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 - kotsf.com
HTTP Status: 301
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Server: nginx/1.18.0 (Ubuntu)
Date: Wed, 21 May 2025 05:55:31 GMT
Content-Type: text/html
Content-Length: 178
Connection: keep-alive
Location: https://kotsf.com/

HTTP Code 301 Moved Permanently

301 http status 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://kotsf.com/
HTTP Status: 200
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Server: nginx/1.18.0 (Ubuntu)
Date: Wed, 21 May 2025 05:55:31 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 7831
Connection: keep-alive
X-Content-Type-Options: nosniff
Referrer-Policy: same-origin
Cross-Origin-Opener-Policy: same-origin
X-Frame-Options: DENY
Vary: Cookie
Access-Control-Allow-Origin: *

HTTP Code 200 OK

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



<!DOCTYPE html>
<html class="no-js" lang="en">
  <head>
    <meta charset="utf-8" />
    <title>
      
      Home | KotSF Software Development
      
      
      
      - KotSF
      
      
    </title>
    <meta name="description" content="KotSF is a consulting agency providing custom web and software development services." />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <link rel="apple-touch-icon" sizes="180x180" href="/static/img/favicon/apple-touch-icon.7df96de65bb1.png">
    <link rel="icon" type="image/png" sizes="32x32" href="/static/img/favicon/favicon-32x32.a80913f90b57.png">
    <link rel="icon" type="image/png" sizes="16x16" href="/static/img/favicon/favicon-16x16.0f5f31ffc7a0.png">
    <link rel="manifest" href="/static/img/favicon/site.053100cb84a5.webmanifest">


    
    <link rel="stylesheet" type="text/css" href="/static/css/kotsf_biz.1802898cef4a.css">    

    


    <script src="https://kit.fontawesome.com/226365912e.js" crossorigin="anonymous"></script>    
  </head>

  <body class="template-homepage">
    
    
    
    
    <div id="particles-js" style="width: 100%; height: 600px; background-color: #0a1532;">
    </div>
    
    
    <nav class="navbar navbar-expand-md navbar-light bg-light sticky-top">
      <a class="navbar-brand" href="/">
        <img src="/static/img/logo500.daad04dc0cd9.png" width="50" height="50" class="d-inline-block rounded-sm" alt="KotSF LLC logo">
      </a>
      <button class="navbar-toggler" type="button" data-toggle="collapse" 
              data-target="#main-nav" aria-controls="navbarsExampleDefault" 
              aria-expanded="false" aria-label="Toggle navigation">
        <span class="navbar-toggler-icon"></span>
      </button>

      <div class="collapse navbar-collapse justify-content-end" id="main-nav">
        <ul class="navbar-nav nav">
          
          <li class="nav-item">
            <a class="nav-link active"
               href="/"
               aria-selected="true"
               aria-controls="Home">
              Home <span class="sr-only">(current)</span>
            </a>
          </li>
          
          <li class="nav-item">
            <a class="nav-link "
               href="/portfolio/"
               aria-selected="false"
               aria-controls="Portfolio">
              Portfolio 
            </a>
          </li>
          
          <li class="nav-item">
            <a class="nav-link "
               href="/contact/"
               aria-selected="false"
               aria-controls="Contact">
              Contact 
            </a>
          </li>
          
        </ul>
      </div>
    </nav>
    <main class="container" role="main">
      
<h1>KotSF Software Development</h1>

<p>KotSF is a custom software development agency. Our mission is to leverage state-of-the art technology and the best practices of software engineering to make our clients&#x27; lives easier and more productive.</p>

<h2>Services</h2>

<div class="row mb-2">
  <div class="col-md-4">
    <img alt="dataviz" height="300" src="/media/images/data_visualiztion.2e16d0ba.fill-300x300.jpg" width="300">
  </div>
  <div class="col-md-8">
    <h3>
      
      Data Analysis and Visualization
      
    </h3>
    <p>Gain key insights into your business or research with data analysis and visualization. KotSF prepares custom dashboards, analyzes data for trends, and develops machine learning models to make the most of your data.</p>
  </div>
</div>

<div class="row mb-2">
  <div class="col-md-4">
    <img alt="custom_webapp" height="300" src="/media/images/custom_webapp.2e16d0ba.fill-300x300.jpg" width="300">
  </div>
  <div class="col-md-8">
    <h3>
      
