Every year or so the work picks up a new set of initials. SEO acquired AEO, AEO acquired GEO, and somewhere in a deck being written this week is the next one. At the rate the letters are arriving, the farm is only a couple of rounds away.
The joke writes itself. What sits underneath it is the more useful half. The three are very nearly the same discipline at their core, adjusted slightly for whichever system happens to be reading. Where they do diverge, the difference is small, and it is not the part anybody is selling.
What the three actually claim
SEO is the work of making a site findable, understandable, and trusted, so that when a person asks a question you can answer, your pages are what comes back. What is SEO, and why it matters if you own a website is the longer version.
AEO is the older specialization, and a narrower one. It is about getting a single sentence lifted out of one of your pages and shown as the direct answer, frequently with no click attached. What is AEO, and how a page becomes the answer works through how that happens.
GEO is the newest, and it is about being named by an assistant that has largely decided who it will recommend before it goes looking for anything. Which half of that anybody can actually sell you is the subject of What is GEO, and which half of it gets sold.
Three names, three surfaces, and three sets of people selling against them. They look like three separate problems wanting three separate answers.
Put the same problem to all three
The quickest way to see what they share is to put a real problem in front of each one and read the prescriptions side by side.
Say your prices sit in a widget that renders after the page loads, so the numbers are not in the page a machine receives. SEO says put them in the HTML, because a crawler cannot index what is not there. So does AEO, because an empty space holds no sentence to lift. So does GEO, because a model that cannot read your figure will quote a competitor’s.
Or you have twelve thin pages on one subject where one good one would do. Consolidate, says SEO, because thin pages compete with each other. Consolidate, says AEO, because the answer is split across pages that each hold a piece of it. Consolidate, says GEO, because assistants fold pages from one site into a single slot anyway.
Or your address is written three different ways in three places. All three say fix it, and for roughly the same reason. Contradicting yourself is how something else becomes the more reliable source about you.
Run enough problems through this and it stops being interesting. The answer stops changing.
Where they genuinely differ
Two places, and neither deserves to be waved away. Neither one is a separate discipline, though. Both are a single requirement bent toward the system doing the reading.
The first is that GEO’s harder half has nothing to do with your website at all. Being a name a model already carries comes from reviews, comparisons, coverage, and years of other people talking about you. No setting on your site touches it, and nobody can sell it to you.
The second is that AEO cares about where a sentence sits and how it is shaped, in a way general search work never had to. Whether the answer sits in your first two lines or your ninth paragraph matters a great deal when something is deciding what to lift. It barely mattered when that same page was only being ranked.
Those are real differences, and both are adjustments to one rule rather than departures from it. State your facts clearly: that is the requirement in every case. An answer engine wants them said early, an assistant wants them corroborated by other people, and a search engine wants them reachable. Between them these adjustments are a modest share of the total work, and neither is what the acronyms are mostly sold on.
Strip the initials off
Strip the initials off and the same short list is left standing. A machine has to be able to reach your pages and read them, which means the content is there before any script runs. Each page needs one clear claim, set out near the top. Your facts have to agree with each other wherever they appear, and they have to still be true this year. Underneath all of it sits the one requirement no website can satisfy on its own, which is being a business that enough people have heard of.
None of that is new. It was not invented by an answer engine or a language model, and it is what the work has asked for since well before any of these three sets of letters existed. The systems reading your site changed. What makes a site legible to them did not.
This is why the foundation keeps coming out as the answer, and it is not a matter of taste. Follow any of these disciplines to its conclusion and it arrives at the same handful of unglamorous requirements.
Build the foundation properly and you have the best available chance of being found, understood, and recommended by anything that comes looking for you. That includes anything deciding whether to put you in front of a future customer. It holds for search engines, for answer engines, for assistants, and for whatever gets built after them. Every one of them is solving the same problem, which is working out what you are and whether you can be believed.
Why the letters keep coming
Partly because the surfaces really are new, and giving a new surface a name is reasonable enough. Partly because the foundation is close to impossible to sell.
Which of these two sounds like the bigger opportunity? One is a new discipline for a new era of search, arriving with a methodology, a package, and a quiet suggestion that you are already behind. The other says your pages should load correctly and say what you do. The second one is what actually moves the needle. It also sounds like nothing at all, and that asymmetry is most of the engine driving the alphabet.
The next set of initials
It will arrive, probably before spring. There is one question worth putting to it, and answering it takes about a minute.
What does this actually ask me to change on my website?
If the answer comes back as reachable pages, readable content, one clear claim, consistency, and currency, then you already know what it wants. The name it has chosen for itself will not matter. If it comes back as something new, that is worth learning, and it will be a small addition to the same foundation instead of a replacement for it.
Either way you will not be starting from nothing, and you will not have to learn the alphabet over again. Get the groundwork right once and you are already answering the question every one of these systems is asking. Go and check whether your prices are in your HTML.