Answer engine optimisation (AEO) is the practice of shaping content so that systems which give direct answers, rather than lists of links, choose your page as the source of the answer. Those systems include Google’s featured snippets and People Also Ask boxes, voice assistants, and AI tools such as Google’s AI Overviews, ChatGPT and Perplexity.
How answer engine optimisation works
Answer engines look for a passage that addresses the question directly, comes from a source they trust, and fits the format the answer needs: a definition, a short list of steps, a comparison or a figure. AEO makes those passages easy to find and lift.
In practice, that means a heading that matches the question a person asks (“How much does a loft conversion cost in Bristol?”), followed straight away by a clear answer in one or two sentences, then the detail that supports it. Lists suit steps, tables suit comparisons, and short paragraphs suit definitions. Structured data helps machines identify what each part of the page is, though it does not guarantee selection.
AEO overlaps heavily with generative engine optimisation, which focuses on AI-written answers. The term AEO came first, from the era of featured snippets and voice search, and many practitioners now use the two loosely. The underlying skill is the same: be the clearest, most trustworthy answer to a specific question.
Why it matters
For a UK business, more questions are answered on the results page or in an AI tool without a visit to any website. If your answer is the one shown, your brand is still seen and remembered, and people with more involved needs click through to the source. If a competitor’s answer is shown instead, you may not be considered at all.
It particularly suits businesses whose customers research before buying: solicitors explaining conveyancing stages, accountants explaining VAT thresholds, tradespeople explaining what a survey involves. Clear answers to those questions build trust early in the decision.
One history note: FAQ structured data once produced expandable FAQ results for almost any site. Since August 2023 Google shows those mainly for well-known government and health sites, so FAQ markup alone is no longer an AEO tactic for most businesses.
Common mistakes
- Burying the answer under several paragraphs of introduction, so no system can find a clean passage to quote.
- Writing thin question-and-answer pages for every keyword variation, which looks like content made for search engines.
- Giving different answers on different pages, such as two prices for the same service.
- Answering questions nobody in your market asks, instead of the ones in your enquiries and in People Also Ask.
- Judging AEO only by organic clicks, when much of the value is visibility in answers that do not produce a click.
How to act on it
Gather the real questions your customers ask: from your inbox, sales calls, the People Also Ask boxes for your main terms, and Search Console queries phrased as questions. Map each question to the one page that should answer it, so you do not compete with yourself.
On each page, put a direct answer under a matching heading, then expand with examples, UK specifics, prices or ranges where you can stand behind them, and links to deeper pages. Check what AI Overviews and the main AI assistants currently say for those questions and whether you are cited. This is the core of my answer engine optimisation service.