data4.web.az has no CNAME records.
Question and response
Question
dig data4.web.az. NS
Answer
The response has no answer records.
Authority
web.az. 714 SOA ns2.host.az. postmaster.intrans.baku.az. 2022072206 86400 900 2592000 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0