被墙的域名怎么做301跳转，域名被墙查询源码

【被墙的域名怎么做301跳转，域名被墙查询源码】

当一个域名被墙时，访问该域名的用户将被重定向到另一个指定的域名，这种重定向操作可以通过设置301跳转来实现，下面将详细介绍如何进行301跳转以及查询域名是否被墙的源码。

301跳转的实现方式

301跳转是一种HTTP状态码，用于指示服务器将请求的资源永久移动到新的URL，当用户访问被墙的域名时，服务器可以返回301响应，将用户重定向到指定的域名。

1.1 在服务器端配置301跳转

如果拥有服务器的管理权限，可以在服务器配置文件中设置301跳转，以下是一些常见的服务器配置方法：

Apache服务器：在.htaccess文件中添加以下代码：

```apache

RewriteEngine on

RewriteCond %{HTTP_HOST} ^example.com [NC]

RewriteRule ^(.*)$ http://newdomain.com/$1 [L,R=301]

```

将example.com替换为被墙的域名，将newdomain.com替换为目标域名。

Nginx服务器：在nginx.conf文件中添加以下代码：

```nginx

server {

listen 80;

server_name example.com;

return 301 http://newdomain.com$request_uri;

}

```

将example.com替换为被墙的域名，将newdomain.com替换为目标域名。

1.2 使用第三方工具实现301跳转

如果没有服务器管理权限，可以使用第三方工具来实现301跳转，以下是一些常用的第三方工具：

Cloudflare：Cloudflare是一个CDN服务提供商，提供了免费的DNS解析和SSL证书服务，通过将域名解析到Cloudflare的服务器上，并启用其"Page Rules"功能，可以实现301跳转，具体步骤如下：

注册Cloudflare账号并添加要使用的域名。

进入"Crypto"页面，选择"Full"模式。

在"Page Rules"页面创建一个新的规则，选择"Always Use HTTPS"并设置目标URL为被墙域名的301跳转地址。

DNSPod：DNSPod是中国的一个DNS服务提供商，也提供了301跳转的功能，通过在DNSPod的管理控制台中设置URL转发，可以实现301跳转，具体步骤如下：

注册DNSPod账号并添加要使用的域名。

进入"URL转发"页面，创建一个新的URL转发记录，设置目标URL为被墙域名的301跳转地址。

查询域名是否被墙的源码

查询域名是否被墙可以通过发送HTTP请求来获取响应的状态码，以下是使用Python编写的查询域名是否被墙的源码示例：

import requests
def check_blocked(domain):
    try:
        response = requests.get("http://" + domain)
        return response.status_code == 200 or response.status_code == 302 or response.status_code == 404 or response.status_code == "503 Service Unavailable" or response.status_code == "522 Bad Gateway" or response.status_code == "524 Gateway Timeout" or response.status_code == "571 Service Unavailable" or response.status_code == "575 Requested Network Address Is Not Available" or response.status_code == "579 Insufficient Server Capacity" or response.status_code == "582 Server Error" or response.status_code == "583 Bad Request" or response.status_code == "653 Too Many Requests" or response.status_code == "654 Deadline Exceeded" or response.status_code == "999 Client Closed Request" or response.status_code == "Connection Refused" or response.status_code == "Connection Timed Out" or response.status_code == "Not Found" or response.status_code == "Service Unavailable" or response.status_code == "Too Many Requests" or response.status_code == "Unknown Error" or response.status_code == "Unsupported Media Type" or response.status_code == "Internal Server Error" or response.status_code == "Bad Request" or response.status_code == "Method Not Allowed" or response.status_code == "Not Allowed" or response.status_code == "Proxy Error" or response.status_code == "Request Timed Out" or response.status_code == "Gone" or response.status_code == "Length Required" or response.status_code == "Precondition Failed" or response.status_code == "Request Entity Too Large" or response.status_code == "RequestURI Too Long" or response.status_code == "Unsupported Media Type" or response.status_code == "Requested Range Not Satisfiable" or response.status_code == "Expectation Failed" or response.status_code == "Upgrade Required" or response.status_code == "Internal Server Error" or response.status_code == "Not Implemented" or response.status_code == "Bad Method" or response.status_code == "Not Allowed" or response.status_code == "Not Supported" or response.status_code == "Proxy Error" or response.status_code == "Temporary Error" or response.status_code == "Conflict" or response.status_code == "Length Required" or response.status_code == "RequestURI Too Long"
    return True if status in [200, 302, 404, "503 Service Unavailable", "522 Bad Gateway", "524 Gateway Timeout", "571 Service Unavailable", "575 Requested Network Address Is Not Available", "579 Insufficient Server Capacity", "582 Server Error", "583 Bad Request", "653 Too Many Requests", "654 Deadline Exceeded", "999 Client Closed Request", "Connection Refused", "Connection Timed Out", "Not Found", "Service Unavailable", "Too Many Requests", "Unknown Error", "Unsupported Media Type", "Internal Server Error", "Bad Request", "Method Not Allowed", "Not Allowed", "Proxy Error", "Request Timed Out", "Gone", "Length Required", "Precondition Failed", "Request Entity Too Large", "RequestURI Too Long", "Unsupported Media Type", "Requested Range Not Satisfiable", "Expectation Failed", "Upgrade Required", "Internal Server Error", "Not Implemented", "Bad Method", "Not Allowed", "Not Supported", "Proxy Error", "Temporary Error", "Conflict"] else False

上述代码使用requests库发送HTTP请求并检查响应状态码，如果状态码属于指定列表中的任何一个值，则认为该域名被墙，你可以根据需要修改状态码列表以适应不同的判断标准。

与本文相关的问题及解答

Q1: 如果我想使用JavaScript实现域名被墙查询，应该如何做？

A1: 你可以使用JavaScript的XMLHttpRequest对象或Fetch API来发送HTTP请求并获取响应状态码，以下是使用XMLHttpRequest对象的示例代码：

function checkBlocked(domain) {
    var xhr = new XMLHttpRequest();
    xhr.open('GET', 'http://' + domain, true);
    xhr.onreadystatechange = function() {
        if (xhr.readyState === 4) {
            if (xhr.status === 200 || xhr