1. A system for facilitating digital tag prefetching, the system comprising: a computer system comprising physical computer hardware configured to: request a content page from a content site; receive the content page in response to requesting the content page, the content page comprising a first tag embedded therein; load the content page to cause page elements in the content page to be rendered for output on a display; execute the first tag to cause one or more operations with respect to the content page to be performed; and prefetch a second tag related to a subsequent content page not yet requested by the computer system, wherein the computer system is further configured to: request the second tag from a tag server, and cache the second tag for later execution with respect to the subsequent content page and not execute the second tag with respect to the content page.