This started showing up on our reports as the most blocked URL with hundreds of blocks per day. It's flagged as a Parked Domain within Websense.
I accessed the URL from a laptop not being filtered and the only thing on the home page is a 1x1 image so it seems to not really do anything except maybe be for tracking something?
At first we thought someone might have some malware but once we noticed it's coming from a bunch of people, we aren't sure what to make of it.