Why query fan-out changes the visibility problemQuery fan-out expands one question into many sub-queries before composing a single answer.
Visibility is decided across the whole sub-query set, not the one visible question.
Most AI Mode citations come from outside the classic top 10 (Moz, 2026).
Top-10 and AI Overview source overlap fell from 76 percent to 38 percent (Ahrefs, 2026).
When an AI summary appears, people click a traditional result only 8 percent of the time (Pew, 2025).
A brand’s own site is only 5 to 10 percent of what these systems read (McKinsey, 2025).
NeuroRank measures brand presence across the fan-out, per sub-query and per region.
Definition. Query fan-out is the process by which Google AI search rewrites one question into several related sub-queries, retrieves sources for each, and merges them into a single