Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
All is wrong, the kata doesn't won't to extract a domain and also it's not extracted from an URL...
URL: https://developer.mozilla.org/en-US/docs/Learn/Common_questions/Web_mechanics/What_is_a_URL
Domain: contains www., .co.jp, blog. all not only google from www.google.co.jp