Main metrics:
Retention 1, 7, 30, 90 days
Churn 1, 7, 30, 90 days It can also be metrics and engagement:
Time on page - you can look at some important pages, for example, time in the news feed
Time on site / Average Session Duration - total time per day or average time per session
Bounce rate - % of visitors who left the site directly from the login page or viewed no more than one page of the site. This metric may not be relevant for everyone, for example, if the entrance starts from the news feed page, it makes no sense to watch it
