It looks like this is a web page, not a feed. I looked for a feed associated with this page, but couldn't find one. Please enter the address of your feed to validate.

Source: http://www.ibm.com/blogs/zz/en/blogs.opml

  1. <!DOCTYPE html>
  2. <html lang="en-US">
  3.  
  4.  <head>
  5.    <meta charset="UTF-8" />
  6.    <meta name="viewport" content="width=device-width, initial-scale=1" />
  7.    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  8.    <meta name="dcterms.date" content="2019-05-21" />
  9.    <meta name="dcterms.rights" content="© Copyright IBM Corp. 2019" />
  10.    <meta name="description" content="The page you requested cannot be displayed (HTTP response code 404)">
  11.    <meta name="keywords" content="The page you requested cannot be displayed (HTTP response code 404)">
  12.    <meta name="geo.country" content="US" />
  13.    <meta name="keywords" content="" />
  14.    
  15.    <script>
  16. digitalData = {
  17. page: {
  18. category: {
  19. primaryCategory: 'error'
  20. },
  21. pageInfo: {
  22. effectiveDate: '2020-04-06',
  23. expiryDate: '2030-04-06',
  24. language: 'en-ZZ',
  25. publishDate: '2020-04-06',
  26. publisher: 'IBM Corporation',
  27. version: 'v18',
  28. ibm: {
  29. country: 'ZZ',
  30. owner: 'Corporate Webmaster/New York/IBM',
  31. siteID: 'error',
  32. subject: 'ZZ999',
  33. type: 'CT030'
  34. }
  35. }
  36. }
  37. };
  38. </script>
  39.  
  40.    <link rel="stylesheet" href="//1.www.s81c.com/common/v18/css/www.css" media="all" />
  41.    <link href="https://1.www.s81c.com/common/v19a/css/www.css" rel="stylesheet" />
  42.    <link rel="stylesheet" href="//1.www.s81c.com/common/v18/css/forms.css" media="all" />
  43.    <script src="//1.www.s81c.com/common/stats/ida_stats.js"></script>
  44.    <script src="//1.www.s81c.com/common/v18/js/www.js"></script>
  45.    <script src="https://1.www.s81c.com/common/v19a/js/www.js"></script>
  46.    <script src="//1.www.s81c.com/common/v18/js/forms.js"></script>
  47.    <script src="//www.ibm.com/common/digitaladvisor/js/cm-app.min.js"></script>
  48.    
  49.    <title>IBM notice: The page you requested cannot be displayed</title>
  50.    <script type="text/javascript">
  51. var ibmCommonErrorpagesStatus = "404",
  52. ibmCommonErrorpagesDesc = "Not Found";
  53.    </script>
  54.  
  55.    <style>
  56.      #ibm-gmktp-search-bttn::before {
  57.        background-color: invisible;
  58.        padding: 9px 10px 8px 10px;
  59.        color: #e0e0e0;
  60.      }
  61.  
  62.      #ibm-gmktp-search-bttn {
  63.        right: 20px;
  64.        top: 2px;
  65.      }
  66.  
  67.      .ibm-row-form input[type="text"] {
  68.        height: 3em;
  69.      }
  70.  
  71.      .ibm-type-j {
  72.        font-weight: 200;
  73.      }
  74.  
  75.      #explore .ibm-ind-link span {
  76.        top: -3px
  77.      }
  78.  
  79.      #explore .ibm-ind-link {
  80.        padding-right: 16px;
  81.      }
  82.  
  83.      #explore a:hover {
  84.        text-decoration-color: #e0e0e0;
  85.      }
  86.        @media (min-width:321px) {
  87.        .ibm-hidden-small-v19{
  88.          display: none;
  89.        }
  90.      }
  91.     @media (min-width:321px) {
  92.        .ibm-hidden-small-v19{
  93.          display: none;
  94.        }
  95.      }
  96.      @media (min-width:672px) {
  97.        .ibm-show-small-v19 {
  98.          display: none;
  99.        }
  100.        .ibm-hidden-small-v19{
  101.          display: inherit;
  102.        }
  103.      }
  104.  
