CSS Wizardry

JULY 23, 2023

The Core Web Vitals Metrics Generally, I approve of the Core Web Vitals metrics themselves ( Largest Contentful Paint , First Input Delay , Cumulative Layout Shift , and the nascent Interaction to Next Paint ). To this end, passing Core Web Vitals means Good LCP and CLS, and Good or Not enough data FID.

Engineering 246

Engineering Google Speed Mobile 246

Speed Curve

APRIL 30, 2024

However, as a general time-based metric, INP didn't leave a lot of hints as to the source of the problem. The lack of support for web performance metrics in Safari is not a new complaint, but it's a big one. As an example, the Interaction Metrics (IX) captured by SpeedCurve are available for Safari. What about iOS?

Google 67

Google Metrics Traffic Mobile 67

Speed Curve

JULY 31, 2023

Google's Core Web Vitals are an attempt to help folks new to web performance focus on three key metrics. 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.

Google 52

Google Metrics Testing Performance 52

Smashing Magazine

MAY 17, 2021

There are three Core Web Vitals metrics that Google will use to help rank sites in their upcoming search algorithm update. CLS , or Cumulative Layout Shift, tracks how elements move or shift on the page absent of actions like a keyboard or click event. A summary of LCP, FID and CLS. Large preview ). Large preview ).

Google 93

Google Analytics Serverless Metrics 93

Smashing Magazine

MARCH 25, 2021

First Contentful Paint (FCP), Cumulative Layout Shift (CLS), Largest Contentful Paint (LCP). However, having a performance budget as a standalone metric might not be of much help. Anyone with a web presence would appreciate the relationship between the effect of various performance measures on business metrics. Large preview ).

Media 117

Media Performance Mobile Latency 117

Smashing Magazine

APRIL 29, 2021

Largest Contentful Paint (LCP) is a Core Web Vitals metric that measures when the largest contentful element (images, text) in a user’s viewport, such as one of these images, becomes visible. Cumulative Layout Shift (CLS, a Core Web Vitals metric) measures the instability of content. Large preview ). Large preview ).

Media 145

Media Network Metrics Mobile 145

Smashing Magazine

AUGUST 3, 2023

Google’s Core Web Vitals is a set of performance metrics that site owners can use to evaluate performance and diagnose performance issues. These metrics provide a different perspective on user experience: Largest Contentful Paint (LCP) Measures the time it takes for the main content on a webpage to load. One of the key Next.js

Performance 74

Performance Cache Traffic Metrics 74