What is LCP and why it matters Largest Contentful Paint (LCP) measures how quickly a page's main content becomes visible. It's the time from navigation start until the largest image or text block renders in the viewport. - Good : 2.5 seconds or less - Needs improvement : 2.5–4.0 seconds - Poor : greater than 4.0 seconds LCP is a Core Web Vital that directly affects user experience and search ranking. On 73% of mobile pages, the LCP element is an image. LCP Subparts Breakdown Every page's LCP breaks down into four sequential subparts with no gaps or overlaps. Understanding which subpart is the…