Is there a way to know how many pages a visitor has been to?
Yes! Under the Live Visitors tab, you will see a column labeled # Pages. If you don't see this column, it may be hidden. If you're unsure how to show and hide columns, read how.
Once you have the # Pages column showing, you'll see a link with the number of pages the visitor has been to in their session. If you click this link, a panel will open with all of the pages they visited.
When the visitor leaves your website, you can watch their session by clicking the Recordings tab.