dns.scdingtai.com has no NS records.
NS records for this zone are defined at scdingtai.com.
NS records for this zone are defined at scdingtai.com.
Question and response
Question
dig dns.scdingtai.com. NS
Answer
The response has no answer records.
Authority
scdingtai.com. 3600 SOA dns.scdingtai.com. hostmaster.scdingtai.com. 1581838864 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0