Articles

eBay’s Font Loading Strategy

by Senthil Padmanabhan

Size Limit: Make the Web lighter

by Andy Barnov and Andrey Sitnik

Building the DOM faster: speculative parsing, async, defer and preload

by Milica Mihajlija

Performant Web Animations and Interactions: Achieving 60 FPS

by Emily Hayman

The Critical Request

by Ben Schwarz

Vue.js docs performance audit

by Artem Denysov

Improving Web Performance to Mirror Engine Speed

by Jonas Badalic

Zero to HTTP/2 with AWS and Hugo

by Josh Habdas

Improving Perceived Performance with Multiple Background Images

by Harry Roberts

How We Load Web Fonts Progressively

by Scott Jehl and Zach Leatherman

Web performance secrets from the BBC

by Oliver Lindberg

Designers guide to web performance optimization

by Jon Yablonski

Why our website is faster than yours

by Declan Rek

Another 10k Apart: Create a Website in 10 KB, Win Prizes!

by Jeffrey Zeldman

Smooth as Butter: Achieving 60 FPS Animations with CSS3

by José Rosário

New super image format for the web — BPG

by Vladimir Jovanović

PNG optimisation

by Bjango

High Performance SVGs

by Sarah Drasner

Lepton image compression: saving 22% losslessly from images at 15MB/s

by Daniel Reiter Horn

Real–world HTTP/2: 400gb of images per day

by Michael Mifsud

Complexities of an infinite scroller

by Surma

Apple tests Google graphics format to speed up websites

by Stephen Shankland

Reducing the start render time on Chorus

by Ian Carrico

Reducing JPG File size

by Colt McAnlis

Service Workers and PWAs: It’s About Reliable Performance, Not “Offline”

by Alex Russell

Thoughts on Page Load Performance

by Michael Yong

18 Tips for Website Performance Optimization

by Brian Jackson

Preload: What Is It Good For?

by Yoav Weiss

CPP: A Standardized Alternative to AMP

by Tim Kadlec

The Anatomy of a Frame

by Paul Lewis

Why BPG will replace GIFs and not only.

by Radu-S. Amarie

Critical Metric: Critical Resources

by Steve Souders

Website Speed Test, Dareboost tips for reliable results

by Damien Jubeau

Understanding Brotli´s Potential

by Tim Kadlec

Performance Budget Builder

by Brad Frost

Setting up HTTP/2

by Surma

The "Average Page" is a myth

by Ilya Grigorik

Developers: What you should know about web performance

by Christophe Limpalair

Instant Web Application

by Gleb Bahmutov

Why aren’t your Images using Chroma-Subsampling?

by Colin Bendell

50+ Web Performance Terms: A Glossary for Understanding the Landscape

by Alex Pinto

Delay

by Jeremy Keith

How Medium does progressive image loading

by José Manuel Pérez

Why Performance Matters, Part 3: Tolerance Management

by Denys Mishunov

Page Weight Doesn't Matter

by Nate Berkopec

Third party content in an HTTP/2 and ad blockers world

by Yoav Weiss

Why AMP is fast

by Malte Ubl

An Introduction to Hardware Acceleration with CSS Animations

by Artem Tabalin

A Lot of Websites Are Going to Start Loading Way Faster

by Lily Hay Newman

Using the Battery Status API to Optimize Your Development

by Simon Codrington

How to animate 'box-shadow' with silky smooth performance

by Tobias Ahlin

The Cost of Frameworks (Response)

by Dave Ruppert

JavaScript Frameworks and Mobile Performance

by Tom Dale

Google+ goes completely responsive

by Paul Kinlan

The Cost of Frameworks

by Paul Lewis

Why Performance Matters, Part 2: Perception Management

by Denys Mishunov

Big Rig

by Paul Lewis

Guide To Using WebP Images Today: A Case Study

by Adrian James and Matt Shull

On Hurk-Jerk: Mixed emotions on progressive critical path rendering

by Dave Rupert

Lazy Loading Images on the Web

by Brian Rinaldi

Web Performance Today

by Jeffrey Zeldman

The viability of JS frameworks on mobile

by Henrik Joreteg

The offline cookbook

by Jake Archibald

Using Web Fonts the Best Way (in 2015)

