Seu domínio está configurado para usar esses servidores no nível de registrador. Você precisará modificar as configurações do registrador para corresponder às alterações do registro do NS no arquivo de zona.
A resposta abaixo vem dos servidores de nomes de TLDs para .com
, que é o que mais importa aqui.
artofshell.com. 172800 IN NS ns1.crowfoot.arvixe.com.
artofshell.com. 172800 IN NS ns2.crowfoot.arvixe.com.
CK0POJMG874LJREF7EFN8430QVIT8BSM.com. 86400 IN NSEC3 1 1 0 - CK0Q1GIN43N1ARRC9OSM6QPQR81H5M9A NS SOA RRSIG DNSKEY NSEC3PARAM
CK0POJMG874LJREF7EFN8430QVIT8BSM.com. 86400 IN RRSIG NSEC3 8 2 86400 20160412045951 20160405034951 28259 com. tWAc1PvnwRb/p7yhrRofU7WueUorZbqRFbWUeO/QSoWrWsh53IV7BlVc tRBKLi85BdWxR7Xs21n/tlrhoheu8U7QtULUq5vhS6h4iDBISrjasCrG FUQ0J7M+PjCKj1cwFvFuWPpr517pQSMGyYxn1eIiuVcraxVDuq8a0X9x Nss=
GDV43SDF972ESHI2CQH6A4Q335OOOUQO.com. 86400 IN NSEC3 1 1 0 - GDV7BD7GQPNAJSG70HH14BOP2JFTR5CB NS DS RRSIG
GDV43SDF972ESHI2CQH6A4Q335OOOUQO.com. 86400 IN RRSIG NSEC3 8 2 86400 20160414041818 20160407030818 28259 com. RSRlVzpUpsDwNtiroAIu4eoPZt8dCCy3ZN5aWg5FWc5wGDWYVOd5l2P6 2PZ7wcA2B1Y4vQJpyeAhsKea3l3ve1f5OfXuXJDvipOA5NnAgdvTHtem EkeBYpa1a3QwR2zV4xlQtMduvrwxPuy/+1QjzmLAM2jQZBRRcDsLxnVa iNY=
ns1.crowfoot.arvixe.com. 172800 IN A 23.91.70.70
ns2.crowfoot.arvixe.com. 172800 IN A 143.95.251.45
;; Received 612 bytes from 192.55.83.30#53(m.gtld-servers.net) in 224 ms