Background: Indonesia's religious diversity increasingly unfolds within algorithmic public spaces where interfaith dialogue, moderation campaigns, minority testimony, religious hoaxes, and legal-moral disputes circulate through official websites, YouTube, podcasts, and social media. Objective: This study examines how interfaith talk constructs religious diversity in Indonesia by asking how representation frames, pragmatic stances, and platform visibility regimes organize public meanings of coexistence, conflict, and recognition. Method: This study applies corpus-assisted qualitative discourse analysis to 20 publicly verifiable corpus items, combining lexical-semantic mapping, pragmatic-stance coding, and platform-visibility analysis across primary, secondary, and contextual data. Results: Findings show that moderation-governance discourse dominates this corpus, indicating that religious diversity is frequently framed as civic responsibility, institutional order, and public stability. Dialogic-convivial and conflict-risk frames appear alongside this pattern, revealing that harmony language coexists with concern over polarization, hoaxes, interfaith marriage disputes, and minority vulnerability. Platform visibility is unevenly distributed, with institutional-authoritative discourse gaining prominence while counterpublic and influencer-mediated interfaith voices depend on platform narration, testimony, and searchable controversy. Implication: This study suggests that Indonesian interfaith communication should be understood not only as normative tolerance but as patterned digital publicness shaped by authority, stance, visibility, and contestability. Novelty: This study offers an integrated framework that connects interfaith dialogue, corpus-assisted discourse analysis, pragmatic stance, and algorithmic public sphere theory in Indonesian religious-diversity research