ClearCloud will check every web address your computer is trying to access – when you’re browsing the internet, clicking a link in an email, or a program trying to access the internet for update – and blocks if a malicious activity found. Even if your computer is protected by a powerful antivirus software, ClearCloud still be useful to protect your computer from an unexpected virus or malware attack. If you’re interested you can replace your current DNS Server to: Preferred DNS server: 74.118.212.1 Alternate DNS server: 74.118.212.2 If you don’t know how to change your DNS Server on your Windows (XP/Vista/7), Mac OSX, and Routers, just enters here for details.And finally, to check whether the ClearCloud working properly on your computer, just try any of these two addresses on your browser: test.ssdsandbox.net or clearcloudtest.ssdsandbox.net , if not you will get as shown above screenshot. [Thanks to JkwebTalks]