论坛大佬说的 .ad 不能出售 官方确实有这一条

https://www.domini.ad/en/faqs/

Can .ad domains be used for any purpose?

It is also not permitted to use the .ad domain name for the purpose of trading in domain names for sale, resale or transfer, nor to allow or contribute to a third party doing so.

当年.cy 开放了 虽然没有明说不能出售 但是它的规则要求不能转账注册商 过户需要满足资产或者遗产继承条件

.sa 规则比.ad 严格 除了禁止出售 还必须要当地人或者当地商标