Issues with non latin characters in domain names

Hello Dev!

I would like to using your plugin in hungarian language environment, where is non latin characters also in alphabet, like ?üó?úéá?í

I tested your plugin with this, and this “special” characters dropped from domain instead of convert to punycode before check and reconvert back when show check result.

Example: ?üó?úéá?í.hu in punycode: xn--1capnvozm59d9i.hu

For punycode convert I used https://www.punycoder.com/

But when I need to send it to registrar API I also must use punycode format, so when it send to Woocommerce, punycoded version also needed.

Is it possible to modify your plugin with this feature?

Kind regards,
Jozsef VER