Name servers are the servers that assign a specific IP address to each specific domain name that has set those name servers in its DNS settings.
They are responsible for your domain being found under a fixed IP address when the visitor types in the domain name itself, making it easier to find websites by name rather than by a set of numbers. 1&1 IONOS uses its own name servers to automatically assign an IP address for a domain during the registration process at 1&1 IONOS.
By default, all name server settings are pre-configured for your 1&1 IONOS domain. You can configure a website, blog, or online store, and set up the appropriate email mailboxes. You don't have to worry about a thing!
Typical name server entries are:
ZZZ represents a number between 016 and 126.