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://ketsatnganhang.hatenablog.com/entry/2019/08/07/013223

  1. <!DOCTYPE html>
  2. <html
  3.  lang="ja"
  4. data-admin-domain="//blog.hatena.ne.jp"
  5. data-admin-origin="https://blog.hatena.ne.jp"
  6. data-avail-langs="ja en"
  7. data-data-layer="{&quot;hatenablog&quot;:{&quot;admin&quot;:{},&quot;analytics&quot;:{&quot;brand_property_id&quot;:&quot;&quot;,&quot;measurement_id&quot;:&quot;&quot;,&quot;non_sampling_property_id&quot;:&quot;&quot;,&quot;property_id&quot;:&quot;&quot;,&quot;separated_property_id&quot;:&quot;UA-29716941-25&quot;},&quot;blog&quot;:null,&quot;brand&quot;:&quot;&quot;,&quot;page_id&quot;:&quot;entry&quot;,&quot;permalink_entry&quot;:null,&quot;pro&quot;:&quot;free&quot;,&quot;router_type&quot;:&quot;blogs&quot;}}"
  8. data-device="pc"
  9. data-dont-recommend-pro="false"
  10. data-global-domain="https://hatenablog.com"
  11. data-globalheader-color="w"
  12. data-globalheader-type="pc"
  13. data-help-url="https://help.hatenablog.com"
  14. data-page="entry"
  15. data-parts-domain="https://hatenablog-parts.com"
  16. data-plus-available=""
  17. data-pro="false"
  18. data-router-type="blogs"
  19. data-sentry-dsn="https://03a33e4781a24cf2885099fed222b56d@sentry.io/1195218"
  20. data-sentry-environment="production"
  21. data-sentry-sample-rate="0.1"
  22. data-static-domain="https://cdn.blog.st-hatena.com"
  23. data-version="f759032a2b612b81088dc82cde262f"
  24.  
  25.  data-initial-state="{}"
  26.  
  27.  >
  28.  <head prefix="og: http://ogp.me/ns# fb: http://ogp.me/ns/fb#">
  29.    <meta charset="utf-8"/>
  30.    
  31.      <meta name="viewport" content="width=device-width">
  32.    
  33.  
  34.    
  35.  
  36.    
  37.    
  38.  
  39.    <title>お探しのページは見つかりませんでした。 - はてなブログ</title>
  40.  
  41.    
  42. <script
  43.  id="embed-gtm-data-layer-loader"
  44.  data-data-layer-page-specific=""
  45. >
  46. (function() {
  47.  function loadDataLayer(elem, attrName) {
  48.    if (!elem) { return {}; }
  49.    var json = elem.getAttribute(attrName);
  50.    if (!json) { return {}; }
  51.    return JSON.parse(json);
  52.  }
  53.  
  54.  var globalVariables = loadDataLayer(
  55.    document.documentElement,
  56.    'data-data-layer'
  57.  );
  58.  var pageSpecificVariables = loadDataLayer(
  59.    document.getElementById('embed-gtm-data-layer-loader'),
  60.    'data-data-layer-page-specific'
  61.  );
  62.  
  63.  var variables = [globalVariables, pageSpecificVariables];
  64.  
  65.  if (!window.dataLayer) {
  66.    window.dataLayer = [];
  67.  }
  68.  
  69.  for (var i = 0; i < variables.length; i++) {
  70.    window.dataLayer.push(variables[i]);
  71.  }
  72. })();
  73. </script>
  74.  
  75. <!-- Google Tag Manager -->
  76. <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
  77. new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
  78. j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
  79. 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
  80. })(window,document,'script','dataLayer','GTM-P4CXTW');</script>
  81. <!-- End Google Tag Manager -->
  82.  
  83.  
  84.  
  85.  
  86.    <link rel="shortcut icon" href="https://cdn.blog.st-hatena.com/images/favicon.png" />
  87.  
