How GA4 defines it
Google Analytics Help gives three linked definitions. We read them on 9 October 2026.
- Engaged session: a visit that lasts longer than 10 seconds, has a key event, or has two or more screen or page views. A key event is an action you have marked as important, such as a form sent.
- Engagement rate: the percentage of sessions that were engaged.
- Bounce rate: the percentage of sessions that were not engaged.
So bounce rate and engagement rate always add up to 100%. A site with a 40% bounce rate has a 60% engagement rate.
See GA4 for more on how it measures visits. Compare GA4 numbers with GA4 numbers only.
A made-up example
A sweet shop's website gets 1,000 sessions in a month. Of these, 400 were not engaged. The bounce rate is 40% and the engagement rate is 60%.
Now think about one visitor. She opens the contact page, sees the phone number, and calls the shop in 6 seconds. She viewed only one page and stayed under 10 seconds. If the phone tap is not set up as a key event, GA4 counts her as a bounce, even though she did what the shop wanted. That is why you should set up key events for calls, WhatsApp taps and forms.
What is a good bounce rate?
There is no fixed number. A blog page and a contact page will behave differently, and so will a phone visitor and a desktop one. Compare a page with its own past months, and compare similar pages with each other.
Is bounce rate a ranking factor?
Do not assume so. Google's guide to its ranking systems, read on 9 October 2026, does not list user engagement measures as ranking factors. Use bounce rate to see which pages need work, not as a ranking score.
Common mistakes
- Treating every high bounce rate as a problem. A page that answers a question quickly may do its job.
- Not setting up key events, so good visits are counted as bounces.
- Comparing GA4 numbers with numbers from another tool, which may follow a different rule.
- Looking at the whole site as one number. Look at one page type at a time.
- Fixing the number by adding pop-ups or extra clicks. That changes the report, not the visitor.
Related terms
- GA4 (Google Analytics 4): Google's tool for measuring website and app visits.
- Dwell time: how long someone stays after a search click before going back.
- Conversion rate: the share of visitors who buy, call or fill a form.
- Search intent: what the person wants when they type a search.
- Core Web Vitals: Google's measures of how fast and steady a page feels.
For more, read the impact of bounce rate on SEO and why to stop chasing vanity metrics in GA4. For help with tracking, see our analytics and tracking work.
Sources
- Google Analytics Help, "Engagement rate and bounce rate" (support.google.com/analytics/answer/12195621), read 9 October 2026.
- Google Search Central, "A guide to Google Search ranking systems" (developers.google.com/search/docs/appearance/ranking-systems-guide), read 9 October 2026.
