SEO, AEO and GEO: what actually differs
SEO optimises for a position in a list of links. AEO optimises for being the passage a machine lifts. GEO optimises for being named and described correctly inside a composed answer. The pages that serve all three are largely the same pages.
The acronyms are marketing, and the underlying shift is not. It is worth separating the two, because a team that treats AEO and GEO as new departments ends up with three content plans that fight each other, and a team that dismisses them as rebranding keeps writing pages nothing can quote.
The one-line version
| Optimises for | Won when | Lost when | |
|---|---|---|---|
| SEO | A position among links | You are on the first page | You are on the second |
| AEO | Being the quoted passage | The answer shown is yours | Somebody else's is |
| GEO | Being named and described accurately | The assistant mentions you, correctly | It mentions a competitor, or describes you wrongly |
What they share
More than the acronym trade admits. All three need a page that can be crawled and rendered without executing a browser's worth of JavaScript. All three need a subject the page genuinely covers. All three reward specificity and punish padding. All three depend on other people linking to and talking about you, because that remains the strongest available signal that a source is worth reading.
So the honest description is not three disciplines. It is one discipline with a wider definition of success than it had five years ago.
What genuinely changes in the writing
Under SEO alone you could open with context. Under AEO the opening paragraph is the product; everything after it is the case for believing the opening paragraph.
Because a retrieved section has to make sense on its own, and a question does that work where a label does not.
One page per question, rather than one guide per topic. A guide covering fifteen questions is retrieved for none of them as reliably as fifteen pages are.
Because generative answers lean towards sources that show when they were last checked, and because a reader who arrived from an assistant wants to know whether this is still true.
What changes in measurement
This is where the three genuinely diverge, and it is the part most teams are unprepared for. SEO has a position and a click. AEO has a citation, which you can sometimes see and often cannot. GEO frequently has neither: the assistant describes you accurately, the person forms an opinion, and no request ever reaches your server.
Teams that insist on attributing every outcome to a click will conclude that this work does nothing, right up until they notice that the buyers arriving already know things they never read on the site.
The hardest part of AI visibility is not earning it. It is being able to see it.
Where should a team start?
- Fix retrievability first. Server-rendered pages, clean canonicals, no consent wall over the content, a sitemap that is actually current.
- Write the twenty questions your sales and support people answer every week, one page each, answer first.
- Mark them up honestly — question and answer, author, organisation, dates — so a machine does not have to infer the structure.
- Ask the assistants your buyers use what they say about your subject and about you, and write down the answers.
- Repeat the asking monthly. The direction of travel is the reading that matters; a single snapshot tells you nothing.
Questions this settles
No. They are one body of work with three definitions of success. Separate budgets tend to produce three teams writing three versions of the same page.
AEO, because it is the one where a small, specific, first-hand publisher genuinely competes with a large one, and because the pages it produces also serve the other two.
No. Most assistants run a search before answering, so search ranking now decides which pages get the chance to be read. It has become the qualifying round rather than the final.