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301 Moved Permanently - 51cod.com
HTTP Status: 301
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Location: https://www.51cod.cn/
Content-Length: 0
X-NWS-LOG-UUID: 14316879444171145960
Connection: keep-alive
Server: SLT
Date: Sat, 03 May 2025 14:00:38 GMT
X-Cache-Lookup: Return Directly

HTTP Code 301 Moved Permanently

301 Moved Permanently 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.

403 Forbidden - http://www.51cod.cn
HTTP Status: 403
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
server: openresty
date: Sat, 03 May 2025 14:00:40 GMT
content-type: text/html
vary: Accept-Encoding
ce-waf-wlf: CE-WAF-PROACTIVE-UA
etag: "67f48657-34f"
X-Cache-Lookup: Cache Miss
Content-Length: 847
X-NWS-LOG-UUID: 7831584716005032258
Connection: keep-alive
X-Cache-Lookup: Cache Miss

HTTP Code 403 Forbidden

403 Forbidden indicates that access to the requested resource is denied, even with authentication.

When is Code 403 used?

  • When accessing restricted content without necessary permissions
  • When security rules block a request
  • When an IP address is banned

What does Code 403 mean for the user?

The user is informed that they do not have permission to access the resource.

GET / HTTP/1.1
Host: 51cod.com
Accept: */*
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="robots" content="noindex">
    <title>异常访问</title>
    <style>
        body {
            font-family: 'Arial', sans-serif;
            background-color: #f5f5f5;
            color: #333;
            text-align: center;
            padding: 50px;
            margin: 0;
        }

        h1 {
            color: #d9534f;
        }

        p {
            margin-bottom: 20px;
            font-size: 18px;
        }
    </style>
</head>
<body>
    <div>
        <h1>403 Forbidden</h1>
        <p>Sorry, you do not have permission to access this resource.</p>
        <p>由于您的行为异常，您暂时无法访问该页面，请稍后再试。</p>
    </div>
</body>
</html>

Whois info of domain

Domain Name: 51COD.COM
Registry Domain ID: 2274780310_DOMAIN_COM-VRSN
Registrar WHOIS Server: grs-whois.hichina.com
Registrar URL: http://wanwang.aliyun.com
Updated Date: 2023-10-15T01:09:35Z
Creation Date: 2018-06-13T19:02:01Z
Registry Expiry Date: 2028-06-13T19:02:01Z
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: DNS10.HICHINA.COM
Name Server: DNS9.HICHINA.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-03T14:00:27Z <<<
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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