO targets being recommended by an AI model, and AEO targets being the direct answer an AI tool gives someone.

SEO: getting ranked

Search Engine Optimisation is the original discipline - making sure a page ranks well in traditional search results like Google. It’s built around keywords, backlinks, page speed, and the technical health of a site. The goal is a click: someone sees a page in a list of results and chooses to visit it.

GEO: getting recommended

Generative Engine Optimisation is about a different moment - someone asking an AI tool something like “who’s good at X,” and that tool naming specific brands in its answer. GEO isn’t about ranking in a list; it’s about being one of the names that gets said out loud, so to speak. The audience isn’t a person scanning search results, it’s a model deciding who’s worth mentioning.

AEO: being the answer

Answer Engine Optimisation is about content getting used directly to answer a specific question - “what is X,” “how does Y work.” Rather than being one of several recommended brands, AEO is about a piece of content itself being pulled out and used as the answer, sometimes with no click and no brand recommendation involved at all, just the information itself.

Where they overlap

All three depend on a lot of the same underlying work: a technically healthy site, clear and well-structured content, real expertise rather than filler. None of them succeed on trickery - content that’s genuinely good at ranking tends to also be reasonably well positioned for GEO and AEO, because the same qualities (clarity, structure, real substance) matter to all three.

Where they genuinely diverge

The difference shows up in what “winning” looks like:

• SEO wins when a page shows up in the top results and gets clicked.
• GEO wins when a brand gets named as a recommendation, whether or not anyone visits the site at that moment.
• AEO wins when a specific answer gets used, sometimes without the source being named or clicked at all.

That last point is uncomfortable for a lot of businesses: AEO success can mean genuinely useful visibility with zero traffic to show for it. It’s still worth having - being the trusted source an AI model draws from builds a different, harder-to-measure kind of authority - but it’s a real shift from the click-based way SEO has traditionally been judged.

Do businesses need all three?

Not necessarily all at once, and not with equal effort. A local service business might care most about GEO (being recommended). A business selling something people research heavily might care most about AEO (answering their questions well). Most businesses benefit from all three working together rather than picking just one - but understanding which one actually matters most for a specific business is a better starting point than trying to do everything equally from day one.