Google Custom Search (formerly known as Google Co-op) is a platform provided by Google that allows web developers to feature specialized information in web searches, refine and categorize queries and create customized search engines, based on Google Search. The service allows users to narrow the 11.5 billion indexed webpages down to a topical group of pages relevant to the creator's needs.[3] Google launched the service on October 23, 2006.[4]


The Google Custom Search platform consists of three services:

Custom Search Engine

Google Co-op logo

Released on October 23, 2006, Google Custom Search allows anyone to create their own search engine by themselves. Search engines can be created to search for information on particular topics chosen by the creator. Google Custom Search Engine allows creators to select what websites will be used to search for information which helps to eliminate any unwanted websites or information. Creators can also attach their custom search engine to any blog or webpage.[5] Google AdSense results can also be triggered from certain search queries, which would generate revenue for the site owner.[6]

Subscribed Links

Provided as part of the original service, subscribed links were discontinued on 15 September 2011.[7]

Subscribed Links were web results that users could manually subscribe to. Anyone was allowed to make a new Subscribed Link, and did not necessarily need knowledge on how to create a feed, as a basic link could be created. Subscriptions were then available in a special directory.


Topics are specific areas of search, which can be developed by people with knowledge of a certain subject. These topics are then displayed at the top of relevant Google web searches, so the user can refine the searches to what they want.[8] Currently, there is a limited number of topics that Google is wanting to develop, namely Health, Destination Guides, Autos, Computer games, Photography and Home Theater.[citation needed]

One of the topics with many contributions is Health.[citation needed] They include the National Library of Medicine, Centers for Disease Control and Prevention, Health On the Net Foundation, Harvard Medical School, Mayo Clinic and others.[citation needed]

Google CSE's may offer better topical search results than the standard Google search.[citation needed]


Google announced that they would Discontinue their service on April 1, 2017 and Completely shut down on April 1, 2018.[citation needed]

See also


  1. ^ "Google.com Site Info". Alexa Internet. Retrieved September 11, 2012. 
  2. ^ "The Anatomy of a Large-Scale Hypertextual Web Search Engine". Computer Science Department, Stanford University, Stanford, CA. Retrieved January 27, 2009. 
  3. ^ Signorini, A; Gulli, A. "The Indexable Web is More than 11.5 billion pages" (PDF). Retrieved 31 July 2014. 
  4. ^ "The Power of Google Search is Now Customizable". Google News. Retrieved 27 August 2015. 
  5. ^ "Google Custom Search". Wordpress. Retrieved 31 July 2014. 
  6. ^ "AdSense Custom Search Ads". Google. Retrieved 31 July 2014. 
  7. ^ Eustace, Alan (2011-09-02). "Official Blog: A fall spring-clean". Googleblog.blogspot.com. Retrieved 2013-06-14. 
  8. ^ "Custom Search Advanced Topics". Google. Retrieved 31 July 2014. 

External links