From http://www.w3schools.com (Copyright Refsnes Data)

RSS <channel> Element

The RSS <channel> element describes the RSS feed.

The RSS <channel> Element

Look at the following RSS document:

<?xml version="1.0" encoding="ISO-8859-1" ?>
<rss version="2.0">

<channel>
  <title>W3Schools Home Page</title>
  <link>http://www.w3schools.com</link>
  <description>Free web building tutorials</description>
  <item>
    <title>RSS Tutorial</title>
    <link>http://www.w3schools.com/rss</link>
    <description>New RSS tutorial on W3Schools</description>
  </item>
</channel>

</rss>

As mentioned before, the <channel> element describes the RSS feed, and has three required child elements:

<title> - Defines the title of the channel (e.g. W3Schools Home Page)
<link> - Defines the hyperlink to the channel (e.g. http://www.w3schools.com)
<description> - Describes the channel (e.g. Free web building tutorials)

The <channel> element usually contains one or more <item> elements. Each <item> element defines an article or "story" in the RSS feed.

Furthermore, there are several optional child elements of <channel>. We will explain the most important ones below.

The <category> Element

The <category> child element is used to specify a category for your feed.

The <category> element makes it possible for RSS aggregators to group sites based on category.

The category for the RSS document above could be:

<category>Web development</category>

The <copyright> Element

The <copyright> child element notifies about copyrighted material.

The copyright for the RSS document above could be:

<copyright>2006 Refsnes Data as. All rights reserved.</copyright>

The <image> Element

The <image> child element allows an image to be displayed when aggregators present a feed.

The <image> element has three required child elements:

<url> - Defines the URL to the image
<title> - Defines the text to display if the image could not be shown
<link> - Defines the hyperlink to the website that offers the channel

The image for the RSS document above could be:

<image>
  <url>http://www.w3schools.com/images/logo.gif</url>
  <title>W3Schools.com</title>
  <link>http://www.w3schools.com</link>
</image>

The <language> Element

The <language> child element is used to specify the language used to write your document.

The <language> element makes it possible for RSS aggregators to group sites based on language.

The language for the RSS document above could be:

<language>en-us</language>

RSS <channel> Reference

Element	Description
<category>	Optional. Defines one or more categories for the feed
<cloud>	Optional. Register processes to be notified immediately of updates of the feed
<copyright>	Optional. Notifies about copyrighted material
<description>	Required. Describes the channel
<docs>	Optional. Specifies an URL to the documentation of the format used in the feed
<generator>	Optional. Specifies the program used to generate the feed
<image>	Optional. Allows an image to be displayed when aggregators present a feed
<language>	Optional. Specifies the language the feed is written in
<lastBuildDate>	Optional. Defines the last-modified date of the content of the feed
<link>	Required. Defines the hyperlink to the channel
<managingEditor>	Optional. Defines the e-mail address to the editor of the content of the feed
<pubDate>	Optional. Defines the last publication date for the content of the feed
<rating>	Optional. The PICS rating of the feed
<skipDays>	Optional. Specifies the days where aggregators should skip updating the feed
<skipHours>	Optional. Specifies the hours where aggregators should skip updating the feed
<textInput>	Optional. Specifies a text input field that should be displayed with the feed
<title>	Required. Defines the title of the channel
<ttl>	Optional. Specifies the number of minutes the feed can stay cached before refreshing it from the source
<webMaster>	Optional. Defines the e-mail address to the webmaster of the feed