xen.datof.com has no NS records.
NS records for this zone are defined at datof.com.
NS records for this zone are defined at datof.com.
Question and response
Question
dig xen.datof.com. NS
Answer
The response has no answer records.
Authority
datof.com. 86400 SOA ns1.datof.com. kazsaa.i.kazsaa.hu. 2026013101 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0