Find out where shortened URLs lead to without clicking
http://www.17cats.com/newblog/tags/%E6%A1%82%E7%BA%B6/?tn=1661784149&tc=IbpvtgNPCypdPiC5&utm=guang5
http://www.17cats.com/newblog/tags/%E6%A1%82%E7%BA%B6/?tn=1661784149&tc=IbpvtgNPCypdPiC5&utm=guang5