App Service is a Platform as a Service (PaaS) provided by Azure that allows developers to deploy their web applications without worrying about the underlying infrastructure. By freeing the developers from infrastructure management, the developers can focus on adding features to their applications. Azure provides two tenancy types at two levels regarding your application’s deployment environment: Networking level and Computing level. At the networking level, the network boundary your applications are running in can be shared with other App Service customers (multi tenancy) in an Azure-managed virtual network.