When you register a domain with IONOS, its DNS Settings are already configured for use with IONOS applications.
Every domain that you register for the first time with IONOS uses the IONOS name servers. For security reasons, IONOS spreads the name server assignments across multiple name servers. IONOS name servers therefore take the following form:
ZZZ represents a number between 016 and 126.
A/AAAA-Record (IP Address)
Your domain's IP address automatically points to the product contained in the same contract as your domain – in most cases this is your webspace. For example, if you are using your domain with the MyWebsite Creator product, the default IP address is your MyWebsite Creator.