. The wide availability of affordable smartphone and tablet in the market leads to the increase of internet access using mobile devices. Some users have started to leave desktop devices and are now using mobile devices. Some decide to use mobile device, some are still using desktop device, while some others are using both. This study aims to analyze the differences in the users' behaviours when visiting a website in a desktop and mobile version. The aspects of the user behaviour studied are page view/visit, time on site, bounce rate, and registration ratio. The data are taken and saved by Google Analytics and database website which are analyzed by using descriptive statistic and ANOVA. The result shows that the desktop version has high value in those previously mentioned aspects compared to the mobile version.