--- title: "GEO rankings 2026: ChatGPT, Perplexity, AI visibility · WebConsulting" url: https://web-consulting.fr/en/guides/geo-referencement-ia-guide/ updated: 2026-08-30 --- GEO 8 min · June 15, 2026 Page last updated on 26 August 2026 # GEO: getting cited by ChatGPT, Perplexity and Google AI Overview GEO explained simply: how to optimize your site to appear in generative AI answers. In this guide [What is GEO?](#definition) [GEO vs SEO: what's the difference?](#difference-seo) [How AI engines choose their sources](#comment-ca-marche) [How to optimize for GEO](#optimiser) [How to measure your AI visibility](#mesurer) ## What is GEO? GEO (Generative Engine Optimization) is the set of techniques that get your site cited in answers generated by AI like ChatGPT, Perplexity, Gemini and Google AI Overview. Where SEO aims to appear in the list of Google results, GEO aims to have your brand mentioned directly in the answer the AI produces. According to the Stanford Web Credibility Project, **75% of users judge a company's credibility by the quality of its website**: being cited by an answer engine becomes a credibility signal comparable to Google ranking ([source: Stanford Web Credibility Project](/sources/)). Companies optimizing their GEO presence now are gaining a structural head start on competitors. ## GEO vs SEO: what's the difference? SEO and GEO are complementary, not opposed. SEO optimizes for traditional search engines (ranking, position, clicks). GEO optimizes for language models (being cited, being recommended, being perceived as an authoritative reference in your field). Concretely: good SEO puts you at position 1 on Google when someone types 'divorce lawyer Paris'. Good GEO makes ChatGPT answer 'firm X is recognized for divorce cases in Paris' when asked directly. ## How AI engines choose their sources Generative AI aggregates its answers from sources indexed during training and, for recent models, via real-time web searches. They favor: structured content (clear headings, short paragraphs, lists), sources perceived as authorities (backlinks, mentions, schema.org), precise content that directly answers a question. Perplexity and Google AI Overview perform real-time searches and cite their sources. ChatGPT (depending on the model and web browsing activation) can rely on training data or live searches. In all cases, the quality and clarity of your content is decisive. ## How to optimize for GEO Four main levers: (1) Q&A format content: directly answer precise questions on your pages. AI engines love short, factual, well-structured answers. (2) Enriched Schema.org: tag your content with the right Schema types (FAQPage, HowTo, Article, Organization). This helps AI understand and cite your content. (3) llms.txt file: create a /llms.txt file at your site's root summarizing who you are, what you do and your key pages. Some AI crawlers read it first. (4) Topical authority: publish regularly on your area of expertise to be recognized as a reference. Avoid vague or 'filler' content: AI engines prefer citing pages that provide a precise answer over generalist pages. Two third-party measurements explain why these levers matter: **70% of SMB sites have no clear call to action** (WPBeginner, [source](/sources/)) and **46% of Google searches have local intent** (GoGulf, [source](/sources/)). A citable page answers a precise question and gives an action to follow; for a local business, city pages and the Google Business Profile are the first levers for a citation on local queries. ## How to measure your AI visibility Measure your GEO visibility by directly asking your target queries to ChatGPT, Perplexity and Gemini. Note whether your brand, site or expertise appears in the answers. Tools like Profound, Otterly.ai or BrightEdge Generative Parser offer automated tracking. At WebConsulting, we run an initial GEO audit (benchmark of current visibility across 10 to 15 AI answers) before every engagement, then repeat it quarterly to measure progress. ## Questions & answers 01 Is an llms.txt file essential to be cited by ChatGPT? It's not essential, but it's an emerging convention some AI crawlers read first. We set it up systematically, alongside Schema.org. 02 How do I know if my company is already cited by an AI? Directly ask your target queries to ChatGPT, Perplexity and Gemini, and note if your brand appears. It's the simplest test before investing in automated tracking tools like Profound or Otterly.ai. ### Need a hand? Our teams handle this type of mission from A to Z, with a tailored proposal adapted to your context. [Talk about your project](/en/contact/) Partager [](https://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fweb-consulting.fr%2Fguides%2Fgeo-referencement-ia-guide%2F&title=GEO%3A%20getting%20cited%20by%20ChatGPT%2C%20Perplexity%20and%20Google%20AI%20Overview)[](https://twitter.com/intent/tweet?text=GEO%3A%20getting%20cited%20by%20ChatGPT%2C%20Perplexity%20and%20Google%20AI%20Overview&url=https%3A%2F%2Fweb-consulting.fr%2Fguides%2Fgeo-referencement-ia-guide%2F)[](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fweb-consulting.fr%2Fguides%2Fgeo-referencement-ia-guide%2F)[](https://wa.me/?text=GEO%3A%20getting%20cited%20by%20ChatGPT%2C%20Perplexity%20and%20Google%20AI%20Overview%20https%3A%2F%2Fweb-consulting.fr%2Fguides%2Fgeo-referencement-ia-guide%2F)[](mailto:?subject=GEO%3A%20getting%20cited%20by%20ChatGPT%2C%20Perplexity%20and%20Google%20AI%20Overview&body=https%3A%2F%2Fweb-consulting.fr%2Fguides%2Fgeo-referencement-ia-guide%2F) In this guide - [What is GEO?](#definition) - [GEO vs SEO: what's the difference?](#difference-seo) - [How AI engines choose their sources](#comment-ca-marche) - [How to optimize for GEO](#optimiser) - [How to measure your AI visibility](#mesurer) Related service [Our GEO service](/expertises/referencement-geo/) Read next - [How to choose your web agency in 2026](/en/guides/choisir-agence-web-france/) - [The complete SEO audit checklist for 2026](/en/guides/audit-seo-checklist-2026/) - [WordPress or Astro in 2026: which to choose for your site?](/en/guides/wordpress-vs-astro-2026/) [ ![Benjamin M., founder of WebConsulting](/img/logo.webp) ](/en/fondateur/) [ Benjamin M. ](/en/fondateur/) Independent web developer and SEO/GEO consultant based in Dijon, active worldwide. Founder of **WebConsulting**. Specialized in **Astro**, **technical SEO** and **AI search optimization**. SIRET 791 747 389 00025. [Learn more](/en/a-propos/) [LinkedIn →](https://www.linkedin.com/in/benjamin-m/) Read next [How to choose your web agency in 2026](/en/guides/choisir-agence-web-france/) [The complete SEO audit checklist for 2026](/en/guides/audit-seo-checklist-2026/) [WordPress or Astro in 2026: which to choose for your site?](/en/guides/wordpress-vs-astro-2026/)