check web redirect url status code checker

Check server response of

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NS records
Whois domain
Response headers
Request headers
Raw HTML code
403 Forbidden - sdpus.com
HTTP Status: 403
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Server: Beaver
Cache-Control: no-cache
Content-Type: text/html
Content-Length: 635
Connection: close

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: sdpus.com
Accept: */*
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])

<html>
<head>
<meta http-equiv="Content-Type" content="textml;charset=UTF-8" />
   <style>body{background-color:#FFFFFF}</style> 
<title>Non-compliance ICP Filing</title>
  <script language="javascript" type="text/javascript">
         window.onload = function () { 
           document.getElementById("mainFrame").src= "http://batit.aliyun.com/alww.html?id=00000000004396756796"; 
            }
</script>   
</head>
  <body>
    <iframe style="width:860px; height:500px;position:absolute;margin-left:-430px;margin-top:-250px;top:50%;left:50%;" id="mainFrame" src="" frameborder="0" scrolling="no"></iframe>
    </body>
      </html>

Whois info of domain

Domain Name: SDPUS.COM
Registry Domain ID: 2747610025_DOMAIN_COM-VRSN
Registrar WHOIS Server: grs-whois.hichina.com
Registrar URL: http://wanwang.aliyun.com
Updated Date: 2024-12-19T13:59:35Z
Creation Date: 2022-12-28T12:02:39Z
Registry Expiry Date: 2025-12-28T12:02:39Z
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: DNS29.HICHINA.COM
Name Server: DNS30.HICHINA.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-09T03:06:32Z <<<
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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