Google’s core web vitals & W3C trace context
Blog post from New Relic
New Relic has enhanced its Full-Stack Observability product by improving its Browser agent and Real User Monitoring (RUM) capabilities, which now include W3C Trace Context standardization and Cumulative Layout Shift (CLS) to enhance web performance visibility and improve troubleshooting. The W3C Trace Context standardization allows for cross-vendor trace interoperability, enabling efficient distributed tracing across various systems and vendors, thereby reducing fragmented traces and easing troubleshooting. The addition of CLS as a metric helps measure webpage stability by quantifying unexpected layout shifts, allowing teams to assess and optimize the visual stability of their web pages alongside other Core Web Vitals like First Input Delay and Largest Contentful Paint. These improvements aim to help frontend and web developers focus more on problem-solving while providing a comprehensive view of end-user performance.