What does the term "bounce rate" refer to in web analytics?

The term "bounce rate" in web analytics specifically relates to sessions that contain only one user action. When a user visits a webpage and leaves without interacting further or navigating deeper into the site (for example, by clicking on another link or performing another action), that session is classified as a "bounce." The bounce rate is calculated as the percentage of single-page sessions in relation to the total number of sessions on that site. A high bounce rate can indicate that users are not finding what they expect on a landing page or that the page is not engaging enough to encourage further exploration. Understanding bounce rate helps webmasters and marketers assess user engagement and the effectiveness of their content or design in retaining visitors on the site.