TIL:
Paint timing metrics are too optimistic. In 85-95% of cases, they are recorded before any pixels are actually rendered to the screen.
From @Joseph_Wynn's article for #SpeedCurve: https://speedcurve.com/blog/an-analysis-of-chromiums-paint-timing-metrics/
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I love (some) boring #SpeedCurve graphs… 😅
I love #SpeedCurve's simple and efficient Core Web Vitals Real User Monitoring, especially when everything is green! 🥳
This is a real e-commerce site, with many real users everyday. After a few months of performance optimisation.
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The performance poverty line is the plateau at which changes to your website’s rendering metrics (such as Start Render and Largest Contentful Paint)…
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