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Response headers
Request headers
Raw HTML code
301 Moved Permanently - 9cdc.com
HTTP Status: 301
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Server: nginx
Date: Fri, 02 May 2025 22:18:21 GMT
Content-Type: text/html
Content-Length: 162
Connection: keep-alive
Location: https://9cdc.com/

HTTP Code 301 Moved Permanently

301 response code means that the requested resource has been permanently moved to a new URL. All future requests should use the new address.

When is Code 301 used?

  • When changing a website domain
  • When modifying URL structures
  • When setting up redirects for SEO

What does Code 301 mean for the user?

The browser will automatically redirect the user to the new address, and search engines will update their indexes.

200 OK - https://9cdc.com/
HTTP Status: 200
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Server: nginx
Date: Fri, 02 May 2025 22:18:22 GMT
Content-Type: text/html; charset=UTF-8
Content-Length: 791
Connection: keep-alive
Last-Modified: Wed, 03 Feb 2021 10:00:18 GMT
ETag: "601a7432-317"
Accept-Ranges: bytes

HTTP Code 200 OK

200 response code is a standard successful HTTP server response. It means that the client’s request (e.g., from a browser) was successfully processed, and the server is delivering the requested data.

When is Code 200 used?

  • When loading a web page
  • When successfully receiving an API response
  • When processing a form or another HTTP request

What does Code 200 mean for the user?

The user receives content without errors, and the page or application functions properly. If Code 200 is accompanied by data, the browser or program processes and displays it to the user.

GET / HTTP/1.1
Host: 9cdc.com
Accept: */*
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])

<!DOCTYPE html>
<html>
  <head>
    <title>404 Not Found</title>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width" />
    <style>
      body {
        font-family: sans-serif;
        line-height: 1.6;
      }
      .main {
        max-width: 30em;
        margin: 3em auto;
        font-size: 13px;
      }
      a,
      a:link,
      a:active,
      a:visited {
        color: #2a85b3;
        text-decoration: none;
      }
    </style>
  </head>
  <body>
    <div class="main">
      <h2>Not Found</h2>
      <p>
        The requested URL was not found on this server.<br />
        抱歉，资源未能有效定位，请确认
      </p>
      <p>访问 <a href="https://www.9cdc.com" target="_self">玖诚数集</a></p>
    </div>
  </body>
</html>

Whois info of domain

Domain Name: 9CDC.COM
Registry Domain ID: 2107976210_DOMAIN_COM-VRSN
Registrar WHOIS Server: grs-whois.hichina.com
Registrar URL: http://wanwang.aliyun.com
Updated Date: 2024-11-18T10:34:44Z
Creation Date: 2017-03-25T14:03:05Z
Registry Expiry Date: 2027-03-25T14:03:05Z
Registrar: Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)
Registrar IANA ID: 1599
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +86.95187
Domain Status: ok https://icann.org/epp#ok
Name Server: NS1.HE.NET
Name Server: NS2.HE.NET
Name Server: NS3.HE.NET
Name Server: NS4.HE.NET
Name Server: NS5.HE.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-02T22:18:12Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
NOTICE: The expiration date displayed in this record is the date the
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