Malwarebytes scans the IP and the URL you want to visit and then takes action based on what has been reported before. In 90 % of the cases its blocking modules are effective against deceiving websites, however, since the application doesn't feature an Exclusion list, you will have to disable the module completely. To do this while Malwarebytes is running, right click the icon in the system tray and uncheck Web Protection. This will disable the module allowing you to visit the website that has been blocked.