check web redirect url status code checker

Check server response of

Server response
NS records
Whois domain
Response headers
Request headers
Raw HTML code
301 Moved Permanently - jsndr.com
HTTP Status: 301
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Connection: keep-alive
Content-Length: 162
Server: GitHub.com
Content-Type: text/html
Location: https://jsndr.com/
X-GitHub-Request-Id: EAB7:2FCF38:40FD3A8:418E706:68159156
Accept-Ranges: bytes
Age: 0
Date: Sat, 03 May 2025 03:45:27 GMT
Via: 1.1 varnish
X-Served-By: cache-hel1410021-HEL
X-Cache: MISS
X-Cache-Hits: 0
X-Timer: S1746243927.979201,VS0,VE117
Vary: Accept-Encoding
X-Fastly-Request-ID: 3541ba7ef39892aebabb4ada1c644975b4592791

HTTP Code 301 Moved Permanently

301 http code means that the requested resource has been permanently moved to a new URL. All future requests should use the new address.

When is Code 301 used?

  • When changing a website domain
  • When modifying URL structures
  • When setting up redirects for SEO

What does Code 301 mean for the user?

The browser will automatically redirect the user to the new address, and search engines will update their indexes.

200 OK - https://jsndr.com/
HTTP Status: 200
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Connection: keep-alive
Content-Length: 21668
Server: GitHub.com
Content-Type: text/html; charset=utf-8
Last-Modified: Wed, 02 Apr 2025 17:16:00 GMT
Access-Control-Allow-Origin: *
ETag: "67ed70d0-54a4"
expires: Sat, 03 May 2025 03:55:27 GMT
Cache-Control: max-age=600
x-proxy-cache: MISS
X-GitHub-Request-Id: B233:1C4A4E:5163540:5218566:68159156
Accept-Ranges: bytes
Age: 0
Date: Sat, 03 May 2025 03:45:27 GMT
Via: 1.1 varnish
X-Served-By: cache-hel1410025-HEL
X-Cache: MISS
X-Cache-Hits: 0
X-Timer: S1746243927.149593,VS0,VE164
Vary: Accept-Encoding
X-Fastly-Request-ID: cf046e4b0b955c6a43eea8da1aa552b9a18049bf

HTTP Code 200 OK

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

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta name="description" content="I am an associate professor of Economics at Universidad Carlos III de Madrid"/>

    <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
    <title>Johannes Schneider - Carlos III - Department of Economics </title>

    <!-- Bootstrap -->
    <link href="css/bootstrap.min.css" rel="stylesheet">
    <link href="main.css" rel="stylesheet">
    <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">



    <!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
    <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
    <!--[if lt IE 9]>
      <script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
      <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
    <![endif]-->
        <!-- <script>
      (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
      (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
      m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
      })(window,document,'script','//www.google-analytics.com/analytics.js','ga');

      ga('create', 'UA-65546929-1', 'auto');
      ga('send', 'pageview');

    </script> -->
  </head>


<body id="page-top" data-spy="scroll" data-target=".navbar-fixed-top">
    <nav class="navbar navbar-default navbar-fixed-top" role="navigation">
        <div class="container-fluid">
          <div class="navbar-header page-scroll">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
              <span class="sr-only">Toggle navigation</span>
              <span class="icon-bar"></span>
              <span class="icon-bar"></span>
              <span class="icon-bar"></span>
            </button>
            <a class="navbar-brand page-scroll" href="#page-top">Johannes Schneider</a>
          </div>
          <div id="navbar" class="navbar-collapse collapse">
            <ul class="nav navbar-nav">
              <li class="active"><a  class="page-scroll" href="#home">Home</a></li>
              <li><a class="page-scroll" href="#research">Research</a></li>
              <li><a class="page-scroll" href="SchneiderCV.pdf" target="_blank">Curriculum Vitae</a></li>
              <!-- <li><a class="page-scroll" href="#teaching">Teaching</a></li> -->
              <!-- <li><a class="page-scroll" href="#references">References</a></li> -->
              <li><a class="page-scroll" href="#contact">Contact</a></li>
            </ul>

