uptime
n. uncountablen. the amount of time a computer, machine, or website is working and available to use. It is usually shown as a percentage.
n. the period during which a computer system, network, or piece of machinery is operational and available for use. Often expressed as a percentage of total time to measure reliability.
The server has had 100% uptime this month.
Cloud service providers often guarantee a specific level of uptime in their contracts to reassure business clients.
While scheduled maintenance is necessary for security, excessive downtime can lead to significant revenue loss, making high uptime a critical metric for any e-commerce platform.
Typically used in technical or business contexts; often contrasted with 'downtime'.
Last updated July 22, 2026