Recording Performance Data Using Developer Tools

Without tools to analyze website performance, you're in the dark about what to modify to make your website run as smoothly as possible.

📝 This lesson is based on Chrome Version 85, so there might be slight differences, but the overall process should be similar from browser to browser and version to version.

Runtime performance is how your page performs when it is running, as opposed to when it is loading. We’ll load a given app in this lesson and actually get to take a close look at how all the runtime steps, such as JavaScript, styling, and painting happen in the real world.

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