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What is GEO? Generative Engine Optimization explained simply

When someone asks ChatGPT for a provider, the answer often names specific businesses. GEO is the work of making sure yours is among them. Here is what it involves, what is proven to help and what is not.

Aredi Dragusha
· 10 min read

I only show what we could measure.

UlliDrawn owl with an orange scarf and a notebook

The short answerGEO (Generative Engine Optimization) means building content so that AI services like ChatGPT, Perplexity and Google find it, understand it and cite it as a source in their answers. GEO does not replace SEO: pages that rank high on Google are cited much more often in AI answers too.

What GEO means

GEO stands for Generative Engine Optimization. Researchers at Princeton University coined the term in a 2024 study (Aggarwal et al., KDD 2024). “Generative” means the AI writes an answer itself instead of just listing links.

An everyday example: you used to search Google for “tax advisor Linz” and click through ten results. Today you ask ChatGPT: “Which tax advisor in Linz knows start-ups?” The AI replies with two or three names and lists its sources. GEO is about making your website one of those sources.

How an AI answer comes about

To see what you can work on, it helps to look at the steps. The services differ in detail, but the flow is similar:

  1. 01Understand the questionThe AI breaks the question down: what is wanted, where, for whom?
  2. 02Look for sourcesFor current questions it searches the web, often through a search engine. Pages that rank high are more likely to make the shortlist.
  3. 03Pick passagesIt reads individual passages, not whole pages, and takes the ones that answer the question most clearly.
  4. 04Write the answer and cite sourcesThe answer is built from those passages. The sources appear below or inline.

Two things follow. First: without a good search position you are found less often. Second: a clear paragraph that answers the question right away stands a better chance than a long sales text.

GEO and SEO: the difference

AspectSEOGEO
GoalRank high in search resultsBe named or cited in the AI answer
What you measurePosition, clicks, visitsMentions per question and service, share against competitors
Where you workTechnology, content, linksThe same, plus clear answers, a consistent description of your brand, mentions on other sites
What users doSearch, click, readAsk, read the answer, sometimes click

The key point: GEO builds on SEO. In our provider analysis, websites in positions 1 to 3 on Google were cited in Google’s AI Overview about 3.8 times as often as websites in positions 4 to 10, and about 3.7 times as often in ChatGPT. Only Perplexity showed a smaller gap of about 1.7 times.

Why this affects your business

−40%click-through rate on questions that Google’s AI Mode answers completely itself
85%of ChatGPT answers to provider searches name specific businesses
35%of search queries: no AI service names a provider at all

Sources: our own studies. AI Mode and clicks (around 300 websites, June 2025 to October 2026) · Provider analysis (873 real search queries from Austria, October 2026)

Where Google answers a question itself, fewer people click through to websites. At the same time, ChatGPT usually names specific businesses for provider searches. If you are missing there, you are not even considered in the first step. For about a third of search queries, however, no service names a provider at all. GEO cannot get anyone into those answers. That is why it pays to check first which of your questions trigger recommendations at all.

What is proven to go with citations

Many GEO guides recommend short sentences, lists, tables and statistics. We tested 16 such recommendations on 522 real search queries, each time comparing pages that ranked similarly on Google. That shows what counts beyond the ranking.

The clearest link is with a direct answer to the search query: in Perplexity the chance of a citation rises about 2.5 times per level, in Google’s AI Overview about 1.6 times. Lists, tables and statistics show no reliable link. A study about 70 times larger reaches the same conclusion (Lee 2026).

The five levers, and how well they are backed

Each lever says whether we measured it in our own data or whether it is based on experience. That way you can decide where to start.

  1. 1

    Answer the question right away

    AI services take individual passages. A passage that gives the answer in its first sentence can be lifted out and cited.

    How to do it: Every important section starts with the answer in one or two sentences. Reasons and details follow.

    Measured in our dataReliable link in Google AI Overview and Perplexity, data test.

  2. 2

    Rank well on Google

    What the AI does not find in search, it cannot cite. Technology, content and links remain the foundation.

    How to do it: Check indexing, loading speed and page structure, then improve the pages just short of page one.

    Measured in our dataPositions 1 to 3 are cited about 3.8 times as often in the AI Overview as positions 4 to 10, provider analysis.

