I have a number of sites hosted in the cloud these days:
And one that was also built using Mathematica and notebooks but hosted on GitHub:
Now a thing to notice about those first three is that beyond their being embarrassingly slow to load, the URLs are also incredibly ugly. The .github.io isn't attractive, to be sure, but it's a pretty small insertion relative to: www.wolframcloud.com/objects. I mean, at least the organization (paclets) that creates the website is the first thing people see in the GitHub URL.
Is there a way to get a less ugly URL? It's uncomfortable to have to send people to a URL that's so opaque it looks suspicious. I could always buy my own domain, but if the major benefit of the cloud is that it's programmable, why should I have to leave Mathematica to make it not look like I'm trying to steal people's personal info when I'm just trying to send them to my tutorial?
Related note, developer+ subscriptions allow "customizable URLs" whatever that means http://www.wolfram.com/development-platform/pricing/
That's a bad sign... it shouldn't require 3 Netflix subscriptions to be able to change https://www.wolframcloud.com/objects/b3m2a1/home to https://b3m2a1.wolframcloud.io/home or whatever