by Anselm Hannemann

Webfont optimization

by Ilya Grigorik

Accelerated Mobile Pages: A new approach to web performance

by Malte Ubl

Inlining Critical CSS for Dynamic Web Apps

by Nicolas Bevacqua

Introducing RAIL: A User-Centric Model For Performance

by Paul Irish and Paul Lewis

The State of JavaScript on Android in 2015 is… poor

by Jeff Atwood

We spent a week making Trello boards load extremely fast. Here’s how we did it.

by Bobby Grace

Why Performance Matters: The Perception Of Time

by Denys Mishunov

What forces layout / reflow

by Paul Irish

Quick Trick: Using Template to Delay Loading of Images

by Christian Heilmann

The Performance of Houdini Paint

by Ian Kilpatrick

The “Psychological” Speed of Mobile Interfaces

by Oz Lubling

Measuring JavaScript Functions’ Performance

by Peter Bengtsson

Prefetching, preloading, prebrowsing

by Robin Rendle

Using requestIdleCallback

by Paul Lewis

Optimising a canvas animation

by Remy Sharp

Measuring Frontend Performance, the Missing Ingredient

by Rafał Lindemann

Eliminating Roundtrips with Preconnect

by Ilya Grigorik

Performance update #2: Electric Boogaloo

by Dan Chilton

A Gzip Primer for Front-End Development

by Doug Avery

Use Gulp to automate your critical path CSS

by Chris Ruppel

The Difference Between Minification and Gzipping

by Chris Coyier

Understanding Critical CSS

by Dean Hume

Let´s talk about Web Performance

by Nicolas Bevacqua

The technology behind preview photos

by Brian Cabral and Edward Kandrot

Measuring Performance in a Service Worker

by Paul Kinlan

Fixing Performance in the Web Stack

by Nicolas Bevacqua

Mobile page bloat: The average page served to mobile is 3X bigger than it was four years ago

by Tammy Everts

Use Gulp & UnCSS to slim down your CSS framework

by Chris Ruppel

PerfAudit: MaterialUp.com

Guidelines for the Human Perception of Speed

by Matt West

The SEO Expert´s Guide to Web Performance Using WebPageTest

by Mark Isham

Performance: Showing Versus Telling

by Lara Hogan

Analysis of Reddit Mobile´s rendering performance

by Paul Irish

React + Performance = ?

by Paul Lewis

Performant CSS Animations: Netflix Case Study

by Eli White

Fix scrolling performance with CSS will-change property

by Chris Ruppel

Things I Learned Last Night at a Web Performance Meetup

by Chris Love

High Performance Images: Beautiful Shouldn’t Mean Slow

by Guy Podjarny

Optimising Google Fonts for fast load times

by Dean Hume

Improved Compression Ratios Using Zopfli

by Dean Hume

New Performance Tools in Firefox Developer Edition 40

by Dave Camp and Jason Weathersby

Making a difference with performance

by Jaime Caballero

Slow load times are killing publishers in mobile

by Ricardo Bilton

The web is fast by default, let’s keep it fast

by Hidde de Vries

text-rendering: optimizeLegibility is Decadent and Depraved

by Mat Marquis

Choosing Performance

by Tim Kadlec

How to get important images to load early

by Alex Painter

Hero Image Custom Metrics

by Steve Souders

Is Mobile Friendly “Friendly” Enough?

