What is GEO (Generative Engine Optimization)?
GEO is the art of optimising your website to be recommended by AI response engines such as ChatGPT, Perplexity and Google AI Overview - beyond traditional SEO.
Test my AI visibility for freeGEO (Generative Engine Optimization) is an emerging discipline that aims to optimise a website's visibility in response engines powered by artificial intelligence. Unlike traditional SEO, which targets Google search results (the famous "blue links"), GEO targets responses generated by ChatGPT, Perplexity, Google AI Overview and Gemini. These AI engines do not return a list of results: they formulate a unique, conversational response, often by directly recommending a company, product or service.
The stakes are high: when an AI recommends a competitor, it doesn't even mention you. There is no "page 2". Either you are mentioned or you are invisible. The AI selection criteria are different from traditional SEO: they give priority to structured data (Schema.org), E-E-A-T trust signals (Experience, Expertise, Authoritativeness, Trustworthiness), the consistency of NAP information and the richness of editorial content. GEO-Auditor is the first free tool in France to measure these criteria and give you a GEO /100 score with concrete recommendations.
SEO vs GEO - What are the differences?
| Criteria | Classic SEO | GEO |
|---|---|---|
| Engines | Google, Bing (blue links) | ChatGPT, Perplexity, Google AI Overview |
| Response format | 10 blue links per page | A single, conversational response |
| Key criteria | Backlinks, keywords, domain authority | E-E-A-T, Schema.org, NAP, structured content |
| Measure | Position (1st, 2nd, 3rd...) | Citation / recommendation (yes/no + position) |
| User behaviour | Compare several results | Trust the AI response directly |
How AIs choose to recommend you
AI engines don't work like Google. They analyse your site according to 4 main criteria to decide whether you deserve to be recommended to their users. Here are the signals that make the difference.
E-E-A-T
Experience, Expertise, Authoritativeness, Trustworthiness - AIs evaluate the credibility of your site before deciding to recommend you.
Schema.org
Structured data (JSON-LD) enables AIs to understand your business, services, prices and features in detail.
NAP & coherence
Name, address and telephone number are identical everywhere (website, Google, directories). The AIs check for consistency to validate your identity.
Structured content
FAQs, themed pages, hierarchical headings, meta descriptions - well-organised content helps AIs to extract relevant information.
The AI engines concerned
GEO-Auditor tests your visibility on the 4 main artificial intelligence engines that recommend companies, products and services. Each has its own specific features.
ChatGPT
OpenAI
The world's most widely used AI engine. Recommends companies, products and services based on its training data and web browsing.
Perplexity
Perplexity AI
AI search engine with quoted sources. Particularly used for searches for local recommendations and comparisons.
Google AI Overview
AI summary displayed at the top of Google results. Directly impacts the click-through rate to your site from traditional search.
Gemini
Google's AI assistant, integrated with search and the Google ecosystem. Uses Google Maps, reviews and Knowledge Graph data.
Frequently asked questions about GEO
No, GEO complements SEO. SEO remains essential for traditional search results (Google, Bing). GEO adds a layer of optimisation for AI response engines (ChatGPT, Perplexity, Google AI Overview). The two strategies reinforce each other.
GEO-Auditor directly tests your visibility in 4 AI engines: ChatGPT, Google AI Mode, Perplexity and Google AI Overview. In 30 seconds, you'll know whether the AIs are quoting you, in what position and with what URL.
All sites seeking to be recommended: campsites, hotels, restaurants, law firms, notaries, agencies, SaaS, e-commerce, etc. GEO has a particularly strong impact on local businesses (tourism, liberal professions) and B2B sites.
The first results appear in 2 to 6 weeks after optimisation of Schema.org, structured content and E-E-A-T signals. AIs regularly re-index their sources, so technical improvements are taken into account relatively quickly.
The basic GEO audit is 100% free, with no registration required. You get a score /100 with detailed recommendations. For tracking over time and full AI visibility analysis (Pillar 5), create a free account - 5 full audits per month included.
Test your AI visibility for free
GEO /100 score in 30 seconds - no registration, no commitment.