Cloud hosting is currently the most reliable solution on the market. With cloud hosting, your host provides you with a cluster of servers — your files and resources are replicated on each server.
When one of the cloud servers is busy or encounters a problem, your traffic is automatically routed to another server in the cluster. This results in little to no downtime, which is excellent if you own a very busy website.
Little to no downtime
Server failures have no effect on your website
Allocates resources on demand
Pay-as-you-pricing strategy — you only pay for what you use
More scalable than other web hosting types
Hard to estimate the actual costs
Root access is not always provided