rush.easydns.com has no CNAME records.
Question and response
Question
dig rush.easydns.com. NS
Answer
The response has no answer records.
Authority
easydns.com. 260 SOA dns1.easydns.com. zone.easydns.com. 1771435042 3600 600 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0