Most of the reliable web hosting service providers like Manashosting assure their clients high hosting uptime, which refers to the percentage of time the host is available for access via the Internet. There are many web hosts who claim to offer up to 99.9% uptime, which is almost equivalent to 45 minutes of downtime a month or less. However, server restarts or disturbances in the planned or unplanned web hosting maintenance could reduce the promised official hosting uptime.