The OpenSearch description document format can be used to describe a search engine so that it can be used by search client applications.
This chart represents OpenSearch web usage trends over a historical time period on a large selection of website homepages queried by BuiltWith. See the FAQ for more information.
We know of 423,867 sites using OpenSearch, download website list.
The usage trends within the top million sites are updated once per week with the last update occurring on 18 May 2012.
For more information about OpenSearch visit http://www.opensearch.org/Home.
OpenSearch is most likely to be found in use on News, Technology or Shopping type websites.
OpenSearch Top Ten Website Industry Distribution in the Top 100,000 Sites
The chart shows the typical type of websites OpenSearch can be found on by distribution. We know of 37
categories that OpenSearch websites can be found on.