moodle.vps.wbsprt.com has no CNAME records.
Question and response
Question
dig moodle.vps.wbsprt.com. NS
Answer
The response has no answer records.
Authority
wbsprt.com. 851 SOA ns1.websupport.sk. admin.websupport.sk. 1772809821 7200 2048 1048576 2560
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0