Microsoft Learn¶

• Application Insights overview: what it is, supported platforms, and the main experiences.
• Application Insights telemetry data model: requests, dependencies, exceptions, traces, events, metrics and how they correlate.
• Usage analysis with Application Insights: users, sessions, funnels, cohorts, retention and user flows.
• Connection strings in Application Insights: format, regional endpoints, and why they replace instrumentation keys.
• Enable Azure Monitor OpenTelemetry: the recommended instrumentation path for .NET, Java, Node.js and Python.
• Application Insights availability tests: standard tests and custom TrackAvailability() tests.
• Transition to using standard tests by 30 September 2026: retirement notice for URL ping tests.

Third-party guides¶

• Azure Application Insights: guide to setup and best practices (Adex)

See also¶

• Azure Monitor overview
• Instrumentation key, connection string and workspace