An error has occurred. The specified name server is not responsible for this domain.
Nameserver update not possible on Strato.
Nameservers
Greetings,
Thank you for asking.
From the shared screenshot above, I am afraid you’re trying to add a NS type of the DNS record instead of required change of the domain nameservers (which is not the same as NS-record).
The changes you’re trying to make is NS type of the DNS record in Strato interface as per described here:
From the DENIC FAQ - https://www.denic.de/en/faqs/all-faq#code-251:
The domain nameservers have to be changed at domain registrar, which for your domain is DENIC:
