1. A system for presenting versions of web pages, the system comprising: a network computing provider in communication with a client computing device, the network computing provider comprising a network computing component executing on one or more physical network computing devices, wherein each physical network computing device comprises hardware configurable to execute specific computing instructions, the network computing component configured to: determine at least one difference between a first version of a web page and a second version of a web page, wherein the first version and second version of the web page comprise different versions of the web page as retrieved from a content provider in response to different browse session requests for the web page from a client computing device, and wherein the first version of the web page was accessed at a different time than the second version of the web page; cause display of a first object, the first object representing the first version of the web page; cause display of a second object at least partially obscured by display of the first object, the second object representing the second version of the web page; and cause display of an interactive timeline, wherein display of the first object representing the first version of the web page is at least partially replaced by display of the second object in response to a user interaction with the interactive timeline, and wherein at least one of the first object or the second object comprises a visual indicator of the at least one difference between the first version of the web page and the second version of the web page.