Site Speed by DebugBear

View Web Vitals metrics for the websites you visit and quickly navigate to external web performance testing tools.

The extension also shows the observed metrics collected by PageSpeed Insights prior to applying the throttling simulation. This can help you interpret the final reported metrics.

The extension shows the following metrics:
- Full TTFB
- First Contentful Paint
- Largest Contentful Paint
- Cumulative Layout Shift / CLS
- First Input Delay (only after user interaction with the current page)
- Interaction to Next Paint (only after user interaction with the current page)

The "View on DebugBear" link is shown to users logged into the DebugBear monitoring tool.