public void AddTimedOutUrl(string url)
 {
     if (!TimedOutHosts.Contains(url))
     {
         TimedOutHosts.Add(UrlHelper.GetHostName(url));
     }
 }
 public bool IsTimedOutUrl(string url)
 {
     return(TimedOutHosts.Contains(UrlHelper.GetHostName(url)) && RemoveHostIfTimeout);
 }