Wow, this article is great (and crazy long, kind of speaks to how complicated things have gotten):
https://www.smashingmagazine.com/2020/01/front-end-performance-checklist-2020-pdf-pages/
Wow, this article is great (and crazy long, kind of speaks to how complicated things have gotten):
https://www.smashingmagazine.com/2020/01/front-end-performance-checklist-2020-pdf-pages/