Apex domains cannot have CNAME records.
Question and response
Question
dig metasite.lt. NS
Answer
metasite.lt. 5 NS srv1.metasite.lt.
metasite.lt. 5 NS ns2.domreg.lt.
metasite.lt. 5 NS ns3.data.lt.
Authority
The response has no authority records.
Additional
ns2.domreg.lt. 5 A 83.171.8.8
srv1.metasite.lt. 5 A 92.61.34.25
ns2.domreg.lt. 5 AAAA 2001:778:0:8:0:0:0:8
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0