ntppool-dns.zeus.frumentum.media has no NS records.
NS records for this zone are defined at frumentum.media.
NS records for this zone are defined at frumentum.media.
Question and response
Question
dig ntppool-dns.zeus.frumentum.media. NS
Answer
The response has no answer records.
Authority
frumentum.media. 1800 SOA aitana.ns.cloudflare.com. dns.cloudflare.com. 2398302202 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0