private HttpStatusCode GetHttpStatusCode(string url)
        {
            HttpWebResponse httpWebResponse = null;
            HttpStatusCode httpStatusCode;
            var httpWebRequest = (HttpWebRequest)WebRequest.Create(url);
            httpWebRequest.AllowAutoRedirect = false;
 
            try
            {
                httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
                httpStatusCode = httpWebResponse.StatusCode;
            }
            catch (WebException e)
            {
                httpStatusCode = ((HttpWebResponse)e.Response).StatusCode;
            }
            if (httpWebResponse != null) httpWebResponse.Close();
            return httpStatusCode;
        }