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Given that .de domains have issues with settings nameservers before the domain is set up, I assume that you added your domain using CNAME validation?

If so, please note that setting up the CNAME only validates your domain name for use on our hosting. It doesn’t actually make your website use our hosting. You’ll have to configure that separately after adding the domain name.

The easiest way to do so is to point your domain name to our nameservers. Please see this article for more information on how to set this up: