Virtual private server (VPS) hosting is a type of web hosting that uses software to emulate multiple servers on a single virtual host. Even though the websites are hosted on the same physical machine, VPS hosting allows each server to be entirely independent, treating them as if each site were on its own separate machine. One advantage of VPS is that it fits in well with other hosting plans. A virtual hosting plan gives clients another hosting option that fits between most shared hosting and dedicated hosting pans.
A VPS runs its own copy of an operating system (OS), and customers may have superuser-level access to that operating system instance, so they can install almost any software that runs on that OS. For many purposes they are functionally equivalent to a dedicated physical server, and being software-defined, are able to be much more easily created and configured. They are priced much lower than an equivalent physical server. However, as they share the underlying physical hardware with other VPSes, performance may be lower, depending on the workload of any other executing virtual machines.