HN is lightweight in some ways, but also quite bad in others. For example, every single time you vote on anything, the site sends back a 302 redirect and then a copy of the entire page's HTML in response. This means that every vote results in a response that's usually around 10KB gzipped. As of right now, for me, voting on any comment in this thread currently causes a 14KB response and takes about 1.3 seconds to fini…
This means that every vote results in a response that's usually around 10KB gzipped I have Facebook open in another window and opened the network inspector to compare it: Just moving the mouse towards the like button created 824KB of data transfer. Not sure if it is because of tracking the mouse movement or if it preloads stuff it thinks my mouse is moving towards. Or maybe it loads stuff that it would display if I h…
Facebook is a very different site, and could be lazy loading anything, and do you know the mouse move was causal? was there a window.setTimeout initiating it?. Facebook is not a site i'd expect to use on a low bandwidth connection, or if I did I'd use a low bandwidth version if possible (like Gmail has a HTML only version).