Domain delegation is the process of transferring control over a part of a domain zone to another responsible party. Domain delegation consists in specifying DNS servers for it.
Domain delegation consists in specifying DNS servers for it, which store information about which IP address a particular domain name corresponds to. The DNS server also stores information about previously requested IP addresses, and when accessing the same domain again, it reports its address very quickly, since it stores it in its cache. In practice, this means that NS resource records need to be added for the domain. This procedure is critically important for working with a domain, because without it, DNS servers will not receive information about the existence of your domain.
Due to the peculiarities of the domain name conversion system, after installing DNS servers for a domain, delegation does not occur immediately. The information on the Whois server will change, but the local DNS servers of Internet service providers will accept the changes within 24 hours. After changing DNS servers, the site can work earlier. The maximum time required for domain delegation is 72 hours.
Segmentation is the removal of a domain from the service of the registrar company.
There are standard rules for partitioning. After the domain registration period expires, it is removed from delegation and blocked. If you have not renewed the domain at this stage, it is deleted from the registry.
There are various reasons for the urgent removal of the domain from delegation. The initiative can come from both the domain owner and the registrar. If the owner wants to urgently disconnect all related services and sites from the domain, he needs to set the status UNDELEGATED (statuses may vary depending on the domain zone).
The registrar has the right to remove the domain from delegation forcibly if he receives a complaint about a certain domain.