mta.annexweb.com has no NS records.
NS records for this zone are defined at annexweb.com.
NS records for this zone are defined at annexweb.com.
Question and response
Question
dig mta.annexweb.com. NS
Answer
The response has no answer records.
Authority
annexweb.com. 300 SOA ns-cloud-d1.googledomains.com. cloud-dns-hostmaster.google.com. 2021091401 21600 3600 259200 300
Additional
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0