We know we should do it, but do we know how?

Can Low-Quality Image Placeholders and LCP play nicely together?

There’s still a lot of misunderstanding about CWV for SEO. Let’s work it out together.

How helpful is Critical CSS?

Your is the single biggest render-blocking part of your page—ensuring it is well-formed is critical.

Learning the lay of the land.

For the most part, web fonts nowadays are faster than ever.

One of the more fundamental rules of building fast websites is to optimise your assets.

One of the key tools that performance engineers have at their disposal is the Performance Budget.

It all started, as these things often do, with a waterfall.

The best request is the one that never happens: in the fight for fast websites, avoiding the network is far better than hitting the network at all.

A lot of companies are often unsure of how, when, or where performance testing sits within their development lifecycle.

How and when browsers download images.

An update to my 2012 article, Code Smells in CSS