1、从网站建设所使用域名的解析、绑定方面查原因。
是否域名A记录解析指向了您网站所在的服务器或网站虚拟空间上，请注意网站域名的A记录解析往往或有两条，一条是一级域名的解析，另一条是www二级域名的解析，如果一级域名和www二级域名您都需要用来访问网站，那么都要保证这两天解析记录的IP都指向了您网站建设所处的网站空间上。
如果经查看您的域名解析设置的没有问题，那么您就需要查看一下网站空间的控制面板或服务器的IIS设置，是否将空间或IIS站点的域名绑定设置正确。相对应域名解析，如果要保证将一级域名和www二级域名都能正常的访问网站，那么域名绑定也一样需要对应添加两条绑定记录。
如果您对域名解析或域名绑定的具体操作不明白可以咨询加网客服人员帮您处理，在加网购买空间或域名这些操作都是免费服务的项目。
1, from the site of the construction of the use of domain name resolution, binding to check the reasons.
Whether domain name A record resolution point to your web server or site virtual space, please pay attention to the site domain name A record resolution often or have two, one is a domain name resolution, the other is the WWW two level domain name, if you need to use a domain name and WWW two domain name you need to visit the site, then you want to ensure that the two days of the IP.
If you have no problem with your domain name resolution, you need to check the IIS settings for the control panel or the server in the site space, whether the space or IIS site's domain name binding is set correctly. Relative to the domain name resolution, if you want to ensure that the level of domain name and WWW two domain name can be normal access to the site, then the domain name binding is also the same as the need to add two binding record.
If you do not understand the specific operation of domain name resolution or domain name can not understand the customer service staff to help you deal with, in addition to buy space or domain name these operations are free services.
