From the Repsheet Github repo:
Repsheet is a collection of tools to help improve awareness of robots and bad actors visiting your web applications. It is primarily an Apache web
server module with a couple of addons that help organize and aggregate the data that it collects.Repsheet attempts to solve the problem of automated defenses against robots and noisy attackers. It collects and records activity of the IP
addresses that access your web sites and helps determine if they are misbehaving. If they are, they are put on the Repsheet. Once there, you can
choose to outright deny them access to your site or warn your downstream applications that the requestor is a known bad actor and that the request
should be handled differently. Essentially, it is a local reputation engine.