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HttpResponse.RedirectPermanent Method (String)

Performs a permanent redirection from the requested URL to the specified URL.

Namespace:  System.Web
Assembly:  System.Web (in System.Web.dll)

public void RedirectPermanent(
	string url


Type: System.String
The location to redirect the request to.


url is null.


url includes a newline character (\n).

The RedirectPermanent(String) method overload provides a 301 HTTP status code in the response and includes the URL to redirect the request to. A 301 HTTP status code is a standard code in an HTTP response. It indicates that a permanent redirection exists, and it provides the redirection location.

Calling the RedirectPermanent(String) method overload terminates the response.

.NET Framework

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.