  3. 3

    Say clearly who you are

    The AI links statements to a business, a service and a place. Changing names and conflicting details make that hard.

    How to do it: Use the same name, services and location everywhere: on your website, in profiles and in your structured data (Schema.org).

    Experience, not measuredFrom our work on entities. We have not measured the effect ourselves yet.

  4. 4

    Appear on other sites

    Answers are built from several sources. If you are missing from the pages cited for a topic, you are named less often.

    How to do it: Check which pages the AI cites for your questions, such as directories, trade media or comparison sites, and get present there.

    Experience, not measuredVisible in our measurements of which pages get cited. We have not measured the effect of a new mention.

  5. 5

    Measure repeatedly

    AI answers fluctuate. Ask once and you easily mistake chance for a trend.

    How to do it: A fixed set of your customers’ questions, several services, measurements on several days.

    Measured in our dataAsked the same question three times, Google’s AI Overview made the same call on naming providers in only about 71% of cases, ChatGPT in about 93%.

How to measure GEO

GEO can be measured, but not with a single test. These figures make sense:

  • Mentions per question and service: for which of your questions do ChatGPT, Perplexity or Google name your brand or cite your page?
  • Share against competitors (share of voice): how often are you named, how often are others?
  • Visits from AI services: visible in your analytics through referrers such as chatgpt.com or perplexity.ai.
  • Fluctuation: give every number with a range, because answers change from day to day.
Analysis in the Atziry platform: quick wins per subtopic with citations and your own share
A real view from our platform: citations and your own share per subtopic. Brands replaced.

What GEO costs and when it pays off

The cost depends on how many questions, markets and competitors are measured and how much content work is needed. Before we start, we give you a fixed price based on scope.

Whether it pays off depends mainly on your questions. If your customers ask questions where AI services recommend providers, GEO usually makes sense. If nobody is named for your questions, classic SEO brings more. For a first estimate of how strongly your industry is affected, try the free AI click calculator.

Sources

Common questions about GEOShort answers

What does GEO mean?
GEO means Generative Engine Optimization: building content so that AI services like ChatGPT, Perplexity and Google cite it as a source in their answers.
Do I need GEO if I already do SEO?
SEO stays the foundation, because well ranked pages are cited more often in AI answers too. GEO adds two questions: do your pages answer your customers’ questions directly, and are you mentioned where the AI looks for sources?
What is the difference between GEO and AEO?
The terms overlap a lot. GEO is mostly used for the whole picture: brand, sources and content. AEO (Answer Engine Optimization) mainly means the work on individual answer paragraphs.
What is AEO?
What is LLM SEO, and is it the same as GEO?
Essentially yes. LLM SEO, LLMO, GAIO and GEO describe the same work: making sure language models like ChatGPT, Gemini or Perplexity know a brand, describe it correctly and cite it as a source. Unlike classic SEO, what counts is not only the position in a results list but whether the AI names or links you in its answer.
What are the three levels of LLM SEO, and how do they work?
First, training knowledge: what a model knows about your brand from earlier data. Second, live search: pages the system looks up on the web for a current answer. Third, the answer itself: whether the information sought is stated so clearly on your page that it is taken over and linked. The second and third levels are the ones you can influence and measure directly.
d · i
What role does training data play in AI citations?
Training data shapes what a model knows about you without searching, but it does not link a source. Linked sources come from live search: according to OpenAI, the links in ChatGPT come from the queries it runs for the answer. For citations, what counts are pages found in that search that answer the question directly.
d · a
How quickly does GEO work?
There is no general answer. Changes only show once search engines and AI services have re-read the pages, and answers fluctuate. That is why we measure a baseline before we start and then at fixed intervals.
Does FAQ schema help me get cited?
A direct effect is not proven. The numbers on this and four other common assumptions are in our data test.
Data test
Can you buy your way into ChatGPT or Perplexity?
Not into the answer itself. ChatGPT now shows ads, but they are labeled as sponsored and separate from the answer. Whether the AI names you in the answer depends on your organic visibility.
ChatGPT ads
What does GEO cost?
It depends on scope: the number of questions, markets and competitors and the content work. Before we start, we give you a fixed price based on scope.
SEO and GEO

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