Azure gives you an option to upgrade the gateway to the Web Application Firewall tier. When you select the Upgrade to WAF Tier checkbox, the Azure portal reveals a few extra options (see Figure 4).

Microsoft's Azure Application Gateway is the company's Application Delivery Controller (ADC) Layer-7 network service, which includes SSL termination, load distribution and URL path-based routing ...

Microsoft has announced that the Web Application Firewall (WAF) bot protection feature has reached general availability on Azure on Application Gateway starting this week.