  105.      @media (min-width:1056px) {
  106.        .search-holder {
  107.          max-width: 420px;
  108.          min-width: 0;
  109.        }
  110.  
  111.        .ibm-gmktp-search {
  112.          max-width: 350px;
  113.        }
  114.      }
  115.        
  116.      .ibm-gmktp-search {
  117.        position: relative;
  118.        width: 100%;
  119.      }
  120.      .ibm-gmktp-search .ibm-row-form p {
  121.        position: relative;
  122.        padding: 0;
  123.        color: #ffffff;
  124.      }
  125.  
  126.      .ibm-gmktp-search .ibm-row-form input {
  127.        width: 98%;
  128.        background-color: #393939;
  129.        color: #ffffff;
  130.      }
  131.  
  132.      .ibm-gmktp-search .ibm-row-form a {
  133.        display: inline-block;
  134.        width: 26px;
  135.        height: 26px;
  136.        position: absolute;
  137.        right: 10px;
  138.        top: 6px;
  139.        color: #ffffff;
  140.      }
  141.  
  142.      .ibm-gmktp-search.ibm-gmktp-search-rtl .ibm-row-form a {
  143.        display: inline-block;
  144.        width: 26px;
  145.        height: 26px;
  146.        position: absolute;
  147.        left: 10px;
  148.        right: unset;
  149.        top: 6px;
  150.      }
  151.  
  152.      .ibm-gmktp-search .ibm-row-form a span {
  153.        display: none;
  154.        position: relative;
  155.      }
  156.  
  157.      .ibm-gmktp-search .output {
  158.        display: block;
  159.        width: 100%;
  160.        position: absolute;
  161.        top: 100%;
  162.        left: 0;
  163.        z-index: 10;
  164.        padding: 0;
  165.        background: #393939;
  166.      }
  167.        .ibm-row-form.ibm-row-form--line input[type=email]:hover,.ibm-row-form.ibm-row-form--line input[type=number]:hover,.ibm-row-form.ibm-row-form--line input[type=password]:hover,.ibm-row-form.ibm-row-form--line input[type=search]:hover,.ibm-row-form.ibm-row-form--line input[type=tel]:hover,.ibm-row-form.ibm-row-form--line input[type=text]:hover,.ibm-row-form.ibm-row-form--line input[type=url]:hover{border:none;border-bottom:1px solid #e2e2e2;-webkit-box-shadow:0 1px 0 #e2e2e2;box-shadow:0 1px 0 #e2e2e2}
  168.        
  169.        ibm-column-form input:hover[type=email],.ibm-column-form input:hover[type=number],.ibm-column-form input:hover[type=password],.ibm-column-form input:hover[type=search],.ibm-column-form input:hover[type=tel],.ibm-column-form input:hover[type=text],.ibm-column-form input:hover[type=url],.ibm-column-form textarea:hover,.ibm-row-form input:hover[type=email],.ibm-row-form input:hover[type=number],.ibm-row-form input:hover[type=password],.ibm-row-form input:hover[type=search],.ibm-row-form input:hover[type=tel],.ibm-row-form input:hover[type=text],.ibm-row-form input:hover[type=url],.ibm-row-form textarea:hover{border-color:#e2e2e2;-webkit-box-shadow:0 0 0 1px #e2e2e2 inset;box-shadow:0 0 0 1px #e2e2e2 inset}
  170.  
  171.      .ibm-gmktp-search .output li {
  172.        position: relative;
  173.        color: #ffffff;
  174.        padding: 6px 10px 8px;
  175.      }
  176.  
  177.      .ibm-gmktp-search .output li .ibm-forward-link {
  178.        display: none;
  179.        position: absolute;
  180.        top: 7px;
  181.        right: 10px;
  182.        width: 26px;
  183.        height: 26px;
  184.      }
  185.  
  186.      .ibm-gmktp-search.ibm-gmktp-search-rtl .output li .ibm-forward-link {
  187.        display: none;
  188.        position: absolute;
  189.        top: 7px;
  190.        left: 10px;
  191.        right: unset;
  192.        width: 26px;
  193.        height: 26px;
  194.      }
  195.  
