The Largest Contentful Paint is documented on the website Google Web Dev. This page translates into French and summarises the main content
<aside> 💡 The Largest Contentful Paint (LCP) is an important metric, which focuses on the user's perception of loading speed as it marks the point in the loading process when the main content of the page has probably loaded. A fast LCP assures the user that the page is usable.
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Largest Contentful Paint or LCP is a metric that measures the rendering time of the largest visible text or image from the start of the page load.
To give a good experience, websites should have an LCP of less than 2.5 seconds. To make sure you are achieving this goal for the majority of your users, you can check that 75% of your users (on mobile and desktop) have this score. Quanta's Real User Monitoring allows you to do this.
The types of elements considered are:
<img>
<image>
in an element<I'm not sure what to do.
<Video
via illustration imageurl(](<https://developer.mozilla.org/docs/Web/CSS/url()>))
(in contrast to CSS gradients)Additional elements (e.g:<I'm not sure what to do.
,<Video
) are envisaged in the standard in the future.