Every tracking tool, be it Google Analytics, etracker, Piwik Pro always show at least one metric in their report displays. Thus, a report always consists of at least one dimension and also at least one metric.

Metrics are also called measurement values and show, how often a certain dimension occurred. Thus, metrics are always either percentage values or absolute numbers.
Within a tracking tool, metrics are usually always next to the dimension.


In web analytics, you need metrics to analyse how often dimensions occur. Examples of metrics and the appropriate dimensions are:

  • Page views – How often was the page (dimension) viewed in a fixed time interval?
  • Clicks – How often did users click on the event (dimension) shopping cart button?
  • Transactions – Which products (dimension) were purchased by the users?
  • Exits – On which page (dimension) did the users frequently exit their session?