Question

We have a site that http://www.domain.com for example. If a visitor forgets to put the www on the url request how is the best way to rewrite the URL to http://www.domain.com?

We are using VS 2008 with VB.Net 3.5

Answer 1

You can detect it in your Session_Start event in the Global.asax with the following code:

    Sub Session_Start(ByVal sender As Object, ByVal e As EventArgs)
    ' Fires when the session is started
    If Request.Url.Host.Contains("www.") = False Then
        Session.Abandon()
        Response.Redirect("http://www.domain.com")
    End If

End Sub