fip.j18cloud.com has no NS records.
NS records for this zone are defined at j18cloud.com.
NS records for this zone are defined at j18cloud.com.
Question and response
Question
dig fip.j18cloud.com. NS
Answer
The response has no answer records.
Authority
j18cloud.com. 3601 SOA dns1.registrar-servers.com. hostmaster.registrar-servers.com. 1771523810 43200 3600 604800 3601
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0