MTTR`, or Mean Time to Repair/Restore/Resolve, is a critical performance metric that quantifies the average time required to fix a failed system/component, or to restore a service after a disruption. It's a key indicator of an organization's ability to respond to and resolve issues, as well as its maintenance and repair processes' effectiveness. By examining MTTR, companies can identify operational bottlenecks, optimize their response plans, and ultimately improve overall service reliability. Reducing MTTR is crucial in industries where uptime is critical, such as finance, e-commerce, and telecommunications, as it directly impacts operational efficiency, customer satisfaction, and financial health. To measure MTTR, organizations divide the total time spent on unscheduled maintenance by the total number of failures during a certain period. By implementing standard incident management processes, improving skills and knowledge exchange, cultivating strategic vendor and partner collaborations, and using proactive monitoring and alerting tools like Checkly's parallel scheduling, organizations can systematically reduce MTTR and enhance their resilience and service quality.