Question and response
Question
dig ns2.rolbbit.com. NS
Answer
ns2.rolbbit.com. 5 CNAME rolbbit.com.
rolbbit.com. 5 NS ns1.rolbbit.com.
rolbbit.com. 5 NS ns2.rolbbit.com.
Authority
The response has no authority records.
Additional
ns1.rolbbit.com. 5 A 107.150.19.109
ns2.rolbbit.com. 5 A 107.150.19.11
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0