Definitions: SEO and GEO in plain English
SEO (Search Engine Optimization) is about optimising a website to show up in search engine results, primarily Google. The goal: generate clicks from queries typed by users.
GEO (Generative Engine Optimization) is a recent discipline that emerged with the rise of generative assistants (Aggarwal et al., "GEO: Generative Engine Optimization", 2024). It’s about optimising a brand’s presence inside the synthetic answers generated by AI engines: no clickable link, no classic results page. The AI names your brand, explains your positioning, or recommends you directly inside its response.
Comparison table: GEO vs SEO
| Dimension | SEO | GEO |
|---|---|---|
| Target channel | Search engines (Google, Bing) | Generative AIs (ChatGPT, Claude, Gemini, Perplexity, Copilot and Mistral) |
| Result format | List of clickable links | Synthetic text answer with citations |
| Primary goal | Drive traffic to the site | Be named / recommended inside the AI’s answer |
| Optimisation signals | Backlinks, keywords, Core Web Vitals | E-E-A-T, structured data, citable content, a well-defined entity |
| Success metrics | Position, traffic, clicks | AI citation frequency, share of voice, position inside the answer |
| Time to results | Usually 3 to 12 months | Variable, with no guaranteed timeframe |
| Required skills | Web tech, link building, content | AI-oriented editorial engineering, semantic structuring, advanced markup |
Why GEO and SEO coexist (and should)
In 2026, Google remains by far the main entry point for search: its engine holds around 90% of the global search market (source: Statcounter). Dropping SEO would be a mistake. But ignoring GEO means neglecting the fastest-growing channel: sessions referred by generative AI grew +527% across 19 GA4 properties between January and May 2025, compared with 2024 (source: Previsible, via Search Engine Land), and a visitor coming from an AI converts 4.4× better than a Google visitor (source: Semrush, 2025).
The right strategy in 2026 is hybrid. That’s precisely the NEXUS GEO approach: 100% GEO expertise, built on a careful read of the existing SEO. Our audits integrate both dimensions to avoid conflicts and make the most of the overlap.
How NEXUS GEO combines both disciplines
NEXUS GEO was born from the conviction that GEO can’t be improvised by adding a few pages to an existing site. Our three-step methodology (AI Audit, Content Engineering, AI Pre-selection) includes an analysis of your existing SEO to find where the two reinforce each other. The goal: progress on GEO without sacrificing SEO, and move forward on both fronts.
- AI Audit (47 criteria, score out of 100): assessment of your presence in five AI engines (ChatGPT, Gemini, Perplexity, Mistral and Google AI Overviews), taking your existing SEO into account, with a benchmark against 3 named competitors.
- Content Engineering: production of content designed to be cited by AI engines, without degrading on-page SEO.
- AI Pre-selection: technical rollout of what makes your site readable and citable by AI engines, then regular tracking of your citations in their answers.
FAQ
Want to see what these principles look like on your site? Start a NEXUS GEO audit, delivered within 10 business days, no commitment. Detailed prices are on the pricing page.
GEO audit
Where does your brand stand on AI engines today?
NEXUS GEO delivers a GEO audit that takes your existing SEO into account: score per pillar, competitor benchmark and a 6-month roadmap. Delivered within 10 business days, no commitment.
