1. Ali Tencent inside or ip application domain; as baidu.com
2. After the application, in resolving the domain name. Plus two domain names the domain name specified in the foregoing, the server parses the background, such as can be added to the plurality of secondary domain fanyi.baidu.com, www.baidu.com; img.baidu.com
3. Once configured secondary domain name, and then build the site, the domain name to the project root directory entry file