The study was to probe into the Web-based learning activities influencing student performance based on instructors’ design for instructional activities Web-based learning environments. Participants of study were students who had taken part in a Web-based course. The 150 participants conducted the survey. Each participant completed a quantitative and qualitative survey. A quantitative research design was used in the study method. The study employed comparative and descriptive. Collected survey data were analyzed using descriptive and comparative statistics. The analysis of the study was to explore the demographic information and the relationship between learning activities and student performance. According to the results of the data analysis, the results in the study include: proof that Web-based learning activities including discussion board, individual assignment, and chat room activities most influenced student performance. The results provide new viewpoints and opinions for Web-based instructors when designing or developing Web-based learning activities and course materials for more suitable ways and pedagogies in order to assist learners who learn in enhanced Web-based learning environments.