www.iberlayer.com has no CNAME records.
Question and response
Question
dig www.iberlayer.com. NS
Answer
The response has no answer records.
Authority
iberlayer.com. 209 SOA dismonia.iberlayer.com. admin.iberlayer.com. 2026020301 43200 300 864000 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0