If the health index documents are turned off, what will happen to the percentage of highly ranked documents served?

When the health index documents are turned off, it results in the system relying solely on the content of the documents rather than their health or quality ranking. In this scenario, if the percentage of highly ranked documents served is set to a robust threshold, turning off the health index can lead to an increase in the perceived quality or ranking of the documents presented. This mechanism can cause an adjustment in how documents are scored, allowing the system to potentially serve previously lower-ranked documents that meet the criteria for display.

As a result, the system might readjust its output to maximize the quality metrics, potentially increasing the percentage of highly ranked documents served to 100%. This is an important dynamic where the reliance on strictly health-indexed measures is removed, and the overall diversity and quantity of documents presented can enhance the perception of quality. In such a context, the interplay between document health and ranking can lead to an overall increase in the quality of documents served when those health checks are disabled.