There are many statistics that Rebrickable tracks and shows you about your MOCs.
Access via Account > MOC Analytics. See charts with your views/likes/downloads/sales/timeline builds/day for each of your MOCs, plus your follows/unfollows and total daily ranking (i.e. where you sit compared with all the other Rebrickable Designers).
You can also see exactly who has Liked your MOCs and Followed your account by clicking the number on any of your MOCs.