HttpRequest.UrlReferrer Property

Gets information about the URL of the client's previous request that linked to the current URL.

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

public Uri UrlReferrer { get; }

Property Value

Type: System.Uri
A Uri object.

ExceptionCondition
UriFormatException

The HTTP Referer request header is malformed and cannot be converted to a Uri object.

The following code example displays the value of two properties of the URL that referred the client to the current application.

Uri MyUrl = Request.UrlReferrer;
 Response.Write("Referrer URL Port: " + Server.HtmlEncode(MyUrl.Port.ToString()) + "<br>");
 Response.Write("Referrer URL Protocol: " + Server.HtmlEncode(MyUrl.Scheme) + "<br>");
   

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1
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