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Starting 2003, Yahoo! starts using its own Yahoo Slurp web crawler to power Yahoo! Search. Yahoo! Search combines the technologies of all Yahoo!'s acquisitions (until 2002, Yahoo! had been using Google to power its search). 2004–05: November (2004) – February (2005) Change in backend providers
Starting on April 7, 2003, Yahoo! Search became its own web crawler-based search engine. [8] They combined the capabilities of search engine companies they had acquired and their prior research into a reinvented crawler called Yahoo!. The new search engine results were included in all of Yahoo's websites that had a web search function.
On November 30, 2008, Microsoft offered to buy Yahoo!'s search business for $20 billion. [72] On July 29, 2009, a 10-year deal was announced giving Microsoft full access to Yahoo!'s search engine to be used in future Microsoft projects in its Bing search engine. [73] Under the deal, Microsoft was not required to pay any cash up front to Yahoo!.
February 19, 2004: Yahoo! drops Google-powered results and launches its own web-crawling algorithm with its own site index. [30] March 1, 2004: Yahoo announces that it will practice paid inclusion for its search service; however, it also announced that it would continue to rely mainly on a free web crawl for most of its search engine content. [30]
WebCrawler was highly successful early on. [15] At one point, it was unusable during peak times due to server overload. [16] It was the second most visited website on the internet in February 1996, but it quickly dropped below rival search engines and directories such as Yahoo!, Infoseek, Lycos, and Excite in 1997.
Dogpile is a metasearch engine for information on the World Wide Web that fetches results from Google, Yahoo!, Yandex, Bing, [2] [3] and other popular search engines, including those from audio and video content providers such as Yahoo!.
The directory was Yahoo!'s first offering and started in 1994 under the name Jerry and David's Guide to the World Wide Web. [1] When Yahoo! changed its main results to crawler-based listings under Yahoo! Search in October 2002, the human-edited directory's significance dropped, but it was still being updated as of August 19, 2014. [2]
Yahoo Search BOSS is a service that allows developers to build search applications based on Yahoo's search technology. [99] Early Partners in the program include Hakia, Me.dium, Delver, Daylife and Yebol. [100] In early 2011, the program switched to a paid model using a cost-per-query model from $0.40 to $0.75 CPM (cost per 1000 BOSS queries).