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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"> <head>  <script async src="https://www.googletagmanager.com/gtag/js?id=G-J80V1HPMKT"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-J80V1HPMKT'); </script> <title>Trackback Namespace for RSS</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="alternate" type="application/rss+xml" title="RSS Advisory Board" href="http://feeds.rssboard.org/rssboard" /> <link rel="preconnect" href="https://fonts.googleapis.com"> <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin> <link href="https://fonts.googleapis.com/css2?family=Anton&family=Lisu+Bosa:wght@700&display=swap" rel="stylesheet"> <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous"> <style type="text/css" media="screen"> @import url("https://www.rssboard.org/images/stylesheet.css"); </style> <style type="text/css" media="screen"> @import url("https://www.rssboard.org/images/spec-stylesheet.css"); </style> <meta name="robots" content="noodp" /><meta name="description" content="An RSS namespace module that supports trackback pings and trackback messages in RSS feeds." /><link rel="canonical" href="https://www.rssboard.org/trackback" /> </head> <body>   <div class="container page"> <div class="row"> <div class="col col-md-12 banner"> <h1 class="bannerhead"><a href="/">RSS Advisory Board</a></h1> <h2 class="bannersubhead">Really Simple Syndication specifications, tutorials and discussion</h2> </div> </div> <div class="row"> <div class="col col-md-10"> <div align="center"> <p><script type="text/javascript"> </script> <script type="text/javascript" src="//pagead2.googlesyndication.com/pagead/show_ads.js"> </script></p> </div>  <div class="specification"> <h3>Trackback Namespace for RSS</h3> <p class="fineprint">Editor's Note: This is version 1.1 of this document, published Oct. 19, 2006.</p> <h4 id="introduction">1. <a href="#introduction">Introduction</a></h4> <p>The Trackback namespace enables an <a href="http://web.resource.org/rss/1.0/">RSS 1.0</a> or <a href="https://www.rssboard.org/rss-specification">RSS 2.0</a> syndication feed to support <a href="http://www.sixapart.com/pronet/docs/trackback_spec">trackback</a>, a protocol for peer-to-peer communication between web sites that publish related content.</p> <p>In its simplest form, trackback is a means of sending a message that lets a site know you've published a link to one of its pages.</p> <p>The message, which is called a <span class="newterm">trackback ping</span>, conveys three pieces of information from the sender to another site:</p> <ul> <li>I have published a web page about something on your site.</li> <li>Here's a text excerpt of what I have written.</li> <li>Here's a link to the page.</li> </ul> <p>In order to work, both the sender and the receiver must support the trackback protocol. Trackback pings are collected automatically and often presented in a manner similar to visitor comments.</p> <p>The ping must be sent to a <span class="newterm">trackback URL</span>, a script that understands trackback and can do something useful with the information. The trackback URL identifies the page that's being linked on the sender's site.</p> <h4 id="conventions">2. <a href="#conventions">Conventions</a></h4> <p>In this documentation, the key words <span class="rfc2119">may</span>, <span class="rfc2119">must</span>, <span class="rfc2119">must not</span>, <span class="rfc2119">optional</span>, <span class="rfc2119">recommended</span>, <span class="rfc2119">required</span>, <span class="rfc2119">shall</span>, <span class="rfc2119">shall not</span>, <span class="rfc2119">should</span> and <span class="rfc2119">should not</span> are to be interpreted as described in <a href="http://www.ietf.org/rfc/rfc2119.txt">RFC 2119</a>.</p> <h4 id="declaration">3. <a href="#declaration">Declaration</a></h4> <p>The Trackback namespace requires the "http://madskills.com/public/xml/rss/module/trackback/" declaration in the RSS element.