Quick definition
Zero-click searches resolve on the SERP itself. The user reads the answer and leaves without visiting any source page.
Why zero-click matters
As AI Overviews and answer engines expand, the share of zero-click queries continues to grow. Traditional traffic metrics undercount the influence brands have when their information is what the user actually reads.
What it changes about measurement
Visibility, citation share, and brand recall become more important than session counts. Inclusion in the answer is the real outcome, not the click.