How to strip source name using Regex?

Question

JavaScript

I need to strip the source name from the url, there could be things like this:

https://domen.site.ru/podsait/03285926/#2412747495
http://www.site.ru/site/24722305
https://www.domen.site.ru/site/rss
https://www.поддомен.сайт.рф/
site.ru

You need to cut out only "site" or if in Cyrillic, then "site".
How can this be done with a single regex line?

Answer 1

str.match(/[^.]+(?=\.[^.]+(\/|$))/)[0]