Maximally optimizing image loading for the web in 2021
Performance
Performance — Smashing Magazine
Reducing the Site-Speed Impact of Third-Party Tags
Does Web Performance Matter? It Depends. | Aleksandr Hovhannisyan
Scott Jehl
Request Map Generator
How We Improved SmashingMag Performance — Smashing Magazine
Lighthouse performance scoring
Optimizing Video For Size And Quality — Smashing Magazine
JavaScript performance beyond bundle size
SpeedCurve | An Opinionated Guide to Performance Budgets
Comment Uni-Médias mobilise toutes ses équipes pour accélérer ses sites web - Fasterize
How to Improve CSS Performance | Calibre
Making the slowest 'fast' page
The Core Web Vitals hype train
Site Speed and Search Ranking (Complete Guide) | Calibre
How To Boost Media Performance On A Budget — Smashing Magazine
Reduce WebFont Size
Lightning-Fast Web Performance
How do Chrome extensions impact browser performance?
Data
Blackfire.io: Continuous Performance Testing
Artillery.io | Load & Smoke Testing
An In-Depth Guide To Measuring Core Web Vitals — Smashing Magazine
The Almost-Complete Guide to Cumulative Layout Shift
How to Convince Your Boss to Care About Speed | Calibre
Apache JMeter - User's Manual: Generating Dashboard Report
SVGOMG - SVGO's Missing GUI
Why you should be testing your 404 pages web performance - Matt Hobbs
It's time to lazy-load offscreen iframes!