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    copied!<p>The following changes allow you to remove these HTTP response headers in Azure <em>without</em> writing a custom HttpModule.</p> <p>Most of the information on the net is out of date, and involves UrlScan (which has since been integrated into IIS7, but with the <code>RemoveServerHeader=1</code> option removed). Below is the neatest solution I've found (thanks to <a href="http://www.davidaiken.com/2011/10/04/hiding-response-headers/" rel="noreferrer">this blog</a>, <a href="https://stackoverflow.com/a/7338448/590558">this answer</a>, and <a href="http://www.bugwriter.me/2010/01/removing-unnecessary-http-header-server.html" rel="noreferrer">this blog</a> combined).</p> <p><s>To remove <strong>Server</strong>, go to Global.asax, find/create the <code>Application_PreSendRequestHeaders</code> event and add the following (thanks to <a href="https://stackoverflow.com/a/7338448/590558">BK</a> and <a href="http://www.bugwriter.me/2010/01/removing-unnecessary-http-header-server.html" rel="noreferrer">this blog</a> this will also not fail on Cassini / local dev):</s></p> <p>Edited April 2014: You can use the PreSendRequestHeaders and PreSendRequestContext events with native IIS modules, but do not use them with managed modules that implement IHttpModule. Setting these properties can cause issues with <a href="http://www.asp.net/aspnet/overview/web-development-best-practices/what-not-to-do-in-aspnet,-and-what-to-do-instead#presend" rel="noreferrer">asynchronous requests</a>. The correct version is to use BeginRequest event.</p> <pre><code> protected void Application_BeginRequest(object sender, EventArgs e) { var application = sender as HttpApplication; if (application != null &amp;&amp; application.Context != null) { application.Context.Response.Headers.Remove("Server"); } } </code></pre> <p>To remove <strong>X-AspNet-Version</strong>, in the web.config find/create <code>&lt;system.web&gt;</code> and add:</p> <pre><code> &lt;system.web&gt; &lt;httpRuntime enableVersionHeader="false" /&gt; ... </code></pre> <p>To remove <strong>X-AspNetMvc-Version</strong>, go to Global.asax, find/create the <code>Application_Start</code> event and add a line as follows:</p> <pre><code> protected void Application_Start() { MvcHandler.DisableMvcResponseHeader = true; } </code></pre> <p>To remove <strong>X-Powered-By</strong>, in the web.config find/create <code>&lt;system.webServer&gt;</code> and add:</p> <pre><code> &lt;system.webServer&gt; &lt;httpProtocol&gt; &lt;customHeaders&gt; &lt;remove name="X-Powered-By" /&gt; &lt;/customHeaders&gt; &lt;/httpProtocol&gt; ... </code></pre>
 

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