> Would anyone please tell me which of Linode, DigitalOcean and Vultr have cost ceilings? I looked at their pricing pages but couldn't figure out. They all claim that they have monthly billing caps for the hourly rates, but meanwhile, both DO and Vultr have per-GB charges if the transfer quota are exceeded, and Linode is silent on this on its pricing or FAQ pages. Can the data transfer charges be capped too? If so, what happens when the quota is reached?
They don't for traffic. So you do run a small risk of something happening.
However, Linode at least pools your VPSs so if you have 100 of them and 20 of them "go over" the cap you still are often okay because of the other 80 that didn't "go over".
The truth is none of these providers provide truly hard caps. The difference is with Amazon/Google/Azure/etc you can realistically get hit with a 4 figure bill if something goes seriously wrong.
DO/Linode/Vultr I've never seen accidental "mistakes" causing that sort of thing and even an active dos/ddos attack that would cost you more than $100 in overages before they started null routing you.