Google Operating System reveals a way to expand your date specific search beyond what Google has available on Google’s advanced search page.

The date feature gives you a pull down to choose past day, week, month, 2 months, 3 months, 6 months or 12 months. But what if you want to see the past 3 days or the past 10 days?

As you can see by the URL string for the past day, it adds the =d parameter to the URL. So a search for new indexed pages by Google for my site would use this URL: http://www.google.com/search?q=site:seroundtable.com&as_qdr=d. To modify that to 3 days, you add a 3 after the “d.” For example, you would search for http://www.google.com/search?q=site:seroundtable.com&as_qdr=d3.

You can see that Google adds “past 3 days” to the search bar, after adding that parameter.

Ionut explains in his post the following parameters all work:

d[number] – past number of days (e.g.: d10) w[number] – past number of weeks y[number] – past number of years

These features are very useful for searchers and webmasters.

Related Topics: Google: Web Search

About The Author: Barry Schwartz is Search Engine Land's News Editor and owns RustyBrick, a NY based web consulting firm. He also runs Search Engine Roundtable, a popular search blog on very advanced SEM topics. Barry's personal blog is named Cartoon Barry and he can be followed on Twitter here. For more background information on Barry, see his full bio over here. See more articles by Barry Schwartz