For two decades, getting found online meant one thing: ranking on Google. In 2026, it means two. Alongside traditional search sits a fast-growing layer of AI answer engines, ChatGPT, Perplexity, and Google Gemini, that summarise the web into a single response. To stay visible, UK businesses now need both SEO and GEO. Here is how they differ, and why you need both.
The core difference
SEO (Search Engine Optimisation) optimises your content to rank as a link in search results, the goal is a click. GEO (Generative Engine Optimisation) optimises your content to be cited inside an AI-generated answer, the goal is a citation. One competes for position on a page; the other competes for inclusion in a paragraph.
SEO at a glance
- Target: ranked links on Google and other search engines.
- Success metric: rankings, organic traffic, and click-through rate.
- Levers: technical health, on-page optimisation, content depth, and authority.
GEO at a glance
- Target: citations inside AI answers from ChatGPT, Perplexity, and Gemini.
- Success metric: citation frequency and prominence, your share of voice in answers.
- Levers: entity clarity, structured data, direct answers, and citation-friendly writing.
SEO wins the click. GEO wins the citation. The brands that win both win the customer.
Why you need both
Traditional search is not going away, billions of queries still resolve on a results page every day. But an increasing share now resolve inside an AI answer, often with no click at all. Betting on only one channel leaves half your audience to competitors. The strategic advantage is that both disciplines draw on the same foundation: clear entities, clean structure, factual content, and earned authority.
One strategy, two channels
Because SEO and GEO share a content foundation, you do not need two separate programmemes. A single, well-architected content system, entity-rich, schema-marked, question-led, and factually precise, can rank on Google and be cited by AI. This is exactly how Kay & Co. works: SEO and GEO delivered as one compounding strategy for UK businesses.
Where to start
Begin with a visibility audit that measures both your Google rankings and your citation share across the major AI engines. From there, prioritise the fixes that move both metrics at once. The earlier you start on GEO, the more durable your advantage as search behaviour continues to shift.
Frequently asked questions
Neither is more important, they target different stages of discovery. SEO wins the click on a results page; GEO wins the citation inside an AI answer. UK businesses need both.
Yes. Entity-rich, well-structured, factual content with clean schema serves both search engines and generative engines, which is why Kay & Co. delivers them together.
Start with a visibility audit that measures both your Google rankings and your citation share across AI engines, then prioritise the highest-impact fixes.