What is GEO? The complete guide to Generative Engine Optimization
GEO — Generative Engine Optimization — is the discipline of optimizing a website to be cited and recommended by AI-based search engines: ChatGPT, Perplexity, Google Gemini. It’s the equivalent of SEO, but for generative AI.
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SEO vs GEO: what are the differences?
SEO (classic referencing)
- Target Google, Bing, Yahoo
- Optimize for keywords
- Measured in ranking positions
- Rely on backlinks
- Results in link list
GEO (AI referencing)
- Target ChatGPT, Perplexity, Gemini
- Optimized for citability
- Measured in citation rate
- Relies on authority and structure
- Results integrated into AI responses
The 5 pillars of GEO
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1. Informative and factual contentAIs prefer pages that directly answer user questions with facts, figures, and clear definitions.
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2. Clear H1/H2/H3 structureA logical heading hierarchy allows AIs to break down your content into understandable, quotable chunks.
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3. Schema markup (structured data)JSON-LD tags (Organization, Product, FAQ, HowTo, Article) signal to the AI the precise nature of your content.
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4. E-E-A-T SignalsExperience, Expertise, Authority, Reliability — the same criteria as Google, but even more important for generative AI.
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5. Accessibility to AI crawlersYour robots.txt and your HTTP headers must allow crawlers like GPTBot, PerplexityBot and Googlebot to index your content.
Why GEO is urgent for French companies
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6M searches/month on ChatGPT in France
The term “chatgpt” is searched 6 million times per month in France. Companies visible in AI capture a share of this traffic.
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No Google AI Overviews in France (yet)
France does not yet have Google AI Overviews. But ChatGPT Search and Perplexity are already here — and their users are active buyers.
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Early movers win it all
As in 2010 with SEO, the first to optimize their site for AI will occupy the dominant positions. It’s now that it’s happening.
Questions frequentes
No, GEO complements SEO. The two disciplines coexist because Google remains the dominant engine, but generative AI takes an increasing share of searches. A comprehensive strategy combines both.
The GEO audit analyzes your site on all AI citability criteria and gives you a score /100 with priority actions. It's the quickest way to know where you stand.
No. Even a small craft site or blog can be well GEO optimized. Size matters less than structure, clarity of content and credibility of information.
The GEO score is a score out of 100 that evaluates the citeability of your site by AI. It takes into account: content structure, schema markup, authority signals, technical accessibility to AI crawlers, and quality of E-E-A-T information.
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