Ancestry.com, a genealogy database is the biggest private, for-profit genealogy database company. Ancestry support is available online and users can access by buying their different memberships. It allows users to make digital family trees and trace their heritage, lineage, ethnicity, DNA, etc. user get “hints” about others who may be part of their family based on the database. Some features of Ancestry.com require a paid membership, but some features are available for free.