An individual person browsing your website (technically, a unique browser cookie). Each user can visit your website multiple times, for example, 1 user could create 3 sessions on your website, with each A single visit to your website, consisting of one or more pageviews, along with events, ec containing multiple pageviews. By default, each unique browser cookie will be counted as a separate user which means someone visiting your website on multiple devices (each with their own browser cookie) will mean more than 1 user is reported. The A unique identifier used to combine sessions from a known person on your website. When you feature allows you to track unique individuals that identify themselves on multiple devices.