check web redirect url status code checker

Check server response of

Server response
NS records
Whois domain
Response headers
Request headers
Raw HTML code
403 Forbidden - kpi4u.com
HTTP Status: 403
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Date: Mon, 12 May 2025 12:05:58 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
X-Frame-Options: SAMEORIGIN
Referrer-Policy: same-origin
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Thu, 01 Jan 1970 00:00:01 GMT
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=O1QFStjJCFERv2xXkZV1G%2Bl38UC85Nu0g1%2BrR8Ewj%2F9HDcNCdqPVXM7S2rBrQEAVZOkmEovI8ulK0vEfy5eTm9Ao49hemwPFRlLrS%2BWhaNlsjbgeRCa9A569bOw%3D"}],"group":"cf-nel","max_age":604800}
NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
Vary: Accept-Encoding
server-timing: cfL4;desc="?proto=TCP&rtt=58&min_rtt=58&rtt_var=29&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=656&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"
alt-svc: h3=":443"; ma=86400
cf-cache-status: DYNAMIC
Server: cloudflare
CF-RAY: 93e9c9904b4970fb-HEL
server-timing: cfL4;desc="?proto=TCP&rtt=51&min_rtt=51&rtt_var=25&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=640&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"
server-timing: cfL4;desc="?proto=TCP&rtt=57&min_rtt=57&rtt_var=28&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=624&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"
server-timing: cfL4;desc="?proto=TCP&rtt=64&min_rtt=64&rtt_var=32&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=608&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"
server-timing: cfL4;desc="?proto=TCP&rtt=67&min_rtt=67&rtt_var=33&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=592&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"
server-timing: cfL4;desc="?proto=TCP&rtt=82&min_rtt=82&rtt_var=41&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=576&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"
server-timing: cfL4;desc="?proto=TCP&rtt=55&min_rtt=55&rtt_var=27&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=560&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"
server-timing: cfL4;desc="?proto=TCP&rtt=58&min_rtt=58&rtt_var=29&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=543&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"
server-timing: cfL4;desc="?proto=TCP&rtt=111&min_rtt=111&rtt_var=55&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=527&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"
server-timing: cfL4;desc="?proto=TCP&rtt=59&min_rtt=59&rtt_var=29&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=511&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"
server-timing: cfL4;desc="?proto=TCP&rtt=120&min_rtt=120&rtt_var=60&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=495&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"
server-timing: cfL4;desc="?proto=TCP&rtt=98&min_rtt=98&rtt_var=49&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=479&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"
server-timing: cfL4;desc="?proto=TCP&rtt=49&min_rtt=49&rtt_var=24&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=463&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"
server-timing: cfL4;desc="?proto=TCP&rtt=92&min_rtt=92&rtt_var=46&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=447&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"
server-timing: cfL4;desc="?proto=TCP&rtt=57&min_rtt=57&rtt_var=28&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=431&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"
server-timing: cfL4;desc="?proto=TCP&rtt=130&min_rtt=130&rtt_var=65&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=414&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"
server-timing: cfL4;desc="?proto=TCP&rtt=1130&min_rtt=1130&rtt_var=565&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=165&delivery_rate=0&cwnd=238&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"

HTTP Code 403 Forbidden

403 http 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: kpi4u.com
Accept: */*
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])

<!DOCTYPE html>
<!--[if lt IE 7]> <html class="no-js ie6 oldie" lang="en-US"> <![endif]-->
<!--[if IE 7]>    <html class="no-js ie7 oldie" lang="en-US"> <![endif]-->
<!--[if IE 8]>    <html class="no-js ie8 oldie" lang="en-US"> <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js" lang="en-US"> <!--<![endif]-->
<head>
<title>DNS points to prohibited IP | kpi4u.com | Cloudflare</title>
<meta charset="UTF-8" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=Edge" />
<meta name="robots" content="noindex, nofollow" />
<meta name="viewport" content="width=device-width,initial-scale=1" />
<link rel="stylesheet" id="cf_styles-css" href="/cdn-cgi/styles/main.css" />


<script>
(function(){if(document.addEventListener&&window.XMLHttpRequest&&JSON&&JSON.stringify){var e=function(a){var c=document.getElementById("error-feedback-survey"),d=document.getElementById("error-feedback-success"),b=new XMLHttpRequest;a={event:"feedback clicked",properties:{errorCode:1000,helpful:a,version:1}};b.open("POST","https://sparrow.cloudflare.com/api/v1/event");b.setRequestHeader("Content-Type","application/json");b.setRequestHeader("Sparrow-Source-Key","c771f0e4b54944bebf4261d44bd79a1e");
b.send(JSON.stringify(a));c.classList.add("feedback-hidden");d.classList.remove("feedback-hidden")};document.addEventListener("DOMContentLoaded",function(){var a=document.getElementById("error-feedback"),c=document.getElementById("feedback-button-yes"),d=document.getElementById("feedback-button-no");"classList"in a&&(a.classList.remove("feedback-hidden"),c.addEventListener("click",function(){e(!0)}),d.addEventListener("click",function(){e(!1)}))})}})();
</script>

