Find out where shortened URLs lead to without clicking
http://www.17cats.com/newblog/post/7ebb78f0/?end=wnc6gAO4OaKeLMmS&dot=0.005703851965232265&utm=guang5
http://www.17cats.com/newblog/post/7ebb78f0/?end=wnc6gAO4OaKeLMmS&dot=0.005703851965232265&utm=guang5