Tarombo Simanjuntak Sitolu Sada Ina is a digital genealogy platform dedicated to helping people explore and document the family lineage of the Simanjuntak clan. It focuses on the three main branches—Mardaup, Sitombuk, and Hutabulu—and presents family connections across generations, including relationships among children, parents, grandparents, siblings, and descendants. Visitors can search for an ancestor, parent, or grandparent, select a matching name, and follow the available lineage information to better understand their family connections.

Registered users can contribute to the family record by adding relatives and extending the genealogy to subsequent generations. The platform is accessible through computers and mobile devices, with Android and iOS apps also promoted on the site. It provides registration guidance and video tutorials to help users get started.

The digital lineage draws in part on the 1965 Simanjuntak genealogy book, while inviting families to contribute information that can help connect later generations and make the shared family history easier to explore