Description: Service availability refers to the degree to which a service is operational and accessible when required. In the context of cloud services and Content Delivery Networks (CDNs), this availability is crucial as it determines users’ ability to access digital content quickly and efficiently. High availability means that the service is operational most of the time, minimizing interruptions and ensuring that users can access resources without issues. Service providers achieve this by replicating content across multiple geographically distributed servers, allowing user requests to be handled by the nearest server. This not only improves loading speed but also reduces the load on a single server, contributing to greater stability and resilience of the service. Service availability is often measured in percentage terms, where 99.9% availability means the service can be offline for a maximum of about 8.76 hours per year. In a world where user experience is paramount, service availability becomes a key factor for customer satisfaction and brand reputation.
