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// Workers AI · dad joke modeWhat did the Google Programmable Search Engine say? "I've got a query for you.

From Wikipedia, the free encyclopedia

Google Programmable Search
Website type
Web search engine
OwnerGoogle (Alphabet)
CreatorGoogle
RevenueFrom AdWords
Websitecse.google.com
CommercialYes
RegistrationRequired
LaunchedOctober 24, 2006; 19 years ago (2006-10-24) (as Google Co-op)
Current statusActive
Written inC++[1]

Google Programmable Search Engine (formerly known as Google Custom Search and 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.[2]

Services

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Custom Search Engine

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Google Co-op logo

Released on October 23, 2006,[3] Google Custom Search Engine started as a way to let webmasters index and provide search for their own sites.[2] It also let anyone create their own search engine by searching a list of links as well as the sites linked from those sites.[4] This allows custom search engine users to narrow the web that they are searching and have a less cluttered search experience.[2][5] You can also limit the results to only originate from specific countries.[5] The search engine can be integrated into Chrome[6] and Firefox browsers.[7]

From 2014 until 2016, Custom Search Engines were among those found to be vulnerable to a man-in-the-middle attack leading to malware being installed on over 1 million computers.[8]

In 2019, the European Union fined Google for anti-trust violations for not allowing other advertisers to advertise in its custom search engines.[9]

As of January 2026, custom search engines can no longer query more than 50 domains.[10]

Topics

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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.[11][non-primary source needed]

See also

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References

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  1. ↑ "The Anatomy of a Large-Scale Hypertextual Web Search Engine". Computer Science Department, Stanford University, Stanford, CA. Retrieved January 27, 2009.
  2. 1 2 3 Leswing, Kif (November 12, 2013). "Find Exactly What You're Looking for With Google's Custom Search Feature". Wired. ISSN 1059-1028. Retrieved March 23, 2026.
  3. ↑ "The Power of Google Search is Now Customizable". Google News from Google. October 23, 2006. Retrieved August 27, 2015.
  4. ↑ Gilbertson, Scott (June 13, 2007). "Google Custom Search Engine Adds Dynamic Search Capabilities". Wired. ISSN 1059-1028. Retrieved March 23, 2026.
  5. 1 2 Pot, Justin (December 3, 2024). "This Tool Lets You Build Your Own Version of Google". Lifehacker. Retrieved March 23, 2026.
  6. ↑ Wallen, Jack (February 16, 2016). "How to add custom search engines in Chrome for more efficient searching". TechRepublic. Retrieved March 23, 2026.
  7. ↑ "Add custom search engines in Firefox". support.mozilla.org. September 19, 2025. Retrieved March 23, 2026.
  8. ↑ "An HTTPS hijacking click-fraud botnet now infects almost 1M computers". Computerworld. May 16, 2016. Retrieved May 7, 2026.
  9. ↑ Amadeo, Ron (March 20, 2019). "The EU fines Google $1.69 billion for bundling search and advertising". Ars Technica. Retrieved May 7, 2026.
  10. ↑ "Updates to our Web Search Products & Programmable Search Engine Capabilities". January 20, 2026.
  11. ↑ "Custom Search Advanced Topics". Google Help. Archived from the original on September 11, 2014. Retrieved July 31, 2014.
  12. ↑ "Bing Custom Search". Microsoft. Retrieved April 4, 2026.
  13. ↑ Claburn, Thomas (May 10, 2017). "Microsoft is on the edge: Windows, Office? Naah. Let's talk about cloud, AI".
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