sauer.cursionals.com has no NS records.
NS records for this zone are defined at cursionals.com.
NS records for this zone are defined at cursionals.com.
Question and response
Question
dig sauer.cursionals.com. NS
Answer
The response has no answer records.
Authority
cursionals.com. 3601 SOA dns1.registrar-servers.com. hostmaster.registrar-servers.com. 1773065843 43200 3600 604800 3601
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0