          </div>
        </div>
      </nav>

    <section id="home" class="home-section">
    	<div class="container-fluid">
    	<div class="col-md-9 col-lg-7 col-xl-5">
          <div class="welcome"> 
            <div class="container-fluid ">
             <div class="row vertical-align">
              <div class="col-md-9 col-lg-7 col-xl-5">
               <h1>Welcome</h1>
                <h2><small>I am an associate professor at Universidad Carlos III de Madrid.<br><br> I work on Economic Theory and applications to Innovation, Technological Change, and the Law.<br><br> </small></h2><p> </p>
              </div>
              <div class="col-lg-5 hidden-md hidden-sm hidden-xs col centered" >
              <img src="new.JPG" class="img-responsive" style="padding:0%">
              </div>
            </div></div>
            </div>
			</div></div></section>
  <section id="research" class="research-section">
      <div class="container-fluid">
      <div class="row">
        <div class="col-md-9 col-lg-7 col-xl-5">
        <div class="page-header text-center">
          <h1>Research</h1> 
          <h2 class="symbolline text-center">
            <span class="glyphicon-folder-open" aria-hidden="true"></span>
          </h2>
        </div></div></div>
        
        <div class="row">
          <div class="col-md-9 col-lg-7 col-xl-5">
            
              <h3>science of science</h3>
            <h4 style="color:black"> <a href="https://doi.org/10.3982/ECTA22144" style="color:white">A Quest for Knowledge </a> <small style="color:black;">(with <a target="_blank" href="http://carnehl.github.io">Christoph Carnehl</a>)</small><br>  <i style="color:black;">&mdash; Econometrica, 93(2), 2025</i></h4>
              <p style="text-align:justify"><p style="text-align:justify"> A researcher is standing on the shoulders of giants and selects a research question. Which one will she pick? How invested is she to find an answer? How does knowledge evolve? Can we improve on that evolution? <a href="https://www.econometricsociety.org/publications/econometrica/browse/2025/03/01/A-Quest-for-Knowledge/file/ecta200746.pdf" style="color:white">[ecma  (open access)]</a>,<a href="https://arxiv.org/abs/2102.13434" style="color:white"">[arXiv]</a>,<a href="QfK_presentation.pdf" style="color:white"> [slides]</a>,<a href="https://www.youtube.com/watch?v=Zk9Osb_0BYo" style="color:white" target="_blank"> [video (earlier version)]</a>, <a href="https://twitter.com/jsndr/status/1366764321494228993?s=20" style="color:white" target="_blank"> [twttr]</a>,<a href="https://uc3nomics.uc3m.es/moonshots-and-milestones/" style="color: white" target="_blank">[blog]</a>,<a href="QfK_Matlab.zip" download style="color:black" target="_blank">[matlab]</a></p>  <br>

               <h3>firms and organization</h3>
               <h4 style="color:black"><a href="https://arxiv.org/abs/2406.09734" style="color:white" target="_blank">Embracing the Enemy </a> <small style="color:black;">(with <a target="_blank" href="https://sites.google.com/view/alvarodelgadovega/">Álvaro Delgado-Vega</a>)</small><br><small style="color:black;"><i>Revise & Resubmit ReStud</i></small></h4>
               <p style="text-align:justify"> Groups in an organization compete about the <em>who</em> and the <em>how</em>. A third party can partially influence the who and cares about the how. Whom should it support?<a href="https://arxiv.org/pdf/2406.09734" style="color:white" target="_blank">[pdf]</a>,<a href="Presentation_ETE.pdf" style="color:white" target="_blank"> [slides]</a>,<a href="https://x.com/jsndr/status/1818751153716486532" style="color:white" target="_blank">[twttr]</a>,<a href="MathematicaCode_ETE.zip" style="color:black">[mathematica]</a>
                </p><br>

            <h4><a href="https://doi.org/10.1093/jeea/jvac027" style="color:white">On Risk and Time Pressure: When to Think and When to Do </a><small style="color:black;">(with <a target="_blank" href="http://carnehl.github.io">Christoph Carnehl)</a> </small><br>  <i style="color:black;">&mdash; Journal of the European Economic Association, 21, 2023</i></h4>
            <p style="text-align:justify">You have a deadline to solve a problem. When should you use whatever you have available, when should you think about new things? How often should you switch between approaches? <a href="https://arxiv.org/pdf/2111.07451v2.pdf" style="color:white" target="_blank">[arXiv]</a>,<a href="AIP_presentation.pdf" style="color:white" target="_blank">[slides]</a><a href="https://twitter.com/jsndr/status/1532698384078934017" style="color:white" target="_blank">, [twttr]</a></p><br>

