Contents
- GA4's bounce rate is the exact complement of the engagement rate: the two always sum to 100%.
- It no longer measures the same thing as Universal Analytics, where a one-page session was a bounce even after ten minutes of reading.
- GA4 deliberately sidelines it: you have to add it manually in most reports.
Definition
The bounce rate measures the share of non-engaged sessions, that is those reaching none of the three engagement criteria.
Formula
Bounce rate = 100 minus the engagement rate.
Worked example
A blog article showed 78% bounce in Universal Analytics and shows 24% in GA4. Readers' behavior hasn't changed: they read a page for several minutes then leave, which Universal counted as a failure and GA4 counts as engagement.
Orders of magnitude
Comparing a GA4 rate to a Universal rate makes no sense. On GA4, rates of 25 to 45% are common, mechanically lower than the ones people were used to.
The most common mistakes
- Comparing the two tool generations. The gap comes from the definition, not the site.
- Trying to lower the bounce for its own sake. On a page that answers a question, a satisfied visitor leaves: that's a success.
- Tracking it as a primary indicator. GA4 favors the engagement rate, more legible in the same direction as performance.
Where to find the metric
In GA4, the Bounce rate metric, to add manually in reports or in an exploration. It no longer appears by default.
Frequently asked questions
The Adwise team connects Google Ads, Meta Ads, LinkedIn Ads, GA4 and Search Console so agencies and freelancers can run their campaigns from a single place.