In recent years, many people have devoted their efforts to the issue of quality of Web site. The concept of quality is consisting of many criteria: quality of service perspective, a user perspective, a content perspective or indeed a usability perspective. Because of its possible instant worldwide audience a Website's quality and reliability are crucial. The very special nature of the Web applications and Websites pose unique software testing challenges. Webmasters, Web applications developers, and Website quality assurance managers need tools and methods that can match up to the new needs. This research conducts some tests to measure the quality of e government web site of five Asian countries via web diagnostic tools online. The result of this study confirmed that the Egovernment websites of Asian are neglecting performance and quality criteria. © 2009 IEEE.