Google Analytics 4
Google's event-based analytics platform, which replaced Universal Analytics in July 2023 and models sessions and users from event streams.
AnalyticsEngaged sessions
Engagement rate
The share of sessions that lasted over ten seconds, had a conversion event, or included at least two pageviews — GA4's replacement for bounce rate.
In full
Bounce rate in GA4 is simply the inverse of engagement rate, not the Universal Analytics metric of the same name, so historical comparisons are invalid. Engagement thresholds are configurable. As an SEO metric it is a weak proxy at best: Google has consistently said it does not use analytics data in ranking, and engagement varies by content type and intent far more than by quality.
Example
A reference page with a 20% engagement rate performs exactly as intended — users get an answer in five seconds and leave.
Related terms
Sessions
A group of user interactions within a time frame; in GA4 a session begins with a session_start event and ends after 30 minutes of…
Conversion rate
The proportion of sessions or users that complete a defined goal, such as a purchase, lead form submission or sign-up.
Attribution
Assigning credit for a conversion across the touchpoints that preceded it, using rules such as last click, first click, or data-driven…
Search intent
The underlying goal behind a query — typically classified as informational, navigational, commercial investigation or transactional.