.co.za domain

[Admin]

@Thuthukani

So what would be the recommendation in this case?

Again: please read the article, it answers your question:

@Admin

If the nameserver check is enforced by your domain registrar (the company licensed to issue domain names), you can check with them to see if there is a way to circumvent these checks. Some domain registrars may be able to update your domain’s nameservers anyways. If that’s not possible, you can transfer the domain name to a different domain registrar which doesn’t enforce such checks. For example, NameSilo doesn’t enforce additional nameserver checks.

.com domains do not enforce strict nameserver checks on the registry level. Maybe IONOS does. If so, ask IONOS to fix this, or transfer your domain to a registrar that doesn’t unnecessarily restrict your ability to host your domain with a provider of your choosing.