datacenter1.ulteh.mx has no NS records.
NS records for this zone are defined at ulteh.mx.
NS records for this zone are defined at ulteh.mx.
Question and response
Question
dig datacenter1.ulteh.mx. NS
Answer
The response has no answer records.
Authority
ulteh.mx. 1800 SOA elmo.ns.cloudflare.com. dns.cloudflare.com. 2398804553 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0