  88.    <link rel="apple-touch-icon" sizes="76x76" href="https://cdn.blog.st-hatena.com/images/touch-icon-ipad.png?version=f759032a2b612b81088dc82cde262f">
  89.    <link rel="apple-touch-icon" sizes="120x120" href="https://cdn.blog.st-hatena.com/images/touch-icon-iphone-retina.png?version=f759032a2b612b81088dc82cde262f">
  90.    <link rel="apple-touch-icon" sizes="152x152" href="https://cdn.blog.st-hatena.com/images/touch-icon-ipad-retina.png?version=f759032a2b612b81088dc82cde262f">
  91.    <link rel="icon" sizes="192x192" href="https://cdn.blog.st-hatena.com/images/common/meta-icon-global.png?version=f759032a2b612b81088dc82cde262f">
  92.  
  93.    
  94.  
  95.  <link rel="stylesheet" type="text/css" href="https://cdn.blog.st-hatena.com/css/service.css?version=f759032a2b612b81088dc82cde262f"/>
  96.  
  97.  
  98.  
  99.    
  100.  
  101.  <meta property="og:image" content="https://cdn.blog.st-hatena.com/images/theme/og-image-1500.png"/>
  102.  <meta name="twitter:image" content="https://cdn.blog.st-hatena.com/images/theme/og-image-1500.png"/>
  103.  
  104.  
  105.  <meta property="og:title" content="お探しのページは見つかりませんでした。 - はてなブログ" />
  106.  <meta name="twitter:title" content="お探しのページは見つかりませんでした。 - はてなブログ" />
  107. <meta name="twitter:card" content="summary_large_image" />
  108. <meta name="twitter:site" content="@hatenablog" />
  109.  
  110.  
  111.  
  112.  
  113. <meta name="msvalidate.01" content="50E6CC82C013578F03B988A098225F69" />
  114.  
  115.  </head>
  116.  
  117.  <body class="hatena-diary-top global-page page-entry page-is-responsive page-admin-404 globalheader-ng-enabled">
  118.  
  119.  <div id="fb-root"></div>
  120. <script>(function(d, s, id) {
  121.  var js, fjs = d.getElementsByTagName(s)[0];
  122.  if (d.getElementById(id)) return;
  123.  js = d.createElement(s); js.id = id;
  124.  js.src = "//connect.facebook.net/ja_JP/sdk.js#xfbml=1&appId=719729204785177&version=v17.0";
  125.  fjs.parentNode.insertBefore(js, fjs);
  126. }(document, 'script', 'facebook-jssdk'));</script>
  127.  
  128.  
  129.  
  130.  
  131.  
  132. <div id="globalheader-container"
  133.  data-brand="hatenablog"
  134.  
  135.  
  136.  
  137.  >
  138.  <iframe id="globalheader" height="37" frameborder="0" allowTransparency="true"></iframe>
  139. </div>
  140.  
  141.  
  142.  
  143.  
  144. <div id="container">
  145.  <header class="header">
  146.    <h1>404 Blog is not found</h1>
  147.    <div class="error-message-content">
  148.      <p>お探しのページは見つかりませんでした。</p>
  149.    </div>
  150.  </header>
  151.  
  152.  <div class="error-message-link">
  153.    <ul class="error-message-link-list">
  154.      <li><a href="https://hatenablog.com/">はてなブログ トップ</a></li>
  155.      <li><a href="https://help.hatenablog.com">はてなブログ ヘルプ</a></li>
  156.    </ul>
  157.  </div>
  158. </div>
  159.  
  160.  
  161.  
