Wow, that site is fast. Granted, I have a decent computer and fast internet, but I don't usually get that kind of speed. And the site is not super-lightweight

Wow, that site is fast. Granted, I have a decent computer and fast internet, but I don't usually get that kind of speed. And the site is not super-lightweight either (it is React, not hand-crafted vanilla JS). Must be some good optimization, good hosting, and little if any crap like trackers, ads, etc...