A founder had done everything right for SEO. Their blog ranked on page one for several competitive terms. Their domain authority was strong. Their technical SEO was clean. Organic traffic was growing month on month.
Then a prospect mentioned, almost in passing, that they had asked Perplexity to recommend tools in the founder's category before booking a demo. The founder was not in the results. A competitor with weaker SEO, fewer backlinks and a smaller content library was cited twice.
That conversation prompted a question the founder had not thought to ask before: is SEO and AEO the same thing? And if not, which one did they actually need?
The answer is they are related but distinct. Understanding the difference determines where you focus your effort.
What SEO optimises for
Search engine optimisation is the practice of improving your website's visibility in search engines, primarily Google. When someone types a query into Google and hits enter, the engine returns a ranked list of links. SEO is about earning a position in that list, ideally near the top, for the queries that matter to your business.
The factors that drive SEO performance are well understood: the quality and quantity of your content, the technical health of your site, the authority of the websites that link to you, and how well your pages match the intent behind specific search queries. These factors have been refined over decades of practice and are supported by extensive data on what works.
When you commission an SEO audit, you are asking: why are we not ranking well in Google, and what needs to change?
What AEO optimises for
Answer engine optimisation is the practice of making your brand visible and citable within AI-powered tools: ChatGPT, Perplexity, Claude, Gemini, Grok and the AI Overviews that now appear at the top of Google results.
When someone asks an AI assistant a question, the assistant does not return a ranked list of links. It synthesises an answer, often naming specific products, companies or services as recommendations. AEO is about being in that answer, either as the recommended solution or as one of the credible options named.
The factors that drive AEO performance are different: how clearly your brand entity is defined across the web, how consistently you are described by third-party sources, whether your content directly answers the questions buyers are asking AI tools, and how much authoritative third-party coverage exists about your product.
When you commission an AEO audit, you are asking: why are AI tools not citing us, or citing us incorrectly, and what needs to change?
Where they overlap
The good news is that strong fundamentals help both. If you invest in genuinely useful content that directly answers your buyers' questions, you improve your chances in both Google and AI search. If you build a strong backlink profile from credible sources, you signal authority to both search engines and AI tools. If your site is technically clean and well-structured, both search engines and AI tools can understand it more accurately.
This means a business that has done serious SEO work has a meaningful head start on AEO. The content library, the site structure, the authority signals: all of these translate. You are not starting from zero.
The overlap is particularly strong in one area: content quality. AI tools heavily favour content that answers specific questions directly and completely. This is also what Google increasingly favours. If your content strategy is built around genuine helpfulness rather than keyword optimisation, it is likely performing reasonably well in both channels already.
Where they diverge
Despite the overlap, there are significant differences in what each discipline prioritises.
Third-party citations matter far more for AEO. Google cares about who links to you. AI tools care about who mentions you, reviews you and cites you, across a much wider range of sources including review platforms, directories, podcasts, industry publications and analyst reports. You can have an excellent backlink profile for SEO purposes while being almost invisible in AI search because you have thin third-party coverage in the sources AI tools draw from.
Entity clarity is an AEO-specific concern. AI tools work with named entities and need to be able to identify your brand unambiguously. SEO does not require this kind of entity definition. A business can rank well in Google without ever having established a clear, consistent entity signal across the web. In AI search, ambiguity about who you are and what you do directly reduces the likelihood of being cited.
Structured data has different implications. Schema markup helps with both SEO and AEO, but the types and implementation priorities differ. For AEO, Organisation, FAQ and SoftwareApplication schema are particularly important for helping AI tools understand what your business is and what it does.
AI tools surface inaccuracies that SEO cannot. If an AI tool has learned incorrect information about your product, it will confidently state it. This can include wrong pricing, outdated features, inaccurate comparisons to competitors, or simply not knowing your product exists. SEO has no equivalent problem. An AEO audit therefore includes something an SEO audit does not: testing what AI tools actually say about you, and identifying where those statements are wrong.
Which one do you need?
The honest answer is that most businesses need both, but the sequencing and emphasis depend on where the biggest gap is.
If you have weak SEO and weak AEO, fix SEO first. A strong content foundation, clean technical setup and authoritative backlink profile will improve both your Google visibility and your AI search presence simultaneously. Trying to build AEO on a weak SEO foundation is inefficient.
If you have strong SEO but weak AEO, an AEO audit is the right next step. You have already built the content and authority foundation. The gap is likely in entity clarity, third-party citation breadth or structured data, and an AEO audit will tell you exactly which.
If your SEO is fine but prospects are telling you they found competitors in AI search, this is a clear signal that AEO is the priority. The problem is not your Google rankings. It is your presence in the channel where those specific buyers were looking.
If you are in a category where buyers do heavy research before purchasing, both matter and should be treated as parallel priorities rather than sequential ones. The research phase now happens across Google, AI assistants and review platforms simultaneously, and presence in only one of those channels means missing buyers in the others.
What each audit looks like in practice
An SEO audit examines your website, its technical structure, your content, your backlinks and your on-page optimisation. The output is a prioritised list of changes to make to your site and content strategy.
An AEO audit examines your presence across the entire information ecosystem that AI tools draw from: your site, third-party review platforms, industry publications, directories, structured data and what AI tools actually say about you when tested directly. The output is a prioritised list of changes across all of these surfaces, not just your website.
The two audits are complementary. Many businesses run both and find that they surface different issues with minimal overlap.
A practical starting point
Before deciding which audit to prioritise, test your current position in both channels. For SEO, check your rankings for the terms most important to your business. For AEO, open ChatGPT, Perplexity and at least one other AI tool and ask each one the questions your buyers would ask when researching your category. Note whether you appear, how you are described and which competitors are named in your place.
The results of that test will usually make the priority obvious.
TinyAudits works with vetted SEO and AEO specialists who can audit either or both, depending on where your gaps are. If you are not sure which you need, describe what you are seeing at tinyaudits.com: whether that is poor Google rankings, absence from AI search results, inaccurate AI descriptions of your product, or all three. We will match you with the right expert and send you a free basic audit, usually within hours.