You can now set up separate Traffic Facts Accounts for each subdomain and aliased domain you have hosted with us. This means you can track your subdomain or aliased domain site separately from the primary account it is under.

This feature does have certain requirements in order to function. Take a look at the following articles for details on how to add Traffic Facts to a subdomain and alias and for the requirements.

Adding Traffic Facts to a Subdomain or Aliased Domain
What are the requirements of adding Traffic Facts to my subdomain or aliased domain?