Support for IDN TLDs
At present WHMCS can check availability for IDNs on standard TLDs such as ,com, .net and .org.
Please add the ability to also check the availability of Internationalized country code top-level domains, such as:
.香港 (encoded as ".xn--j6w193g"; ".hongkong")
More information is publoished here: https://en.wikipedia.org/wiki/Internationalized_country_code_top-level_domain