Examples of such tools are:
-slack.com
-bitrix24
-Dropbox business
-Monday.com
-Trello
-Samepage
-G suite
Github.com and related sites can be seen as collaboration tools for developers.
It is typical for such pages that the user receives a subpage in the form "portal.com/user" or "user.portal.com". Some collaboration tools offer to create websites or news for the public.
These pages then have a URL such as www.portal/user/news.html.
Customers and/or employees of many companies either use these colloboration tools available on the market, e.g. slack.com or special collaboration tools from your own company. Customers and/or employees have to remember long URLs such as www.tool.com / ...
For such cases, Google now offers the new domains as a solution. You register a new domain such as employee.new or workgroup.new and redirects the new domain to tool.com/user244/index.html.
To strive for a high ranking in search engines for such a page is lost love effort. The rule will be that search engines don't list such pages at all.
It is advisable to register your own new domain for the bottom of the portals and then redirect to the bottom.
This increases the chances of the entire content also appearing in search engines.
The new domain is a secure namespace, which means that https is required for all websites under .new. You can also buy a new domain and park the new domain, but it only works in a browser with SSL encryption.
The new domain is - as Google explains - a "top-level domain that is HSTS-preloaded. The HSTS preload list is a list of websites which modern browsers will only load over an encrypted connection".
The uncomplicated creation of a secure namespace through .new is the reason why the new domain is useful for such teamwork projects - more than other domain endings. When working on projects, confidential information is often used and it is advisable to protect it using SSL encryption.
Hans-Peter Oswald
http://www.domainregistry.de/... (English)
http://www.domainregistry.de/... (German)