using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace DomainTools{ public class WhoisServerResolver { //;WHOIS Servers List //;Maintained by Nir Sofer //;This servers list if freely available for any use and without any restriction. //;For more information: http://www.nirsoft.net/whois_servers_list.html //;Last updated on 09/03/2014 private static Dictionary<string, string> WhoisServerCollection = new Dictionary<string, string>() { {"ac", "whois.nic.ac"}, {"ae", "whois.aeda.net.ae"}, {"aero", "whois.aero"}, {"af", "whois.nic.af"}, {"ag", "whois.nic.ag"}, {"al", "whois.ripe.net"}, {"am", "whois.amnic.net"}, {"as", "whois.nic.as"}, {"asia", "whois.nic.asia"}, {"at", "whois.nic.at"}, {"au", "whois.aunic.net"}, {"ax", "whois.ax"}, {"az", "whois.ripe.net"}, {"ba", "whois.ripe.net"}, {"be", "whois.dns.be"}, {"bg", "whois.register.bg"}, {"bi", "whois.nic.bi"}, {"biz", "whois.neulevel.biz"}, {"bj", "www.nic.bj"}, {"br", "whois.nic.br"}, {"br.com", "whois.centralnic.com"}, {"bt", "whois.netnames.net"}, {"by", "whois.cctld.by"}, {"bz", "whois.belizenic.bz"}, {"ca", "whois.cira.ca"}, {"cat", "whois.cat"}, {"cc", "whois.nic.cc"}, {"cd", "whois.nic.cd"}, {"ch", "whois.nic.ch"}, {"ck", "whois.nic.ck"}, {"cl", "whois.nic.cl"}, {"cn", "whois.cnnic.net.cn"}, {"cn.com", "whois.centralnic.com"}, {"co", "whois.nic.co"}, {"co.nl", "whois.co.nl"}, {"com", "whois.verisign-grs.com"}, {"coop", "whois.nic.coop"}, {"cx", "whois.nic.cx"}, {"cy", "whois.ripe.net"}, {"cz", "whois.nic.cz"}, {"de", "whois.denic.de"}, {"dk", "whois.dk-hostmaster.dk"}, {"dm", "whois.nic.cx"}, {"dz", "whois.nic.dz"}, {"edu", "whois.educause.net"}, {"ee", "whois.tld.ee"}, {"eg", "whois.ripe.net"}, {"es", "whois.nic.es"}, {"eu", "whois.eu"}, {"eu.com", "whois.centralnic.com"}, {"fi", "whois.ficora.fi"}, {"fo", "whois.nic.fo"}, {"fr", "whois.nic.fr"}, {"gb", "whois.ripe.net"}, {"gb.com", "whois.centralnic.com"}, {"gb.net", "whois.centralnic.com"}, {"qc.com", "whois.centralnic.com"}, {"ge", "whois.ripe.net"}, {"gl", "whois.nic.gl"}, {"gm", "whois.ripe.net"}, {"gov", "whois.nic.gov"}, {"gr", "whois.ripe.net"}, {"gs", "whois.nic.gs"}, {"hk", "whois.hknic.net.hk"}, {"hm", "whois.registry.hm"}, {"hn", "whois2.afilias-grs.net"}, {"hr", "whois.dns.hr"}, {"hu", "whois.nic.hu"}, {"hu.com", "whois.centralnic.com"}, {"id", "whois.pandi.or.id"}, {"ie", "whois.domainregistry.ie"}, {"il", "whois.isoc.org.il"}, {"in", "whois.inregistry.net"}, {"info", "whois.afilias.info"}, {"int", "whois.isi.edu"}, {"io", "whois.nic.io"}, {"iq", "vrx.net"}, {"ir", "whois.nic.ir"}, {"is", "whois.isnic.is"}, {"it", "whois.nic.it"}, {"je", "whois.je"}, {"jobs", "jobswhois.verisign-grs.com"}, {"jp", "whois.jprs.jp"}, {"ke", "whois.kenic.or.ke"}, {"kg", "whois.domain.kg"}, {"kr", "whois.nic.or.kr"}, {"la", "whois2.afilias-grs.net"}, {"li", "whois.nic.li"}, {"lt", "whois.domreg.lt"}, {"lu", "whois.restena.lu"}, {"lv", "whois.nic.lv"}, {"ly", "whois.lydomains.com"}, {"ma", "whois.iam.net.ma"}, {"mc", "whois.ripe.net"}, {"md", "whois.nic.md"}, {"me", "whois.nic.me"}, {"mil", "whois.nic.mil"}, {"mk", "whois.ripe.net"}, {"mobi", "whois.dotmobiregistry.net"}, {"ms", "whois.nic.ms"}, {"mt", "whois.ripe.net"}, {"mu", "whois.nic.mu"}, {"mx", "whois.nic.mx"}, {"my", "whois.mynic.net.my"}, {"name", "whois.nic.name"}, {"net", "whois.verisign-grs.com"}, {"nf", "whois.nic.cx"}, {"ng", "whois.nic.net.ng"}, {"nl", "whois.domain-registry.nl"}, {"no", "whois.norid.no"}, {"no.com", "whois.centralnic.com"}, {"nu", "whois.nic.nu"}, {"nz", "whois.srs.net.nz"}, {"org", "whois.pir.org"}, {"pl", "whois.dns.pl"}, {"pr", "whois.nic.pr"}, {"pro", "whois.registrypro.pro"}, {"pt", "whois.dns.pt"}, {"pw", "whois.nic.pw"}, {"ro", "whois.rotld.ro"}, {"ru", "whois.tcinet.ru"}, {"sa", "saudinic.net.sa"}, {"sa.com", "whois.centralnic.com"}, {"sb", "whois.nic.net.sb"}, {"sc", "whois2.afilias-grs.net"}, {"se", "whois.nic-se.se"}, {"se.com", "whois.centralnic.com"}, {"se.net", "whois.centralnic.com"}, {"sg", "whois.nic.net.sg"}, {"sh", "whois.nic.sh"}, {"si", "whois.arnes.si"}, {"sk", "whois.sk-nic.sk"}, {"sm", "whois.nic.sm"}, {"st", "whois.nic.st"}, {"so", "whois.nic.so"}, {"su", "whois.tcinet.ru"}, {"tc", "whois.adamsnames.tc"}, {"tel", "whois.nic.tel"}, {"tf", "whois.nic.tf"}, {"th", "whois.thnic.net"}, {"tj", "whois.nic.tj"}, {"tk", "whois.nic.tk"}, {"tl", "whois.domains.tl"}, {"tm", "whois.nic.tm"}, {"tn", "whois.ati.tn"}, {"to", "whois.tonic.to"}, {"tp", "whois.domains.tl"}, {"tr", "whois.nic.tr"}, {"travel", "whois.nic.travel"}, {"tw", "whois.twnic.net.tw"}, {"tv", "whois.nic.tv"}, {"tz", "whois.tznic.or.tz"}, {"ua", "whois.ua"}, {"uk", "whois.nic.uk"}, {"uk.com", "whois.centralnic.com"}, {"uk.net", "whois.centralnic.com"}, {"ac.uk", "whois.ja.net"}, {"gov.uk", "whois.ja.net"}, {"us", "whois.nic.us"}, {"us.com", "whois.centralnic.com"}, {"uy", "nic.uy"}, {"uy.com", "whois.centralnic.com"}, {"uz", "whois.cctld.uz"}, {"va", "whois.ripe.net"}, {"vc", "whois2.afilias-grs.net"}, {"ve", "whois.nic.ve"}, {"vg", "whois.adamsnames.tc"}, {"ws", "whois.website.ws"}, {"xxx", "whois.nic.xxx"}, {"yu", "whois.ripe.net"}, {"za.com", "whois.centralnic.com"} }; public static string GetWhoisServerName(string domainName) { if (String.IsNullOrWhiteSpace(domainName)) { throw new ArgumentNullException("domainName", "domainName value cannot be a null, empty or whitespace"); } if (domainName.Contains('.') == false) { throw new ArgumentException("domainName", "Not a valid domain name"); } string tld = GetTLDFromDomainName(domainName); if (String.IsNullOrWhiteSpace(tld)) { throw new ArgumentException("domainName", "Not a valid domain name"); } else { tld = tld.Trim(); if (WhoisServerCollection.ContainsKey(tld)) { return WhoisServerCollection[tld]; } } return null; } public static string GetTLDFromDomainName(string domainName) { domainName = domainName.ToLower(); var sortedTldList = GetAvailableTLDNameList().OrderByDescending(t => t.Length).ThenBy(t => t).ToList(); for (int i = 0; i < sortedTldList.Count; i ) { if (domainName.EndsWith("." sortedTldList[i])) return sortedTldList[i]; } return null; } public static IEnumerable<string> GetAvailableTLDNameList() { return WhoisServerCollection.Keys; } }}
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