Smashing Magazine posted an interesting post on this new year
Front-End Performance Checklist 2018
and much more to read ...
In fact there is a whole PDF to download
with about 43 points .. yep 43 list of things to review
or here the PDF directly
front-end-performance-checklist-2018.pdf (137.1 KB)
Ah yeah optimizing for perf, we also got that with AS3/Flash/AIR, but man...
when it comes to the HTML5/CSS/JS world I think it's fair to say that it is exponentially more complicated
I guess it's what they call "progress" LOL