win31.interactivedns.com has no CNAME records.
Question and response
Question
dig win31.interactivedns.com. NS
Answer
The response has no answer records.
Authority
interactivedns.com. 7 SOA primary.interactivedns.com. nettigritty.nettigritty.com. 2026030302 3600 7200 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0