by Matt Shull

Metrics can help improve website user experience

by George Lawton

Need for Speed – How to Improve your Website Performance

by Vaclovas Vicius

A beginner’s guide to understanding synthetic and real-user monitoring

by Tammy Everts

Rendering Performance

by Paul Lewis

Useful SVGO[ptimization] Tools

by Sara Soueidan

How To Talk About Performance Testing With CEOs And Business Managers

by Tim Hinds

DevTools: Visually Re-engineering CSS For Faster Paint Times

by Addy Osmani

Open Source Web Performance Dashboard

by Peter Hedenskog

Wicked Fast Websites

by Chris Ferdinandi

Case Study: How Making Pages 2 Seconds Faster Boosted Conversions By 66%

by Tammy Everts

WebP Images & Performance

by Matt Shull

Improve Performance with the 2 types of Image Optimization

by Billy Hoffman

Simulated RUM testing with PhantomJS 2

by Wesley Hales

Google has expanded mobile-friendliness as a ranking signal. How to ensure your site is ready

by Tammy Everts

Need for Speed 2: Improving Front-End Performance

by Jonathan Suh

DevTools Timeline: Now Providing the Full Story

by Heather Mahan

More Weight Doesn´t Mean More Wait

by Scott Jehl

CSS vs. JS Animation: Which is Faster?

by Julian Shapiro

5 Can’t Miss Web Performance Optimization Basics

by Andreas Grabner

Why using current user data to justify not optimizing for mobile is b*llshit

by Chris Ferdinandi

How to Keep your Site Fast for Mobile-Friendly

by Billy Hoffman

Fixing the ‘Blank Text’ Problem

by Ilya Grigorik

What nobody tells you about “will-change”

by Thierry Koblentz

Measuring Web Performance

by Matt Shull

High performance HTML

by Sam Dutton

Loading CSS without blocking render

by Keith Clark

Faster Font Loading with Font Events

by Jonathan Suh

Advanced Performance Audits With DevTools

by Paul Irish

PerfAudit: DeviantArt.com

Inlining critical CSS for better web performance

by Chris Ferdinandi

Treat Web Performance Issues Like Software Bugs

by Billy Hoffman

New JavaScript techniques for rapid page loads

by Marja Hölttä

The Complete Guide to Reducing Page Weight

by Craig Buckler

PerfAudit: CanIUse.com

PerfAudit: HindustanTimes.com

The Case for Auto-Preloading: The Anatomy of a Battle-Tested WPO Treatment

by Kent Alstad

Performance Optimization is a Process Not an Event

by Billy Hoffman

Strategies for Staying on Top of Web Performance

by Chris Coyier

Inlining critical CSS for first-time visits

by Jeremy Keith

Critical CSS and Performance

by David Bushell

Google’s experimental new “slow” label could revolutionize how we tackle web performance

by Tammy Everts

Speed Is A Killer – Why Decreasing Page Load Time Can Drastically Increase Conversions

by Sherice Jacob

Flipboard and the “mobile Web” Dream…

by Christian Heilmann

Responsive Images Are Here. Now What?

by Jason Grigsby

Smaller Fonts with WOFF 2.0 and unicode-range

by Rod Sheeter

Site Speed & PPC Performance: Why You Can’t Ignore A Slow Site Anymore

by Pauline Jakober

Responsible Social Share Links

by Jonathan Suh

Font Loading Revisited with Font Events

by Scott Jehl

High performance touch interactions

by Matt Hinchliffe

Web Font Performance A Case Study

by Cory Rylan

5 Ways to Make Your Site Smaller and Faster

by David Walsh

60 FPS on the Mobile Web

by Michael Johnston

FLIP Your Animations

by Paul Lewis

The 15 Commandments of Front-End Performance

by Alex Sexton

Client-side MVC´s Major Bug

by Tim Kadlec

Looking at Web Performance From Different Angles

by Alex Podelko

Tour of a Performant and Responsive CSS Only Site

by Rajoshi Ghosh

Resilient Networking: Planning for Failure

by Ilya Grigorik

Animating the Mobile Web

by Zain Manji

Optimizing your Images: Make your Website Load Faster

by Matt Shull

Flash of Faux Text — Still More on Font Loading

by Zach Leatherman

Measuring Site Speed with Google Analytics

by Eric W. Mobley

These 7 things are slowing down your site’s user experience (and you have no control over them)

