Checkly has introduced parallel scheduling as a new way to schedule checks, allowing users to reduce mean time to detection, provide better insights into outages, and improve accuracy in performance trends. This feature is particularly useful for global services that need to be monitored from multiple locations, enabling immediate insight into the scope of an outage and reducing the risk of missing regional outages. Parallel scheduling can significantly affect costs, with excessive usage potentially increasing total usage above budget. It's recommended to use parallel scheduling for critical services and flows where downtime costs money and user happiness is at stake, while using round-robin scheduling for less critical monitoring where some downtime can be accepted.