When registering a domain name with accredited registrars (for example, Hostingru.net), the user guarantees himself the right to use the domain for a certain period of time.
When the domain is registered, then it is sent to the server hosting the site. Attention should be paid to the fact that any changes made by him may require about 72 hours time for them to take effect. While this may seem like a strange fact, ISPs take some time to update their records.
The good news is that you can use your domain along with other available services, for example, with e-mail addresses. The base of your domain is available for creating subdomains (for example, http://subdomain.yourdomain.com), redirect settings. You can order a domain name (or several) and redirect them all to a single site.
It is possible to transfer a domain name, change the provider that serves it, as well as the hosting provider.