Find out where shortened URLs lead to without clicking
http://www.17cats.com/newblog/post/f596129d/?rsc_t=5XzS2YPIHEFUphFd&page=737421&avg=8BMAa9PRG4FDBTDh&utm=guang5
http://www.17cats.com/newblog/post/f596129d/?rsc_t=5XzS2YPIHEFUphFd&page=737421&avg=8BMAa9PRG4FDBTDh&utm=guang5