ftth.saitis.net has no NS records.
NS records for this zone are defined at saitis.net.
NS records for this zone are defined at saitis.net.
Question and response
Question
dig ftth.saitis.net. NS
Answer
The response has no answer records.
Authority
saitis.net. 31800 SOA ns1.saitis.net. tech-dns.nimag.net. 2026020903 31800 1800 604800 31800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0