Visitors - number of unique visitors on your website
Engaged Visitors - number of unique visitors who saw at least one notification
Engagement Ratio - ratio of users who visited your website and saw at least one notification
Impressions - number of times your notifications have been viewed (7 day unique impressions)
Hovers - number of visitors who hovered your notifications (7 day unique hovers)
Clicks - number of visitors who hovered your notifications (7 day unique hovers)
View & Submit Form - number of visitors who saw at least one notification and filled a form
Hover & Submit Form - number of visitors who hovered a notification and filled a form
Click & Submit Form - number of visitors who clicked a notification and filled a form