Description: An active health check is a feature in AWS Route 53 that monitors the health of resources, such as web servers and applications, ensuring they are available and functioning correctly. This feature allows system administrators and developers to detect issues before they affect end users. The active health check periodically sends requests to the configured resources, evaluating their response and status. If a resource does not respond or returns an error state, Route 53 can automatically redirect traffic to an alternative resource that is operational, thus ensuring service continuity. This functionality is essential for maintaining high availability and resilience of cloud applications, as it allows organizations to react quickly to failures and minimize downtime. Additionally, active health checks can be customized to fit different types of resources and protocols, making it a versatile tool in cloud infrastructure management.
