Recently, HeinOnline added a metric to Author Profile Page citation data: Self-Citations. This metric counts the cumulative number of times that an author has cited his or her own work. It is not factored into the overall ScholarCheck ranking analysis, nor does it affect the overall citation count.
The concept of self-citation has been discussed for some time. This Scholarly Kitchen post, Do We Need a Self-Citation Index? inspired the development and addition of this metric to HeinOnline’s citation data.