PurposeWith the prevailing use of online communication platforms, this study revisits the definitions of trust in an online context. By exploring organizational online communications from a practitioners' perspective, a conceptual framework that illustrates the nature of trust and its relationship with dialogic communication between organizations and organizations' stakeholders in the digital era is proposed.Design/methodology/approachA total of 27 in-depth interviews were conducted with public relations and marketing practitioners involved in coordinating organizational online communications in Hong Kong.FindingsFrom the practitioners' perspective, stakeholders' online trust toward an organization, which is a hybridity of initial and rapidly evolving trust, begins with stakeholders swift and initial judgment of the organization according to category-based cues (including knowledge-based attributes of the organization, institutional cues, and particular attributes of online dialogic communication) available on online platforms and further develops over time. Practitioners regard the integration of online and offline communication platforms to be the most effective way to build trust in organization–stakeholder relationships in the digital era, while dialectical tensions can hinder trust formed in online communication.Originality/valueAlong with the proposed conceptual framework, this study advances the discussion of online trust in public relations practices from the practitioners' perspective. A qualitative approach provides rich descriptions that may help to enrich theories in public relations and communication management regarding the interplay of trust and dialogic communication in organizational practices in the digital era.