Veille de CCM Benchmark Group

<smashingmagazine.com>

I've heard that to avoid render-blocking issues, it's good to inline critical CSS directly in the &lt;HEAD&gt; tag by including the actual CSS in &lt;STYLE&gt; tags, and then load the rest of the CSS

<webmasters.stackexchange.com>.

A guide for measuring Core Web Vitals (LCP, FID, and CLS) in Google Analytics 4 using Google Tag Manager and a custom template from the template gallery.

Tout est dans le titre … pouvoir suivre LCP, FID ou CLS dans GA ce serait pas mal non en complément des extensions diverses ? <www.simoahava.com>

Introducing a new Performance Heads-Up Display (HUD) to Chrome and Chrome for Android

<addyosmani.com> Core Web Vitals HUD directement dispo dans Chrome (a partir de la version 90)

<vitals-leaderboard.pazguille.me Vitals Leaderboard> allows you to compare your scores against competition on mobile, tablet, desktop, and on 3G and 4G.

In this article, we’ll take a close look at some of the changes we made on this very site &mdash; running on JAMStack with React &mdash; to optimize the web performance and improve the Core Web Vitals metrics. With some of the mistakes we’ve made, and som

"How We Improved SmashingMag Performance (& Core Web Vitals metrics), a case study" <www.smashingmagazine.com>

Le programme de l’édition 2019 de We Love Speed

<www.welovespeed.com>

“cross-site resources like fonts can’t be shared on the same CDN anymore. This is due to the partitioned browser cache” >

AVIF is the first browser image format we've had in 10 years. Let's see how it performs…

<jakearchibald.com>

Cumulative Layout Shift (CLS) is a metric that quantifies how often users experience sudden shifts in page content. In this guide, we'll cover optimizing common causes of CLS such as images and iframes without dimensions or dynamic content.

<web.dev>

Bringing web developers together, from home

<web.dev>

<twitter.com> Firefox se met à troller (ou indiquer) les requêtes lentes dans son dev tool

Analyze your website speed test report generated using SpeedLab by BrowserStack.

Nouvel outil de BrowserStack, qui teste la perf de sites sur plein de navigateurs différents ... ex de rapport pour journaldunet : <www.browserstack.com>

Traduction d'une synthèse d'Addy Osmani sur la manière dont les scripts étaient téléchargés et exécutés dans Chrome jusqu'à février 2019.

<boris.schapira.dev>

Essential metrics for a healthy site

<web.dev>

Chaque nouvelle année s’accompagne de son lot de prédictions. Comme les “bonnes résolutions”, les mêmes se retrouvent souvent d’année en année, ou au contraire ne sont pas observées. Pour 2020, à défaut d’une boule de cristal, nous avons sondé nos experts

<www.fasterize.com>

The PageSpeed Insights API provides free access to performance monitoring for web pages and returns data with suggestions for how to improve.

<dev.to>

<twitter.com>

Traditionally one of the advantages of loading web fonts from Google Fonts was that you'd potentially benefit from it already being in the browser cache from another site the user had previously visit

<blog.josephscott.org>

A curated list of webpack tools for web performance - iamakulov/awesome-webpack-perf

<github.com>