public bool Call()
        {
            IWebDownloader downloader = new HttpDownloader();

            try
            {
                InvocationTime  = DateTime.Now;
                ResponseContent = new ContentProxy(downloader.GetHtmlContent(Uri).Result);
            }
            catch (Exception exc)
            {
                InnerException = exc;
                return(false);
            }
            return(true);
        }