check web redirect url status code checker

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NS records
Whois domain
Response headers
Request headers
Raw HTML code
403 Forbidden - bd4z.com
HTTP Status: 403
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Date: Sat, 10 May 2025 03:39:28 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: keep-alive
Vary: Accept-Encoding
cf-cache-status: DYNAMIC
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=HDxz6KOJv6A5AJ7pmj5aY83Nj6J8tsmrLuJL97o2DqT0boGmoRY7BRc%2BBOoSxnvJHOymtBaJDLXSkC%2BMlRel17tSC1UZlkdHeC43ESjh%2B6lRdMAJDjUm0aBJUrs5bLFhXOTSx2MWVw%3D%3D"}],"group":"cf-nel","max_age":604800}
NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
Server: cloudflare
CF-RAY: 93d668de49bb5571-ARN
alt-svc: h3=":443"; ma=86400
server-timing: cfL4;desc="?proto=TCP&rtt=7544&min_rtt=7544&rtt_var=3772&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=164&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"

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: bd4z.com
Accept: */*
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>aaPanel Website Firewall Free Edition</title>
<style>
*{margin:0;padding:0;color:#444}
body{font-size:14px;font-family:"宋体"}
.main{width:700px;margin:10% auto;}
.title{background: #20a53a;color: #fff;font-size: 16px;height: 40px;line-height: 40px;padding-left: 20px;}
.content{background-color:#f3f7f9; height:280px;border:1px dashed #c6d9b6;padding:20px}
.t1{border-bottom: 1px dashed #c6d9b6;color: #ff4000;font-weight: bold; margin: 0 0 20px; padding-bottom: 18px;}
.t2{margin-bottom:8px; font-weight:bold}
ol{margin:0 0 20px 22px;padding:0;}
ol li{line-height:30px}
</style>
</head>

<body>
	<div class="main">
		<div class="title">aaPanel Website Firewall Free Edition</div>
		<div class="content">
			<p class="t1">Your request has an illegal parameter and has been blocked by the webmaster settings!</p>
			<p class="t2">Possible reason: </p>
			<ol>
				<li>Your submission contains dangerous attack requests</li>
			</ol>
			<p class="t2">How to solve: </p>
			<ol>
				<li>Check the submission;</li>
				<li>If the website is hosted, please contact the space provider;</li>
				<li>For ordinary website visitors, please contact the webmaster;</li>
				<li>This is a false positive, please contact the aaPanel <a href="https://forum.aapanel.com/" target="_brank">https://forum.aapanel.com/</a></li>
			</ol>
		</div>
	</div>
</body>
</html>

Whois info of domain

Domain Name: BD4Z.COM
Registry Domain ID: 2826859637_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.gname.com
Registrar URL: http://www.gname.com
Updated Date: 2024-10-29T00:51:14Z
Creation Date: 2023-11-03T18:12:59Z
Registry Expiry Date: 2025-11-03T18:12:59Z
Registrar: Gname.com Pte. Ltd.
Registrar IANA ID: 1923
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +65.65189986
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: ISHAAN.NS.CLOUDFLARE.COM
Name Server: RAEGAN.NS.CLOUDFLARE.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-10T03:39:15Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
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