Re:Firefox 57 delays requests to tracking domains
by tedmiston on Wednesday December 20, 2017 @12:52AM
(#15967355)
I think "load" here is subjective as well eg a spectrum from time to first paint and a page being visible and/or interactive, up until completely loading all async and deferred content, some of which might only happen after the user crosses the fold.
I think there's a lot of interest in optimizing that initial time but less so for the full load.
They absolutely do care, though. The longer a page takes to load, the less time users will spend on the site, and the more likely users will give up and close the window.