拒否型･失敗型
1. whois
2. history
#NS 5 la16sal.com {'ns-138.awsdns-17.com.', 'ns-1809.awsdns-34.co.uk.', 'ns1.domtech.org.', 'ns-912.awsdns-50.net.', 'ns-1344.awsdns-40.org.'}
match la16sal.com ns1.domtech.org. ==
RF la16sal.com ns-138.awsdns-17.com.
RF la16sal.com ns-1809.awsdns-34.co.uk.
RF la16sal.com ns-912.awsdns-50.net.
RF la16sal.com ns-1344.awsdns-40.org.