Google search is one of the most commonly used internet services in our daily lives. You can filter down search results by using dorking. The following is a collection of frequent dork strings.

site:

<Search String> site:<Site Domain>
To only show the result from that specific site.

allinurl: / inurl:

site:<Site Domain> allinurl:<string>
site:<Site Domain> inurl:<keyword>
Filter out results whose URL contains the specified characters

intext:

site:<Site Domain> intext:<keyword>
Sort Document with a specifict text in it from a specific site.

intitle:

site:<Site Domain> intitle:<keyword>
Find webpage according to the title.

filetype:

site:<Site Domain> filetype:<keyword>

You can do a whole lot of thing with filetype: but careful.

You can find a whole lot of google dorks here