Note from 12 December 2022
Of course we don't work on performance improvements only for Google, but the Search Console is our clients' main concern, so when it shows such a graph, it's satisfying for everyone! 🎉

Of course we don't work on performance improvements only for Google, but the Search Console is our clients' main concern, so when it shows such a graph, it's satisfying for everyone! 🎉

Raphaël Dardeau
De SPA à MPA : reprendre en main la performance
Avec une SPA, la performance dépend d’un temps d’exécution global de l’application, alors qu’avec une MPA, elle découle directement du travail réellement…
Jeremy Wagner
New field insights for debugging INP
Interaction to Next Paint (INP) is a Core Web Vital that measures how responsive a page is to interactions. Due to INP's scope, it can be difficult…
Apparently, an image whose part above the fold is indeed the largest, but of which only a small part can be seen, can be considered an LCP element, even if another image has a larger part visible... 😭
You can see this for my photography site in this WebPageTest result:
https://www.webpagetest.org/vitals.php?test=230606_BiDcN4_4NJ&run=3&cached=0#lcp

Watch Out for Layout Shifts with ‘ch’ Units
In our case, we were using ch units to define our page layout. This meant that our post content was equal to 50ch units (or the width of fifty…
Limiting the image density on mobile devices drasticaly improves performance, with no visual loss, so we did it!

I still wish it was much easier than dealing with <picture> and x descriptors for fluid images… 😞
With a <img maxdensity="2.5" …> attribute for example!
If you agree, comment:
https://github.com/whatwg/html/issues/4421