Glossary

What is answer engine optimisation (AEO)?

Also known as answer engine optimization

Definition

Answer engine optimisation (AEO) is the practice of shaping content so search features and AI assistants can lift it as a direct answer. Examples include a featured snippet, a voice answer or a passage in an AI response.

Key points

AEO focuses on giving clear, direct answers that search features and AI tools can quote.
It grew out of featured snippets and voice search, and now applies to AI answers too.
It overlaps heavily with GEO, which also covers brand mentions and reputation.

What does it mean in practice?

A plumbing firm gets asked the same questions every week. How much does a boiler service cost? How long does a new boiler take to fit? AEO means answering each of those in its own short section, with the question as the heading and the answer in the first sentence.

That makes the answer easy for Google, voice assistants and AI engines to quote. The approach started with featured snippets and voice search, where one answer is shown or read out. The same habits now help with AI answers, which also favour short, clear passages that make sense on their own.

Why does it matter for AI search?

AI engines often quote or paraphrase short passages rather than whole pages. A page where each question has a clear answer gives them something easy to use and cite.

AEO and generative engine optimisation overlap a lot. AEO leans towards question and answer content. GEO also covers brand mentions, reputation and how engines describe you. Our AEO vs GEO vs SEO guide sets out the differences side by side.

A good place to start is the questions your customers already ask. Our guide to answer engine optimisation goes further. Prompt research shows how Axiom GEO gathers real questions from People Also Ask, autocomplete and Reddit.

These terms are closely linked to AEO.

Featured snippet, the Google result that shows one answer first.
People Also Ask, the box of related questions in Google.
Generative engine optimisation, the wider work of AI visibility.
Zero-click search, when the answer is given without a visit.

Common questions

What is AEO vs SEO?

SEO is the wider work of helping pages rank and get clicks in search results. AEO is a narrower part of it, focused on writing content that can be quoted as a direct answer. A page can rank well and still be poor for AEO if its answers are buried in long paragraphs.

Is AEO the same as GEO?

They overlap a lot but are not quite the same. AEO is mostly about question and answer content that engines can lift. GEO also covers whether AI engines mention and recommend your brand, which sites they cite and how accurately they describe you.

Reviewed 26 September 2026

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