Do you add Web Tests to Application Insights to monitor trends over time?

As soon as you have configured Application Insights, you should immediately add a Web Test to track general performance trends over time. You can configure test agents to access your application from different locations around the globe to give a general idea of what users will experience. Instructions on how to add Web Tests can be found on [Microsoft Learn - Application Insights availability tests (https://learn.microsoft.com/en-us/azure/azure-monitor/app/availability?tabs=standard).

Setting up a Web Test will allow you to query and see how the performance of your application has changed over a period of time and to help you spot any anomalies. It can be useful to query over a long period of time (e.g. a year) and see if the performance has stayed the same or if there have been any regressions in responsiveness.

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You have the ability to drill down into web test results, to get an overview of the response time of the resources on a page. This can help discover if certain resources are slowing the response time.

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