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Convert www. to non www. urls for ASP.Net websites
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Convert www. to non www. urls for ASP.Net websites

Ok, redirecting your www. urls to non www. through IIS is a total pain. Using a url rewriter is a good option - but not always available in shared hosting. Here is a quick method if you have a small ASP.Net site or are using master pages.

Just add this code to the Page_Load sub in the master page, or to every page if you aren’t using master pages.


        If Not IsPostBack Then

            'redirect www. to non www.

            If LCase(Request.Url.AbsoluteUri).StartsWith("http://www.") = True Then

                Response.Status = "301 Moved Permanently"

                Dim sNewLocation As String

                sNewLocation = "http://" & Mid$(Request.Url.AbsoluteUri, 12)

                If LCase(sNewLocation).EndsWith("/default.aspx") Then

                    sNewLocation = Left$(sNewLocation, Len(sNewLocation) - 13)

                End If

                Response.AddHeader("Location", sNewLocation)

                Exit Sub

            End If

        End If

the code removes the www. and does a simple 301 redirect, while preserving case etc in the new url.

Come to think of it, now that Google can follow javascript redirects, you could add this code as a javascript sub to your pages. Anyone want to do a live test on their site? :)


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