When enabled, the iControlWP will begin collecting basic statistical data from visits to your site.
It will record the following data:
- Number of visits to each page each day (for the previous 30 days)
- Number of visits to each page each month.
It doesn't look like much, but it is in-fact quite a lot of data that it maintains. It will allow you eventually to see your most popular pages on a given day, and on any given calendar month.