How to use Server Timing to get backend transparency from your CDN
Speed Curve
FEBRUARY 5, 2024
However, that pesky 20% on the back end can have a big impact on downstream metrics like First Contentful Paint (FCP), Largest Contentful Paint (LCP), and any other 'loading' metric you can think of. Google recommends that TTFB be 800ms at the 75th percentile. That performance golden rule still holds true today.
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