  196.      .ibm-gmktp-search .output li.ibm-active {
  197.        background: #262626;
  198.        color: #fff;
  199.      }
  200.  
  201.      .ibm-gmktp-search .output li.ibm-active .ibm-forward-link {
  202.        display: block;
  203.      }
  204.  
  205.      .ibm-gmktp-search .output li:hover {
  206.        cursor: pointer;
  207.      }
  208.  
  209.      .ibm-gmktp-search .output:empty {
  210.        opacity: 0;
  211.        z-index: -999;
  212.      }
  213.  
  214.      #search {
  215.        height: 48px;
  216.        line-height: 48px;
  217.      }
  218.      
  219.    </style>
  220.  </head>
  221.  
  222.  <body id="ibm-com" class="ibm-type">
  223.    <div id="ibm-top" class="ibm-landing-page">
  224.      <div id="ibm-masthead" role="banner" aria-label="IBM">
  225.        <div id="ibm-mast-options">
  226.          <ul role="toolbar" aria-labelledby="ibm-masthead">
  227.            <li id="ibm-geo" role="presentation">
  228.              <a href="https://www.ibm.com/planetwide/select/selector.html">United States</a>
  229.            </li>
  230.          </ul>
  231.        </div>
  232.        <div id="ibm-universal-nav">
  233.          <div id="ibm-home">
  234.            <a href="https://www.ibm.com/us-en/">IBM®</a>
  235.          </div>
  236.          <ul id="ibm-menu-links" role="toolbar" aria-label="Site map">
  237.            <li>
  238.              <a href="https://www.ibm.com/sitemap/us/en/">Site map</a>
  239.            </li>
  240.          </ul>
  241.          <div id="ibm-search-module" role="search" aria-labelledby="ibm-masthead">
  242.  
  243.            <form id="ibm-search-form" action="https://www.ibm.com/Search/" method="get">
  244.              <p>
  245.                <label for="q">
  246.                  <span class="ibm-access">Search</span>
  247.                </label>
  248.                <input type="text" maxlength="100" value="" name="q" id="q" />
  249.                <input type="hidden" value="17" name="v" />
  250.                <input type="hidden" value="utf" name="en" />
  251.                <input type="hidden" value="en" name="lang" />
  252.                <input type="hidden" value="us" name="cc" />
  253.                <input type="submit" id="ibm-search" class="ibm-btn-search" value="Send" />
  254.              </p>
  255.  
  256.            </form>
  257.          </div>
  258.        </div>
  259.      </div>
  260.      <div id="ibm-content-wrapper 404-opt-trg">
  261.        <main role="main" aria-labelledby="ibm-pagetitle-h1">
  262.          <div id="ibm-pcon">
  263.            <div id="ibm-content">
  264.              <div id="ibm-content-body" class="ibm-pt-0">
  265.  
  266.                <section class="ibm-band ibm-padding-top-r2 ibm-padding-bottom-r2 ibm-background-gray-90 ibm-alternate-background" data-widget="setsameheight" data-items=".ibm-grid-col-sm-4-2">
  267.                  <div class="ibm-grid-container">
  268.                    <div class="ibm-grid-col-sm-4-4 ibm-grid-col-md-8-4">
  269.                      
  270.                      <h1 class="ibm-type-l ibm-mb-1">We’re sorry!</h1>
  271.                      <p class="ibm-type-e ibm-pb-3 ibm-light">The page you're looking for may have been moved or deleted. Start a new search on ibm.com or visit one of the popular sites shown below.</p>
  272.                      
  273.                      <div class="search-holder">
  274.                        <div class="ibm-gmktp-search ibm-pb-3 ibm-fleft">
  275.                        
  276.                        
  277.                          <form id="ibm-search-form" class="ibm-row-form" action="https://www.ibm.com/Search/?exp=404" method="get">
  278.                        
  279.                          
