Abstract: In this study, we investigate the usability aspects of the website interface design by introducing the design and implementation of a system named Web Interface Evaluation (WIE). This system evaluates the web interface through a study on a number of web interface features about 55 features extracted from different HTML web pages, English and Arabic ones and then classify these pages to high, middle, low quality, this is done by the comparison of the extracted features with threshold values. These threshold values were extracted based on an extensive survey of design, recommendations from recognized experts and usability studies.