Quick Comparison
| Dimension | Google Search | ChatGPT |
|---|---|---|
| Search share | ~80% of searches (falling) | ~17% of global search queries (Q4 2025) |
| How it works | Ranks existing pages (10 blue links) | Generates answers from trained data + web |
| Average query length | ~4 words | ~23 words |
| Session depth | ~2 minutes | ~6 minutes |
| Result format | Links to external websites | Synthesised answers, sometimes with citations |
| Traffic referral | High (direct clicks) | Emerging — Vercel reports 10% of new signups |
| Optimisation approach | SEO (keywords, backlinks, technical) | GEO (content structure, schema, entity signals) |
| UK business discovery | Dominant for local, product, service searches | Growing for recommendation queries |
How Google Finds and Ranks Businesses
Google indexes websites by crawling them with Googlebot, then ranks pages based on hundreds of signals — relevance to the query, page quality (E-E-A-T), technical health, backlinks, and Core Web Vitals performance. When someone searches for a product or service, Google shows them a list of pages that best match the query.
How Google discovers your business:
- Googlebot crawls your website and indexes its pages
- Your pages appear in search results for relevant queries
- Google Business Profile drives local discovery ("plumber near me")
- Structured data (schema markup) enables rich results — star ratings, FAQs, events
Citation capsule: Google processes approximately 8.5 billion searches per day. Despite the rise of AI search, Google still holds approximately 80% of search market share in Q4 2025. However, ChatGPT reached 17% share — the first time in two decades that a competitor achieved double-digit market share against Google. Source: First Page Sage, 2026; Statcounter.
What Google is best for:
- Local searches ("restaurant Bristol", "electrician Manchester")
- Product and e-commerce searches ("running shoes UK", "best laptop under £500")
- Research queries where people want to click through to a specific site
- News and time-sensitive information
How ChatGPT Finds and Recommends Businesses
ChatGPT works differently from Google. Rather than indexing and ranking pages, it generates answers based on its training data plus real-time web browsing (in ChatGPT with Browse enabled). When users ask conversational, recommendation-type questions, ChatGPT synthesises information from multiple sources and presents it as a direct answer — often with citations.
How ChatGPT discovers your business:
- Training data: mentions of your business across the web, Wikipedia, directories, press coverage, social media
- Real-time browsing (GPTBot): crawling your website when users ask current questions
- Third-party citations: your business being mentioned in articles, reviews, or industry content
Citation capsule: ChatGPT queries average 23 words versus 4 words for traditional Google searches, with approximately 6-minute session depth. Users are having longer, more conversational interactions. "ChatGPT now refers traffic to tens of thousands of distinct domains." Vercel reports ChatGPT referring 10% of new signups. Source: a16z, 2025.
What ChatGPT is best for:
- Recommendation queries ("what's the best SEO tool for UK small businesses?")
- Comparison questions ("should I use Shopify or WordPress for my UK bakery?")
- Explanation queries ("how do I optimise my site for Google AI Overviews?")
- Research and due diligence ("what should I look for in a UK accountant?")
Why UK Businesses Need to Be Visible on Both
The key insight is that Google and ChatGPT are increasingly used for different parts of the discovery journey. Traditional Google searches are often transactional ("buy X", "X near me"). ChatGPT queries tend to be more exploratory and advisory ("what X should I use?", "help me find a Y for my business").
A business that's well-optimised for Google but invisible to ChatGPT is missing the discovery moment when a potential customer is asking for a recommendation — often the highest-intent query of all.
AI traffic also converts at a meaningfully higher rate. Industry data from 2025 shows AI-referred traffic converting at 4.4x the rate of traditional organic search — because users coming from AI recommendations are typically further along in their decision-making.
How to Optimise for Both Google and ChatGPT
The good news: the fundamentals overlap significantly.
- For both: Fast, technically sound website; clear content that answers questions; structured data (schema markup); consistent business information online
- For Google specifically: Keyword research, backlinks, Google Business Profile, Core Web Vitals
- For ChatGPT specifically: Allow GPTBot in robots.txt; answer-first content structure; brand mentions on third-party sites; entity clarity (clear who you are, what you do, where you operate)
Our Recommendation
Don't treat Google and ChatGPT as competing channels. Optimise for both by building strong technical SEO foundations first (which also support AI crawling), then layer on GEO-specific optimisations: allow AI bots, structure content for AI extraction, add comprehensive schema, and build brand entity mentions across the web.
Frequently Asked Questions
Is ChatGPT taking over from Google for business searches?
ChatGPT has reached 17% of global search queries — significant growth, but Google still handles approximately 80% of searches. The more accurate framing is that ChatGPT is complementing Google for different query types, particularly recommendation and research queries. Both channels are important; neither is going away in the near term.
Can my business appear in ChatGPT answers?
Yes. ChatGPT draws on its training data (web content, business directories, press, Wikipedia) and real-time web browsing to answer questions. Businesses that are mentioned consistently across credible sources, have clear entity signals (who you are, what you do, where), and allow GPTBot to crawl their site have the best chance of being cited or recommended in ChatGPT answers.
How do I know if ChatGPT mentions my business?
You can manually test by asking ChatGPT relevant questions about your industry and location, or use GEO monitoring tools. seoandgeo's audit includes an AI visibility score that assesses how well your site is configured to be cited by AI systems — identifying the specific gaps that prevent citations.
Does Google Search Console tell me about ChatGPT traffic?
No. Google Search Console only tracks traffic from Google's own search products. ChatGPT referral traffic appears in your analytics as direct or referral traffic (from chat.openai.com). Track it separately if you want to measure the growth of AI-referred traffic to your site.
Check Your AI Visibility
Our combined SEO + GEO audit checks your visibility across Google, ChatGPT, Perplexity, and Google AI Overviews — and tells you exactly what to fix.