The five best design links, every weekday

Category: Performance

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tonsky.me

JavaScript Bloat in 2024

What is the average size of JavaScript code downloaded per website? Let's find out!

blog.danieljanus.pl

Lossy CSS compression for fun and loss (or profit)

Late last year, I had an idea that’s been steadily brewing in my head.

davidwalsh.name

Fixing Cumulative Layout Shift Problems

Cumulative Layout Shift (CLS) is one of the Core Web Vital performance metrics.

htmhell.dev

Getting started with Web Performance

Web performance can be pretty tricky. I mention this so you don’t get demoralized if you hit a wall or struggle to identify an issue.

smashingmagazine.com

Preparing For Interaction To Next Paint, A New Web Core Vital

Starting in March 2024, Interaction to Next Paint will formally replace First Input Delay as a Core Web Vital metric.

csswizardry.com

The Three Cs: 🤝 Concatenate, 🗜️ Compress, 🗳️ Cache

We know we should do it, but do we know how?

csswizardry.com

The Ultimate Low-Quality Image Placeholder Technique

Can Low-Quality Image Placeholders and LCP play nicely together?

cloudfour.com

Stop Lazy Loading Product and Hero Images

I see a recurring performance problem on many ecommerce sites—the most important images on the page are being lazy loaded when they shouldn’t be.

smashingmagazine.com

How We Optimized Performance To Serve A Global Audience

How Liran Cohen and the team at Bookaway, a travel booking service, dramatically improved their site’s performance.

csswizardry.com

Core Web Vitals for Search Engine Optimisation: What Do We Need to Know?

There’s still a lot of misunderstanding about CWV for SEO. Let’s work it out together.

css-irl.info

Reducing Complexity in Front End Development

As web applications grow larger, they inevitably fall prey to complexity, despite our best intentions.

nray.dev

300ms Faster: Reducing Wikipedia’s Total Blocking Time

How two simple steps improved the responsiveness of Wikipedia’s mobile site.

astro.build

2023 Web Framework Performance Report

A look at how different web frameworks perform in the real world in 2023.

infrequently.org

The Market for Lemons

New web services are being built to a self-defeatingly low UX and performance standard.

blogs.windows.com

The truth about CSS selector performance

If you’re a web developer, you may have already heard that some CSS selectors are faster than others.

web.dev

Our top Core Web Vitals recommendations for 2023

A collection of best practices for optimizing websites’ Core Web Vitals performance based on the state of the web in 2023.

infrequently.org

The Performance Inequality Gap, 2023

When digital is society's default, slow is exclusionary.

pepelsbey.dev

Conditionally Adaptive CSS

Browser behavior that might improve your performance.

css-tricks.com

GIFs Without the .gif: The Most Performant Image and Video Options Right Now

So you want an auto-playing looping video without sound? In popular vernacular this is the very meaning of the word GIF.

csswizardry.com

Critical CSS? Not So Fast!

How helpful is Critical CSS?