Full Answer

AI engines — ChatGPT, Gemini, Perplexity, Claude — are sending a measurable and fast-growing share of traffic to websites. The 393% year-over-year growth in Q1 2026 is not evenly distributed: sites that publish structured, citable content (clear answers, sourced claims, schema markup) capture disproportionately more of it. Sites that don't are largely invisible to these engines.

The conversion quality is the number worth watching. AI-referred visitors arrive with high intent — they asked a specific question, received a specific recommendation, and clicked through. That explains the 4–23x conversion premium over organic search, where intent is broader and the visitor may still be browsing. For WooCommerce stores, this means AI traffic is not a curiosity metric — it is [disproportionately valuable revenue](https://www.aimerce.ai/blogs/does-server-side-tracking-bypass-ad-blockers-and-privacy-restrictions).

The measurement problem is serious. Most AI platforms do not send a standard HTTP referrer, so GA4 buckets the visit as Direct. Without server-side tracking that inspects the full request — or UTM parameters carried through from AI-surfaced links — stores cannot separate AI traffic from genuine direct visits. That means the channel producing your highest-converting visitors is the one you [cannot see in your reports](https://seresa.io/blog/data-loss/912-million-ad-blockers-are-hiding-a-third-of-your-woocommerce-traffic). Fixing this starts with first-party tracking infrastructure that captures what the browser does not pass.