             <h4><a href="https://doi.org/10.1016/j.ijindorg.2021.102764" style="color:white">  Persuading to Participate: Coordination on a Standard </a> <small style="color:black;">(with <a target="_blank" href="https://sites.google.com/site/bennibalzer1/">Benjamin Balzer</a>)</small><br><i style="color:black;">&mdash; International Journal of Industrial Organization, 78, 2021</i><br><b><small style="margin-left:20px;color:black"> IJIO Best Paper Award (Best Theoretical Paper 2021)</small></b></h4>
            <p style="text-align:justify">Coordination on standards is hard if firms have private information on the quality of their innovations. A firm can persuade a competitor to join the SSO by credibly threatening to release information about its own quality. Vaporware, Newsleakage, and Beta versions are potential business strategies to exercise the threat. <a href="InfoPunishment.pdf" style="color:white">[pdf]</a>, <a href="https://twitter.com/jsndr/status/1564183128566030336" style="color:white"> [twttr]</a> </p><br>  




            <h3>law and economics</h3>
              <h4><a href="https://onlinelibrary.wiley.com/doi/10.1111/1756-2171.12440" style="color:white"> The Wrong Kind of Information</a> <small style="color:black;">(with <a target="_blank" href="https://sites.google.com/view/adityakuvalekar">Aditya Kuvalekar</a> and <a target="_blank" href="https://www.joaoaramos.com/">Jo&atilde;o Ramos)</a></small><br>  <i style="color:black;">&mdash; RAND Journal of Eonomics, 54(2), 2023</i></h4><p style="text-align:justify"> An agent decides whether to approve a project based on his information, only a part of which is verifiable in court. Is more precise (un)verifiable information always better?  <a href="https://onlinelibrary.wiley.com/doi/epdf/10.1111/1756-2171.12440" style="color:white">[rand (open access)]</a>,<a href="https://arxiv.org/pdf/2111.04172" style="color:white">[arXiv]</a>,<a href="twki_presentation.pdf" style="color:white">[slides]</a>,<a href="https://twitter.com/adikuva/status/1561679290827034625" style="color:white">[twttr]</a>,<a href="https://uc3nomics.uc3m.es/the-wrong-kind-of-information/" style="color:white">[blog]</a></p><br>

             <h4><a href="https://onlinelibrary.wiley.com/doi/10.1111/1756-2171.12374" style="color:white"> Managing a Conflict: Optimal Alternative Dispute Resolution</a> <small style="color:black;">(with <a target="_blank" href="https://sites.google.com/site/bennibalzer1/">Benjamin Balzer)</a></small><br>  <i style="color:black;">&mdash; RAND Journal of Economics, 52, 2021</i></h4>
             <p style="text-align:justify"> Suppose some private information is relevant in a law suit only: How should we design ADR to settle outside the court?<br>
              <a href="https://onlinelibrary.wiley.com/doi/epdf/10.1111/1756-2171.12374" style="color:white">[rand  (open access)]</a>,<a href="OptimalADR.pdf" style="color:white">[wp]</a><a href="Constraint_Optimization.m" download style="color:black"><a href="https://twitter.com/jsndr/status/1408395768965255177" style="color:white" target="_blank">, [twttr]</a>, [matlab]</a></p><br>
                    
            
             
            <h4> Bankruptcy Laws and Debt Roll-Over (work in progress) <small style="color:black;">(with <a target="_blank" href="https://sites.google.com/site/floexler/research">Florian Exler</a>)</small><br><small style="color:black;font-weight:bold"></small></h4>
              <p style="text-align:justify"> If a borrower is in financial distress, he has better information whether this due to a (shorter) dry spell or because his investment is fundamentally rotten. That information is valuable to banks who have to decide whether to roll-over credit or to foreclose. Bankruptcy laws affect banks decisions and thus prices in the credit market.
               </p><br><br>

              
        
            

                  

           

            <h3>conflict management</h3>
            <h4><a href="https://doi.org/10.1016/j.geb.2023.03.012" style="color:white">  Mechanism Design with Informational Punishment </a><small style="color:black;">(with <a target="_blank" href="https://sites.google.com/site/bennibalzer1/">Benjamin Balzer)</a></small><br> <i style="color:black;">&mdash; Games and Economic Behavior, 40, 2023</i></h4>
            <p style="text-align:justify">
              A single veto can make a proposed mechanism void and enforce the play of a default game instead. When public vetoes are signals, is the threat to retaliate through information release enough to deter the deviator?  <a href="https://www.sciencedirect.com/science/article/pii/S0899825623000441/pdfft?md5=b997e7534fdd7028af9a392141a65cbb&pid=1-s2.0-S0899825623000441-main.pdf" style="color:white">[geb (open access)]</a>,<a href="https://arxiv.org/pdf/2201.01149" style="color:white">[arXiv]</a></p><br>

