Dim url As Uri = New Uri(TextBox1.Text)
 
            If url.HostNameType = UriHostNameType.Dns Then
                ' Get the URL of the favicon
                ' url.Host will return such string as www.google.com
                Dim iconURL = "http://" & url.Host & "/favicon.ico"
                ' Download the favicon
                Dim request As System.Net.WebRequest = System.Net.HttpWebRequest.Create(iconURL)
                Dim response As System.Net.HttpWebResponse = request.GetResponse()
                Dim stream As System.IO.Stream = response.GetResponseStream()
                Dim favicon = Image.FromStream(stream)
                ' Display the favicon on PictureBox1
                PictureBox1.Image = favicon
            End If