AEO vs SEO: what’s the difference, and do you need both?

If you have heard of AEO, you have probably wondered whether it is just SEO with a new name. It isn’t, but the two are closely connected. Here is a clear breakdown.
The short answer
- SEO (search engine optimisation) helps your pages rank in search engine results, so people click through to your website.
- AEO (answer engine optimisation) helps AI assistants mention and recommend your brand inside their answers, sometimes without a click at all.
Key differences
| Aspect | SEO | AEO |
|---|---|---|
| Goal | Rank pages in search results | Be named and cited in AI answers |
| Where it shows | Google and Bing results pages | ChatGPT, Gemini, Perplexity, Copilot, Google AI Overviews |
| Unit of success | A ranking page and a click | A brand mention, citation or recommendation |
| Main levers | Keywords, content, technical health, links | Entity clarity, answer-ready content, trusted mentions, structured data |
| How you measure | Rankings, clicks, organic traffic | Mentions across prompts, share of voice, AI referrals |
Where they overlap
Most of what makes a website good for search also makes it good for AI:
- Fast, crawlable, well-structured pages
- Helpful content that answers real questions clearly
- Structured data (schema) that describes your business and services
- Authority signals such as reputable links, mentions and reviews
That is why we recommend planning them together. Strong SEO gives AI systems good material to retrieve; AEO makes sure that material clearly communicates who you are and why you are the right choice.
What AEO adds on top of SEO
- Brand-level consistency. SEO often focuses on individual pages. AEO also cares about how your brand is described everywhere, from directories to social profiles.
- Direct-answer formatting. Leading with a concise answer, then supporting detail, makes your content easier for AI to quote.
- Mentions, not just links. Being discussed on trusted sites matters, even without a link.
- Prompt-based measurement. Instead of tracking a keyword position, you track whether you appear when buyers ask AI a question.
How to plan SEO and AEO together
Running SEO and AEO as separate projects usually means duplicated work. A combined plan is simpler and more effective:
- Start with buyer questions. List the searches and questions people use at each stage, from “what is…” to “best… in [city]” to “[you] vs [competitor]”. These drive both keyword targeting and AI prompt tracking.
- Map each question to a page. Every important question should have a page that answers it clearly. That page can rank in Google and be cited by AI.
- Fix the foundations once. Speed, crawlability, structured data and clear headings help search engines and answer engines equally.
- Build authority beyond your site. Links help SEO; mentions, reviews and listings help AEO. Digital PR delivers both.
- Report on both. Track rankings and organic leads alongside AI mentions for the same set of topics.
Which should you prioritise?
If your website has serious technical issues or very little content, start with SEO fundamentals. Without them, there is little for AI systems to work with.
If your site is in good shape and you already rank for some searches, add AEO next. Check how AI assistants describe your brand, fix inconsistent business details and create answer-ready content for the questions buyers ask.
If you operate in a category where buyers commonly ask for recommendations, such as agencies, software, professional services, travel or healthcare, AEO deserves attention early, because AI answers often name only a handful of options.
A note on measurement
SEO has mature tools: Search Console, analytics and rank trackers. AEO measurement is newer. The most reliable method today is simple: track a fixed set of buyer prompts across the major assistants every month, record whether you appear and how you are described, and watch referral traffic from AI tools in your analytics. Combine that with your SEO reporting and you get a complete picture of your visibility.
So, do you need both?
If buyers in your category search on Google and ask AI for recommendations, which is increasingly true in most B2B and many consumer categories, then yes. Treat SEO as the foundation and AEO as the layer that turns visibility into recommendations.
Want to see how your brand performs in AI answers today? Request a free AI visibility audit, or explore our SEO and AEO services.
Frequently asked questions
Is AEO replacing SEO?
No. AEO builds on SEO. AI answer engines often rely on search indexes and well-structured websites, so good SEO remains the foundation for AI visibility.
Should small businesses invest in AEO?
Yes, especially in categories where buyers ask for recommendations. Many AEO basics, such as consistent business information, clear service pages and FAQs, are low-cost and also improve SEO.
What is the main difference between AEO and SEO?
SEO aims to rank pages in search results; AEO aims to be the answer or recommendation that AI assistants and answer engines give.
Which should I invest in first?
Usually SEO, because a crawlable, well-structured website is the foundation AI systems draw on. Add AEO once the basics are solid.
Do AEO and SEO use the same content?
Largely yes. Pages that answer questions clearly and directly perform well in both, with AEO putting extra weight on concise answers and consistent brand facts.
How long do AEO and SEO take?
Both usually take three to six months for meaningful results, depending on competition and your starting point.
Does ranking on Google help me appear in ChatGPT?
Often, yes. AI assistants frequently draw on well-ranked, authoritative pages, though they also weigh mentions, reviews and other sources.
What is GEO compared with AEO and SEO?
GEO, generative engine optimisation, focuses on visibility in generative AI answers. It sits alongside AEO and builds on SEO.
Which agency does both AEO and SEO?
Flarelit plans SEO, AEO and GEO together for brands in the USA, UK, Europe, the GCC and India.
Can I measure AEO in Google Analytics?
Partly. Some AI assistants send referral traffic you can see in GA4, but the main measure is prompt tracking: how often assistants mention you.