AEO vs SEO: What's the Difference, and Where Should Your Next Pound Go?
SEO earns you a position in a ranked list. AEO earns you the single answer that gets spoken aloud or cited by an AI tool. Here is what separates them, why most UK businesses need both, and how to decide where to invest first.
What is the difference between AEO and SEO?
SEO earns you a position in a ranked list of search results. AEO earns you the single answer that gets spoken aloud, displayed in a featured snippet, or cited by an AI tool like ChatGPT. The technical foundations overlap, but the structural requirements diverge enough that you need to plan for both.
A site that ranks well for "accountant Islington" has done one job. A site that gets spoken aloud when someone asks Siri "find me an accountant in Islington who handles small businesses" has done a second, related job. The keyword research is similar. The site speed, schema and on-page basics are similar. What differs is the format of the answer each platform expects to extract: SEO wants a strong page that can compete in a ten-result list, AEO wants a directly-extractable two-sentence answer that the platform can lift and read aloud or cite. For the longer version of what AEO actually involves, we have written what AEO actually is separately.
| SEO | AEO | |
|---|---|---|
| What it targets | Ranked list of search results | Direct spoken or displayed answer |
| Customer action | Clicks through to your website | Calls you, visits, or acts immediately |
| Query format | Typed keywords | Spoken conversational questions |
| Result format | 10 blue links plus Local Pack | Single spoken result or position zero |
| Primary signals | Backlinks, content quality, technical health | FAQ structure, Speakable schema, featured snippets |
| Local lever | GBP, citations, on-page optimisation | GBP, conversational content, schema markup |
| Conversion path | Browse, compare, decide | Ask, hear answer, act now |
| Competition level | High, with established players | Low, since most businesses have not started |
Is AEO replacing SEO?
No, and anyone telling you it is has something to sell. AEO addresses a new delivery layer for search results (voice answers, AI Overview citations, ChatGPT responses) rather than replacing the underlying ranking system that decides which content gets pulled in the first place.
The data backs this up. According to Search Engine Land's analysis of Datos and SparkToro Q1 2025 clickstream data, zero-click searches in the EU and UK rose from 23.6% to 26.1% year on year, and organic click-through rates fell from 47.1% to 43.5% over the same period. That is a meaningful shift, but it does not mean traditional search is dying. People are searching more than ever. They are just resolving more queries inside the search results page itself, through featured snippets, knowledge panels, AI Overviews and the Local Pack. Strong SEO is what gets your content into those features. AEO is what makes sure your content is the one the feature picks. The two reinforce each other.
Do I need to do both AEO and SEO?
Yes, for almost every UK business. The technical foundations of SEO (fast site, clean schema, strong local signals, quality content) are also the prerequisites for AEO, which means investing in one strengthens performance in the other.
A business doing only SEO is visible in a ranked list but absent from the spoken or cited answer. A business doing only AEO has no foundation for the platforms to extract from. The businesses that treat them as separate either-or decisions are the ones that end up doing both late, rather than both efficiently. For the foundations of local SEO, nothing has structurally changed in the last five years. What has changed is what gets layered on top.
Should I focus on AEO or SEO first if I have a small budget?
Start with SEO foundations if your site has technical or local signal problems, because AEO depends on them. If your SEO foundations are already solid (fast site, complete Google Business Profile, consistent citations, decent on-page work), the next pound goes to AEO, because the competitive field there is still mostly empty and the first-mover gains are larger.
The diagnostic is short. Run your site through PageSpeed Insights. If you are scoring below 70 on mobile, fix that first. Check your Google Business Profile is complete with current hours, services and photos. Check your NAP (name, address, phone) is identical across the major directories. If any of those are weak, that is where the next pound goes. If they are all in order and you are still not getting the volume of enquiries you expected, you have an AEO problem rather than an SEO one, and the spend shifts. A free visibility snapshot gives you the diagnostic in writing if you would rather not run the checks yourself.
How much extra work is AEO on top of existing SEO?
AEO is usually 20 to 30% additional content and structural work on top of a properly executed SEO programme, not a separate large project. The four AEO workstreams (conversational content, FAQ structure, Speakable schema, featured snippet targeting) layer onto existing SEO assets rather than replacing them.
The shared technical groundwork is what makes the maths work. Your site is already fast (for SEO), so it is already fast (for AEO). Your schema is already clean (for SEO), so adding Google's Speakable markup is a single additional property rather than a rebuild. Your on-page content already exists, so converting parts of it into the FAQ-and-direct-answer format AEO needs is editing rather than writing from scratch. The 20–30% range covers content rewriting, schema additions, FAQ structure, and the ongoing work of tracking which queries you are winning or losing in voice and AI responses. The work that bolts on most efficiently is the work that pays off across both channels at once.
How does AEO change how I should write my content?
