e18a05ce.21.ik2.com has no CNAME records.
Question and response
Question
dig e18a05ce.21.ik2.com. NS
Answer
The response has no answer records.
Authority
ik2.com. 9226 SOA ns1.ik2.com. dns.ik2.com. 2026022701 14400 3600 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0