This study aims to show the significance of a robust digital identity for researchers and examines the role that online platforms play in enhancing their research outputs. The study explores the digital identity of social science researchers at Taiwanese universities and evaluates the effect it has on promoting their research. To achieve that goal, we analyzed the researchers’ profiles on four platforms: Google Scholar, Research Gate, ORCID, and Twitter. The methodology used is a mixed-methods approach that combines qualitative and quantitative data collection and analysis techniques depending on measures or identity types: introduction, activity, and statistic. The findings indicate that having a strong digital identity, demonstrated by a high number of well-maintained online profiles, significantly enhances the promotion of the researchers' outputs and that the existence of the three types of digital identity on the platforms vary depending on the features of each platform.