<script defer src="https://performance.radar.cloudflare.com/beacon.js"></script>
</head>
<body>
  <div id="cf-wrapper">
    <div class="cf-alert cf-alert-error cf-cookie-error hidden" id="cookie-alert" data-translate="enable_cookies">Please enable cookies.</div>
    <div id="cf-error-details" class="p-0">
      <header class="mx-auto pt-10 lg:pt-6 lg:px-8 w-240 lg:w-full mb-15 antialiased">
         <h1 class="inline-block md:block mr-2 md:mb-2 font-light text-60 md:text-3xl text-black-dark leading-tight">
           <span data-translate="error">Error</span>
           <span>1000</span>
         </h1>
         <span class="inline-block md:block heading-ray-id font-mono text-15 lg:text-sm lg:leading-relaxed">Ray ID: 93e9c991aa8d3767 &bull;</span>
         <span class="inline-block md:block heading-ray-id font-mono text-15 lg:text-sm lg:leading-relaxed">2025-05-12 12:05:58 UTC</span>
        <h2 class="text-gray-600 leading-1.3 text-3xl lg:text-2xl font-light">DNS points to prohibited IP</h2>
      </header>

      <section class="w-240 lg:w-full mx-auto mb-8 lg:px-8">
          <div id="what-happened-section" class="w-1/2 md:w-full">
            <h2 class="text-3xl leading-tight font-normal mb-4 text-black-dark antialiased" data-translate="what_happened">What happened?</h2>
            <p>You've requested a page on a website (kpi4u.com) that is on the <a href="https://www.cloudflare.com/5xx-error-landing/" target="_blank">Cloudflare</a> network. Unfortunately, it is resolving to an IP address that is creating a conflict within Cloudflare's system.</p>
            
          </div>

          
          <div id="resolution-copy-section" class="w-1/2 mt-6 text-15 leading-normal">
            <h2 class="text-3xl leading-tight font-normal mb-4 text-black-dark antialiased" data-translate="what_can_i_do">What can I do?</h2>
            <p><strong>If you are the owner of this website:</strong><br />you should <a href="https://www.cloudflare.com/login?utm_source=error_100x" target="_blank">login to Cloudflare</a> and change the DNS A records for kpi4u.com to resolve to a different IP address.</p>
          </div>
          
      </section>

      <div class="feedback-hidden py-8 text-center" id="error-feedback">
    <div id="error-feedback-survey" class="footer-line-wrapper">
        Was this page helpful?
        <button class="border border-solid bg-white cf-button cursor-pointer ml-4 px-4 py-2 rounded" id="feedback-button-yes" type="button">Yes</button>
        <button class="border border-solid bg-white cf-button cursor-pointer ml-4 px-4 py-2 rounded" id="feedback-button-no" type="button">No</button>
    </div>
    <div class="feedback-success feedback-hidden" id="error-feedback-success">
        Thank you for your feedback!
    </div>
</div>


      <div class="cf-error-footer cf-wrapper w-240 lg:w-full py-10 sm:py-4 sm:px-8 mx-auto text-center sm:text-left border-solid border-0 border-t border-gray-300">
  <p class="text-13">
    <span class="cf-footer-item sm:block sm:mb-1">Cloudflare Ray ID: <strong class="font-semibold">93e9c991aa8d3767</strong></span>
    <span class="cf-footer-separator sm:hidden">&bull;</span>
    <span id="cf-footer-item-ip" class="cf-footer-item hidden sm:block sm:mb-1">
      Your IP:
      <button type="button" id="cf-footer-ip-reveal" class="cf-footer-ip-reveal-btn">Click to reveal</button>
      <span class="hidden" id="cf-footer-ip">162.158.238.230</span>
      <span class="cf-footer-separator sm:hidden">&bull;</span>
    </span>
    <span class="cf-footer-item sm:block sm:mb-1"><span>Performance &amp; security by</span> <a rel="noopener noreferrer" href="https://www.cloudflare.com/5xx-error-landing" id="brand_link" target="_blank">Cloudflare</a></span>
    
  </p>
  <script>(function(){function d(){var b=a.getElementById("cf-footer-item-ip"),c=a.getElementById("cf-footer-ip-reveal");b&&"classList"in b&&(b.classList.remove("hidden"),c.addEventListener("click",function(){c.classList.add("hidden");a.getElementById("cf-footer-ip").classList.remove("hidden")}))}var a=document;document.addEventListener&&a.addEventListener("DOMContentLoaded",d)})();</script>
</div><!-- /.error-footer -->


    </div><!-- /#cf-error-details -->
  </div><!-- /#cf-wrapper -->

  <script>
  window._cf_translation = {};
  
  
</script>

</body>
</html>

Whois info of domain

Domain Name: KPI4U.COM
Registry Domain ID: 2885641582_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.matbao.net
Registrar URL: http://www.matbao.net
Updated Date: 2024-06-07T03:07:57Z
Creation Date: 2024-05-29T08:26:26Z
Registry Expiry Date: 2025-05-29T08:26:26Z
Registrar: MAT BAO CORPORATION
Registrar IANA ID: 1586
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +84-36229999 - 8899
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: ETTA.NS.CLOUDFLARE.COM
Name Server: MICHAEL.NS.CLOUDFLARE.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-12T12:05:38Z <<<
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
TERMS OF USE: You are not authorized to access or query our Whois
by the following terms of use: You agree that you may use this Data only
to: (1) allow, enable, or otherwise support the transmission of mass