Find out where shortened URLs lead to without clicking
http://www.17cats.com/newblog/post/d83b0ec4/?dot=0.5763244707494257&tn=dc29028a-f97c-46a0-a8f9-910935cbeb30&date=peKa2y9OeFcdguxW&utm=guang5
http://www.17cats.com/newblog/post/d83b0ec4/?dot=0.5763244707494257&tn=dc29028a-f97c-46a0-a8f9-910935cbeb30&date=peKa2y9OeFcdguxW&utm=guang5