Quick Stats is a tool that's located in the Admin Dashboard that displays the number of views, edits, and photos uploaded to the wikia for the day.
QuickStats is located in the Admin Dashboard on all wikias you have founded or are an admin (sysop) on. Admin Dashboard can be found by clicking on 'Admin' in the universal toolbar at the bottom of your screen.
Once there, you will see Quick Stats on the right side of the page. Clicking on the "See more stats" link will take you to more in-depth Wikia stats.