Search marketing is shifting. For years, SEO was the only game in town — rank higher on Google, get more clicks, win more clients. But a new discipline called GEO (Generative Engine Optimisation) is changing how businesses think about online visibility. If you’ve started asking ChatGPT or Google’s AI Overviews for recommendations instead of scrolling through ten blue links, you already understand why.
SEO (Search Engine Optimisation) improves your visibility in traditional search engine results pages, whilst GEO (Generative Engine Optimisation) optimises your content to appear in AI-generated answers from tools like ChatGPT, Google AI Overviews, and Perplexity. Both disciplines matter in 2025 — but they require different strategies and success metrics.
Key Takeaways
- GEO is brand new: the term was coined in a Princeton/Georgia Tech study published in 2023, making it one of the youngest disciplines in digital marketing.
- AI search is growing fast: Google’s AI Overviews now appear in over 47% of US search queries (BrightEdge, 2024) — and UK adoption is catching up rapidly.
- Click-through rates are falling: pages shown in AI Overviews see an average 34% drop in organic CTR compared to a standard featured snippet (Search Engine Land, 2024).
- GEO and SEO share foundations: high-quality, authoritative, well-structured content helps you win in both — but GEO additionally requires clear citations, structured data, and brand mentions across the web.
- Businesses that act early win: AI models train on existing content, so brands that establish authority now are far more likely to be cited as AI search scales.
What Exactly Is SEO and How Does It Work?
Search Engine Optimisation is the practice of improving a website’s visibility in organic (unpaid) search engine results. When someone types a query into Google or Bing, the search engine crawls billions of pages and ranks them based on hundreds of signals — relevance, authority, page speed, user experience, backlinks, and more.
SEO has three core pillars:
- Technical SEO: ensuring search engines can crawl, index, and render your site correctly. This covers site speed, mobile-friendliness, structured data, and clean URL structures.
- On-page SEO: optimising individual pages with target keywords, compelling title tags, meta descriptions, header hierarchy, and high-quality copy.
- Off-page SEO: building authority through backlinks, brand mentions, digital PR, and social signals that tell search engines your site is trustworthy.
The goal of traditional SEO is straightforward: appear as high as possible in the search engine results page (SERP) for queries your target audience is typing. A higher ranking means more impressions, more clicks, and ultimately more revenue. Google processes roughly 8.5 billion searches per day (Internet Live Stats, 2024), so even small ranking improvements can translate into significant business impact.
SEO is a long game. It typically takes three to six months before new content or optimisation work produces measurable ranking gains, but the compounding returns over time make it one of the highest-ROI channels in digital marketing.
What Exactly Is GEO and Why Does It Matter?
Generative Engine Optimisation is the process of optimising your content so it gets cited, referenced, or summarised by AI-powered search tools and large language models (LLMs). These include Google’s AI Overviews, ChatGPT’s browsing mode, Perplexity AI, Microsoft Copilot, and emerging AI agents that answer questions on behalf of users.
Unlike traditional search, these tools don’t simply return a list of ranked links. They synthesise information from multiple sources and generate a direct answer — sometimes without the user ever clicking through to your site. Your goal with GEO is to become one of those cited sources.
The Princeton and Georgia Tech researchers who coined the term found that certain content strategies consistently increased citation frequency in AI-generated responses. The top performers were:
- Adding statistics and cited data points
- Writing in a fluent, authoritative style
- Including clear quotes and expert perspectives
- Structuring content with clear headings and direct answers
- Earning brand mentions on third-party sites (especially reputable publications)
GEO matters because AI search is no longer a niche behaviour — it’s mainstream. Brands that ignore it risk becoming invisible to a growing segment of their audience, even if their traditional SEO rankings remain strong.
How Do GEO and SEO Differ in Strategy?
