Enabling SubIDs allows you to pass information through your placement tag. You can set up SubIDs to help track where clicks are coming from, and you can add up to 5 of them. SubIDs are often used to give anonymity to a publisher’s domain name, and are used as unique identifiers to represent that domain. Alternatively, SubIDs can also be used to pass any other alphanumeric data.
All placements’ SubID statistics can be viewed inline by clicking the “SubId Stats” icon on the “Publisher Details” page. In order to see SubID stats, the publisher must send you SubID data. You can also filter the data by date and group by SubIDs. The data can be exported by clicking on the “Export” option.