Voice Search Optimization: How to Win Siri and Alexa Answers
Voice queries pull one definitive answer, not a list. Here's how to structure your content so Siri, Alexa, and Google Assistant pick your business.
Voice assistants pull one definitive answer per query. To win that single slot, structure content as direct Q&A with FAQPage schema, mark voice-readable sections with SpeakableSpecification, target conversational long-tail keywords (5-9 words), and ensure your Google Business Profile has accurate hours, phone, and address.
Why is voice search winner-take-all?
Voice search is winner-take-all because an assistant reads out a single answer. A typed search hands you ten links to choose from; Siri hands back one sentence, read aloud, with nothing below it to scroll to.
That makes voice search optimization (AEO — Answer Engine Optimization) the most ruthless form of search marketing. Either your content is the answer, or it doesn't exist.
Where do Siri, Alexa and Google Assistant get their answers?
Siri, Alexa and Google Assistant each have their own data sources, but they all pull from a similar pool:
- Siri: Apple Maps for local, Bing for general queries, Wikipedia for definitions.
- Alexa: mostly Bing, plus Yelp for local and Wikipedia for definitions.
- Google Assistant: Google Search featured snippets and Knowledge Graph.
All three favor: short, direct answers (around 30 words), strong schema markup, and authoritative sources.
Five things to ship for AEO
1. Direct-answer Q&A blocks
Write content in question-format with concise direct answers. Example:
How much does Zorva Labs cost? Every engagement is priced to your project — we send a written proposal in one business day covering the custom website, hosting, and monthly content changes, with the whole price stated before any work starts.
That answer is exactly the right length for a voice assistant to read aloud — about 25 words.
2. FAQPage schema
Wrap each Q&A in FAQPage JSON-LD. This is the strongest signal that your content is answer-formatted.
3. SpeakableSpecification markers
Add SpeakableSpecification to your schema, pointing at data-speakable CSS selectors on your visible Q&A elements. This explicitly tells Google Assistant what to read aloud.
4. Conversational keyword targeting
Voice queries are longer than typed queries. People type "Nashville web design"; they speak "what's the best web design company in Nashville for small business." Target full natural-language phrases, not stems.
5. Google Business Profile completeness
For local voice queries (the biggest AEO category — "find a plumber near me"), your Google Business Profile is more important than your website. Hours, phone, address, photos, services — fill all of it.
How do I win a featured snippet?
You win a featured snippet with a short, direct answer under a heading phrased as the question, and Google Assistant pulls heavily from those snippets. To win one:
- Open the answer paragraph with the question itself, restated.
- Keep the answer to 40-60 words.
- Use a clear H2 with the question phrasing.
- If the answer is a list, format as actual
<ul>or<ol>markup.
FAQ
How long should a voice search answer be?
About 30 words. Assistants favor short, direct answers they can read aloud in one go, while a featured snippet answer can stretch to 40-60 words.
Where does Alexa get its answers?
Mostly from Bing, with Yelp for local businesses and Wikipedia for definitions. Siri leans on Apple Maps for local results and Bing for general questions, and Google Assistant draws on Google's featured snippets and Knowledge Graph.
What is SpeakableSpecification markup?
It's schema that points to the parts of a page meant to be read aloud, using CSS selectors on your visible Q&A elements. It tells Google Assistant which sentences to speak.
Do people use different keywords when they search by voice?
Yes, spoken questions run longer and sound like conversation. Someone types "Nashville web design" but asks out loud for the best web design company in Nashville for small business, so target the whole natural phrase rather than the short stem.
Does my Google Business Profile matter for voice search?
For local questions it matters more than your website. "Find a plumber near me" is the biggest kind of voice query, so fill in your hours, phone, address, photos and services completely.
Get help winning voice search
Zorva Labs bakes AEO into every site we build and into our SEO Growth plan. Talk to us about voice search optimization for your business.