Correct. Static file serving is amazingly efficient. Even the filesystem caches for you automagically with whatever RAM you're not using. There's even a kernel

Correct. Static file serving is amazingly efficient. Even the filesystem caches for you automagically with whatever RAM you're not using. There's even a kernel function for speeding up file transfers, that's how optimized this stuff is: http://man7.org/linux/man-pages/man2/sendfile.2.html http://man7.org/linux/man-pages/man2/sendfile.2.html My rough estimates are that Neocities can handle 20-50 million sites with only two fileservers and a sharding strategy. So double it for each shard, and you've got a solution that actually scales pretty well.