  280.                            <p>
  281.                                <label for="q">
  282.                                  <span class="ibm-access">Search</span>
  283.                                </label>
  284.                              <input type="text" maxlength="100" value="" placeholder="Search" name="q" id="q" aria-label="Search"
  285.                                     style="width:100%; border-top: 1px solid #393939; border-bottom: 1px solid #e0e0e0;border-left: 1px solid #393939;border-right: 1px solid #393939;" />
  286.                              <input type="hidden" value="18" name="v" />
  287.                              <input type="hidden" value="utf" name="en" />
  288.                              <input type="hidden" value="en" name="lang" />
  289.                              <input type="hidden" value="us" name="cc" />
  290.                              <input type="hidden" value="404_us" name="exp" />
  291.                            </p>
  292.                            <a href="https://www.ibm.com/Search/?exp=404" id="ibm-gmktp-search-bttn" class="ibm-search-link"></a>
  293.                          </form>
  294.  
  295.                        </div>
  296.                      </div>
  297.  
  298.                      <div class="ibm-clear"></div>
  299.                    
  300.                    </div>
  301.                    <div class="ibm-grid-col-sm-4-0 ibm-grid-col-md-8-4 ibm-vertical-center">
  302.                      <p class="ibm-textcolor-gray-30 ibm-type-j ibm-center-block"></p>
  303.                    </div>
  304.                  </div>
  305.                </section>
  306.  
  307.                <section class="ibm-band ibm-background-gray-80 ibm-alternate-background ibm-pt-4 ibm-pb-2" id="explore">
  308.                  <div class="ibm-grid-container">
  309.                    <div class="ibm-grid-col-sm-4-4">
  310.                      <h1 class="ibm-type-e ibm-mb-2">Continue exploring</h1>
  311.                      <div class="ibm-grid-container">
  312.                        <div class="ibm-grid-col-sm-4-2 ibm-grid-col-md-8-2 ibm-grid-col-lg-16-4 ibm-pb-2">
  313.                         <p class="ibm-ind-link"><a href="https://www.ibm.com/" class="ibm-bee-link"><span>IBM Homepage</span></a></p>
  314.                        </div>
  315.                        <div class="ibm-grid-col-sm-4-2 ibm-grid-col-md-8-2 ibm-grid-col-lg-16-4 ibm-pb-2">
  316.                         <p class="ibm-ind-link"><a href="https://www.ibm.com/products" class="ibm-cart-link"><span>Our products</span></a></p>          
  317.                        </div>
  318.                        <div class="ibm-grid-col-sm-4-2 ibm-grid-col-md-8-2 ibm-grid-col-lg-16-4 ibm-pb-2">
  319.                         <p class="ibm-ind-link"><a href="https://www.ibm.com/employment" class="ibm-user-follow-link"><span>Careers</span></a></p>
  320.                        </div>
  321.                        <div class="ibm-grid-col-sm-4-2 ibm-grid-col-md-8-2 ibm-grid-col-lg-16-4 ibm-pb-2">
  322.                         <p class="ibm-ind-link"><a href="https://www.ibm.com/contact/" class="ibm-phone-link"><span>Contact us</span></a></p>
  323.                    
  324.                        </div>
  325.                      </div>
  326.                    
  327.                    </div>
  328.                  </div>
  329.                </section>
  330.  
  331.  
  332.              
  333.              </div>
  334.            </div>
  335.          </div>
  336.        </main>
  337.      </div>
  338.  
  339.    
  340.      <div id="ibm-footer-module"> </div>
  341.  
  342.      <footer role="contentinfo" aria-label="IBM">
  343.        <div id="ibm-footer">
  344.          <h2 class="ibm-access">Strategic references</h2>
  345.          <ul>
  346.            <li>
  347.              <a href="https://www.ibm.com/contact/us/en/">Contact</a>
  348.            </li>
  349.            <li>
  350.              <a href="https://www.ibm.com/privacy/us/en/">Privacy protection</a>
  351.            </li>
  352.            <li>
  353.              <a href="https://www.ibm.com/legal/us/en/">Terms of use</a>
  354.            </li>
  355.          </ul>
  356.        </div>
  357.      </footer>
  358.  
  359.    </div>
  360.  
  361.  </body>
  362.  
  363. </html>
  364.  
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda