post.forma.sk has no CNAME records.
Question and response
Question
dig post.forma.sk. NS
Answer
The response has no answer records.
Authority
forma.sk. 2946 SOA ns1.forma.sk. root.forma.sk. 2026021605 3600 7200 13102400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0