What are the clkmg.com, clkmr.com and clkfm.com domains?

These three domains are used by ClickMagick to manage tracking links, rotators, and FunnelMagick funnels. More specifically…
 
clkmg.com    is used in the generic tracking links for your account:

http://www.clkmg.com/$username/linkID
 
 
clkmr.com   is used in the generic rotator links for your account:

http://www.clkmr.com/$username/rotatorID
 
 
clkfm.com   is used in the FunnelMagick tracking code which you can find by going to the Settings menu  of any funnel and selecting “Tracking Code”.