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Web Performance

All things speed and scalability on the web.

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We Love Speed 2019 on September 20 in Lille, France

We Love Speed 2019 on September 20 in Lille, France

5
Comments
3 min read
Measuring Cumulative Layout Shift (CLS) in WebPageTest

Measuring Cumulative Layout Shift (CLS) in WebPageTest

38
Comments 11
3 min read
Automate lighthouse audits for your Progressive Web Application

Automate lighthouse audits for your Progressive Web Application

62
Comments 1
3 min read
Is Web Assembly the future?

Is Web Assembly the future?

8
Comments 3
1 min read
Lazy loading images with vanilla JavaScript

Lazy loading images with vanilla JavaScript

145
Comments 9
8 min read
Should this feature be added to Dev.to ?

Should this feature be added to Dev.to ?

6
Comments 1
1 min read
Virtual Scrolling with Angular

Virtual Scrolling with Angular

11
Comments 1
4 min read
Write faster JavaScript

Write faster JavaScript

135
Comments 17
5 min read
Getting started with Web Performance

Getting started with Web Performance

20
Comments
11 min read
Javascript Array.push is 945x faster than Array.concat 🤯🤔

Javascript Array.push is 945x faster than Array.concat 🤯🤔

791
Comments 73
8 min read
Measuring Interactivity with TTI: Time To (consistently) Interactive

Measuring Interactivity with TTI: Time To (consistently) Interactive

9
Comments
16 min read
Improve HTML and CSS performance

Improve HTML and CSS performance

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Comments 16
5 min read
If you enable "lazy loading" in chrome://flags, your DEV browsing experience will be moderately more efficient 😄

If you enable "lazy loading" in chrome://flags, your DEV browsing experience will be moderately more efficient 😄

67
Comments 11
1 min read
Knock out your unused CSS

Knock out your unused CSS

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Comments 3
8 min read
OffscreenCanvas - Render your graphics off the main thread

OffscreenCanvas - Render your graphics off the main thread

12
Comments
5 min read
Image optimisation

Image optimisation

202
Comments 11
10 min read
Web font optimisation

Web font optimisation

103
Comments 3
6 min read
Image Optimization: Understanding the Exact Impact on Google’s Performance Score to Rank Higher

Image Optimization: Understanding the Exact Impact on Google’s Performance Score to Rank Higher

14
Comments
6 min read
Digital music and selfies: the legacy of Jean-Baptiste Joseph Fourier

Digital music and selfies: the legacy of Jean-Baptiste Joseph Fourier

39
Comments 3
6 min read
Optimising JavaScript

Optimising JavaScript

100
Comments 1
6 min read
How to use Preload/Prefetch to boost load time

How to use Preload/Prefetch to boost load time

36
Comments
4 min read
How We Created a Multi-site Setup for a Vehicle Marketplace: Part 2

How We Created a Multi-site Setup for a Vehicle Marketplace: Part 2

8
Comments
4 min read
Google Lighthouse custom audits tutorial

Google Lighthouse custom audits tutorial

14
Comments
7 min read
Should I finish loading lazy images while the browser is idle?

Should I finish loading lazy images while the browser is idle?

4
Comments
1 min read
Stop copying your process.env.NODE_ENV to local variables! 🤯

Stop copying your process.env.NODE_ENV to local variables! 🤯

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Comments 2
2 min read
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