by Tammy Everts

An Introduction to Perceived Performance

by Matt West

Timing Guidelines for Exposing Hidden Content

by Aurora Bedford

The Power of Perceived Performance

by Senthil Padmanabhan

Hardware Accelerated CSS: The Nice vs The Naughty

by Ariya Hidayat

Leverage Browser Storage For a Faster Web

by Chris Love

8 Performance Optimizations You Can Do in an Afternoon

by Eric W. Mobley

How we use web fonts responsibly, or, avoiding a @font-face-palm

by Zach Leatherman

Tips For Optimising SVG Delivery For The Web

by Sara Soueidan

The Evolution of Application Performance & End User Engagement

by Vick Viren Vaishnavi

Content Delivery Networks vs. Application Optimization

by Brendan MacArthur

AngularJS Performance in Large Applications

Driving WebPagetest from a Google Docs Spreadsheet

by Andy Davies

The Hidden Cost of Web Components

by Kyle Conarro

The Pain of Duplicate Scripts

by Steve Souders

Async Fragments: Rediscovering Progressive HTML Rendering with Marko

by Patrick Steele-Idem

Changing Culture at Your Organization

by Lara Hogan

Automatically removing unused CSS using Grunt

by Dean Hume

Loading CSS Asynchronously

by Dean Hume

Web Page Performance - Profiling paint times

by Dean Hume

The Ultimate Image Optimization Cheat Sheet

by Dean Hume

How to Make a Performance Budget

by Daniel Mall

Building High Performance Websites

by Jake Johnson

Slow is Better: Why Sequencing is More Important Than Speed

by Brendan MacArthur

Page bloat update: The average top 1000 web page is 1795 KB in size

by Tammy Everts

Performance As A Competitive Advantage: Part 2 WalMart.com vs BestBuy.com

by Chris Love

Doubling SVG FPS Rates at Khan Academy

by Charlie Marsh

Planning for Performance

by Scott Jehl

Web Performance Optimization is a Competitive Advantage

by Chris Love

Frame Timer - Explainer

by Paul Irish

Better @font-face with Font Load Events

by Zach Leatherman

How to build wicked fast RWD sites

by Chris Ferdinandi

How to build a high performance website

by Chris Ferdinandi

Why does website speed matter?

by Chris Ferdinandi

Social Media Share Buttons Impact On Website Performance

by Eric W. Mobley

Performance Budget Metrics

by Tim Kadlec

Loading web pages really fast - optimistic page loading with Instantclick.io

by Adam Beres-Deak

Critical Path Performance Optimization at Pony Foo

by Nicolas Bevacqua

BrowserDiet

by Zeno Rocha

A Beginner’s Guide to Website Speed Optimization

by Mark Gavalda

CSS Guidelines

by Harry Roberts

Deferring Images

by Patrick Sexton

Performance Budgeting With Grunt

by Tim Kadlec

Fast Enough

by Tim Kadlec

“RWD Is Bad for Performance” Is Good for Performance

by Tim Kadlec

Improving Smashing Magazine’s Performance: A Case Study

by Vitaly Friedman

Performance Matters

Improving UX Through Front-End Performance

by Lara Hogan

Responsive Images in Practice

by Eric Portis

RWD Bloat Part II

by Dave Rupert

RWD Bloat

by Dave Rupert

Optimizing the Critical Rendering Path

by Stephan Max

A Beginner´s Guide to Perceived Performance: 4 Ways to Make Your Mobile Site Feel Like a Native App

by Kyle Peatt

The Principles of Performance by Design

by Eric W. Mobley

How we make RWD sites load fast as heck

by Scott Jehl

Loading webfonts with high performance on responsive websites

by Adam Beres-Deak

Resource Timing practical tips

by Steve Souders

Improve Page Load Times With DNS Prefetching

by Dean Hume

CSS at Lonely Planet

by Ian Feather

One Step Ahead: Improving Performance with Prebrowsing

by Santiago Valderrama

Everything You Need to Know About the CSS will-change Property

by Sara Soueidan

CSS Triggers

by Paul Lewis

Fixing Layout thrashing in the real world

by Matt Andrews

Setting a Performance Budget

by Tim Kadlec

Why web performance and responsive web design matter

by Chris Ferdinandi