Lab · 03
I don't claim fast. Measure it.
Every number below was just measured by your own browser, on this page, as it loaded. No lab, no cherry-picked test. This is the standard every build I ship is held to.
…
Live score for this page
Measuring…
Server response
—ms
Time to the first byte from the server
First paint
—ms
When you first saw something
Largest paint
—ms
When the main content had rendered
Layout shift
—
How much the page jumped while loading
How it's built This reads the browser's own Performance API and a PerformanceObserver for the Core Web Vitals Google actually ranks on. The thresholds (green / amber) are Google's published ones. Refresh and watch it re-measure. Nothing is sent anywhere.
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