Largest Contentful Paint (LCP)
A Core Web Vital that measures how long it takes for the largest content element to become visible.
Quick Definition
A Core Web Vital that measures how long it takes for the largest content element to become visible.
Full Explanation
Largest Contentful Paint (LCP) is one of Google's three Core Web Vitals metrics. It measures the time from when the page starts loading to when the largest text block or image element is rendered within the viewport. LCP is crucial for SEO as it's a direct ranking factor. A good LCP score is under 2.5 seconds at the 75th percentile of page loads. Common causes of poor LCP include slow server response times, render-blocking resources, slow resource load times, and client-side rendering. To improve LCP, optimize your server, use a CDN, preload important resources, and ensure the LCP element loads quickly.
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Related Terms
Cumulative Layout Shift
A Core Web Vital that measures visual stability by quantifying unexpected layout shifts.
Interaction to Next Paint
A Core Web Vital that measures page responsiveness by tracking the latency of user interactions.
Time to First Byte
A metric measuring the time from request start until the first byte of the response is received.
First Contentful Paint
A performance metric measuring when the first content element is rendered on screen.
Core Web Vitals
A set of three metrics (LCP, INP, CLS) that Google uses to measure user experience and as ranking factors.