RSS enclosure

<p>RSS enclosures are a way of attaching <a href="/facts/Multimedia/PtJteq27">multimedia</a> content to <a href="/facts/RSS_(file_format)/WBAWrkdj">RSS</a> <a href="/facts/Web_feed/reBfT1GS">feeds</a> with the purpose of allowing that content to be <a href="/facts/Link_prefetching/Mfdpx7UJ">prefetched</a>. Enclosures provide the <a href="/facts/Uniform_Resource_Locator/pPD5g7Wq">URL</a> of a file associated with an entry, such as an <a href="/facts/MP3/yrBpxUSD">MP3</a> file to a music recommendation or a photo to a diary entry. Unlike <a href="/facts/E-mail_attachment/RIDQoxds">e-mail attachments</a>, enclosures are merely <a href="/facts/Hyperlink/LqNsa84e">hyperlinks</a> to files.  The actual file data is not <a href="/facts/Compound_document/QSMh7jUp">embedded</a> into the feed (unless a <a href="/facts/Data_URL/7hBR45J2">data URL</a> is used). Support and implementation among <a href="/facts/Feed_aggregator/nzy1zPes">aggregators</a> varies: if the software understands the specified <a href="/facts/File_format/qrXbwJaH">file format</a>, it may automatically <a href="/facts/Download/qN7fWmyI">download</a> and display the content, otherwise provide a link to it or silently ignore it.
</p><p>The addition of enclosures to RSS, as first implemented by <a href="/facts/Dave_Winer/HGEn6245">Dave Winer</a> in late 2000 <a href="http://backend.userland.com/rss092">[1]</a>, was an important prerequisite for the emergence of <a href="/facts/Podcast/arkeh0YV">podcasting</a>, perhaps the most common use of the feature as of 2012<a href="https://en.wikipedia.org/w/index.php?title=RSS_enclosure&action=edit">[update]</a>. In podcasts and related technologies enclosures are not merely attachments to entries, but provide the main content of a feed.
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RSS enclosure open-in-new

RSS enclosure