Find out where shortened URLs lead to without clicking
http://www.17cats.com/newblog/post/c935605b/?tc=cwgkrgWfiVOPHluO×tamp=0.24960578174758874&aim=DRNK0H43UkCXmWMq&utm=guang5
http://www.17cats.com/newblog/post/c935605b/?tc=cwgkrgWfiVOPHluO×tamp=0.24960578174758874&aim=DRNK0H43UkCXmWMq&utm=guang5