For twenty years, being found online meant one thing: ranking in Google. Now a growing share of buyers ask ChatGPT, Claude, Gemini or Perplexity who to buy from, and those tools do not hand back a page of links. They reply with a short, confident answer that names a handful of businesses. That shift has produced a new acronym, GEO, and a predictable wave of confusion about how it relates to the SEO you already know.
GEO stands for generative engine optimisation: the work of earning your business a place inside those AI-generated answers. You will also hear the same discipline called AEO or simply AI visibility; we walk through the whole field in plain English in what is answer engine optimisation. SEO needs less introduction: it is the long-established craft of earning rankings, traffic and enquiries from search engines, Google above all.
So what is actually different between them? Honestly: less than the hype suggests, but more than nothing. This guide covers where the two overlap, where they genuinely part ways, and why treating them as rivals is the one mistake worth avoiding.
What each one is trying to win
SEO earns you a position on a results page. When someone searches for “roofers in Galway”, good SEO puts your site into the visible results and your business into the map pack. From there a click becomes a visit and a visit becomes an enquiry. A results page has room for dozens of businesses, so even fifth place keeps you in front of buyers.
GEO earns you a place inside an answer. When someone asks an AI assistant the same question in a conversational way, the tool composes a short reply that names perhaps three or four businesses, sometimes crediting the pages it drew on. You are either in that answer or you are absent from the conversation entirely. Same buyer, same intent, a very different doorway.
Where they overlap: the fundamentals feed both
Here is the part the hype tends to skip: most of what makes GEO work is classic SEO done well. AI assistants do not conjure recommendations out of thin air, and they rarely answer a local buying question from memory. When a question needs fresh or local facts, most of them run web searches of their own, often several in a row, read a handful of pages they trust, and build their answer from what they find. Those searches return the ordinary ranked results, so the raw material for AI answers is still, mostly, the same web pages surfacing through the same search that SEO has always shaped. The businesses an assistant names are overwhelmingly the ones that already rank and that the web describes in a consistent way.
That means the fundamentals pull double duty:
- Useful content that answers real customer questions ranks in Google and gives an assistant something worth quoting
- A sound, crawlable site, the bread and butter of technical SEO, is legible to Googlebot and to the crawlers the AI companies run
- Earned authority through genuine link building and digital PR tells Google you matter and tells the assistants you are safe to recommend
- Local proof, meaning a complete Business Profile and a steady flow of reviews, feeds the map pack and the assistants that lean on local data alike
If you have been doing honest SEO for years, in other words, you have been doing a good chunk of GEO without ever using the acronym. That is also why the businesses ranking well today tend to be the ones AI assistants already mention.
Where they genuinely differ
The first difference is the query itself. People type “accountant Galway” into Google, but they ask an assistant “who would you recommend to look after the books for a small restaurant in Galway?” Questions become longer, fuller and conversational, and content that answers them in kind, plainly and completely, is far likelier to be lifted into an answer. GEO pushes you to write for questions, not just keywords.
The second is concentration. A results page spreads visibility across dozens of businesses; an AI answer concentrates it into a few cited sources. The gap between visible and invisible is far sharper than it ever was in classic search, which raises the stakes on every signal that decides who gets named.
The third is entity clarity. Google can often rank you even when your details are a little inconsistent across the web. Assistants are more easily confused: if your name, services and location are described differently from one directory to the next, the machine’s picture of you blurs, and blurred businesses do not get recommended. An assistant cannot independently verify that you are good at what you do; what it can measure is whether the signals around your business agree with each other, and it treats that consistency as trust. So GEO puts real weight on making your genuine details line up everywhere they appear, your site, your listings, your reviews and your schema markup all telling the same clear story. Measurement changes too: rankings come from a rank tracker, while AI visibility means putting your market’s questions to the assistants and recording what comes back, month after month. We explain that routine step by step in how to track your AI visibility.
Why it is both, not either/or
The temptation is to treat this as a fork in the road: keep doing SEO, or move the budget to the shiny new thing. It is not a fork. It is one road with a new lane. Cut SEO to fund GEO and you starve the very signals the assistants rely on; ignore GEO entirely and you leave a growing share of buying conversations to whichever competitor bothered to show up. Because the two disciplines share most of their work, running them together costs far less than running either one badly.
One caution before you spend a euro with anyone, including us. Nobody can promise you a placement inside a ChatGPT or Gemini answer, and nobody can guarantee rankings either; the engines change constantly, and nobody outside those companies controls what they say. What an honest partner can do is strengthen the shared foundations, add the GEO-specific layer of entity, schema and answer-shaped content, and measure the results in the open. That is exactly how our AI visibility and GEO service is built: it runs alongside classic SEO, not instead of it, and both are reported in the same plain-English dashboard.
See where you stand on both
If you want a quick read on the AI side, our AI visibility checker is a free two-minute self-check against the signals that drive AI recommendations, no email address required. For the full picture across both disciplines, the free SEO audit covers your rankings and technical health alongside a genuine scan of how ChatGPT, Claude, Gemini and Perplexity answer questions about your market. And if the findings point to work worth doing, our AI visibility and GEO service handles both lanes together and shows you the trend honestly, every month.
