ns4.serverdata.net has no NS records.
NS records for this zone are defined at serverdata.net.
NS records for this zone are defined at serverdata.net.
Question and response
Question
dig ns4.serverdata.net. NS
Answer
The response has no answer records.
Authority
serverdata.net. 3601 SOA ns2.serverdata.net. hostmaster.serverdata.net. 2026022229 3600 1800 1814400 3601
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0