Semantic conventions for .NET

This article documents semantic conventions for metrics and traces emitted by the .NET runtime and individual components in the .NET ecosystem.

The following span are currently supported:

• HTTP client, DNS, and TLS: Semantic Conventions for HTTP client and connection-related spans.

The following metrics are currently supported:

• ASP.NET Core: Semantic Conventions for ASP.NET Core routing, exceptions, and rate-limiting metrics.
• DNS: Semantic Conventions for client-side DNS lookups associated with metrics.
• HTTP: Semantic Conventions for HTTP client and server metrics.
• Kestrel: Semantic Conventions for Kestrel web server metrics.
• SignalR: Semantic Conventions for SignalR server metrics.
• Runtime: Semantic conventions for .NET Runtime metrics.