alt Hacker NewsIf it's just using Google search "before <x date>" filtering I don't think there's a way to game it... but I guess that depends on whether Google uses the date that it indexed a page versus the date that a page itself declares.
If it's just using Google search "before <x date>" filtering I don't think there's a way to game it... but I guess that depends on whether Google uses the date that it indexed a page versus the date that a page itself declares.
Date displayed in Google Search results is often the self-described date from the document itself. Take a look at this "FOIA + before Jan 1, 1990" search: https://www.google.com/search?q=foia&tbs=cdr:1,cd_max:1/1/19...
None of these documents were actually published on the web by then, incl., a Watergate PDF bearing date of Nov 21, 1974 - almost 20 years before PDF format got released. Of course, WWW itself started in 1991.
Google Search's date filter is useful for finding documents about historical topics, but unreliable for proving when information actually became publicly available online.