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What is answer engine optimization (AEO)?

Answer engine optimization (AEO) is the work of getting AI answers to name your business and describe it accurately. When a buyer asks Google AI Overviews, ChatGPT, Perplexity, or Gemini who to hire, the answer names specific businesses and describes what they do, where they are, and what they charge. AEO shapes your website and your profiles so that description is built from your facts, stated in the language your buyers actually use, and so your business is one of the names the answer gives.

What does an answer engine do with your business?

An answer engine reads the web the way a diligent researcher does, then writes a summary. It gathers your website, your Google Business Profile, your directory listings, your reviews, and pages other people have published about you. It resolves those sources into one record of your business, then answers the buyer's question from that record. The summary is mandatory: you do not get to opt out of being described by AI answers. You only choose whether the description is assembled from your facts or from your competitor's.

That assembly happens whether or not your business participates. A firm that has never thought about AI search already has an AI description, written from whatever the engines could find. If your website says one thing about your services and your profile says another, the engine goes with the version it can corroborate, and the version it can corroborate may be the stale one. AEO is the work of taking authorship of that record before the engines finish writing it without you.

What does AEO change on a website?

On the site itself, AEO changes how facts are stated and structured:

• A canonical page that states what the business is: the category, the services, the place, and the prices where prices are public, said once, plainly, in one place the engines can point to.
• Question-led headings and direct answers: pages written in the form buyers ask their questions, with the answer stated at the top of the section instead of buried under a paragraph of throat clearing.
• Entity schema: structured data that connects the organization, its people, and its services as one entity, with sameAs links to the profiles that are also that entity.
• FAQ content that answers real questions: the questions buyers ask, answered in plain language on the visible page, with FAQ schema that matches the visible text word for word.
• An llms.txt file: a plain text statement of who the business is and where its key pages are, written for language models the way a sitemap is written for search crawlers.
• A sound technical foundation: pages crawlers can fetch, an index free of canonical conflicts and dead redirects, and a site that loads fast enough to be read.

None of this is decoration. Each item is a source the answer is assembled from, made legible. A page that states its category only inside an image, or only in words no buyer would type, is a source the engine cannot use, and sources the engine cannot use might as well not exist.

What does AEO change off the website?

Half the record lives off your site, and AEO works there too. The Google Business Profile is a primary source for local and service businesses: its category, services, hours, and service area feed the answer directly. Directory listings and review profiles repeat your name, address, and phone number, and the engines cross-check them against your site. Professional profiles, industry directories, and association pages corroborate who you are and what you do. AEO inventories all of it, finds where the facts disagree, and brings every source into line with the canonical statement on your website.

The disagreement is usually mundane. A business moves and updates its website but not its listings. A profile keeps an old phone number, a shortened name, or a category chosen a decade ago for a service the business no longer sells. Each conflict is small. Together they blur the record, and a blurred record is what makes an answer engine describe you vaguely, describe your competitor instead, or leave your name out of the answer entirely.

How is AEO different from SEO?

SEO earns a place in a list of links. AEO earns a place inside a written answer. A business could live with ranking third under the old arrangement, because the searcher still saw three names and clicked around. The new arrangement puts a written answer at the top of the page that often names two businesses and stops. Ranking below the answer still has value, and the list still gets clicks, but the answer is the first description most buyers now read, and for a growing share of questions it is the only one.

The foundation is shared. AI answers are assembled from crawlable pages, search indexes, business profiles, and listings, so the crawling, indexing, and speed work of SEO is the floor AEO stands on. The difference is the unit of work. SEO optimizes a page for a query. AEO optimizes the whole record the answer is assembled from, across every source the engine reads, in the words the buyer used to ask.

How do you measure AEO?

You measure it the way the buyer experiences it: by asking. Take the searches that bring you revenue, phrased the way buyers phrase them, and put them to Google AI Overviews, ChatGPT, Perplexity, and Gemini. Write down what the answers say. Are you named? Are you described accurately, in your category, in your place? Who is named instead of you, and what does the answer claim they do? That written record is the baseline.

Then repeat it on a schedule, because AI answers drift. Competitors publish, directories change, profiles get edited, and the answer that named you in March may name someone else in June. A single screenshot is a snapshot. A monthly series of the same questions, answered in writing, is a measurement, and it is the only honest way to know whether the work is holding.

Where do you start with AEO?

Start by reading your own description. Ask the answer engines about your business today, in your buyers' words, and write down what they say before you change anything. Then fix the record: one canonical statement of what the business is, repeated identically on the website, the profile, and the listings, with pages that answer buyer questions in buyer language. Gerris sells exactly this sequence as the AI Visibility Audit and the Claim Sprint, and the companion guide explains the selection process the audit measures.

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Read next: What is generative engine optimization (GEO)? and How do AI answers choose which businesses to name?