srv56.niagahoster.com has no NS records.
NS records for this zone are defined at niagahoster.com.
NS records for this zone are defined at niagahoster.com.
Question and response
Question
dig srv56.niagahoster.com. NS
Answer
The response has no answer records.
Authority
niagahoster.com. 1800 SOA dns1.hostinger.com. dns.cloudflare.com. 2398295639 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0