            <h4><a href="" style="color:white">  Belief Management in Conflict Resolution (Substantive Revision in progress) </a><small style="color:black;">(with <a target="_blank" href="https://sites.google.com/site/bennibalzer1/">Benjamin Balzer</a>&mdash; dormant)</small></h4>
            <p style="text-align:justify">
              Arbitration problems boil down to information design problems. The arbitrator always has to solve the information design problem, once she has done that, designing the arbitration problem is mechanical.  <a href="https://josndr.github.io" style="color:white">[pdf]</a></p><br>

            <h4> <a href="Sequential_Proposal_draft.pdf" style="color:white"> Persuasion, Pandering, and Sequential Proposal </a></h4>
            <p style="text-align:justify"><p style="text-align:justify"> How would an agent decide on the order of proposing projects to a principal? An accepted proposal forces the agent to work on it, once rejected it is hard to convince the principal to take up the project again. Is it wise to propose the agent-preferred project early on? Should she wait to signal that this truly is a good project? </p>  <br><br>

            
            
            <!-- <h3>learning in games</h3>
            <h4>Discriminating between Models of Learning - An Experimental Study with Intra-Team Communication (work in progress) <small style="color:black;">(with <a target="_blank" href="http://www.penczynski.de/">Stefan Penczynski</a>)</small></h4> -->
          </div>
        </div></div>
    </section>     
<!--     <section id="cv" class="cv-section">
      <div class="container-fluid">
      <div class="row">
      <div class="col-md-9">
      <div class="page-header text-center">
        <h1>Curriculum Vitae</h1> 
        <h2 class="symbolline text-center">
          <span class="glyphicon-education" aria-hidden="true"></span>
        </h2>
      </div></div></div>
      <div class="row">

        <div class="col-md-9">
        <br><br>
            <div class="table-responsive center">
                <table class="table-striped cv-table col-md-9, col-sm-9">
                  <tbody>
                    <tr>
                      <th>
                        2016-
                      </th>
                      <td><h4>Assistant Professor of Economics</h4>
                      Universidad Carlos III de Madrid</td>
                    </tr>
                    <caption style="caption-side:bottom;"><h4 style="color:black"> <br>Education</h4></caption>
                  </tbody>
                  </table>
                  <table class="table-striped cv-table col-md-9 col-sm-9">
                  
                  <tbody>
                  <tr>
                    <th>
                      2016
                    </th> -->
                   <!--  <td></td> -->
 <!--                    <td>
                      <h4>Ph.D. in Economics</h4>
                      University of Mannheim
                    </td>
                  </tr>
                  <tr>
                    <th>
                      2011 
                    </th> -->
                    <!-- <td></td> -->
<!--                     <td>
                      <h4>Diploma (M.Sc. equivalent) in Economics</h4>
                      University of Freiburg
                    </td>
                  </tr>
                  <tr>
                    <th>
                      2008-2009 
                    </th> -->
                    <!-- <td></td> -->
<!--                     <td>
                      <h4>Visiting Graduate Student </h4>
                      University of Bologna, Economics and  Political Sciences
                    </td>
                  </tr>
                  <tr></td></tr>
                  </tbody><caption style="caption-side:bottom;"><h4 style="color:black"> <br>Detailed CV(<a href="SchneiderCV.pdf">pdf</a>)</h4></caption>
                </table>
              </div>
          </div>
          </div>
        </div>


    </section> -->
   
<!--     <section id="teaching" class="teaching-section">
    <div class="container-fluid">
    <div class="row">
      <div class="col-md-9">
      <div class="page-header text-center">
        <h1>Teaching</h1> 
        <h2 class="symbolline text-center">
          <span class="glyphicon-blackboard" aria-hidden="true"></span>
        </h2>
      </div></div></div>
    <div class="row ">
      <div class="col-md-9 text-center">
      <div class="col-centered">
      <h3 style="color:black">Teaching Assistantships in Mannheim</h3>
      <div class="table-responsive">
        <table class="table-striped cv-table center">
          <caption></caption>
              <tbody>
                <tr>
                    <th>
                      Spring 2016<br>
                    </th>
                    <td>
                      Advanced Microeconomics III (PhD)<br>
                      Microeconomics A (Bachelor, in German)
                    </td>
                </tr>
                <tr>
                    <th>
                      Fall 2014
                    </th>
                    <td>
                      Microeconomics B (Bachelor, in German)
                    </td>
                </tr>
                <tr>
                    <th>
                      Fall 2013
                    </th>
                    
