DNS QUERY VISUALIZER - An Interactive Learning Tool for Understanding DNS Resolution

Understanding the Domain Name System (DNS) is essential for both networking education and practical applications. This paper presents “DNS Query Visualizer”, an interactive web-based tool designed to teach DNS concepts through visualization and simulation. The tool allows users to explore DNS resolution processes, including Root, TLD, and Authoritative server interactions, as well as different record types such as A, CNAME, MX, and PTR. By integrating visual diagrams, real-time query simulations, and an interactive quiz module, the platform enhances comprehension of hierarchical DNS architecture and query mechanisms. The system is implemented using Python, Streamlit, and D3.js, providing an accessible and engaging learning environment for students and professionals alike. Experimental demonstration shows that the tool effectively bridges theoretical knowledge with practical understanding, making DNS concepts easier to grasp.