Greetings,
To host your domain in Azure DNS, you need to create DNS zone for that domain name (ex: JPAzure.com) along with DNS record set. So, you should create 'A' record to resolve a host name to an IPv4 address and then configure the Azure DNS name servers at a domain name registrar so that anyone on the Internet will be able to resolve the host name to connect to your web server or app.
Here is an article explaining domain hosting in Azure DNS.
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Best regards,
Subhash