app.telemetry Page Speed Monitor is a Firefox extension that measures page load times using W3C Navigation Timing data. It shows overall load time in the browser toolbar and provides detailed offsets and durations for individual loading steps, helping web developers analyze webpage performance.
In the Browser DevTools & extensions space, app.telemetry Page Speed Monitor takes a focused approach. It focuses on understanding webpage performance and identifying which loading steps make pages slow. app.telemetry Page Speed Monitor is a B2B product aimed at web developers and performance analysts. app.telemetry Page Speed Monitor is free to use. It ships for the web and embeddable surfaces.
Behind app.telemetry Page Speed Monitor is app.telemetry, and it first shipped in 2012. Among its 5 catalogued features are load time display, navigation timing metrics, and step duration breakdown. The interface is available in 32 languages, including Czech, German, and Greek.
Summary written by a language model from the project’s public pages.
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