As of March 2017, around 10.78% of all the .ua domains were served via secured HTTPS protocol, with the Let s Encrypt Authority X3 being the most popular SSL certificate. Nginx is the most popular web server, serving 68.97% of the .ua domains, followed by Apache serving 17.75% of the total .ua domains.
To remove the risk of cyber squatting, registration of second-level domains directly below .ua is restricted to owners of registered trade marks, who may register a domain name similar to that of the trade mark in question. However you can register third-level domains beneath some of the following:
com.ua - paid, commercial organizations, one of the most popular
edu.ua - free, available only to proved educational organisations.
gov.ua - free, available only to governmental organizations
net.ua - paid, network service providers
in.ua - paid, domains for individuals
pp.ua - free, domains for individuals
org.ua - paid, other organizations (non-commercial), individuals
There are also second-level domains which are region-specific. These are less popular than the above list (making domain names more available) but they are sometimes restricted to organisations exclusively from within the region.