Hover and quicklink prefetching works for the vast majority of web apps. I’d recommend starting with hover prefetching moving to quicklink approach if fast navigation is from a high-priority and you don’t have many links.

Guide de "ce qu'il ne faut pas oublier" quand on design pour la performance : écrans de chargement, vide, erreurs, synchronisation, perte de connexion, etc.

There’s a huge focus recently on JavaScript bundle size: how big are your dependencies? Could you use a smaller one? Could you lazy-load it? But I believe we focus on bundle size first and foremost because it’s easy to measure.

[…] you could imagine some basic stats around initial CPU execution time, memory usage, and disk usage that wouldn’t be impossible to measure in an automated way.

There has been a lot of uncertainty and confusion since Google announced the Page Experience Update in 2020. With just over three months before the update goes live in May, here's what we know about it.