GEO, or Generative Engine Optimisation, is the practice of getting your business cited in the answers that AI tools give. When someone asks ChatGPT, Perplexity or Google’s AI Overviews a question, those tools name a handful of sources. GEO is the work of making sure your business is one of them. As more buyers start their research inside an AI assistant rather than a search box, it is becoming as important as traditional SEO for being found.
This post explains what GEO is, how it differs from SEO, why it matters now, and how to judge whether your business needs to invest in it.
What is GEO?
GEO is optimising your content and website so that AI engines reference you when they answer a relevant question. Where traditional search returns a list of links for the user to click, AI tools synthesise an answer and cite only a few sources. GEO is about earning a place among those few.
The shift matters because the destination has changed. In classic search, the goal was a high ranking that earned a click. In AI search, the goal is to be the source the AI quotes inside its answer, often before the user visits any website at all. Being absent means the AI describes your market, recommends your competitors, and never mentions you.
It is worth saying plainly that GEO is not a gimmick or a separate marketing fad. It is a response to a real change in how people find information, and it rewards what good websites have always needed: clear, credible content, structured so a machine can read it.
How is GEO different from SEO?
SEO optimises for ranking in a list of links. GEO optimises for being cited inside a generated answer. They share foundations, such as crawlability, structure and authority, but the goal and the way you measure success differ.
The competition is also far tighter. A page of Google results shows around ten links. An AI answer typically cites just two to seven sources, so the window to be included is much narrower and position matters more. You measure SEO in rankings and clicks. You measure GEO in citations and mentions.
GEO does not replace SEO. It builds on it. Google’s AI Overviews still draw on pages that rank well, though less than they did. Ahrefs found 38% of AI Overview citations also ranked in the top ten organic results in March 2026, down from 76% in July 2025. Strong traditional SEO remains the foundation, which is why the two are best treated as one connected effort rather than rivals.
Why does GEO matter now?
Because the audience has moved, and quickly. Previsible reported in Search Engine Land in August 2025 that AI referred sessions rose 527% between January and May 2025, across the 19 analytics properties it studied. OpenAI said in February 2026 that ChatGPT had reached 900 million weekly active users, and Perplexity’s chief executive put his service at 780 million queries in May 2025. A large and growing share of buyers, including in business-to-business markets, now treat AI search as a serious part of how they research decisions.
The commercial point follows directly. If your customers increasingly ask an AI assistant for recommendations, and that assistant has never heard of you, you lose the opportunity before a human ever sees your website. The businesses being named in those answers today are building an advantage that compounds, because early citations and authority are self-reinforcing.
This is also a rare window. The field is new enough that being visible is achievable for a focused business, in a way that established search rankings often are not. That will not stay true forever, which is part of why it is worth attention now.
How do AI engines decide what to cite?
Each engine sources answers differently, so there is no single trick that wins them all. ChatGPT Search leans heavily on Bing’s index and favours authoritative, encyclopedic content, with Wikipedia supplying 7.8% of all its citations, per Profound in June 2025, and 47.9% within its ten most cited domains. Profound put Reddit at 6.6% of all Perplexity citations, and 46.7% within its top ten domains. Perplexity strongly favours recent content. Google’s AI Overviews stay closest to traditional search, citing pages that already rank well.
A few patterns hold across all of them. Recently updated content does better, and pages carrying original data give an engine something it cannot find elsewhere. The specific citation multipliers quoted for freshness and data tables trace back only to vendor blogs with no published method, so treat them as folklore rather than findings. A real presence on community platforms like Reddit helps visibility almost everywhere, because the engines read those discussions when forming answers.
The practical lesson is that your own website is necessary but not sufficient. Getting cited also depends on freshness, third-party mentions and community presence, which is why GEO is broader than just editing your homepage.
What does GEO involve in practice?
Three layers do most of the work. The technical layer makes sure AI crawlers can read your site at all, since most of them do not run JavaScript and see only the raw HTML a server sends. The structural layer adds schema markup and answer-first content, because AccuraCast found 81% of the 9,000 cited pages it checked in September 2025 carried schema, though Ahrefs later tracked 1,885 pages that added it and measured no lift, so read schema as groundwork rather than a lever. A concise answer placed directly under a clear question heading is the pattern an engine can lift cleanly. The authority layer builds the freshness, original data and external mentions that engines trust.
None of these is exotic, but doing them correctly and keeping them current is ongoing work, and the technical layer in particular is easy to get wrong in ways that quietly cost you visibility. We cover the most common technical failure in detail in our guide to why a website can be invisible to ChatGPT.
Does my business actually need GEO?
You need it most if your customers research before they buy, and if being recommended is part of how you win work. It matters more again in markets where people ask the kind of question an AI can answer. Professional services, considered purchases and business-to-business sales all fit that description. If your customers are increasingly likely to ask an AI for options, GEO is no longer optional.
You may need it less if your business runs almost entirely on local footfall, repeat custom or word of mouth, where online research plays a small role. Even then, basic AI visibility is cheap insurance. The honest answer for most businesses that sell to people who research online is that GEO is becoming part of the cost of being findable at all.
Frequently asked questions
Is GEO the same as SEO?
No, but they are closely related. SEO aims to rank your pages in search results, while GEO aims to get your business cited inside AI-generated answers. They share technical foundations, and because AI answers often draw from top-ranking pages, strong SEO supports GEO. The two work best as one connected effort rather than separate projects.
Does GEO replace SEO?
No. GEO builds on SEO rather than replacing it. Google’s AI Overviews cite pages that already rank well, so traditional search performance remains foundational. The right approach is to keep doing SEO and add the structure, freshness and technical work that AI engines specifically reward.
How do I know if my business appears in AI answers?
Ask the engines directly. Prompt ChatGPT, Perplexity or Google’s AI Mode with questions a customer might ask, such as “who offers [your service] in [your area],” and see whether you are named. The answer also reveals what the AI currently believes about you, which is often outdated.
How long does GEO take to work?
It varies. Some changes, like fixing technical issues so crawlers can read your site, can surface within days to a few weeks once engines re-crawl. Building authority and citations is slower and compounds over months. GEO is closer to an ongoing discipline than a one-off fix.
Flux Dynamics builds and optimises websites to be visible in both search engines and AI assistants. If you want to know whether your business shows up when customers ask an AI, tell us your situation and we will take a look.