iso.egihosting.com has no CNAME records.
Question and response
Question
dig iso.egihosting.com. NS
Answer
The response has no answer records.
Authority
egihosting.com. 132 SOA ns1.egihosting.com. noc.egihosting.com. 2026030401 600 600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0