SEO, AEO, GEO: what's the difference

Someone tells you your business needs SEO. Someone else says AEO is what actually matters now. A third person sells you GEO as the future. All three are partly right, because they're talking about three different things — not three degrees of the same thing.

The difference isn't complicated once it's explained properly: each term describes a different surface the same business can appear on. This article puts them side by side, with one example carried through all three, so you know exactly what you're buying when someone sells you one of them.

What each one means, briefly

The last row is the most important one in the whole table. SEO can exist on its own. AEO and GEO almost never can — both feed on the same pages search engines index. If a page cannot be read, there is nothing to extract into a box and nothing for a model to cite.

One example, through all three lenses

Take a single business — a workshop that repairs household appliances — and a single question from a potential customer. Same business, same need, three different outcomes, depending on where the person is looking.

Through SEO. Someone searches „fridge repair” in Google. If the workshop has a clear page that loads fast and that Google can read, it shows up in the top ten results — a list of links, from which the person picks.

Through AEO. Someone searches „how much does a fridge repair cost”. If the workshop's page states the answer right at the start — a figure, a range, a condition — Google can lift that exact paragraph into a box above every result. The person reads the answer without clicking any link at all.

Through GEO. Someone types to an AI assistant: „recommend a reliable fridge repair person”. The assistant doesn't search in real time the way a classic search engine does — it picks from what it already knows, or from what it can read right then, and names two or three options. If the information about the workshop is clear, consistent everywhere online, and easy to summarise, it has a chance of being one of those names.

Three outcomes. Same business. No obligatory link between them — you can win one and be entirely absent from the other two.

Local SEO: a fourth word, but not a fourth discipline

This is the most common confusion. „Local SEO” sounds like a fourth term, equal in rank to the other three. It isn't.

Local is a dimension, not a discipline. Classic SEO answers „what is being searched for”. Local SEO answers the same question filtered through „where is the person searching from” — the map, the business profile, reviews, distance.

And that dimension doesn't stop at SEO. An answer box can be local too („the nearest car service”). And an AI assistant asked „recommend an X near me” is, in effect, doing local GEO — the same GEO principles, filtered through location.

In practice: don't treat „local” as a fourth, separate project. Add it on top of whichever of the other three applies, when your business genuinely depends on proximity — a shop, a clinic, a workshop. A business that sells online, anywhere, doesn't need the local component at all.

Which one to do first

The order matters because each step depends on the one before it. AEO and GEO don't replace SEO — they're built on it, exactly as the last row of the first table shows.

Why this matters, briefly

The reason these three surfaces exist separately, not just on paper: more and more searches end without a single click to a website — the person gets the answer directly on the search engine's page or from an AI assistant, and leaves satisfied. Google officially describes how its own AI features work inside search results, and a SparkToro study using Similarweb clickstream data found that more than two-thirds of US Google searches ended this way in 2026. The figure is American, not universal — but the direction explains why „SEO alone” is no longer enough for a business that wants to be found wherever the question gets asked.

What these three things are not

They are not three separate services you buy independently, like three different subscriptions. They are three layers of one piece of work, each resting on the one before it.

They are not interchangeable. Each depends on different rules, evaluated by different systems — being good at one guarantees nothing about the other two.

And none of them can be bought directly. There is no auction for the answer box or for a place in an AI answer, the way there is for a paid ad. It is earned with clear content and a site the systems can actually read — not with budget.

Where to go deeper on each

This article is the starting point, not the destination. For each discipline, the full guides on this blog go into detail:

• SEO for businesses in Moldova: the complete guide — the technical checks, keyword research, and how long it actually takes
• What AEO is, and why it matters more than SEO in 2026 — how to win the answer box, with a worked rewrite example
• GEO: how ChatGPT, Perplexity and Google AI decide to recommend you — how AI assistants pick who to recommend, plus the practical guide to checking AI crawlers
• Local SEO in Chișinău: how to reach the map and the top three — Google's official criteria for map results

All four use examples from Chișinău, because that's the market we know best. The mechanisms they describe aren't tied to any particular city.

The first thing you can do today

Search your own business name in Google, in an incognito window. If you don't appear at all, you already have the answer to „which one first” — nothing else in this article changes that.

Sources

• Google, AI features in search results — official documentation on how AI summaries and direct answers appear on the results page.
• Google, SEO starter guide — the official definition and fundamental principles.
• SparkToro, „Zero-click searches” — analysis of Similarweb clickstream data, US Google searches, January–April 2026. American figure, with no published equivalent for Moldova.

Every other claim in this article is synthesised from the four complete guides above, where each figure carries its own citation.