For twenty years, the question in search optimisation was: "how do I appear on Google's first page?". In 2026, a new question is added: "how do I become the source the AI cites in its answer?". That is the whole point of GEO — Generative Engine Optimization.
When a user asks ChatGPT, Gemini or Perplexity a question, or reads a Google AI Overview, they no longer get ten links: they get a synthesised answer, built from a handful of sources. Being one of those sources is the new visibility — often invisible in conventional statistics, but decisive.
This guide explains what GEO is, how AI systems choose whom to cite, and above all 7 concrete actions to make sure your business is part of the answers.
of searches now end without a click (zero-click), AI included
synthesised answer replaces yesterday's 10 blue links
GEO: what exactly are we talking about?
GEO (Generative Engine Optimization) refers to the set of techniques that make a brand and its content visible — and above all cited — by answer engines based on artificial intelligence. The main ones: ChatGPT (and its web search), Gemini (Google), Perplexity, Copilot, and the AI Overviews displayed at the top of Google results.
The difference from traditional SEO is subtle but fundamental:
- SEO aims to get people to click on your page by ranking it high in a list of results.
- GEO aims to get the AI to use your content as a source in a written answer — whether or not the user clicks.
In other words, GEO no longer plays only on ranking, but on citation and brand mention. Being named by an AI as "a well-regarded SEO agency in Belgium" is a recommendation of a new kind of power.
AI systems don't "rank" pages: they synthesise an answer from sources they judge reliable and relevant. The game is no longer "be first", it's "be worthy of being cited".
Google's AI Overviews are not an American topic or an "upcoming" trend — they are already the search reality in Belgium and France:
- Belgium: live since 26 March 2025 (along with 8 other European countries — Germany, Ireland, Italy, Austria, Poland, Portugal, Spain, Switzerland).
- France: launched on 22 July 2026 (AI Overviews and AI Mode simultaneously, two months earlier than initially announced).
- AI Mode (the conversational mode that extends the AI Overview via a "Show more" button): rolled out in more than 200 countries and territories since October 2025.
For a Belgian or Walloon SME, this means one simple thing: your potential customers are already receiving a synthesised answer today, before they even reach a website — yours or a competitor's.
How do AI systems choose whom to cite?
No engine publishes its exact recipe, but observations converge: AI systems favour content that combines several trust signals.
- Clarity of the answer — Content that answers a precise question directly, without detours, is easier for an AI to pick up.
- Structure — Explicit headings, lists, tables, FAQs: well-structured information is more "extractable".
- Authority and reliability (E-E-A-T) — Experience, expertise, authoritativeness, trust: AI systems favour credible, verifiable sources.
- Multi-source consistency — Information repeated and confirmed in several places on the web inspires more trust than an isolated claim.
- Freshness — On many topics, AI systems favour recent, up-to-date information.
- Citable data — Figures, statistics, clear definitions: elements an AI can easily extract and attribute.
A crucial point: AI systems rely heavily on content that is already well ranked. Good SEO is not a competitor to GEO — it is its entry requirement.
7 concrete actions to get cited by AI
GEO is not black magic: it is good SEO, pushed one notch further towards clarity and proof. Here are the levers that matter.
- 1. Answer real questions, clearly — Structure your content around your customers' real questions, with a clear answer from the very first paragraph.
- 2. Add FAQs and definitions — Question-and-answer blocks and short definitions are particularly likely to be picked up by AI.
- 3. Structure with data (schema) — Article, FAQPage and LocalBusiness markup helps machines understand and attribute your content.
- 4. Rely on citable figures — A clear, sourced statistic is more likely to be picked up than a vague claim.
- 5. Strengthen your E-E-A-T — Identified authors, demonstrated expertise, a solid "About" page, customer reviews: trust signals feed AI systems.
- 6. Multiply consistent mentions — Being present and consistent across several reliable sources (directories, press, partners) strengthens your credibility in the eyes of the models.
- 7. Keep your SEO solid — Performance, indexing, quality content: without an SEO base, there is no GEO. It is the foundation everything rests on.
The good news for SMEs: these good practices serve both Google and AI. Clear, structured, credible content wins on both fronts — no need to choose.
GEO vs SEO: should you abandon traditional SEO?
Absolutely not. GEO doesn't replace SEO: it adds to it. Both aim at visibility, but at different stages of the journey.
| Criterion | Traditional SEO | GEO (AI engines) |
|---|---|---|
| Goal | Be ranked and clicked | Be cited as a source |
| Outcome | Position in the list | Mention in the answer |
| Key lever | Content + technical + links | Clarity + proof + authority |
| Measurement | Rankings, clicks, impressions | Citations, mentions, AI traffic |
| Dependency | — | Relies on good SEO |
Commercial and local queries ("SEO agency Liège", "website creation quote") continue to send highly qualified traffic via SEO. Informational queries, on the other hand, are partly shifting to AI answers. The winning strategy is to work on both together, with content that serves both.
How do you measure your visibility in AI?
GEO suffers from a paradox: it creates visibility that is sometimes invisible in conventional dashboards. Here is how to keep an eye on it.
- Test the AI tools yourself — Regularly ask ChatGPT, Gemini and Perplexity the key questions in your industry, and check whether your brand appears (and how it is described).
- Monitor AI referral traffic — In your analytics tool, look for visits coming from chat.openai.com, perplexity.ai or Gemini: this traffic, still modest, is growing fast and is highly qualified.
- Track your brand mentions — Being named on the web (press, directories, partners) is a direct credibility signal for AI systems.
- Look at Google's AI Overviews — On your strategic queries, see whether Google generates an AI summary and whom it cites.
At Ligne 1, we build GEO into our SEO approach: content designed to be cited, structured data, E-E-A-T and semantic strategy. Discover our SEO expertise for the AI era.
A textbook case, under observation
What AI systems cite is not necessarily what is true: it is what is written most clearly. We are testing this mechanism on an entirely fictional institute, where every page answers a question people really ask. The case file is public and was announced as an experiment from day one: the Cormac Brindlecott case.
Your questions about GEO and AI
What is GEO (Generative Engine Optimization)?
It is the set of techniques that make a brand and its content visible to, and cited by, AI answer engines: ChatGPT, Gemini, Perplexity and Google's AI Overviews. Where SEO aims to rank a page well, GEO aims to get the AI to use your content as a source in its answer.
Does GEO replace SEO?
No, it extends it. AI systems rely very heavily on content that is already well ranked and considered reliable. Good SEO therefore remains the foundation of GEO: without organic visibility and authority, a brand has little chance of being cited. GEO and SEO are worked on together.
How do you get cited by ChatGPT or Gemini?
Publish content that answers clearly the questions in your industry, structured (headings, lists, FAQ), backed by citable data, and reinforced by a consistent presence across several reliable sources. Add structured data (schema) and work on your E-E-A-T. The more your expertise is recognised elsewhere, the more AI systems will cite you.
How do you measure your visibility in AI?
Regularly query the AI tools on your key topics to see whether you are cited, monitor the referral traffic coming from chat.openai.com, perplexity.ai or Gemini, and track your brand mentions across the web. These signals reveal your presence in generative answers.
Is GEO useful for a local SME?
Yes. More and more people ask AI tools for "a good agency / a good provider in [city]". Clear local content, strong reviews and well-executed local SEO increase your chances of being the cited answer — exactly as with Google's local pack.
Be the answer, not just a link.
We audit your visibility on Google AND in AI, then build the content that gets you cited. Let's talk about your GEO + SEO strategy.