Date Check Pro tracks a wide variety of metrics with the goal in mind of making sure that date checking is being done accurately.  If too many items are being checked in an hour, or too many items are discontinued, among a few other metrics, an alert will be flagged for you in your reports dashboard.  You can get to that reports dashboard by clicking the bottom menu bar and Dashboard button as shown below.

The screenshot below shows the ideal, which is that there are no alerts that need to be addressed.

If you see the screenshot above, you are in good shape and do not have any Alerts to worry about.  If you do see an alert or a number, click on the All Alerts icon in the top right corner of that box to view the full report and get more information about what is potentially going wrong.