LCP

What does LCP stand for?

Largest Contentful Paint

Largest contentful paint (LCP) is a metric that measures the perceived load speed of a webpage. It is one of the core web vitals introduced by Google in 2020 to objectively analyze a website’s user experience (UX).

Unlike similar metrics, LCP doesn’t measure the time it takes for all of the elements on a page to load — only the time it takes for the element with the largest visible area to render. By focusing on only the largest element, this metric can more accurately determine the load speed perceived or felt by the user.

According to Google’s research, page load delays are the most common form of interruption web users experience. These delays have an especially negative impact on UX if the user must visit several different pages to reach his or her final destination.

Google provides a handful of tools to measure and improve LCP and recommends that web developers reduce the LCP of their webpages to 2.5 seconds or less. From a development perspective, this often involves reducing the file size of image assets and minimizing the time it takes to load fonts and render text.

Example

"We improved the page's LCP by reducing the file size of the top image."
The largest element changing as the webpage loads

The largest element changing as the webpage loads

Related Slang

Usage

Last Updated: June 11, 2021

LCP definition

This page explains what the acronym "LCP" means. The definition, example, and related terms listed above have been written and compiled by the Slangit team.

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