string GetWhois(string webname) { List <string> list = new List <string>(); // whois : http://network-tools.com/default.asp?prog=whois&host=yongfa365.com "utf-8" //http://www.whois-search.com/whois/ "iso-8859-1" // https://www.iwhois.com/whois/yongfa365.com iso-8859-1 string str = Comm.GetHtmlSource("https://www.iwhois.com/whois/" + webname.Trim(), Encoding.GetEncoding("iso-8859-1")); foreach (Match item in Regex.Matches(str, "Name Server:(.{4,})")) { list.Add(item.Groups[1].Value.Trim().ToLower()); } if (list.Count == 0) { return("没找到DNS信息"); } else { return(string.Join(",", list.ToArray())); } }