</p> <p class="example"><rss xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/"></p> <p>Sample feeds demonstrate how to incorporate elements from this namespace in an <a href="https://www.rssboard.org/files/trackback-namespace-rss-1.xml">RSS 1.0</a> or <a href="https://www.rssboard.org/files/trackback-namespace-rss-2.xml">RSS 2.0</a> feed.</p> <h4 id="element-about">4. <a href="#element-about">trackback:about</a></h4> <p>The <span class="element">about</span> element, when present in an <a href="https://www.rssboard.org/rss-specification#hrelementsOfLtitemgt">item</a>, identifies a trackback URL on another site that was pinged in response to the item (<span class="rfc2119">optional</span>).</p> <p>An RSS 1.0 feed <span class="rfc2119">must</span> define the URL as the value of the element's <span class="attribute">resource</span> attribute in the RDF namespace.</p> <p class="example"><trackback:about rdf:resource="http://ekzemplo.com/tb.cgi?tb_id=180"/></p> <p>An RSS 2.0 feed <span class="rfc2119">must</span> define the URL as the element's value.</p> <p class="example"><trackback:about>http://ekzemplo.com/tb.cgi?tb_id=180</trackback:about></p> <p>An item <span class="rfc2119">may</span> contain more than one <span class="element">about</span> element.</p> <h4 id="element-ping">5. <a href="#element-ping">trackback:ping</a></h4> <p>The <span class="element">ping</span> element, when present in an <a href="https://www.rssboard.org/rss-specification#hrelementsOfLtitemgt">item</a>, identifies the item's trackback URL (<span class="rfc2119">optional</span>).</p> <p>An RSS 1.0 feed <span class="rfc2119">must</span> define the URL as the value of the element's <span class="attribute">resource</span> attribute in the RDF namespace.</p> <p class="example"><trackback:ping rdf:resource="http://dallas.example.com/trackback.php?id=3135"/></p> <p>An RSS 2.0 feed <span class="rfc2119">must</span> define the URL as the element's value.</p> <p class="example"><trackback:ping>http://dallas.example.com/trackback.php?id=3135</trackback:ping></p> <p>An item <span class="rfc2119">must not</span> contain more than one <span class="element">ping</span> element.</p> <h4 id="credits">6. <a href="#credits">Credits</a></h4> <p>The Trackback Namespace for RSS was created by <a href="http://justin.madskills.com">Justin Klubnik</a>, <a href="http://ben.stupidfool.org/">Benjamin Trott</a> and <a href="http://www.sixapart.com/about/corner/">Mena Trott</a>. Comments and corrections regarding this document are encouraged on the <a href="http://groups.yahoo.com/group/rss-public">RSS-Public</a> mailing list.</p> <h4 id="license">7. <a href="#license">License</a></h4> <div class="media cclicense"> <div class="media-left media-middle cclogo"> <p><a href="https://creativecommons.org/licenses/by-sa/2.0/" rel="nofollow"><img class="pull-left" src="https://www.rssboard.org/images/creative-commons-logo.gif" /></a></p> </div> <div class="media-body ccfineprint"> <p>Copyright 2024 <a href="https://www.rssboard.org/">RSS Advisory Board</a>. This document titled Trackback Namespace for RSS is authored by the <a href="https://www.rssboard.org/">RSS Advisory Board</a>, published at the URL <a href="https://www.rssboard.org/trackback">https://www.rssboard.org/trackback</a> and shared under the terms of the Creative Commons <a href="https://creativecommons.org/licenses/by-sa/2.0/" rel="nofollow">Attribution/Share Alike</a> license.</p> </div> </div> </div>  </div> <div class="col col-md-2 sidebar">  <p class="text-center"> <a href="/"><img src="/images/rss-feed-icon-96-by-96.png" width="96" alt="RSS icon" class="img-fluid"></a> </p> <div class="sidebargroup"> <div class="sidebartitle">Main Menu</div> <div class="sidebarlink"><a href="https://www.rssboard.org/">RSS Advisory Board</a></div> <div class="sidebarlink"><a href="https://www.rssboard.org/rss-specification">RSS Specification</a></div> <div class="sidebarlink"><a href="https://www.rssboard.org/rss-profile">RSS Profile</a></div> <div class="sidebarlink"><a 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