Bounce rate

The meaning changed when Google replaced Universal Analytics with Google Analytics 4. In the old tool a bounce was a single-page session with no further interaction, even if the visitor read for ten minutes. In GA4 a bounce is a session that did not count as engaged, and bounce rate is simply 100% minus the engagement rate.

Google defines an engaged session as one that lasted longer than 10 seconds (the default, which a site owner can raise), or included a key event, or included two or more page or screen views. A session that meets none of those is a bounce.

How it works

GA4 counts every session and flags it as engaged if any one of the three conditions is met. Bounce rate is the non-engaged sessions divided by all sessions. You can see it per page, per traffic source or per device, although it is not shown in every default report and sometimes has to be added to a report or exploration.

Because the definition depends on time and events, the same visit can be a bounce in one setup and not in another. Raising the engagement timer or adding key events changes the figure without any change in how people behave.

You can check what your own number means in a few minutes. In GA4's admin settings, look at the session timer used for engaged sessions and at which events are marked as key events, because both decide what counts as a bounce. Then look at bounce rate for one page, split by device and by traffic source. A high figure concentrated in one source, such as a single ad campaign, usually points to a mismatch between the promise and the page. A high figure across every source points to the page itself: slow loading, a confusing first screen or content that does not answer the query. Single-page sites and blogs where people read one article and leave will naturally show more bounces.

Example

A restaurant's menu page shows a high bounce rate. On closer inspection most of those sessions come from phones, last under ten seconds and arrive from the Google Business Profile. Visitors are checking opening hours, finding them at the top of the page and leaving to call. The bounce is a success, and nothing needs fixing beyond tracking call clicks as a key event.

The same restaurant then finds a page where the bounce rate genuinely signals a problem: its private events page, reached mostly from a paid search ad. Visitors arrive expecting prices and a booking form, but the page shows only photos and an email address. After adding a short price guide and an enquiry form, more sessions on that page become engaged and event enquiries start arriving through the form.

Why it matters for your business

Bounce rate helps you spot pages that disappoint visitors, such as an ad landing page that does not match the ad, or a page that loads too slowly on mobile. It is a pointer, not a verdict. Pages that answer a quick question well often have high bounce rates, so judge it by the page's purpose and by whether enquiries and sales follow, not as a number to drive down for its own sake.

Common mistakes

• Comparing a GA4 bounce rate with an old Universal Analytics figure, when the two measure different things.
• Treating a high bounce rate as bad on pages built to give a quick answer, such as contact details or opening hours.
• Ignoring that untracked actions, like a phone tap, can make satisfied visitors look like bounces.
• Trying to lower the number with tricks such as forced pop-ups instead of improving the page's speed or relevance.

Questions people ask

What is the difference between bounce rate and engagement rate?

In GA4 they are two sides of the same measure. Engagement rate is the share of sessions that were engaged, and bounce rate is the share that were not, so the two always add up to 100%. Most people find engagement rate easier to read because higher is better.

What is a good bounce rate?

There is no single good figure, because it depends on the page type, the traffic source and how your GA4 property defines engagement. Compare a page with itself over time, and with similar pages on your own site, rather than with generic averages from other businesses.

Does bounce rate affect Google rankings?

Google has said it does not use Google Analytics data, including bounce rate, to rank pages. Many sites do not even use GA4. What matters for search is whether the page satisfies people, and a page that does so may still show a high bounce rate.