If you ever had a website, you would have come across shared hosting providers. These come cheap, offer a lot of features and are good for a start.  But as soon as the website grows, you can start to expect a lot of problems that may be related to the bandwidth and may lead to slow response times. It is because many websites are hosted on the same server. In this hosting getting adequate technical support is also a challenge. You may be left in the lurch if the technical assistance provided is not so good and there may be lack of WordPress specialists as well and even if one is there are hundreds of other websites on the same server. But due to rock-bottom prices, it is good for those who don’t want to spend too much right at the start. So if you have a bogging site or then such affordable hosting is a good choice. 

VPS hosting is a server with its copy of the operating system, and the allocated server resources within the big server.  In this hosting, every website is hosted on a virtual private server on a more powerful hardware. Usually, a physical machine is divided into several virtual machines, and the server software is set-up on-them separately which make them work as independent units. Although there may be other websites on the same physical system, your website will be hosted on your virtual server. You’ll have the complete access to your server as if it were your dedicated server. 

Having a dedicated server is almost same as VPS, in this hosting; you don’t share computing resources with other virtualized servers. If you have a website that attracts a large number of visitors per day, dedicated hosting is meant for you. Besides being slightly expensive, you may deal with occasional hardware failures.