Load Time refers to the Largest Contentful Paint (LCP), which is a Core Web Vitals metric capturing how quickly the main content of a page becomes visible to users.
LCP measures the render time of the largest visible content element on the screen. This is typically a large image or text block. It reflects what users perceive as the moment when the page finishes loading.
How it's calculated
LCP makes use of data gathered from supported browsers (Safari and iOS devices do not currently support LCP). It is based on a standard browser API and reported directly from the perspective of the browser. It represents how actual users experience your site. Values lower than 1ms and higher than 60,000ms are excluded.
How to interpret it
Long load times can have a huge impact on visitor frustration. Keep an eye on your page load times and how they correlate with Bounce Rate, Exit Rate, and Conversion Rates.
A faster LCP means that your users see your content sooner and this can translate to increased engagement and lower bounce rates. Conversely, a lower LCP can indicate performance problems such as large images, slow-loading fonts, or render-blocking resources.