Heads up, we have altered the responses of our DynDNS endpoint. If your scripts depend on it, this will break them!

TLDR: positive responses are prefixed with "OK" and always have a status code of 200, negative responses are prefixed with "NOK" and have a non-200 status code.

See our docs for more information:

https://docs.servfail.network/ddns/#responses

#SERVFAIL
Dynamic DNS - SERVFAIL docs

Documentation of the simple ddns endpoint