What is AEO? A Guide to Answer Engine Optimization

What AEO is

AEO (Answer Engine Optimization) is the practice of structuring and presenting content so that it is selected as the direct answer to a question. Rather than aiming only for a good position in a list of results, AEO seeks to occupy the space where the answer is given immediately, often without the user needing to click.

This type of optimisation gained relevance with the shift in search behaviour: people ask questions in natural language, expect immediate answers and increasingly use voice assistants and features that summarise information at the top of the results.

Why AEO matters now

Search behaviour has shifted from lists of links to immediate answers. Clickstream studies show that the share of “zero-click” searches has been rising sharply: it stood at around 58.5% in the US in 2024 and reached about 68% in 2026, according to SparkToro.¹ In other words, in a large share of searches the answer is consumed on the results page itself.

AEO vs SEO

AEO does not replace SEO; it builds on it. The difference lies in the objective and the format of the content.

In practice, a site with solid SEO foundations is well placed for AEO. What changes is how the content is written and organised: more direct, more structured and more focused on real questions.

Where answers appear

Direct answers appear in several formats, and AEO works for all of them:

• Featured snippets: the highlighted answer box at the top of the results.
• People Also Ask: the block of related questions that expands to show short answers, present in around half of all searches.⁵
• Voice search: assistants that read out a single answer; several studies indicate that a significant share of those answers is extracted from featured snippets.⁶
• AI summaries: AI Overviews and generative engines, which also synthesise answers from sources (the topic of the AIO and GEO pages).

Featured snippet formats

The format of the answer should match the intent of the question. The distribution of snippets, according to Semrush, is dominated by the paragraph:⁷

How content is chosen

Engines select direct answers from pages they already consider relevant and reliable. Google is explicit: it is not possible to “tag” a page for the featured snippet, the selection is algorithmic.² Among the signals that carry weight are the clarity of the answer, the closeness between the question and the answer in the text, the structure of the content and the authority of the source. A short, unambiguous answer placed right after the question is far more likely to be extracted than the same information diluted across a long paragraph.

AEO best practices

• Answer the question right at the start: give the essential answer in the first one or two sentences (“inverted pyramid” style) and only then expand.
• Keep the answer concise: paragraph snippets typically run to 40 to 50 words (around 300 characters).⁸
• Use natural language: write the way people ask, including complete questions as headings.
• Choose the right format: paragraph, ordered list or table, depending on intent.
• Cover question clusters: anticipate follow-up questions (aligned with People Also Ask) and answer them on the same page.
• Demonstrate authority and currency: cite sources, show real experience and keep data accurate.

Structuring content for answers

Form is as important as content. Some structures favour extraction:

Other good structures: short paragraphs for definitions, numbered lists (<ol>) for processes, bulleted lists for enumerations and real HTML tables for comparisons. Tables inserted as an image are not extracted by the engine.

Schema: what changed (and what still holds)

This does not make schema useless. Marking up FAQs still makes sense for clarity, for UX and as a signal to AI engines, even without the visual rich result. And there is markup that remains fully valid: QAPage (for forum-type pages, with one question and answers from users)⁹, as well as Article, Organization, Breadcrumb and VideoObject. Google’s golden rule still applies: schema must reflect the content visible on the page.

{
  "@context": "https://schema.org",
  "@type": "QAPage",
  "mainEntity": {
    "@type": "Question",
    "name": "How do I optimise for featured snippets?",
    "acceptedAnswer": {
      "@type": "Answer",
      "text": "Place the question in a heading and answer in the first 40-50 words, in a format that matches the intent."
    }
  }
}

How to measure results

• Featured snippets and PAA won: via position tracking (Semrush, Ahrefs), filtering by SERP features.
• Impressions with low CTR in Search Console: good candidates for zero-click searches or for a snippet.
• Presence in AI summaries: with mention-monitoring tools (see the GEO/AIO pages).
• Brand awareness: in a world of zero-click searches, measuring traffic alone understates the value of being the answer.

Common myths and mistakes

Common mistakes: burying the answer in the middle of a long text, writing ambiguously, answering only generic terms instead of real questions, using tables as an image and ignoring the currency of the information.

Practical AEO checklist

• Each section begins with a real question as a heading (H2/H3).
• The direct answer appears in the first 40 to 50 words.
• The format matches the intent (paragraph, list or table).
• Tables are in real HTML, not in an image.
• The page covers follow-up questions (clusters / People Also Ask).
• The schema reflects the content (QAPage/Article where applicable), without expecting an FAQ rich result.
• Measurement includes snippets, PAA and awareness, not just clicks.

Frequently asked questions