What Is GEO?
Generative Engine Optimisation (GEO) is the practice of improving a business website so that AI search engines — including ChatGPT, Perplexity, Google AI Overviews, Claude, and Gemini — can discover, understand, and recommend it. GEO differs from traditional SEO in that AI search engines summarise answers directly rather than presenting a list of blue links.
According to SparkToro research, AI-referred web traffic grew by 527% between January and May 2025. Gartner projects that traditional search engine traffic will decline by 50% by 2028 as users shift to AI-powered assistants for discovery.
How GEO Differs from Traditional SEO
Traditional SEO focuses on ranking in search engine results pages (SERPs) — the familiar list of blue links that Google has served for over two decades. Success is measured by keyword rankings, click-through rates, and organic traffic from search results.
GEO focuses on a fundamentally different surface: AI-generated summaries and recommendations. When a user asks ChatGPT "What's the best plumber near me?" or queries Perplexity for "dentist recommendations in Chicago", the AI does not present a list of links. It provides a direct answer, often citing specific businesses.
| Aspect | Traditional SEO | GEO |
|---|---|---|
| Success metric | Keyword rankings | AI citations |
| Key signals | Backlinks, content relevance | Schema markup, citability, brand authority |
| Content format | Keyword-optimised pages | Self-contained answer blocks |
The Three Pillars of GEO
AI search engines rank businesses primarily on three signals:
1. Entity Recognition — This is how well the AI can identify what your business is and does. Entity recognition depends almost entirely on structured data (JSON-LD schema markup). A business without Organisation, Product, or FAQPage schema is effectively invisible to AI entity graphs.
2. Citability — This measures how easily the AI can extract specific, factual answers from your website. Research from Princeton, Georgia Tech, and IIT Delhi (2024) found that content blocks between 134 and 167 words long, written with a direct answer in the first sentence, achieve 30 to 115 percent higher AI citation rates.
3. Brand Authority — This reflects how often your business is mentioned across trusted platforms. AI models use mentions on YouTube, Reddit, LinkedIn, and Wikipedia to decide which businesses to trust and recommend.
Key Takeaways
How to Get Started with GEO
The first step is understanding where your website currently stands. A GEO Revenue Report analyses your site across six dimensions — structured data, citability, technical foundations, brand authority, platform optimisation, and content quality — and provides prioritised recommendations with revenue impact estimates.
Unlike generic SEO audits, a GEO Revenue Report is written in business language with clear next steps you can action immediately or hand to a developer.