App Service Domain

https://catalogartifact.azureedge.net/publicartifacts/Microsoft.Domain-2.0.3/Large.png

App Service Domain allows you to Purchase and manage a custom domain from within the Azure portal.

Simplified domain life cycle management
Purchase and manage domains for your Azure Services (supported TLDs: com, net, co.uk, org, nl, in, biz, org.uk, and co.in)
Subdomain management and assignment
Auto renew capabilities
'Privacy Protection' included for free (except for TLDs who's registry do not support Privacy. For example: co.in, co.uk, etc.)
Free cancellation within first five days
Simplified DNS management using Azure DNS
Ability to 'Transfer in' your domain to Azure (coming soon)