  162. <div class="footer">
  163.  <div class="footer-inner">
  164.    <div class="footer-content">
  165.      <div class="footer-content-heading">
  166.        <div class="footer-content-logo">
  167.          <a href="https://hatenablog.com/">
  168.            <img src="https://cdn.blog.st-hatena.com/images/common/logo-hatenablog-wh.svg?version=f759032a2b612b81088dc82cde262f" alt="はてなブログ" width="160" height="28" />
  169.          </a>
  170.        </div>
  171.        <span class="footer-lead">思いは言葉に。</span>
  172.        <div class="footer-social-contents">
  173.          <span class="footer-social-lead">Follow us</span>
  174.          <a
  175.            href="https://twitter.com/hatenablog" target="_blank"
  176.            rel="noopener"
  177.            class="footer-social-link footer-social-link-x gtm-click-measurement-target"
  178.            data-track-name="entry-service-footer-social-twitter"
  179.            data-track-once data-gtm-action-name="service-footer-social-twitter"
  180.          >
  181.            <img src="https://cdn.blog.st-hatena.com/images/external-service/icon-x.svg?version=f759032a2b612b81088dc82cde262f" alt="X">
  182.          </a>
  183.          <a
  184.            href="https://www.facebook.com/hatenablog/" target="_blank"
  185.            rel="noopener"
  186.            class="footer-social-link gtm-click-measurement-target"
  187.            data-track-name="entry-service-footer-social-twitter"
  188.            data-track-once data-gtm-action-name="service-footer-social-facebook"
  189.          >
  190.            <img src="https://cdn.blog.st-hatena.com/images/external-service/icon-facebook.svg?version=f759032a2b612b81088dc82cde262f" alt="Facebook">
  191.          </a>
  192.        </div>
  193.      </div>
  194.      <div class="footer-box-wrapper">
  195.        <div class="footer-box">
  196.          <h4 class="js-footer-box-heading">個人の方</h4>
  197.          <ul>
  198.            <li><a href="https://hatenablog.com/guide?via=200146" data-inherit-via>初めての方へ(個人の方)</a></li>
  199.            <li><a href="https://hatenablog.com/guide/compare?via=200146" data-inherit-via>料金・プラン</a></li>
  200.            <li><a href="https://hatenablog.com/guide/pro?plus_via=blogs_service_footer">はてなブログPro</a></li>
  201.            <li><a href="https://hatenablog.com/guide/creator">クリエイターのためのはてなブログ</a></li>
  202.          </ul>
  203.        </div>
  204.        <div class="footer-box">
  205.          <h4 class="js-footer-box-heading">法人の方</h4>
  206.          <ul>
  207.            <li><a href="https://hatenablog.com/guide/corporation">法人プラン</a></li>
  208.            <li><a href="https://help.hatenablog.com/guide/support/oss">OSSコミュニティ支援プログラム</a></li>
  209.            <li><a href="https://help.hatenablog.com/guide/support/education">学校支援プログラム</a></li>
  210.            <li><a href="https://hatenablog.com/guide/npo">NPO支援プログラム</a></li>
  211.            <li><a href="https://hatenablog.com/guide/library">図書館支援プログラム</a></li>
  212.            <li><a href="http://hatenasales.g.hatena.ne.jp/">広告掲載について</a></li>
  213.          </ul>
  214.        </div>
  215.        <div class="footer-box">
  216.          <h4 class="js-footer-box-heading">ブログを書く</h4>
  217.          <ul>
  218.            <li><a href="https://blog.hatena.ne.jp">ブログを管理</a></li>
  219.            <li><a href="https://hatenablog.com/guide/academy">はてなブログ アカデミー</a></li>
  220.            <li><a href="https://hatenablog.com/guide/app">アプリ</a></li>
  221.            <li><a href="https://blog.hatena.ne.jp/-/store/theme/">テーマ ストア</a></li>
  222.            <li><a href="https://blog.hatena.ne.jp/-/group/">グループ</a></li>
  223.            <li><a href="https://blog.hatena.ne.jp/-/campaign/odai">今週のお題</a></li>
  224.          </ul>
  225.        </div>
  226.        <div class="footer-box">
  227.          <h4 class="js-footer-box-heading">ヘルプ・お知らせ</h4>
  228.          <ul>
  229.            <li><a href="https://help.hatenablog.com">ヘルプ</a></li>
  230.            <li><a href="http://staff.hatenablog.com">はてなブログ開発ブログ</a></li>
  231.            <li><a href="http://blog.hatenablog.com/">週刊はてなブログ</a></li>
  232.            <li><a href="http://www.hatena.ne.jp/maintenance">障害情報</a></li>
  233.            <li><a href="https://hatena.zendesk.com/hc/ja/categories/900000152943">FAQ / お問い合わせ窓口</a></li>
  234.            <li><a href="https://policies.hatena.ne.jp/rule">利用規約</a></li>
  235.            <li><a href="https://policies.hatena.ne.jp/privacypolicy-ja">プライバシーポリシー</a></li>
  236.            <li><a href="https://help.hatenablog.com/entry/external/terms_and_policy">外部連携機能プライバシーポリシー</a></li>
  237.            <li><a href="https://policies.hatena.ne.jp/cookie-policy">利用者情報の外部送信について</a></li>
  238.          </ul>
  239.        </div>
  240.      </div>
  241.    </div>
  242.    <div style="display: none">
  243.      