      Custom Web Applications
      
    </h3>
    <p>Go beyond a basic website. Provide superior online service to your customers and showcase your research to the world with a bespoke web application. KotSF develops interactive online tools that delight customers and impress review boards.</p>
  </div>
</div>

<div class="row mb-2">
  <div class="col-md-4">
    <img alt="business_automation" height="300" src="/media/images/business_automation.2e16d0ba.fill-300x300.jpg" width="300">
  </div>
  <div class="col-md-8">
    <h3>
      
      Business Automation
      
    </h3>
    <p>Streamline your business processes by removing manual steps. Custom scripts, spreadsheets, and purpose-built applications free your employees from repetitive tasks, allowing them to use their time more productively. KotSF reduces errors and increases efficiency to make the most of your existing business software such as AutoCAD, Revit, Excel, Word, and more.</p>
  </div>
</div>

<div class="row mb-2">
  <div class="col-md-4">
    <img alt="ARVR" height="300" src="/media/images/ARVR.2e16d0ba.fill-300x300.jpg" width="300">
  </div>
  <div class="col-md-8">
    <h3>
      
      Augmented and Virtual Reality
      
    </h3>
    <p>Wow your customers, bosses, and senior management with an immersive experience in augmented and virtual reality. KotSF develops state-of-the-art solutions to bring your work to life in a compelling virtual experience.</p>
  </div>
</div>

<div class="row mb-2">
  <div class="col-md-4">
    <img alt="portfolio.jpg" height="300" src="/media/images/portfolio.2e16d0ba.fill-300x300.jpg" width="300">
  </div>
  <div class="col-md-8">
    <h3>
      
      Dynamic CVs and Portfolios
      
    </h3>
    <p>Showcase your work with its own permanent home on the web. KotSF provides attractive, dynamic CV, résumé, and portfolio websites that facilitate knowledge exchange and serve as a living record of your creative and professional endeavors for potential employers, clients, and grant committees.</p>
  </div>
</div>

<div class="row mb-2">
  <div class="col-md-4">
    <img alt="dh" height="300" src="/media/images/dh.2e16d0ba.fill-300x300.jpg" width="300">
  </div>
  <div class="col-md-8">
    <h3>
      
      Digital Humanities
      
    </h3>
    <p>Bring your research to a wider audience with an interactive digital experience. KotSF integrates the latest technology such as natural language processing, information modelling, artificial intelligence, and GIS to realize novel and exciting digital humanities projects. From data collection via web scraping and text mining to the final presentation, KotSF streamlines the development process to make your work shine.</p>
  </div>
</div>



    </main>

    <footer>
      <div class="container">
	<small class="text-muted mh-100 align-middle">Looking for the blog? It moved to <a href="https://tiltingatwindmills.dev">tiltingatwindmills.dev</a></small>
        <small class="text-muted mh-100 align-middle ml-3">&copy;2025 KotSF LLC</small>
      </div>
    </footer>


    
    <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>

    <script type="text/javascript" src="/static/js/kotsf_biz.d41d8cd98f00.js"></script>

    
<script type="text/javascript" src="/static/js/particles.min.00debcf6cf07.js"></script>
<script type="text/javascript" src="/static/js/particle_start.752f347f15df.js"></script>

    <script async defer src="https://api.kotsf.com/latest.js"></script>
    <noscript><img src="https://api.kotsf.com/noscript.gif" alt=""/></noscript>
  </body>
</html>

Whois info of domain

Domain Name: KOTSF.COM
Registry Domain ID: 1514653428_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.namecheap.com
Registrar URL: http://www.namecheap.com
Updated Date: 2024-08-08T14:57:00Z
Creation Date: 2008-08-18T12:41:03Z
Registry Expiry Date: 2025-08-18T12:41:03Z
Registrar: NameCheap, Inc.
Registrar IANA ID: 1068
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +1.6613102107
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS-1106.AWSDNS-10.ORG
Name Server: NS-1807.AWSDNS-33.CO.UK
Name Server: NS-451.AWSDNS-56.COM
Name Server: NS-803.AWSDNS-36.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-21T05:55:17Z <<<
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