Types of Internet hosting service Full-featured hosting services Virtual private server Dedicated hosting Colocation centre Web hosting Free hosting Shared hosting Clustered hosting Reseller hosting Application-specific Blog hosting Guild hosting Image hosting Video hosting Wiki farms File hosting Remote backup service Game server hosting DNS hosting E-mail hosting An example of "rack mounted" servers. A web hosting service is a type of Internet hosting service that allows individuals and organizations to provide their own websites 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 any hosting environment. A common claim from the popular hosting providers is '99% or 99.9% server uptime' but this often refers only to a server being powered on and doesn't account for network downtime. Real downtime can potentially be larger than the percentage guaranteed by the provider. Many providers tie uptime, and accessibility, into their own Service Level Agreement, or SLA. SLAs may or may not include