What is Largest Contentful Paint and how does it affect page performance?

Largest Contentful Paint (LCP) measures the time taken for the largest element on your page to load. For example, on a webpage, this is typically an image. A good LCP score is 2.5 seconds or less (shown in green), while 2.5-4 seconds needs improvement (orange), and anything above 4 seconds is poor (red). According to the experts, the best largest contentful element to have is text, as it loads fastest. To optimize LCP for images, you should resize dimensions, reduce file sizes to below 250kB, and use modern formats like AVIF or WebP.