<p><em>The Test-Based National Selection is one of the selections carried out jointly to enter State Universities. In this technological era, many high school have used online tutoring platforms to prepare for the SNBT exam. One of them is the tutoring platform SaintekFocuss which focuses on SNBT material. However, not all SNBT SaintekFocuss class participants have experience in doing good learning because there is no website that can make it easier for participants to carry out the teaching and learning process and try out exams. This study aims to improve and improve the learning experience of SNBT class participants based on the information needed by SaintekFocuses class participants. With these conditions, it is necessary to improve the flow of the teaching and learning process and try out exams by designing a website-based prototype based on the information needed by SaintekFocuses class participants. The output of designing a website interface in the form of a prototype website using a double diamond approach. Double diamond was chosen because of a research process that focuses on finding innovative solutions to existing problems using four stages, namely the discover, define, develop, and deliver stages. The prototype testing stage using usability testing gets a better average value in terms of Attractiveness, Perspicuity, Efficiency, Dependability, Stimulation, Novelty. The value obtained after conducting a usability test is 0.14 with excellent status. From the results of the prototype design, it can be further implemented on the SNBT learning website to provide a better user experience in the teaching and learning process.&nbsp;&nbsp; </em></p>