DocuComp is a sophisticated technology that compares inserted, deleted, replaced and moved text and content in Web pages. It's patented algorithm has been specially designed and licensed for use in the Wayback Machine.

You only need to know the basic functions of the Wayback Machine. Begin by typing in a URL to search for into the Wayback Machine and hit the 'Take Me Back' button. Once you've found your choices on the results page, click the 'Compare Archive Pages' button in the upper right hand corner of the page. The reloaded page will have a series of check-boxes before each page date. Check any two dates and select the 'Compare two dates' button in the upper left-hand corner of the screen.