Types of Internet hosting service that allows individuals and organizations to provide their own websites accessible via the World Wide Web. Web hosts are companies that provide space on a server they own for use by their clients as well as providing Internet connectivity, typically in a data center. Webhosts can also provide data center space and connectivity to the Internet for servers they do not own to be located in their data center, called colocation. Contents 1 Service scope 2 Hosting reliability and uptime Multiple racks of servers, and how a datacenter commonly looks. Hosting uptime refers to the percentage of time the host is accessible via the World Wide Web. Web hosts are companies that provide space on a server they own for use by their clients as well as providing Internet connectivity, typically in a data center. Webhosts can also provide data center space and connectivity to the Internet for servers they do not own to be located in their data center, called colocation. Contents 1 Service scope 2 Hosting reliability and uptime Multiple racks of servers, and how a datacenter commonly looks. Hosting uptime refers to the percentage of time the host is accessible via the World Wide Web. Web hosts are companies that provide space on a server they own for use by their clients as well as providing Internet connectivity, typically in a data center. Webhosts can also provide data center space and connectivity to the Internet for servers they do not own to be located in their data center, called colocation. Contents 1 Service scope 2 Hosting reliability and uptime Multiple racks of servers, and how a datacenter commonly looks. Hosting uptime refers to the percentage of time the host is accessible via the internet. Many providers state that they aim for a 99.9% uptime, but there may be server restarts and planned (or unplanned) maintenance in