Full Answer

Google's I/O 2026 keynote confirmed what click-stream data had already been signaling: AI Mode is no longer an experiment — it is the default desktop search experience. Discovered Labs measured the shift and found that 47.5% of desktop CTR now routes through AI Mode results, a figure that has climbed steadily since the feature moved out of Labs in early 2026.

The attribution problem is structural. AI Mode results render above organic links and carry their own referral parameters, but Google Analytics 4 still groups most of that traffic under generic organic — or, worse, under direct — because the click surface changed faster than the measurement layer adapted. For WooCommerce stores, that means conversion paths that start in AI Mode often credit the wrong channel, inflating direct and deflating organic in acquisition reports.

Server-side tracking closes part of the gap by capturing the raw request headers before JavaScript-based analytics can misclassify them. Pairing a server-side event stream with Google's own Search Console Generative AI report — which now breaks out AI Mode impressions separately — gives store owners a cross-referenced view of how much desktop traffic AI Mode actually drives. Without that pairing, the 47.5% figure remains invisible inside blended organic totals, and budget decisions built on those totals will keep under-investing in the content formats AI Mode favors.