GoDaddy really lived up to its bad reputation and recently changed their API rules. The rules are simple: either you own 10 (or 50) domains, you pay $20/month, or you don’t get the API. I personally didn’t get any communication, and this broke my DDNS setup. I am clearly not the only one judging from what I found online. A company this big gating an API behind such a steep price… So I will repeat what many people said before me (being right): don’t. use. GoDaddy.
ClouDNS
I think I heard of it. I think most DDNS scripts support a lot of registrars as well, if one doesn’t want to go with full DNS hosting.
In case of DNS hosting (I also linked it in the post, but it’s a good shotout), there is desec.io too. EU-hosted, free (although donations are highly encouraged) and has a tons of features! There is also a Terraform provider!
Look at how Dynamic DNS supported. Does it require full access to the account-- dangerous-- by using your login credentials or an API token with full read/write access? Or does it over a very limited scope access that gives the Dynamic DNS tool precisely the access it needs to update a single DNS record-- much safer! The latter is what CloudDNS does.