It's back!
I do wonder how much they're paying in hosting fees. Sure, the requests are quite small ~ < 100 kb, but still, if you have 10k users "concurrently" (- more or less) refreshing the page with no advertising model... well.. I can only imagine that that adds up...?
I guess they probably use at least VPN, right? Usually, popular projects aren't hosted on shared hosting, even if the page is just lorem ipsum text.
They use herokuapp for their hosting. I'm not exactly sure what their plans are, but i think that bandwith is the most pressing "resource". It could be that they offer unlimited plans, in which case hosting something like preev really doesn't need to be expensive, but i can't find any source on their bandwith plans. [maybe related:
https://devcenter.heroku.com/articles/limits#network]
It may be a little bit offtopic but why is the preev so popular? Personally, I have used it almost every time during exchange cause everyone asks for preev rate. Is the data of website the reason of it? It's pretty old.
Not sure. I like it because it loads fast, has no ads / is kind my eyes, and is fairly accurate price-wise.
And why does this website exist without monetization? Just a honour from the author? Then that's great!
Perhaps there's some data-collecting on the side
, but other than that, I assume so.