Performance
Articles and tools relating to web performance.
-
A Smashing Guide to Performance
A continually updated collection of guides on web performance.
-
Cache-Control for Civilians
An in-depth exploration of how to use cache-control headers for optimal performance.
-
Is WebP really better than JPEG?
An analysis of the perceptual performance of different image formats.
-
JPEG XL and the Pareto Front
An analysis of image size vs encode time for various image formats and encoders.
-
Let's talk AVIF - and why we're not adding support just yet
A look at AVIF's encode and decode performance.
-
Make Jamstack Slow? Challenge Accepted.
A very interesting article on common things that slow down sites, including tracking scripts.
-
PageSpeed Insights
Tool to check for, and suggest ways to improve, performance problems.
-
Pingdom Tools
Set of tools to analyse page load speed.
-
Self-Host Your Static Assets
A look at the performance of self-hosting vs using a CDN for third-party assets.
-
Web Fundamentals
Google's training material on web performance.