Visitor duration (sometimes referred to as session duration) measures the length of time a user spends on a website during a single session.
A session is a period a user spends actively engaged with a website. A session ends when they leave the site or when their activity on the site stops (for example, if they leave their browser inactive for an extended period).
Visitor duration is calculated by dividing the total duration of all sessions by the number of sessions. This provides an average measure of the length of time that users spend on a website during a given period.
Visitor duration tells you how engaged visitors are with your website. A high visitor duration indicates that users find the website valuable and engaging, while a low visitor duration may indicate that users are not finding what they are looking for or are encountering problems on your site.
Visitor duration can help you identify pages that may be causing users to leave and take action to improve the user experience and increase engagement, such as improving the navigation and content of the site or making the site more mobile-friendly.