# Instrumentation | Sentry for ASP.NET Core

* #### [Automatic Instrumentation](https://docs.sentry.io/platforms/dotnet/guides/aspnetcore/tracing/instrumentation/automatic-instrumentation.md)

  Learn what transactions are captured after tracing is enabled.

* #### [Custom Instrumentation](https://docs.sentry.io/platforms/dotnet/guides/aspnetcore/tracing/instrumentation/custom-instrumentation.md)

  Learn how to capture performance data on any action in your app.

* #### [OpenTelemetry Support](https://docs.sentry.io/platforms/dotnet/guides/aspnetcore/tracing/instrumentation/opentelemetry.md)

  Using OpenTelemetry with Sentry Performance.

* #### [Performance Metrics](https://docs.sentry.io/platforms/dotnet/guides/aspnetcore/tracing/instrumentation/performance-metrics.md)

  Learn how to attach performance metrics to your transactions.
