You have an Azure App Service web app named App1. Which tool should you use to collect performance traces for App1?

Azure Application Insights Profiler is specifically designed to collect performance traces and detailed diagnostic data for applications, including Azure App Services. It helps identify bottlenecks and slow code paths by analyzing execution times of individual requests. The Activity log records subscription-level events, like resource creation or deletion, not application-level performance traces. The Deployment Center is used for continuous integration and deployment, not for performance monitoring. The Diagnose and solve problems settings provide general troubleshooting tools and insights, but for deep performance tracing, Application Insights Profiler offers more granular detail.