Protocols for syndicating search results / From Wikipedia, the free encyclopedia

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OpenSearch is a collection of technologies that allow the publishing of search results in a format suitable for syndication and aggregation. Introduced in 2005, it is a way for websites and search engines to publish search results in a standard and accessible format.

Quick facts: Internet media type, Developed by, ...
Example of a web page which offers to add a new search plugin. With Firefox, the symbol of the currently selected search engine becomes bluish. The user can add the search engine offered by that page by clicking the triangle.
Internet media typeapplication/opensearchdescription+xml
Initial releaseMarch 15, 2005 (2005-03-15)
Latest release
1.1 Draft 6[1]
December 6, 2005; 17 years ago (2005-12-06)
Type of formatWeb syndication
Extended fromRSS
Open format?Creative Commons Attribution-ShareAlike 2.5

OpenSearch was developed by subsidiary A9 and the first version, OpenSearch 1.0, was unveiled by Jeff Bezos at the O'Reilly Emerging Technology Conference on 15 March 2005.[2][3] Draft versions of OpenSearch 1.1 were released during September and December 2005. The OpenSearch specification is licensed by A9 under the Creative Commons Attribution-ShareAlike 2.5 License.[4]