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
200 OK - csutb.com
HTTP Status: 200
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Cache-Control: no-cache
Pragma: no-cache
Content-Type: text/html; charset=UTF-8
Expires: -1
Server: Microsoft-IIS/8.5
X-Powered-By: ASP.NET
Date: Wed, 30 Apr 2025 08:19:19 GMT
Content-Length: 4014

HTTP Code 200 OK

200 status code is a standard successful HTTP server response. It means that the client’s request (e.g., from a browser) was successfully processed, and the server is delivering the requested data.

When is Code 200 used?

  • When loading a web page
  • When successfully receiving an API response
  • When processing a form or another HTTP request

What does Code 200 mean for the user?

The user receives content without errors, and the page or application functions properly. If Code 200 is accompanied by data, the browser or program processes and displays it to the user.

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

<!DOCTYPE html>
<html dir="ltr" lang="zh" i18n-processed=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="theme-color" content="#fff">
<meta name="viewport" content="width=device-width, initial-scale=1.0,maximum-scale=1.0, user-scalable=no">
<title>无法访问此网站</title>
<script>
document.oncontextmenu=new Function("return false") 
document.onselectstart=new Function("return false") 
</script>
  <style>
html {
  -webkit-text-size-adjust: 100%;
  font-size: 230%;
}

button {
  border: 0;
  border-radius: 2px;
  box-sizing: border-box;
  color: #fff;
  cursor: pointer;
  float: right;
  font-size: .875em;
  margin: 0;
  padding: 10px 24px;
  transition: box-shadow 200ms cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
}
.neterror button{
  background: rgb(66, 133, 244);
}

button:active {
  background: rgb(50, 102, 213);
  outline: 0;
}

button:hover {
  box-shadow: 0 1px 3px rgba(0, 0, 0, .50);
}
h1 {
  color: #333;
  font-size: 1.6em;
  font-weight: normal;
  line-height: 1.25em;
  margin-bottom: 16px;
}


.icon {
  height: 72px;
  margin: 0 0 40px;
  width: 72px;
}

.interstitial-wrapper {
  box-sizing: border-box;
  font-size: 1em;
  line-height: 1.6em;
  margin: 14vh auto 0;
  max-width: 600px;
  width: 100%;
}
.nav-wrapper {
  margin-top: 51px;
}
@media (max-width: 420px) {
  button,
  [dir='rtl'] button,
  .small-link {
    float: none;
    font-size: .825em;
    font-weight: 400;
    margin: 0;
    text-transform: uppercase;
    width: 100%;
  }
}
  

a {
  color: rgb(17, 85, 204);
  text-decoration: none;
}


.icon-generic {
  content: -webkit-image-set(
      url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJAAAACQAQMAAADdiHD7AAAABlBMVEUAAABTU1OoaSf/AAAAAXRSTlMAQObYZgAAAFJJREFUeF7t0cENgDAMQ9FwYgxG6WjpaIzCCAxQxVggFuDiCvlLOeRdHR9yzjncHVoq3npu+wQUrUuJHylSTmBaespJyJQoObUeyxDQb3bEm5Au81c0pSCD8HYAAAAASUVORK5CYII=) 2x);
}

.error-code {
  display: block;
  font-size: .8em;
}

.single-suggestion {
  list-style-type: none;
  padding-left: 0;
}

.suggested-left > #control-buttons,
.suggested-right > #details-button {
  float: left;
}
</style>
</head>
<body id="t" style="font-family: &#39;Segoe UI&#39;,Arial,&#39;Microsoft Yahei&#39;,sans-serif; font-size: 40%" class="neterror">
  <div id="main-frame-error" class="interstitial-wrapper">
    <div id="main-content">
      <div class="icon icon-generic"></div>
      <div id="main-message">
        <h1 jsselect="heading">无法访问此网站</h1>
        <p jsselect="summary">找不到服务器 IP 地址。</p>
        <div id="suggestions-list">
          <ul class="single-suggestion">
            <li><a href="#" id="diagnose-link">尝试运行 Windows 网络诊断</a>。</li>
          </ul>
        </div>
        <div class="error-code">DNS_PROBE_FINISHED_NXDOMAIN</div>
      </div>
    </div>
    <div id="buttons" class="nav-wrapper suggested-left">
      <div id="control-buttons">
        <button id="reload-button" class="blue-button text-button">重新加载</button>
      </div>
    </div>
  </div>
<script>
//var _hmt = _hmt || [];
//(function() {
//  var hm = document.createElement("script");
//  hm.src = "https://hm.baidu.com/hm.js?6b76916a707e397de236b93c6239293d";
//  var s = document.getElementsByTagName("script")[0]; 
//  s.parentNode.insertBefore(hm, s);
//})();

//<script>
!function(p){"use strict";!function(t){var s=window,e=document,i=p,c="".concat("https:"===e.location.protocol?"https://":"http://","sdk.51.la/js-sdk-pro.min.js"),n=e.createElement("script"),r=e.getElementsByTagName("script")[0];n.type="text/javascript",n.setAttribute("charset","UTF-8"),n.async=!0,n.src=c,n.id="LA_COLLECT",i.d=n;var o=function(){s.LA.ids.push(i)};s.LA?s.LA.ids&&o():(s.LA=p,s.LA.ids=[],o()),r.parentNode.insertBefore(n,r)}()}({id:"KYSvWsCE8EvRnMGm",ck:"KYSvWsCE8EvRnMGm"});
//</script>

</script>
</body></html>

Whois info of domain

Domain Name: CSUTB.COM
Registry Domain ID: 2137741875_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.gname.com
Registrar URL: http://www.gname.com
Updated Date: 2025-03-15T10:26:57Z
Creation Date: 2017-06-27T18:34:32Z
Registry Expiry Date: 2025-06-27T18:34:32Z
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: N1.XUNDNS.COM
Name Server: N2.XUNDNS.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-04-30T08:19:07Z <<<
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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