Tracking health of component in a computer system is disclosed. A health score for software components is determined for each of a plurality of time periods. The computing system determines a problem software component whose health score indicates the unhealthy status at a certain point in time. The computing system determines a set of software components that are linked by dependency relationships to the problem software component. The computing system tracks events at which software components in the set have a health score that went from the healthy status to the unhealthy status. The computing system rolls back in time through the events to locate a software component in the set that was first in time to have its health score go from the healthy status to the unhealthy status.