Search marketing has minted three acronyms, and business owners are rightly asking which one they're supposed to buy. The short version: SEO gets you ranked in search results, answer engine optimisation (AEO) gets your content chosen as the direct answer to a question, and GEO gets your brand cited inside AI-written responses. The three overlap heavily and stand on the same foundations. This guide defines each in plain English, shows where they genuinely differ, and explains why you almost certainly don't need three separate strategies.
What is answer engine optimisation?
Answer engine optimisation is the practice of structuring your content so a machine can lift it out as the direct answer to a specific question. The term predates the current AI wave: featured snippets, People Also Ask boxes and voice assistants have been answering questions for years, and AEO grew up around them. The playbook is recognisable. Pose the real question your customer asks, answer it immediately in a sentence or two, then expand with the detail. Add FAQ sections, use clear headings, and mark pages up with schema so engines can parse them with confidence. Our free schema generator covers that last step in minutes.
Winning the answer position matters because it concentrates attention. One response gets read aloud by a voice assistant, sits above every competitor in a snippet, or forms the opening line of an AI reply. For questions with commercial intent, that single slot often decides which business gets the enquiry. The same structure also happens to be pleasant for humans to read, which is why this work done well tends to lift conversion as well as visibility.
What is GEO, and how is it different?
GEO stands for generative engine optimisation: the work of getting your business cited and recommended inside the answers that generative AI writes. Where answer engine optimisation focuses on making individual answers easy to lift, GEO takes in the wider picture: your entity footprint, your authority across the web, and whether AI engines trust your brand enough to name it. We've covered it in depth in our full guide to GEO, so we'll keep this section short rather than repeat it. The key point is the shift in outcome: AEO wins you the answer box, GEO wins you the recommendation.
SEO still runs underneath everything
SEO is the discipline the other two stand on. AI engines find their sources by searching and reading the web, so the fast, crawlable, authoritative sites that rank well are the same sites that get quoted. A business with weak SEO fundamentals rarely wins at answer engine optimisation or GEO, because the machine never reads its pages in the first place. That's why the smartest framing isn't three competing channels. It's one foundation with new surfaces built on top, a relationship our guide to AI SEO unpacks in full.
That dependency is easy to prove to yourself. Ask an AI assistant a question about your own industry and look at the sources it cites. They're rarely obscure sites that cracked some new code; they're almost always pages that already rank, load quickly and read clearly. The new channel rewards the old fundamentals.
AEO vs GEO vs SEO at a glance
Definitions only get you so far, so here's the cleanest way to hold the three apart:
- SEO: earn a ranking. Success looks like top positions, clicks and steady organic traffic from people searching Google.
- AEO (answer engine optimisation): earn the answer. Success looks like your content quoted as the direct response, in a featured snippet, a voice reply or the first line of an AI answer.
- GEO: earn the recommendation. Success looks like your brand named and linked when an AI writes its answer for a buyer.
Notice how much the second and third share. The honest position on the AEO vs GEO debate is that the two are converging: the same clarity, structure and authority drive both, and as AI search matures the vocabulary will consolidate with it. Some agencies sell them as separate line items. We treat them as one discipline applied to every surface where an answer can appear, because the label matters far less than whether the work gets your business chosen.
Plain-English summary: SEO makes you rank, answer engine optimisation makes you the answer, and GEO makes you the recommendation. One foundation, three surfaces.
Which should your business invest in first?
Start with the foundation, then extend. If your site has technical problems, thin content or little authority, fix that first, because every other channel inherits the weakness. Once the fundamentals are solid, the next dollar is best spent making your content answer-ready: direct answers, FAQ sections, schema markup and a clear entity story. Then measure whether AI engines actually cite you, which is what our free AI Visibility Checker shows you in a couple of minutes. If they don't, that's the gap answer engine optimisation and GEO exist to close, and it's the work our AI and GEO visibility service runs for clients every month.
Whether the proposal in front of you says SEO, GEO or answer engine optimisation, the outcome you're buying is the same: qualified buyers finding your business, trusting it and enquiring, whether they searched in Google or asked an AI. Judge any pitch, including ours, on that outcome rather than on the novelty of the label.
