I think the time spent by a visitor on each web page that they’ve visited could be a useful information on low traffic websites like mine. Currently, we have two pieces of information for each page that is listed in the widget as an icon: 1- the title of the page, and 2- the time at which the page was visited.
Given that there is usually a “next visited page”, the difference between the two visit times provides a “good” (note the marks) indication of the time spent on the page with the older visit time. Not perfect, but an indication.
I had been more articulate in expressing this feature suggestion but it seems that I closed my browser before posting…