Bounce Rate

The share of sessions where a visitor leaves without meaningful engagement; in GA4 it is the percentage of sessions that were not engaged sessions.

By Brandon MinaCEO, BrandPilot AIUpdated November 2026

Short answer

Bounce rate is the share of website sessions in which a visitor leaves without meaningful engagement. In Google Analytics 4 it is the percentage of sessions that were not engaged sessions, meaning they lasted under 10 seconds, had no conversion, and viewed one page. A high bounce rate can signal poor relevance or user experience.