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Speed metrics can be quite abstract, so on my blog I've tried to make them more understandable. At the bottom of each page, you now get Largest Contentful Pain (LCP), Cumulative Layout Shift (CLS), and First Input Delay (FID). Try it on blog.tomayac.com/2018/07/19/submitting-a-microsoft-edge-extension-to-the-microsoft-store-135142/ and check the LCP.
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😂 Just seeing a typo: Largest Contentful Pain(t). A new speed metric. By the way, if you don’t see it, it’s because
PerformanceObserver
is spec’ed to ignore metrics it doesn’t know. So while iOS has the observer, it doesn’t understand the metrics I’m trying to show. WAI.