ip-194-33-77-20.static.speed-net.com.pl has no CNAME records.
Question and response
Question
dig ip-194-33-77-20.static.speed-net.com.pl. NS
Answer
The response has no answer records.
Authority
static.speed-net.com.pl. 943 SOA ns1.speednet-com.pl. root.speed-net.com.pl. 2018022502 10800 86400 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0