spf-1a1.ivnosys.net has no NS records.
NS records for this zone are defined at ivnosys.net.
NS records for this zone are defined at ivnosys.net.
Question and response
Question
dig spf-1a1.ivnosys.net. NS
Answer
The response has no answer records.
Authority
ivnosys.net. 21600 SOA ns1.ivnosys.net. sistemas.ivnosys.com. 1773759909 7200 3600 1209600 21600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0