Purpose – Mosque websites increasingly serve as public digital service platforms for information dissemination, administrative services, donations, and community engagement. However, previous studies have mainly focused on system development, functionality, and usability, while integrated evaluations of technical performance and externally observable security remain limited. This study evaluates the performance and basic security posture of selected Indonesian mosque websites through a multidimensional technical audit framework. Design/methods/approach – A quantitative non-invasive comparative design was applied to seven purposively selected operational mosque websites. Data were collected through repeated Google Lighthouse measurements, PageSpeed Insights field data, Core Web Vitals analysis, HTTP security-header evaluation, and Transport Layer Security (TLS) assessment. The framework considers performance, user experience indicators, browser-level security controls, and transport security as complementary dimensions. Findings – Desktop performance was significantly better than mobile performance, particularly in loading-related metrics, while Accessibility, Best Practices, and Search Engine Optimization (SEO) remained relatively consistent across devices. Security evaluation revealed uneven browser-level security implementation, showing that header presence does not always indicate effective configuration. TLS protection was generally stronger than browser-level controls. Research implications/limitations – The findings demonstrate the importance of multidimensional website assessment. However, the study is limited to seven purposively selected websites concentrated in Java and represents comparative case evidence rather than national assessment. Originality/value – This study contributes an integrated evaluation framework combining performance, user experience, HTTP security configuration, and TLS assessment for mosque websites.
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