Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.
I understand that you would like to use Azure to host your DNS Domain.
Please note that you cannot purchase/register a domain from/to Azure.
You can only delegate a domain.
This is because, Azure DNS isn't a domain registrar.
This means, the domain will always be registered to the Third party from where you purchased the domain and Name server configuration will be available only from the Third party.
Refer :
This is the case even with Azure App Services.
In the background, App Service Domains use GoDaddy for domain registration and Azure DNS to only host the domains.
Refer : App Service Domains
Kindly let us know if this helps or you need further assistance on this issue.
Thanks,
Kapil
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