Other protection solutions

Azure, in addition, provides the following two services that provide critical application-delivery protection and security:

• Azure Application Gateway provides a secure way of load balancing to service endpoints such as VMs and can be used for SSL termination, also called SSL offloading. Azure Application Gateway also provides web application firewall (WAF) capabilities to protect internet-facing web applications from application-layer attacks (L7); distribution of traffic is to endpoints within a region only.
• The Azure Front Door service provides an application delivery network (ADN) service. It also provides layer 7 (application layer) load balancing, WAF, and content acceleration capabilities for applications; however, it operates at the geographic layer and is not regional.

While both Front Door and Application Gateway are layer 7 (HTTP/HTTPS) load balancers, the primary difference is that Front Door is a global app delivery service...