Key takeaways
- SEO earns rankings, AEO earns direct answers and GEO earns citations in generative AI.
- They share the same foundations, so run them as one programme, not three.
- Measure visibility in AI answers alongside rankings and traffic.
New acronyms arrive in marketing every year, and most fade. SEO, AEO and GEO are different. Together they describe a real shift in how people find information: from a list of links to a direct answer.
Three terms, one goal
SEO (search engine optimisation) is the long-standing practice of helping pages rank in search results. It covers technical health, content that matches search intent and authority from links and mentions.
AEO (answer engine optimisation) focuses on being the direct answer: featured snippets, “People also ask” boxes and voice assistant responses. It rewards concise, well-structured answers to specific questions.
GEO (generative engine optimisation) focuses on generative AI systems such as ChatGPT, Gemini, Perplexity and Google AI Overviews, which write answers and recommend brands. It rewards clarity, corroboration and expertise.
All three share one goal: be the source the buyer trusts when they are looking for help.
What actually changed
- Fewer clicks for simple questions. When an answer appears on the results page, many people never click. Informational traffic is the most exposed.
- Shortlists instead of lists. AI assistants often recommend three to five options, so position eleven on page two is no longer a place to wait; it is invisible.
- Brand understanding matters more. AI needs to know what your brand is, not just which keywords a page targets.
- Third-party opinion carries more weight. Reviews, comparisons and coverage shape how AI describes you.
What has not changed
Helpful, accurate, well-organised content still wins. Technical foundations still matter: if crawlers cannot reach or understand your pages, neither search engines nor AI will use them. Authority still comes from other credible sites talking about you. The fundamentals are the same; the reader is new.
How to plan for all three
- Start from buyer questions, not keywords alone. Map questions across the journey, from problem to comparison to decision.
- Answer first, then explain. Put a clear, direct answer at the top of each section, then add depth, examples and proof.
- Structure everything. Descriptive headings, lists, tables, FAQs and schema markup help every type of engine.
- Show expertise. Named authors, original data, real examples and first-hand experience separate you from generic AI-written content.
- Earn mentions. Digital PR, partnerships and reviews feed both rankings and AI recommendations.
- Measure the new way. Track rankings and traffic, but also your share of voice in AI answers and the accuracy of how you are described.
The bottom line
Do not split your team or budget three ways. Treat SEO, AEO and GEO as one visibility programme with one question at its heart: when someone looks for what we do, are we the clearest, most trusted answer?