Speed Curve

APRIL 30, 2024

Step 2: Navigate to the INP heatmap Look for thresholds that have been exceeded, using the color-based Google-defined thresholds for INP: Green = 500ms Step 3: Determine where the most time is spent Below are a few examples to go along with this Web.dev post on Optimizing INP by Jeremy Wagner and Philip Walton.

Google 66

Google Metrics Traffic Mobile 66

CSS Wizardry

JULY 23, 2023

To this end, passing Core Web Vitals means Good LCP and CLS, and Good or Not enough data FID. SPAs): We (the Chrome Speed Metrics Team) recently outlined our initial research into options for making the CLS metric more fair to pages that are open for a long time.

Engineering 246

Engineering Google Speed Mobile 246

Smashing Magazine

MAY 17, 2021

Google bins experiences into “Good”, “Needs Improvement”, and “Poor” based on the LCP, FID, and CLS scores real people have on the site: LCP , or Largest Contentful Paint, defines the time it takes for the largest content element to become visible. A summary of LCP, FID and CLS. Our CLS score still had the most room for improvement.

Google 93

Google Analytics Serverless Metrics 93

Speed Curve

JULY 31, 2023

In this post, we will dive deeper into Cumulative Layout Shift (CLS) and how it has quietly evolved over the years. Because CLS has been around for a while, you may already have some idea of what it represents. Hold your answer in your head as we explore the depths of CLS. That yucky moment is called a layout shift.

Google 52

Google Metrics Testing Performance 52

Smashing Magazine

AUGUST 3, 2023

Cumulative Layout Shift (CLS) Calculates the visual stability of a page. Image source: web.dev ) ( Large preview ) While optimizing for FID and CLS was relatively straightforward, LCP posed a greater challenge due to the multiple factors involved. Core Web Vital metrics definitions.

Performance 74

Performance Cache Traffic Metrics 74

Smashing Magazine

MARCH 25, 2021

First Contentful Paint (FCP), Cumulative Layout Shift (CLS), Largest Contentful Paint (LCP). Since the CWVs will also be a signal for Google to crawlers, it makes sense to monitor and optimize for those metrics : Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS). Serve the right format.

Media 118

Media Performance Mobile Latency 118

Smashing Magazine

APRIL 29, 2021

Cumulative Layout Shift (CLS, a Core Web Vitals metric) measures the instability of content. The most common causes of CLS include images without dimensions (see below) which can push down content when they load and snap into place; ignoring them means the browser may not be able to reserve sufficient space in advance of them loading.

Media 145

Media Network Metrics Mobile 145