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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.
However, it is not a true Web crawler search engine. New search engine: Search.ch is launched. It is a search engine and web portal for Switzerland. [22] New web directory: LookSmart is released. It competes with Yahoo! as a web directory, and the competition makes both directories more inclusive. December: Web search engine supporting natural ...
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!.
The first table lists the company behind the engine, volume and ad support and identifies the nature of the software being used as free software or proprietary software. The second and third table lists internet privacy aspects along with other technical parameters, such as whether the engine provides personalization (alternatively viewed as a ...
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]
AltaVista was a web search engine established in 1995. It became one of the most-used early search engines, but lost ground to Google and was purchased by Yahoo! in 2003, which retained the brand, but based all AltaVista searches on its own search engine.
Grub was an open source distributed search crawler that Wikia Search used to crawl the web. Heritrix is the Internet Archive's archival-quality crawler, designed for archiving periodic snapshots of a large portion of the Web. It was written in Java. ht://Dig includes a Web crawler in its indexing engine.
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]
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