An Internet infrastructure supports a timed window and version-based historical search service comprising a search server that receives a search string from a client device and a historical data repository from where the historical Internet data is retrieved when searching. A client device has a network browser that accesses a historical data support module that facilitates searching of historical data and displaying the historical Internet data to user. The network browser provides options for inputting a search string, accepting user search preferences, viewing timeline-based historical information, or viewing version-based historical search results. The network browser supports refinement of timeline searches with different historical version access, and vice versa.