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What Is First Contentful Paint (FCP)?
On the web, first impressions are everything. And with a slow FCP, you don’t have a chance of making even a decent first impression. Read more…
First Input Delay (FID): What It Is & How to Optimize It
FID represents one of the three pillars of Google's Core Web Vitals program - Interactivity. Measuring your FID is also a great way to determine the first impression your website makes. Read more...
What is Total Blocking Time (TBT)? [New Page Speed Metric]
Users hate unresponsive pages. But not all unresponsive pages are the same. The TBT metric measures the severity of the unresponsiveness by performing a granular analysis of each task on the main thread. Read more...
What is Cumulative Layout Shift (CLS)?
CLS is a completely new and unique website performance metric. It's part of Google's PageSpeed Insights tool and will soon be a ranking factor. Read more...

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