Therefore, Largest Contentful Paint (LCP) is the amount of time it takes to load the single largest visible element in the viewport. It represents the website being visually loaded and is one of. The three Core Web Vitals (CWV) metrics Google uses to measure page experience. The first impression users have of your site is how fast it appears to be loaded. The largest element is usually going to be a featured image or maybe the <h1> tag. What Is Largest But it could also be any of these: <img> element <image> element inside an <svg> element.
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Element Background image loaded with the url() function Blocks of text <svg> and <video> may be added in the future. Anything outside the viewport or any executive email list overflow is not considered when figuring out the size. If an image occupies the entire viewport, it’s not considered for LCP. Let’s look at how fast your LCP should be and how to improve it.There are a couple of different ways of measuring LCP you’ll want to look at: field data and lab data. Field data comes from the Chrome User Experience Report (CrUX), which is data from real users of Chrome who choose to share their data.
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Therefore, Best idea of real-world LCP performance across different network conditions, devices, caching, etc. It’s also what you’ll actually be measured on by Hong Kong Lead Google for Core Web Vitals. Lab data is based on tests with the same conditions to make tests repeatable. Google doesn’t use this for Core Web Vitals, but it’s useful. For testing because CrUX/field data is a 28-day rolling average. So it takes a while to see the impact of changes. The best tool to measure LCP depends on the type of data you want (lab/field) and whether you want it for one URL or many.