Unsupported domains

Unfortunately, our certificate provider for custom domains cannot issue CNAME for the following TLD / ccTLDs:

AF - Afghanistan
BY - Belarus     
CI - Côte d'Ivoire
CU - Cuba
ER - Eritrea      
GN - Guinea     
IR - Iran
IQ - Iraq
LB - Lebanon
LR - Liberia                       
MM - Myanmar
KP - North Korea
PK - Pakistan
RW - Rwanda
SL - Sierra Leone
SY - Syria
SD - Sudan
SS - South Sudan
ZW - Zimbabwe