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AEO (Answer Engine Optimization)

October 20, 2026

AEO (Answer Engine Optimization) is the practice of presenting content so that search engines and AI assistants can pull a direct answer from your page to a user’s question. AEO aims for featured snippets, People Also Ask boxes, voice assistants and AI-generated answers, on top of a plain link in a list of results.

What is AEO?

AEO predates the generative AI wave. Early on, its main target was the featured snippet. Google describes this as a result that flips the usual order: the descriptive snippet comes first, the link second, and the block can sit inside a group of related questions (Google Search Central, Featured snippets, December 2025). Google also states plainly that there is no way to mark your own page as a featured snippet. Its systems decide which page gets picked.

Once AI Overviews, ChatGPT and Perplexity went mainstream, “answer engine” took on a wider meaning that includes systems that write their own answers. Since then AEO and GEO have overlapped a great deal.

What does Google say about AEO?

In its guide to optimizing for generative AI features, published in May 2026, Google names both “AEO” and “GEO” and concludes that for Google Search, optimizing for AI search is still SEO. Google advises caution before buying third-party “AEO” or “GEO” services and notes that no outside tool can access Google’s internal ranking or AI systems (Google Search Central, May 2026, updated July 2026). The same guide says structured data is not required to appear in AI search.

One old AEO trick was adding FAQ schema to every page to take up more space on the results page. Since August 2023, Google shows FAQ rich results only for well-known, authoritative government and health websites, and other sites no longer get them on a regular basis (Google Search Central Blog, August 2023). Schema is still worth using where it fits. It just stopped being a shortcut.

What does AEO-style writing look like?

The core of AEO is putting the answer right after the question, short enough to make sense when read on its own. A hypothetical example: a shipping company in Ho Chi Minh City has a page titled “How many days does it take to ship from Ho Chi Minh City to Hanoi?”

  • The unoptimized version opens with the company’s history and service promises, and only gets to delivery times in the fourth paragraph.
  • The AEO version opens with: “By road it usually takes 3 to 4 days, by air 1 to 2 days, counted from pickup.” Pricing, conditions and delay scenarios come after that.

Writing this way helps both readers skimming on a phone and the systems that extract snippets. Adtek’s Vietnamese-language article on AIO walks through the full process of getting cited by AI.

AEO vs GEO

AEO GEO
Origin SEO practice built around featured snippets and voice search A research paper from Princeton and IIT Delhi, November 2023
Unit of optimization One question, one answer One source inside an answer synthesized from many sources
Desired outcome Being chosen as the answer Being cited and mentioned by name
Risk The user reads the answer and leaves The AI summarizes incorrectly or does not credit the source

The risk in the AEO column is what people call zero-click search: your page is shown but gets no click. For that reason, measure AEO by impressions as well as traffic.

Frequently asked questions

Does AEO need FAQ schema?

It is not required. Google does not ask for any special schema for AI search, and FAQ rich results have been restricted since August 2023. Clearly written questions and answers on the page still help readers.

Is AEO only for voice search?

No. Voice was one of the first places people talked about AEO. Today most direct answers appear on search results pages and in chat-based AI tools.

If you want to review your service pages so they answer the questions customers actually search for, Adtek’s SEO team can go through them with you. Start from our contact page.