---
type: Glossary Term
title: "Largest Contentful Paint (LCP)"
description: "The render time of the largest content element visible in the viewport."
resource: "https://prerendering.com/glossary/lcp"
tags: [metrics, glossary]
timestamp: 2026-05-11T00:00:00Z
---

# Largest Contentful Paint (LCP)

The render time of the largest content element visible in the viewport.

A Core Web Vital. Measures when the largest text block, image, or video in the initial viewport finishes rendering. Good < 2.5s, needs improvement 2.5-4.0s, poor > 4.0s. On JS-heavy sites, LCP is often a hero image or above-the-fold heading. Fonts, render-blocking JS, and hydration delays push LCP up.

Also known as: LCP.

## Related

- [Core Web Vitals Optimization for Engineering Teams](/blog/core-web-vitals-for-engineering-teams.md)