AEO content leads with a directly extractable two-sentence answer to a real user question, then expands. Voice assistants and AI Overviews pull from content structured as questions followed by concise answers, not from keyword-stuffed marketing prose.
Three things shift in practice. Headings become questions rather than statements ("What does emergency boiler repair cost in Hackney?" rather than "Emergency Boiler Repair Services"). The first sentence under each heading answers the question directly, in a form an AI can lift verbatim, rather than building up to the answer over three paragraphs. And the trust signals that matter for AEO are the same ones that already matter for review-driven local SEO, which BrightLocal's 2024 consumer survey confirmed: 88% of consumers would use a business that replies to all reviews, compared to 47% for those that do not. The same authority signals that earn you Google rankings also feed the entity recognition that gets you cited in AI tool responses. Recent research from Ahrefs reinforces the scale of the shift, finding that AI Overviews now appear on roughly 20.5% of all keywords, with much higher rates on question-based and longer queries, which is precisely what AEO content is structured to win.
How do I measure whether AEO is working?
AEO success is measured through featured snippet captures, voice answer citations, AI Overview appearances, and brand mentions in AI tool responses. Traditional rank tracking misses most of it, which is why most agencies miss most of it too.
Manual testing is the starting point and remains the most reliable check. Ask Siri, Alexa and Google Assistant the queries your customers would speak. Ask ChatGPT and Perplexity the questions your customers would type into a chat session. Note where your business is named and where a competitor is named instead. The list of queries where you lose becomes your AEO target list. Over time, the same list also becomes your scorecard. Tools exist that track AI tool citations automatically, but the manual baseline still matters because it tells you what to track. For the longer comparison of how AEO and GEO citation tracking differ, we have written GEO vs AEO separately.
Common questions about AEO vs SEO
What is AEO in simple terms?
AEO is the practice of structuring your content so AI tools and voice assistants pick your business as the direct answer to a question, rather than as one of ten options in a ranked list. It targets spoken answers, featured snippets and AI Overview citations.
What does AEO stand for in marketing?
AEO stands for Answer Engine Optimisation. The term covers the structural work that gets your content selected by voice assistants, AI Overviews and AI tools as the source of a direct answer.
What's the difference between AEO and traditional SEO?
SEO competes for a position in a ranked list of search results. AEO competes to be the single direct answer that gets spoken aloud, featured at the top of a results page, or cited by an AI tool. The technical foundations overlap, but the content structures differ.
Is AEO the same as GEO?
No. AEO targets voice assistants (Siri, Alexa, Google Assistant) and featured snippets. GEO targets AI tools (ChatGPT, Perplexity, Gemini, Copilot). They share technical foundations, but the customer behaviour and content formats diverge enough that they need separate planning.
Will AEO eventually replace SEO completely?
No. AEO depends on SEO to function. The platforms that deliver AEO results still need to find and trust content somewhere, which is what SEO foundations provide. The two operate as layers in the same stack rather than as competitors.
Is AEO worth doing for a small local business?
Yes, often more so than for a larger business. A small local business that wins the voice answer for a specific borough faces less competition than a national brand chasing AEO at scale, and the compounding effect of arriving early in an empty category is larger.
Does AEO help if I don't get walk-in customers?
Yes. The same structural work that wins voice answers also strengthens performance in AI Overviews and ChatGPT citations, which is where higher-consideration B2B buyers form their shortlists. Solicitors, accountants and specialists benefit as much as cafes.
Do I need AEO if I am already ranking well on Google?
Yes, because ranking well in a ten-result list does not guarantee you are the one being spoken aloud or cited by AI. The two outcomes are decided by different signals and content structures.
How do I know if I should invest in SEO or AEO first?
Check your SEO foundations first. If your site is slow, your Google Business Profile is incomplete, or your citations are inconsistent, the next pound goes to SEO. If those are all solid and you are still missing voice and AI answers, the next pound goes to AEO.
How do I know if my business currently appears in voice or AI search?
Manually test it. Ask Siri, Alexa and Google Assistant the questions your customers would ask, and ask ChatGPT and Perplexity the same. If a competitor is named and you are not, you have your baseline and your target list.
How long does AEO take to produce results?
For well-structured content targeting specific local queries, featured snippet capture and voice citation typically happen within six to ten weeks. Pace depends on how much AEO work competitors have already done in your category.
How much does AEO cost on top of existing SEO work?
AEO usually adds 20 to 30% to the cost of a properly executed SEO programme, not 100%. The work layers onto existing SEO assets through content edits, schema additions, FAQ structure and ongoing citation tracking, which is cheaper than starting from scratch.
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Daniel Gardner
Founder, RankLocal Agency
Local SEO specialist working with London tradesmen and small service businesses. Focuses on Google Business Profile optimisation, Astro web builds, and rank tracking for the map pack and organic results.
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