Answer Engine Optimization (AEO) — featured snippets, PAA, AI Overviews, voice.

AEO vs GEO — what's the difference?

GEO (Generative Engine Optimization) covers all surfaces where AI cites content — ChatGPT, Claude, Perplexity, Gemini chat. AEO (Answer Engine Optimization) is the subset focused on answer-extracting engines:

• Google featured snippets (the box at the top of a SERP)
• Google People Also Ask (PAA) expansion boxes
• Google AI Overviews / Search Generative Experience (SGE)
• Bing Copilot direct answers
• DuckDuckGo Instant Answer + Brave Search AI
• Voice assistants (Siri, Alexa, Google Assistant) that read one-paragraph answers aloud

The Aleyda Solis 10-characteristic checklist (a widely shared GEO checklist) is a good start but not sufficient for AEO. Answer engines have specific extraction format requirements that go beyond "be extractable in general". A page can score 8/10 on the GEO checklist and still get zero featured snippets because the first paragraph is 120 words instead of 45.

The three featured-snippet formats

Google's featured snippets mostly take one of three shapes:

Paragraph snippet

The most common shape. Google grabs a single paragraph immediately after an H2 question.

• Format: single <p>, a few sentences at most.
• Trigger: H2 phrased verbatim as a question; paragraph directly answers it.
• Anti-pattern: a long paragraph gets truncated in the snippet.

List snippet

For step-by-step, ranked, or sequence queries.

• Format: <ol> or <ul>, a short list of short items.
• Trigger: intro sentence before the list saying "here are the N steps..."; H2 above shaped as a process question.
• Anti-pattern: a long list may be cut off, so only the first items show.

Table snippet

For comparison or by-criterion queries.

• Format: <table> with descriptive <caption>, few columns, first column = row labels.
• Trigger: H2 shaped as "X vs Y" or "X by criterion".
• Anti-pattern: a wide table breaks mobile rendering and may be truncated.

PAA — predict the next 3 questions

People Also Ask boxes appear on many SERPs and surface related questions a user might ask next. Inclusion in PAA = expanded SERP real estate.

Strategy:

1. Search your primary query in Google. Note the PAA questions that appear (expanding one loads more).
2. For each PAA question relevant to your page, add an H2 with the question verbatim (or near-verbatim with synonym substitution).
3. Provide a ≤50-word direct answer in the paragraph immediately following each H2.
4. Add the same Q&A pairs to a single FAQPage schema block (max one FAQ schema per page). Since 2023 Google shows FAQ rich results only for well-known government and health sites, so treat this as structure, not a rich-result play.

Compound effect: a single page answering its primary query + several PAA questions can appear in more than one SERP feature at once (primary ranking + featured snippet eligibility + PAA inclusions).

AI Overviews (SGE) — seven readiness practices

Google says there are no extra requirements for AI Overviews: a page must be indexed and eligible to show in Search with a snippet. These seven practices are our readiness checklist, not Google's criteria:

1. Schema saturation: Article + Person + Organization + appropriate type-specific (Recipe / HowTo / FAQPage / Dataset)
2. Direct-answer-first paragraph: the first paragraph IS the answer to the page's primary query, in ≤45 words
3. High E-E-A-T signal: author byline + Person schema with sameAs + /about page + /methodology
4. Freshness: a current dateModified for fact-bearing content
5. Topical authority: the page is part of a topical cluster — 3+ related pages on the same site with internal links
6. Mobile-perfect + Core Web Vitals in Good (LCP <2.5s, INP <200ms, CLS <0.1)
7. Content in the HTML: Google can render JavaScript, but body content in first-paint HTML is the safest bet

None of these guarantees inclusion; they make a page easier to understand and quote.

Voice search + Speakable schema

Voice queries tend to be longer than typed queries and shaped as natural language. Voice assistants read a short answer aloud, so the extraction format requirement is strict.

Setup:

1. Phrase at least one H2 as a long-tail natural-language question. Example: "How long does sourdough need to ferment at room temperature?" not "Sourdough fermentation time".
2. Provide a ≤45-word direct answer in the paragraph below.
3. Wrap that paragraph with Speakable schema (Google lists it as beta and uses it for news queries on Google Assistant). The simplest approach is to add a CSS selector to your Article schema:

   {
     "@type": "Article",
     ...
     "speakable": {
       "@type": "SpeakableSpecification",
       "cssSelector": [".answer-paragraph"]
     }
   }

4. Add the class .answer-paragraph to the paragraph you want voice assistants to read.
5. Verify HTTPS + canonical URL.

When NOT to invest in AEO

AEO has opportunity cost. Skip it when:

• Conversion-focused SaaS — clicks > snippets. A featured snippet can reduce your CTR.
• Genuinely zero-click commercial queries — the snippet captures all the value, you get the brand impression but no conversion.
• Opinion / POV-driven content — the extractor strips nuance, leaving a flattened version of your point.
• Technical specialists audience — voice and snippet formats likely pay off less for niche-technical queries.

For reference, calculator, database, comparator, and content-marketing pages, AEO investment is high-leverage. For SaaS B2B + portfolio + internal-tools, it's usually a distraction.

Score your AEO surface readiness via the Citation Readiness Score — the audit's Dual Fit dimension checks answer-first format (a short first paragraph, question-phrased H2s) alongside the Aleyda-based GEO Readiness checklist.