Azure App Services

Generally, unless there is a true business reason, you should keep your App Services and supporting resources, such as a database, in the same region. This helps reduce latency and outbound data-transfer charges for cross-region usage.

The following are the best practices for App Services:

• Use App Services' Auto-Healing feature, like recycling when request response is slow.
• Scale up to control the number of users per instance, and scale out to control the load over the user. Scaling out can be controlled through autoscaling; however, autoscale is dependent on the pricing tier.
• Try to create your apps to be stateless to help with scaling.
• If you have GDFR or PII requirements, use App Service Environments and isolate App Services.
• Use Azure Active Directory or Azure B2C to secure your apps.
• Restrict access to need-to-know and least privileges, for both application permissions and resource permissions.

Note

If large media files are present, consider implementing CDN.

The following...