It's quite clear that many throughout the web are complaining about coinurl. And if I were you, don't put too much attention with them. I've tried their service for awhile but I'm discourage to continue now upon reading a lot of complains with them.
I know that Ad.fly have nothing to do with Bitcoin (at least at this moment), but to be honest it was for me the best service for shorting, and not only for that..
Well they are more legit than coinurl though still they're not with bitcoin but with shrinking link services, they're most popular.