Date = Will display performance data for whatever date range you would like to see
Media Buyer = If there are multiple buyers, you can check this tab and see how they are doing
Topic = This section will show every topic that is being ran by your buy team. You can filter by different date ranges as well to gage overall topic performance
Site = If you have multiple sites that is producing revenue, you can check this tab to see the performance of each site
Account = This section functions similar to the site section. You can compare account performance and see which ones are performing the best