                    <td>
                      Microeconomics B (Bachelor, in German)
                    </td>
                </tr>
                <tr>
                    <th>
                      Fall 2012
                    </th>
                    <td>
                      Microeconomics B (Bachelor, in English)
                    </td>
                </tr>
              </tbody>
            </table></div>
      <h3 style="color:black">Teaching Assistantships in Freiburg</h3>
        <div class="table-responsive">
        <table class="table-striped cv-table center">
          <caption></caption>
              <tbody>
              <tr>
                <th>
                  Fall 2010 
                </th>
                <td>
                  Microeconomics I (Bachelor, in German)
                </td>
              </tr>
              </tbody>
            </table></div></div>
    </div>
    </div></div>
    </section> -->

    <!-- <section id="references" class="reference-section">
   		<div class="container-fluid">
  		<div class="row">
      <div class="col-md-9">
        		<div class="page-header text-center">
          		<h1>References</h1> 
          		<h2 class="symbolline text-center">
            			<span class="glyphicon-envelope" aria-hidden="true"></span>
          		</h2>
        		</div>
        		</div></div>
        		<div class="row">
      		<div class="container-fluid">
        			<div class="col-sm-3">
       
        				<h3><a target="_blank" href="http://nocke.vwl.uni-mannheim.de" style="color:black">Volker Nocke</a></h3>
        				<p>University of Mannheim</p>
        				<p>+49 621 181 1836<br>
        				   nocke [at] uni-mannheim.de</p>
        			</div>
        			<div class="col-md-3">
      
        				<h3><a target="_blank" href="http://peitz.vwl.uni-mannheim.de" style="color:black">Martin Peitz</a></h3>
        				<p>University of Mannheim</p>
        				<p>+49 621 181 1835<br>
        				   martin.peitz [at] googlemail.com</p>
        			</div>
        			<div class="col-md-3">
       
        				<h3><a target="_blank" href="http://thomasetroger.wordpress.com" style="color:black">Thomas Tröger</a></h3>
        				<p>University of Mannheim</p>
        				<p>+49 621 181 3423<br>
        				   troeger [at] uni-mannheim.de</p>
        			</div>
      		</div>
      		</div>
    		</div>
     </section> -->


     
    <section id="contact" class="contact-section">
 		<div class="container-fluid">
      <div class="row">
        <div class="col-md-7 col-lg-7 col-xl-5">
        <div class="page-header text-center">
        		<h1>Contact Details</h1> 
        		<h2 class="symbolline text-center">
          			<span class="glyphicon-user" aria-hidden="true"></span>
        		</h2>
      		</div>
      		</div></div>
      		<div class="row">
          <div class="col-md-7 col-lg-7 col-xl-5 text-center">
          <!-- <div class="col-centered"> -->
      		<h3>Johannes Schneider</h3>
    			<div class="textContainer">
                   Universidad Carlos III de Madrid<br>
                  Department of Economics<br>
                  Calle Madrid 126<br>
                  28903 Getafe, Spain<br> 
                  Phone: +34 91 624 9357<br>
      		  email: [email protected]</p>
      				 </div> 
      		</div></div></div>
      	<!-- </div> -->
     </section>

    <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
    <!-- Include all compiled plugins (below), or include individual files as needed -->
    <script src="js/bootstrap.min.js"></script>
    <script src="js/jquery.easing.min.js"></script>
    <script src="js/scrolling-nav.js"></script>

  </body>


</html>

Whois info of domain

Domain Name: JSNDR.COM
Registry Domain ID: 2965839452_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.cronon.net
Registrar URL: http://www.cronon.net
Updated Date: 2025-03-10T09:28:53Z
Creation Date: 2025-03-10T09:28:53Z
Registry Expiry Date: 2026-03-10T09:28:53Z
Registrar: Cronon GmbH
Registrar IANA ID: 141
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +4930398020
Domain Status: ok https://icann.org/epp#ok
Name Server: DOCKS15.RZONE.DE
Name Server: SHADES06.RZONE.DE
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-03T03:45:15Z <<<
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