如何检查域可用性。 [英] How to check domain availability.

问题描述

最近，我被分配了一个任务来创建一个简单的网页，这将有助于任何人知道他/她想要注册的域名的可用性。



我在使用asp.net的.net平台上。对于此任务，我想使用 System.Net 命名空间，并在 WebResponse和WebRequest 类的帮助下，我可以知道注册了哪个域。但在那里我可以了解一下只运行网站。



但是，如果有人注册了他/她的域名并且还没有托管任何网站的话。使用这种方法无法追踪。



我正在寻找您宝贵的指导或建议或执行此任务的任何API。







谢谢。

Recently, I have been assigned a task to create a simple web page what will help anybody to know the availability of the domain name that he/she wants to register.

I am on a .net platform using asp.net. For this task,I thought to use System.Net namespace and with the help of WebResponse and WebRequest classes I can come to know which domain is registered. But there I can come to know about only running website.

But what, if someone has registered his/er domain and not host any website yet. That could not be trace using this method.

I am looking for your valuable guidance or suggestions or any API that performs this task.



Thanks.

推荐答案

public static string GetSubDomainID()
       {
           string domainID = HttpContext.Current.Request.Url.Host;
           if (domainID.Contains("/"))
               domainID = domainID.Substring(0, domainID.IndexOf("/"));
           if (domainID.ToLower().StartsWith("www."))//ignore www subdomain
               domainID = domainID.Substring(4);
           if (domainID.Contains("."))//Remove the last part i.e. organization e.g. .com / .net
               domainID = domainID.Substring(0, domainID.LastIndexOf("."));
           if (domainID.Contains("."))//Remove the second last part i.e. primary domain e.g. logisys
               domainID = domainID.Substring(0, domainID.LastIndexOf("."));
           if (domainID.Contains("."))//Get the first part
               domainID = domainID.Substring(0, domainID.IndexOf("."));
           return domainID;
       }

尝试使用此编码来检查域名可用性....



快乐编码：）

try this coding to check domain availability ....

Happy coding:)

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