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OpenSearch namespace definition

Extension: OpenSearch (A9)

Extension Name: openSearch

Purpose: The OpenSearch namespace allows the users to add information to provide search results via RSS.

Declaration: The namespace for OpenSearch is defined at:
<rss version="2.0"xmlns:openSearch="">

Elements: Elements that appear at the <channel> level are described below:

<openSearch:totalResults> the number of search results available.

<openSearch:startIndex> the index of the first item returned

<openSearch:itemsPerPage> the maximum number of items returned by the search.

Additionally the namespace makes suggestions for existing RSS feeds and their formatting. When using this extension consider these tips for standard RSS feed values.

Channel <title> should contain the name of the search provider additionally it should not contain HTML

Channel <link> should be to an URL that can recreate the search

Channel <description> should contain information describing the search criteria. It can contain HTML

Item <title> should contain the title of the search results and it should not contain HTML.

Item <link> resulting in the content of the search.

Item <description> should contain a description of the search results. It can contain HTML.


<!-- Snipped for Brevity -->
<?xml version="1.0" encoding="UTF-8"?>

<rss xmlns:openSearch ="" version="2.0">

<title>FeedForAll Search</title>
<description>Searching FeedForAll for information </description>
<!--Snipped for Brevity-->