At a surface level, both disciplines want the same thing: more visibility. But the tactics, success metrics, and content approaches diverge significantly. The table below highlights the key strategic differences.
| Factor | SEO | GEO |
|---|---|---|
| Primary goal | Rank in SERP positions 1–10 | Be cited in AI-generated answers |
| Success metric | Rankings, organic traffic, CTR | Brand mention frequency, citation share |
| Content focus | Keyword targeting and search intent | Direct answers, statistics, expert quotes |
| Key signals | Backlinks, E-E-A-T, page speed, UX | Authority, brand mentions, structured data |
| Tracking tools | Google Search Console, Ahrefs, Semrush | Perplexity citations, AI monitoring tools |
| Result timeline | 3–6 months | Ongoing — tied to model training cycles |
| Click-throughs | Drives direct traffic to your site | May answer without a click (zero-click) |
The most important strategic difference is intent. SEO content is often built around keyword clusters and search volume data. GEO content is built around being the most trustworthy, citable answer to a question — regardless of how it’s phrased. That shift requires a different mindset: think less like a keyword strategist and more like an expert witness.
What Do GEO and SEO Have in Common?
Despite their differences, GEO and SEO share a common foundation: the need for high-quality, authoritative content. The signals that make a page rank well in Google — expertise, authoritativeness, trustworthiness (Google’s E-E-A-T framework) — are the same signals that make AI models more likely to cite you.
| Shared principle | Why it matters for SEO | Why it matters for GEO |
|---|---|---|
| Author expertise | Google rewards demonstrated knowledge | LLMs favour cited expert perspectives |
| Clear structure | Helps crawlers understand content hierarchy | Helps AI extract direct, quotable answers |
| Data & statistics | Earns backlinks and topical authority | AI cites specific, verifiable data points |
| Backlinks & mentions | Core ranking signal | Third-party validation increases citation likelihood |
| Technical health | Required for crawling and indexing | Required for AI crawlers (e.g. GPTBot, PerplexityBot) |
| Schema markup | Enables rich results (FAQs, reviews) | Helps AI understand entities and relationships |
The practical implication is that you don’t have to choose between GEO and SEO. A well-executed content strategy that prioritises expertise, clear answers, and technical excellence will move the needle on both. Think of GEO as an extension of your existing SEO work, not a replacement for it.
How Should UK Businesses Approach GEO Right Now?
UK businesses are at an interesting inflection point. Google’s AI Overviews rolled out in the US in May 2024 and began appearing in UK search results later that year. Perplexity, ChatGPT, and Copilot have all grown significantly amongst UK business users. The window to establish GEO authority before your competitors do is still open — but it won’t be forever.
Here are the most impactful GEO tactics to implement in 2025:
- Write for direct answers: structure your content so the answer to the page’s primary question appears within the first 100 words. Use the “question as heading, answer immediately below” format that AI tools love to extract.
- Include verifiable statistics: AI models are trained to cite specific, sourced data. Every major claim should include a number and a source. This post is an example of that in practice.
- Build brand mentions across the web: get featured in industry publications, contribute expert quotes to journalists (tools like JournoRequest help), and earn brand citations even without backlinks. AI models don’t just read your site — they read the whole web.
- Implement schema markup: FAQ schema, HowTo schema, and Article schema all help AI tools understand your content structure and extract information accurately.
- Diversify your presence: ensure your brand appears consistently across Google Business Profile, Trustpilot, LinkedIn, and industry directories. AI synthesises multiple sources — the more places you appear authoritatively, the better.
If you’re unsure where to start, a combined SEO and GEO audit will identify the gaps fastest. The WebMax Digital team works with UK businesses to build visibility strategies that account for both traditional search and AI-driven discovery.
Related reading: Explore our guides on SEO and AI optimisation services, what is geo?, ai seo services guide, optimize for chatgpt citations, and how to rank higher in google maps for more actionable insights.
Frequently Asked Questions
Is GEO replacing SEO?
