my.iperweb.com has no NS records.
NS records for this zone are defined at iperweb.com.
NS records for this zone are defined at iperweb.com.
Question and response
Question
dig my.iperweb.com. NS
Answer
The response has no answer records.
Authority
iperweb.com. 300 SOA ns1.prometeus.net. sysadmin.prometeus.com. 1019086135 10800 3600 604800 86400
Additional
. 0 OPT ; payload 2800, xrcode 0, version 0, flags 0