The majority of websites are on shared hosts or servers this means that other people’s websites files are also kept at this location.
Dedicated web hosting
Dedicated web hosting means you are renting the entire computer or server on which your website lives. No one else’s files are on that server. This is more flexible as you have complete control over the setup of the server. It can also be faster and more secure, it is most often used by larger companies or those with large websites.
This is a virtual server which is made up of many physical web servers. If one fails, there is another to take its place which means it is more reliable than standalone servers and should have no down time. They also scale automatically to handle increased traffic.