No — at least not yet. Traditional search still drives the vast majority of web traffic, and organic rankings remain critical for most UK businesses. GEO is best understood as an emerging layer on top of SEO, not a replacement for it. The two disciplines share most of their foundations, and a strong SEO strategy makes GEO easier to execute. The smart move is to build both simultaneously rather than waiting to see which one “wins.”
How do I know if AI tools are mentioning my brand?
There are a growing number of tools designed to track AI brand mentions. Platforms like Brandwatch, Mention, and specialist GEO tools such as Peec.ai and Profound are emerging to fill this gap. You can also manually prompt ChatGPT, Perplexity, and Google AI Overviews with queries relevant to your industry and check whether your brand appears. It’s labour-intensive but gives you a baseline understanding of your current GEO footprint.
Does having a high Google ranking guarantee I’ll appear in AI Overviews?
Not necessarily. Google’s AI Overviews often draw from sources that rank in the top 10, but research shows that roughly 40% of AI Overview citations come from pages that don’t rank in the traditional top 10 for that query. Google prioritises content that best answers the question, not just content with the most backlinks. This means GEO gives smaller brands a genuine opportunity to punch above their weight if their content is well-structured and authoritative.
What types of content work best for GEO?
Content that provides direct, factual answers performs best. This includes definition posts (like this one), how-to guides, comparison articles, statistical round-ups, and expert Q&As. Content with clear structure — short paragraphs, question-based headings, bulleted lists, and tables — is far more likely to be extracted and cited by AI tools. Conversational, narrative-only content tends to underperform in AI search even if it ranks well traditionally.
How long does GEO take to show results?
GEO timelines are harder to predict than SEO because they’re tied to when AI models are updated or re-trained. Some results can appear quickly if you’re optimising for AI tools that browse the web in real time (like Perplexity or ChatGPT with browsing enabled). For models with fixed training cutoffs, you may need to wait for the next update cycle. That said, monitoring citation frequency in real-time AI tools can give you a useful early signal within weeks of publishing optimised content.
Does GEO apply to local businesses in the UK?
Yes, and it’s increasingly important for local businesses. When someone asks an AI tool “who’s the best physiotherapist in Manchester?” or “what’s a good digital marketing agency in London?”, those tools draw on business listings, review platforms, and local content to generate answers. For UK local businesses, this means optimising your Google Business Profile, earning consistent positive reviews, and ensuring your business is mentioned in local digital publications and directories.
Is GEO only relevant for Google, or does it apply to ChatGPT and Perplexity too?
GEO applies across all AI-powered search and answer engines, including Google AI Overviews, ChatGPT (with browsing), Perplexity AI, Microsoft Copilot, and any emerging AI assistants. Each platform has slightly different weighting — Perplexity, for example, heavily favours pages it can crawl in real time, whilst ChatGPT draws on both its training data and live web access. A robust GEO strategy targets all major platforms rather than optimising for just one.
Do I need a separate budget for GEO, or can it be part of my existing SEO spend?
For most businesses, GEO doesn’t require a separate budget — it’s better understood as a refinement of your existing content and SEO investment. The biggest changes are structural: writing content that answers questions more directly, adding data and citations, implementing schema markup, and building brand presence beyond your own website. If you’re already investing in content marketing and digital PR, you can layer GEO principles in without significantly increasing spend. Businesses starting from scratch will benefit most from an integrated SEO and GEO strategy from day one.
Sources
- Aggarwal, S. et al. (2023). GEO: Generative Engine Optimization. Princeton University & Georgia Tech. Available at: arxiv.org/abs/2311.09735
- BrightEdge (2024). AI Search Impact Report: How Google AI Overviews Are Reshaping Organic Traffic. Available at: brightedge.com
- Search Engine Land (2024). AI Overviews reduce click-through rates by up to 34%, study finds. Available at: searchengineland.com
- Internet Live Stats (2024). Google Search Statistics. Available at: internetlivestats.com
- Google (2024). Creating helpful, reliable, people-first content (E-E-A-T guidelines). Google Search Central. Available at: developers.google.com