A list of the most recent health check results returned for the specified backend server.
The general health status of the specified backend server as reported by the primary and standby load balancers.
**OK:** Both health checks returned {@code OK}.
**WARNING:** One health check returned {@code OK} and one did not.
**CRITICAL:** Neither health check returned {@code OK}.
**UNKNOWN:** One or both health checks returned {@code UNKNOWN}, or the system was unable to retrieve metrics at this time.
The health status of the specified backend server as reported by the primary and standby load balancers.