When logged in as a contributor or admin, Aat the top of the Edit File Info panel you will see LightRocket's unique visibility meter:
The visibility meter is designed to serve as a indicator of how easy a file will be to find in your archive. The meter is linked to the 'basic' recommended 'file info' fields that you will see on the 'Edit File Info' panel.
The more recommended fields you complete on the 'Edit File Info' panel, the better your visibility indicator will be. LightRocket recommends at least 5 file info fields be completed namely: captions, keywords, country/location, date, credit/copyright.