DevelopmentSamples
How to eliminate render-blocking resources
Why it’s important, and what to do in HTML, CSS, and JavaScript.
DevelopmentSamples
Explore JavaScript dependencies with Lighthouse Treemap
A new way to visualize all used and unused JavaScript for a site.
DevelopmentOpinions
An informal survey of web performance tooling in 2021
What tools performance engineers are using to measure site speed.
DevelopmentSamples
Web performance tips for 2025
Tiny lessons for turbo-charged websites.