check web redirect url status code checker

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Response headers
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403 Forbidden - nil9.com
HTTP Status: 403
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Content-Type: text/html; charset=utf-8
Server: ADM/2.1.1
Connection: close
Content-Length: 519

HTTP Code 403 Forbidden

403 status code 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: nil9.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=GB2312" />
		<style>body{background-color:#FFFFFF}</style> 
		<title>非法阻断765</title>
		<script language="javascript" type="text/javascript">
         window.onload = function () { 
           document.getElementById("mainFrame").src= "http://114.115.192.246:9080/error.html";
            }
		</script>   
	</head>
	<body>
	
		<iframe style="width:100%; height:100%;" id="mainFrame" src="" frameborder="0" scrolling="no"/>
	</body>
</html>

Whois info of domain

Domain Name: NIL9.COM
Registry Domain ID: 2421176718_DOMAIN_COM-VRSN
Registrar WHOIS Server: grs-whois.hichina.com
Registrar URL: http://www.net.cn
Updated Date: 2023-02-14T07:43:50Z
Creation Date: 2019-08-08T17:29:07Z
Registry Expiry Date: 2029-08-08T17:29:07Z
Registrar: Alibaba Cloud Computing (Beijing) Co., Ltd.
Registrar IANA ID: 420
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +86.95187
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
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: 2025-05-10T18:20:30Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
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