Voice search optimisation is the process of adapting your content so it can be easily found and understood by voice assistants like Google Assistant, Siri, and Amazon Alexa when users speak their queries instead of typing them. In this guide, we’re looking at voice search optimisation, why it matters, and how to build a strategy that works alongside your wider SEO and GEO efforts.
A Brief History Of Voice Technology
Did you know that voice technology goes all the way back to 1952 when Bell labs developed “Audrey”? This was the first system capable of recognising digits (0-9) spoken by a single voice. Fast-forward 50 years later to 2013 and voice optimisation as an SEO strategy took off with Google’s Hummingbird algorithm. This update improved Google’s understanding of semantic intent (the meaning behind the query), rather than just matching keywords.
In 2026 with the shift to natural language processing, users stopped typing short keywords (e.g., “brokers US”) and started asking full questions (e.g., “what are the top rated brokers in the US?” The rise of Voice Search coincided with Google’s “Position 0” (Answer Box). Voice assistants (like Alexa and Google Home) often read only the top-ranked answer, making it crucial for brands to optimise content to be that single answer.
Now, voice optimisation has merged with AI-powered search (Generative Engine Optimisation or GEO), where tools like ChatGPT and Google Assistant use natural language understanding (NLU) to provide answers rather than just links. And while this has, hopefully, been an interesting history lesson, what does it mean for marketers today?
What Is Voice Search Optimisation?
Voice search optimisation is the process of improving your content and digital presence so it appears in results for voice-based queries. These are typically delivered by assistants like Siri, Alexa, or Google Assistant. Unlike traditional search, voice queries are longer, more conversational and often phrased as full questions.
For example:
Typed search: “best savings account UK”
Voice search: “What is the best savings account in the UK right now?”
This shift in behaviour means search engines are no longer just matching keywords, they’re interpreting intent, context, and natural language.
Why Voice Search Optimisation Matters
Voice search is growing steadily, driven by mobile usage, AI improvements, and user convenience.
- Around 72% of people who are aware of voice search have used it
- The global voice search market size was estimated at $3.05 billion in 2026, with projections reaching compound annual growth rate (CAGR) of 23.8% from 2024 to 2030
- 76% of smart speaker users perform local searches weekly
- Voice searches are 3x more likely to convert due to higher intent
Perhaps most importantly, voice search is tightly linked to featured snippets and AI-driven answers. Around 60–70% of voice responses come from featured snippets , meaning if you’re not optimised for position zero, you’re unlikely to be included at all. This is where voice search intersects directly with both SEO and GEO.
How Voice Search Is Different from Traditional SEO
Voice search changes how content is discovered and how it is delivered.
First, queries are more natural. Users speak in full sentences, often using question words like “what,” “how,” and “where.” In fact, around 86% of voice searches are question-based.
Second, results are more selective. Voice assistants typically return a single answer, often pulled from top-ranking pages or featured snippets.
Third, context matters more than in written SEO. Voice search often includes local intent (“near me”) or immediate needs, making relevance and timing critical.
Key takeaway: Voice search rewards clarity, authority, and usefulness, not just keyword targeting.
Get a quick FAQ on SEO and GEO marketing here.
Best Practices for Voice Search Optimisation
To succeed in voice search, marketers need to rethink both content structure and technical SEO. The following best practices are consistently highlighted across leading sources like Semrush and industry research.
#1 Write for Natural, Conversational Language
Voice search queries mirror how people speak. That means your content should do the same. Google itself recommends writing content that can be “read aloud” clearly and naturally. Focus on simple sentence structures, natural phrasing and question-based headings. This doesn’t just improve voice visibility, it also aligns with AI-generated search results.
#2 Target Question-Based and Long-Tail Keywords
Voice queries are typically longer and more specific than typed searches. The average voice query is around 4–7 words and often framed as a question.
Instead of targeting:
- “forex trading platform”
You should also target:
- “What is the best forex trading platform for beginners?”
This approach captures high-intent traffic and aligns with how users interact with voice assistants.
Read more on how to avoid these top 10 SEO mistakes financial marketers make.
#3 Optimise for Featured Snippets
Voice assistants frequently pull answers directly from featured snippets. This is one of the most critical overlaps between SEO, voice search, and GEO.
To increase your chances to be featured in snippets:
- Provide clear, concise answers (25–40 words is ideal)
- Structure content with headings and definitions
- Answer questions directly below headings
#4 Focus on Mobile and Page Speed
Voice search is predominantly mobile-driven, with the majority of queries happening on smartphones. At the same time, performance matters so don’t neglect page speed as it directly impacts conversion rates. Google prioritises mobile-first indexing, making technical optimisation essential for both SEO and voice search success.
#5 Build Strong Local SEO Signals
A significant portion of voice searches have local intent. Users frequently ask for nearby services, directions, or recommendations.
To capture this:
- Optimise Google Business profiles
- Use location-specific keywords
- Maintain consistent NAP (Name, Address, Phone) data
Voice search is often the bridge between digital discovery and real-world action.
#6 Use Structured Data and FAQ Content
In SEO, structured data (also called schema markup) helps search engines understand your content more effectively, increasing the chances of being selected for voice responses. By marking up data, websites become eligible for “rich results,” which are visually enhanced listings (star ratings, images, FAQs, product details) that occupy more space and stand out, leading to higher click-through rates (CTR).
FAQ sections are particularly powerful in this respect because they:
- Mirror natural question formats
- Provide concise, direct answers
- Are more likely to be used in voice results
Voice search results are significantly more likely to come from pages with clear question-answer formatting.
Find out other strategies Contentworks uses to get their financial services clients on top of rankings.
How Do Voice Search, SEO and GEO Work Together?
Voice search optimisation should not be treated as a standalone tactic. It sits within a broader evolution of search that includes:
- SEO (Search Engine Optimisation): ranking in traditional search results
- GEO (Generative Engine Optimisation): appearing in AI-generated answers
- AEO (Answer Engine Optimisation): structuring content for direct responses
Voice search is essentially the intersection of all three. Your content should answer questions clearly, demonstrate authority and be technically sound. Then it increases its likelihood to be discovered in search engines, AI tools, and voice assistants.
Is Voice Search Optimisation Worth Your Time?
Our brief history lesson at the start of the article shows us that voice search optimisation is not a new trend. As search continues to evolve towards conversational and AI-driven experiences, brands that prioritise clarity, intent, and usability will have a significant advantage.
Voice search optimisation is about how people naturally communicate. For financial services brands in particular, where authenticity and compliance are critical, voice search presents an opportunity to be transparent and trusted.
To fully capitalise on this shift, voice search should be integrated into your wider SEO and GEO strategy. Book a Zoom call with the team at Contentworks to get started.