Question and response
Question
dig ns1.dujiangyanren.com. NS
Answer
ns1.dujiangyanren.com. 5 CNAME dujiangyanren.com.
dujiangyanren.com. 5 NS ns-604.awsdns-11.net.
dujiangyanren.com. 5 NS ns-1347.awsdns-40.org.
dujiangyanren.com. 5 NS ns-1987.awsdns-56.co.uk.
dujiangyanren.com. 5 NS ns-81.awsdns-10.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0