SEO vs GEO: how to be found in the age of AI search
Search is no longer a list of ten blue links. This guide explains what Generative Engine Optimisation (GEO) is, how it differs from traditional SEO, and why both matter if you want to be seen by humans and AI alike.
If your customers now ask ChatGPT before they ask Google, ranking isn't enough - you have to be the source the model trusts enough to quote.
What is SEO?
SEO - Search Engine Optimisation - is the practice of making your website easy for search engines like Google and Bing to find, understand and rank. It covers the technical side (site speed, crawlability, structured data), the on-page side (titles, headings, content, keywords) and the off-page side (backlinks and brand authority).
Done well, SEO turns your website into a steady, compounding source of organic traffic - people who searched for what you do and clicked through to your site. If you want a quick read on where your site stands today, try our free AI SEO checker.
What is GEO?
GEO - Generative Engine Optimisation - is the practice of optimising your content so it gets surfaced, summarised and cited by AI answer engines like ChatGPT, Google's AI Overviews, Perplexity, Gemini, Claude and Copilot.
The shift is simple but significant: instead of users scanning a list of links and clicking one, an AI model reads dozens of sources and writes a single answer. Your job is no longer just to rank - it's to be the source the model trusts enough to quote.
Why GEO matters now
AI answers are the new front page
Google AI Overviews, ChatGPT search and Perplexity now answer questions directly - often before a user ever sees a link.
Citations equal trust
When a model quotes you, you gain attribution, traffic, and the implicit endorsement of being the chosen source.
Brand defensibility
If competitors are cited in AI answers about your category and you aren't, you quietly lose share of mind.
SEO vs GEO at a glance
The two disciplines share foundations but optimise for different surfaces. Use this table as a quick reference.
| Feature | SEO | GEO |
|---|---|---|
| Primary goal | Rank higher in the list of blue links on Google and Bing. | Be cited and quoted inside AI-generated answers. |
| Where you appear | Search engine results pages (SERPs), maps, image results. | ChatGPT, Google AI Overviews, Perplexity, Gemini, Claude, Copilot. |
| How you're chosen | Crawlers + ranking algorithm score relevance, authority, UX. | LLMs retrieve, summarise and cite sources that clearly answer the question. |
| Best content style | Keyword-targeted pages, long-form guides, internal linking. | Direct answers, definitions, structured comparisons, quotable stats. |
| Structured data | Helpful for rich results (FAQ, product, review schema). | Critical - schema and clean HTML help models parse and trust you. |
| Authority signals | Backlinks, domain age, brand search. | Brand mentions across the web, citations, presence in training data. |
| How you measure it | Rankings, impressions, clicks, organic sessions. | Share of AI answers, citation frequency, branded prompt tests. |
| Speed of change | Weeks to months - algorithmic but relatively stable. | Days to weeks - models and overviews update quickly. |
| Risk if ignored | Lost organic traffic to competitors. | Invisible inside the AI answers your customers now ask first. |
How they work together
GEO doesn't replace SEO - it sits on top of it. The same foundations that help Google rank you (crawlable HTML, clear structure, fast pages, trustworthy content) are the same signals that help an LLM parse and cite you. If your SEO is broken, your GEO will be too.
- Write pages that answer one specific question, clearly, near the top.
- Use proper headings, lists and schema so models can extract facts cleanly.
- Publish original data, quotes and definitions - quotable content gets quoted.
- Build brand mentions across reputable sites, not just backlinks.
- Test branded prompts in ChatGPT and Perplexity to see how you're being described.
Want to know where you stand?
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