site: allows you to narrow your search by either a site or a top-level domain. AltaVista, for example, has two syntaxes for this function (host: and domain:), but Google has only the one.

site:loc.gov
site:thomas.loc.gov
site:edu
site:nc.us

link:returns a list of pages linking to the specified URL. Enter link:www.google.com and you’ll be returned a list of pages that link to Google. Don’t worry about including the http:// bit; you don’t need it, and, indeed, Google appears to ignore it even if you do put it in. link: works just as well with “deep” URLs—http://www.raelity.org/apps/blosxom/ for instance—as with top-level URLs such as raelity.org.

cache:finds a copy of the page that Google indexed even if that page is no longer available at its original URL or has since changed its content completely. This is particularly useful for pages that change often.

If Google returns a result that appears to have little to do with your query, you’re almost sure to find what you’re looking for in the latest cached version of the page at Google.

cache:www.yahoo.com

daterange:limits your search to a particular date or range of dates that a page was indexed. It’s important to note that the search is not limited to when a page was created, but when it was indexed by Google. So a page created on February 2 and not indexed by Google until April 11 could be found with daterange: search on April 11. Remember also that Google reindexes pages. Whether the date range changes depends on whether the page content changed. For example, Google indexes a page on June 1. Google reindexes the page on August 13, but the page content hasn’t changed. The date for the purpose of searching with daterange: is still June 1.

Note that daterange: works with Julian [Hack #12], not Gregorian dates (the calendar we use every day.) There are Gregorian/Julian converters online, but if you want to search Google without all that nonsense, use the FaganFinder Google interface (http://www.faganfinder.com/engines/google.shtml), offering daterange: searching via a Gregorian date pull-down menu. Some of the hacks deal with daterange: searching without headaches, so you’ll see this popping up again and again in the book.

“George Bush” daterange:2452389-2452389
neurosurgery daterange:2452389-2452389

Tags: advance google search, Google Hacks Part II, google search operators, tricks & tips