SMAN 9 Mandau has provided website to improved quality of information dissemination. Evaluation of the SMAN 9 Mandau website needs to be done, especially from the aspect of user convenience. The purpose of this study was to measured the level of user satisfaction on SMAN 9 Mandau Website using System Usability Scale (SUS) method. This method has 10 items and has 5 Likert scales. SMAN 9 Man…