
AI search engines: Who holds what market share?
ChatGPT currently dominates website referral traffic generated by AI platforms, accounting for around 75 per cent. However, it would be incorrect to infer from this that ChatGPT also holds around three-quarters of the entire AI or search engine market. This figure refers exclusively to the share of AI referral traffic to websites – not to user numbers, search volume or the overall search market. Measured against total website traffic, this channel remains small but is growing significantly. At the same time, there is a fundamental shift in how users search for information and consume answers. This has direct implications for websites, publishers and SEO and GEO strategies. Anyone wishing to correctly interpret the market shares of AI search tools must therefore clearly distinguish between the traditional search market, platform usage, AI referral traffic and integrated AI search experiences such as Google AI Overviews.




