Where the term comes from

“Agentic engine” is the useful half of the name. A search engine returns a list of documents a person then reads. An agentic engine returns an answer it has already written, and the person reads that instead — usually without clicking anything. The list of documents still exists underneath, as sources, but it is no longer what the buyer sees first.

That inverts the thing most businesses measure. You can be the third result in Google and be absent from the answer, because the answer named two competitors and a directory page.

How AEO differs from SEO

	SEO	AEO
What you compete for	A position in a ranked list	A place in the answer, and in its sources
What counts as success	Ranking, impression, click	A question where your domain is cited
Who assembles the result	The engine, from your page	The model, from several sources at once
What you can measure	Positions and traffic	Which questions cite you, and who they cite instead
The usual first fix	Titles, links, page speed	Consistent entity facts, answer-shaped pages, retrievable structure

Why a ranking is not a citation

When someone asks an engine a buying question, three things happen in order: it retrieves a handful of passages, it decides which businesses to name, and it attaches the sources it used. Only the third step is visible, and it is the one that sends the buyer.

Attribution frequently lands on somebody else’s page — a directory listing, a review site, a comparison article — even when the business itself ranks well. That is not a conspiracy against the business; it is the model preferring a page that states the fact plainly over a page that implies it.

What AEO work actually consists of

One set of facts, everywhere. Name, services, service area and hours written the same way on your site and in machine-readable markup, so an engine resolving “who does X near me” gets one entity, not three.
Pages that answer one question each, answer first. The first sentence of the section should be the sentence that would survive being lifted out of it.
Retrievability. Allow the AI crawlers, publish a sitemap, keep the HTML clean enough to parse. A site that blocks GPTBot or PerplexityBot has chosen not to be a candidate.
Corroboration elsewhere. Engines trust a fact they have read in more than one place. Directories, listings and press are not vanity — they are the second witness.
Measurement, then repetition. Fix, re-run the same questions, compare the same numbers. Without a fixed question set, every claim about AI visibility is a feeling.

How you know whether it worked

Ask the same questions twice and count the answers that name your domain in their sources. That count is the only honest scoreboard, and it needs the questions frozen before the work starts, or the comparison is worthless. We publish ours in full on our method.

What AEO is not

Not a guarantee of first place. No one controls what a model says next Tuesday. What can be controlled is whether you are retrievable, consistent and quotable.
Not keyword stuffing with a new name. Models summarise; padding makes a passage worse, not better.
Not measurable from a dashboard. Traffic analytics cannot tell you why an answer omitted you. You have to ask the engines directly.

Written by Pablo Diaz, who runs Diaz AEO — independent AEO audits on ChatGPT, Gemini, Perplexity and Google’s AI Overview. Corrections welcome: reply to any email we send you.

What is AEO — Agentic Engine Optimization?