<![CDATA[The rapid growth of internet technology has made access to information easier, but has also opened opportunities for misuse, such as access to online gambling sites and pornographic content through personal mobile phones and laptops. This study aims to implement and evaluate a third-party DNS filtering service integrated with a third-party Android-based monitoring application, configured as an end-user content monitoring and blocking system for such content. The method used is experimental with a modified Network Development Life Cycle (NDLC) approach, covering requirements analysis, system architecture design, DNS filtering configuration, and black box functionality testing. Testing was carried out on domains identified as online gambling sites and adult content to measure blocking effectiveness, response time, and internet connection stability. Results show that the implemented DNS filtering system successfully blocked access to prohibited domains with a high success rate, without significantly affecting internet speed for legitimate domains. The Android-based monitoring application was also able to record and display real-time access logs, although the push notification feature did not function consistently. It is concluded that the integration of DNS filtering and an Android monitoring application is a promising supplementary end-user level cybersecurity solution for restricting access to negative content on personal devices.]]>
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