  244.      <a href="?locale.lang=ja" data-lang="ja" class="selected">日本語</a>
  245.      
  246.      <a href="?locale.lang=en" data-lang="en" >English</a>
  247.      
  248.    </div>
  249.    <address class="footer-address">
  250.      <div class="footer-address-copyright">
  251.        <span>Copyright (C) 2001-2024 Hatena. All Rights Reserved.</span><br>
  252.      </div>
  253.      <div class="footer-address-app">
  254.        <a href="https://itunes.apple.com/jp/app/hatenablog/id583299321" target="_blank" rel="noopener"><img src="https://cdn.blog.st-hatena.com/images/banner/Download_on_the_App_Store_Badge_US-UK_135x40.svg?version=f759032a2b612b81088dc82cde262f" alt="Download on the App Store"></a>
  255.        <a href="https://play.google.com/store/apps/details?id=jp.ne.hatena.blog" target="_blank" rel="noopener"><img src="https://cdn.blog.st-hatena.com/images/banner/google-play-badge.png?version=f759032a2b612b81088dc82cde262f" height="40px" alt="Get it on Google Play"></a>
  256.      </div>
  257.    </address>
  258.  </div>
  259. </div>
  260.  
  261. <script async src="https://s.hatena.ne.jp/js/widget/star.js"></script>
  262.  
  263.  
  264.  
  265.  
  266.  
  267.  <script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>
  268.  
  269. <script src="https://b.st-hatena.com/js/bookmark_button.js" charset="utf-8" async="async"></script>
  270.  
  271.  
  272. <script type="text/javascript" src="https://cdn.blog.st-hatena.com/js/external/jquery.min.js?v=1.12.4&amp;version=f759032a2b612b81088dc82cde262f"></script>
  273.  
  274.  
  275.  
  276.  
  277.  
  278.  
  279.  
  280. <script src="https://cdn.blog.st-hatena.com/js/texts-ja.js?version=f759032a2b612b81088dc82cde262f"></script>
  281.  
  282.  
  283.  
  284.  <script id="vendors-js" data-env="production" src="https://cdn.blog.st-hatena.com/js/vendors.js?version=f759032a2b612b81088dc82cde262f" crossorigin="anonymous"></script>
  285.  
  286. <script id="hatenablog-js" data-env="production" src="https://cdn.blog.st-hatena.com/js/hatenablog.js?version=f759032a2b612b81088dc82cde262f" crossorigin="anonymous" data-page-id="entry"></script>
  287.  
  288.  
  289.  <script>Hatena.Diary.GlobalHeader.init()</script>
  290.  
  291.  
  292.  
  293.  
  294.  
  295.  
  296.  
  297.  
  298.  
  299.  
  300.  
  301.  
  302.  
  303.  
  304.  
  305.  
  306.  
  307.  
  308.  
  309.  
  310.  
  311.  
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda