{"id":4937,"date":"2024-07-06T13:33:25","date_gmt":"2024-07-06T05:33:25","guid":{"rendered":"https:\/\/seo.tenten.co\/en\/?p=4937"},"modified":"2024-07-06T13:39:15","modified_gmt":"2024-07-06T05:39:15","slug":"google-lighthouse-an-ethical-hackers-manual-for-enhancing-user-experience-and-search-engine-visibility-2024","status":"publish","type":"post","link":"https:\/\/seo.tenten.co\/ja\/advanced-seo\/google-lighthouse-\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3068\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306e\/","title":{"rendered":"Google Lighthouse: \u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3068\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306e\u53ef\u8996\u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u306e\u502b\u7406\u7684\u306a\u30cf\u30c3\u30ab\u30fc\u306e\u30de\u30cb\u30e5\u30a2\u30eb (2024)"},"content":{"rendered":"<p>Google Lighthouse \u306f\u3001\u958b\u767a\u8005\u5411\u3051\u306b Web \u30da\u30fc\u30b8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u30b2\u30fc\u30e0\u5316\u3057\u3001\u5411\u4e0a\u3055\u305b\u308b\u6700\u3082\u52b9\u7387\u7684\u306a\u65b9\u6cd5\u306e 1 \u3064\u3068\u3057\u3066\u969b\u7acb\u3063\u3066\u3044\u307e\u3059\u3002Lighthouse \u3092\u5229\u7528\u3059\u308b\u3068\u3001\u5168\u4f53\u7684\u306a\u6709\u52b9\u6027\u3001\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u3001SEO\u3001\u304a\u3088\u3073 Google \u304c\u63a8\u5968\u3059\u308b\u300c\u30d9\u30b9\u30c8 \u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u300d\u306e\u89b3\u70b9\u304b\u3089 Web \u30da\u30fc\u30b8\u3092\u8a55\u4fa1\u3067\u304d\u307e\u3059\u3002\u3059\u3079\u3066\u30dc\u30bf\u30f3\u3092\u62bc\u3059\u3060\u3051\u3067\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3089\u306e\u30c6\u30b9\u30c8\u306f\u3001\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9 \u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u8a55\u4fa1\u3057\u305f\u308a\u3001\u7dbf\u5bc6\u306a\u518d\u7de8\u6210\u306b\u3088\u3063\u3066\u9054\u6210\u3055\u308c\u305f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a\u3092\u5ba3\u4f1d\u3057\u305f\u308a\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u30bd\u30fc\u30b7\u30e3\u30eb \u30e1\u30c7\u30a3\u30a2\u3067\u5b8c\u74a7\u306a Lighthouse \u8a55\u4fa1\u3092\u8868\u793a\u3059\u308b\u3053\u3068\u306f\u9593\u9055\u3044\u306a\u304f\u6e80\u8db3\u611f\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002\u305d\u308c\u306f\u3001\u76db\u5927\u306a\u795d\u8cc0\u4f1a\u306b\u3075\u3055\u308f\u3057\u3044\u3001\u540d\u8a89\u3042\u308b\u6210\u679c\u3067\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/i.imgur.com\/iMFkp1S.gif\" alt=\"Google \u706f\u53f0\u3067 4 x 100 \u306e\u8a55\u4fa1\u3092\u8868\u793a\u3057\u3001\u5468\u56f2\u306b\u7d19\u5439\u96ea\u304c\u821e\u3046\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3 GIF\" \/><\/p>\n<p>Lighthouse \u304c\u79c1\u305f\u3061\u306e\u3088\u3046\u306a\u958b\u767a\u8005\u306e\u9593\u3067\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u95a2\u3059\u308b\u4f1a\u8a71\u3092\u523a\u6fc0\u3057\u3066\u3044\u308b\u3068\u3044\u3046\u4e8b\u5b9f\u306f\u3001\u52dd\u5229\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u3053\u306e\u554f\u984c\u306e\u91cd\u8981\u6027\u3092\u7121\u8996\u3059\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001Web \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306f\u306f\u308b\u304b\u306b\u8907\u96d1\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001Google Lighthouse \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a55\u4fa1\u306e\u80cc\u5f8c\u306b\u3042\u308b\u65b9\u6cd5\u8ad6\u3092\u63a2\u308a\u3001\u3053\u306e\u77e5\u8b58\u3092\u6d3b\u7528\u3057\u3066\u3001\u305d\u306e\u7d50\u679c\u3092\u6709\u5229\u306b\u64cd\u4f5c\u3057\u3088\u3046\u3068\u3057\u307e\u3059\u3002 <strong>\u3059\u3079\u3066\u306f\u697d\u3057\u307f\u3068\u63a2\u6c42\u306e\u7cbe\u795e\u3067<\/strong> \u2013 \u7d50\u5c40\u306e\u3068\u3053\u308d\u3001Lighthouse \u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u554f\u984c\u3092\u8a3a\u65ad\u3059\u308b\u305f\u3081\u306e\u4fe1\u983c\u3067\u304d\u308b\u5927\u307e\u304b\u306a\u30ac\u30a4\u30c9\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002Lighthouse \u3092\u697d\u3057\u307f\u306a\u304c\u3089\u3001\u6b63\u5f53\u306b\u5f97\u3089\u308c\u308b\u30b9\u30b3\u30a2\u3092\u8d85\u3048\u3066\u6539\u5584\u3055\u308c\u305f\u30b9\u30b3\u30a2\u3092\u63d0\u793a\u3059\u308b\u305f\u3081\u306b\u3001\u3069\u308c\u3060\u3051 Lighthouse \u3092\u51fa\u3057\u629c\u304f\u3053\u3068\u304c\u3067\u304d\u308b\u304b\u89b3\u5bdf\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u3057\u304b\u3057\u305d\u306e\u524d\u306b\u3001\u30c7\u30fc\u30bf\u3092\u8a73\u3057\u304f\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2><a id=\"field-data-is-essential-field-data-is-essential\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><a href=\"#field-data-is-important\"><\/a>\u30d5\u30a3\u30fc\u30eb\u30c9\u30c7\u30fc\u30bf\u306f\u4e0d\u53ef\u6b20<\/h2>\n<p>\u30ed\u30fc\u30ab\u30eb \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a55\u4fa1\u306f\u3001Web \u30b5\u30a4\u30c8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u826f\u3044\u65b9\u5411\u306b\u9032\u3093\u3067\u3044\u308b\u304b\u3069\u3046\u304b\u306b\u95a2\u3059\u308b\u8cb4\u91cd\u306a\u6d1e\u5bdf\u3092\u63d0\u4f9b\u3057\u307e\u3059\u304c\u3001\u73fe\u5b9f\u3092\u5b8c\u5168\u306b\u53cd\u6620\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306f\u7121\u9650\u306e\u591a\u69d8\u6027\u306e\u9818\u57df\u3067\u3042\u308a\u3001Web \u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u500b\u4eba\u304c\u4f7f\u7528\u3059\u308b\u30c7\u30d0\u30a4\u30b9\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u901f\u5ea6\u3001\u753b\u9762\u30b5\u30a4\u30ba\u3001\u30d6\u30e9\u30a6\u30b6\u30fc\u3001\u30d6\u30e9\u30a6\u30b6\u30fc \u30d0\u30fc\u30b8\u30e7\u30f3\u306a\u3069\u3001\u30da\u30fc\u30b8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3084\u30e6\u30fc\u30b6\u30fc \u30a4\u30f3\u30bf\u30e9\u30af\u30b7\u30e7\u30f3\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u3055\u307e\u3056\u307e\u306a\u30c7\u30d0\u30a4\u30b9\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u901f\u5ea6\u3001\u753b\u9762\u30b5\u30a4\u30ba\u3001\u30d6\u30e9\u30a6\u30b6\u30fc \u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u79c1\u305f\u3061\u306f\u628a\u63e1\u3067\u304d\u3066\u3044\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>Sentry \u306e\u3088\u3046\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3 \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30e2\u30cb\u30bf\u30ea\u30f3\u30b0 \u30c4\u30fc\u30eb\u306b\u3088\u3063\u3066\u3001\u5b9f\u969b\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u81ea\u5206\u306e\u30c7\u30d0\u30a4\u30b9\u3067 Web \u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u53ce\u96c6\u3057\u305f\u5927\u91cf\u306e\u30d5\u30a3\u30fc\u30eb\u30c9 \u30c7\u30fc\u30bf\u306f\u3001\u5236\u5fa1\u3055\u308c\u305f\u74b0\u5883\u4e0b\u3067\u9ad8\u6027\u80fd\u306a\u958b\u767a\u8005\u30de\u30b7\u30f3\u3092\u4f7f\u7528\u3057\u3066\u5358\u4e00\u306e\u30b5\u30f3\u30d7\u30eb\u304b\u3089\u53d6\u5f97\u3057\u305f\u30e9\u30dc \u30c7\u30fc\u30bf\u3068\u6bd4\u8f03\u3057\u3066\u3001Web \u30b5\u30a4\u30c8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u3088\u308a\u6b63\u78ba\u306a\u8a55\u4fa1\u3092\u63d0\u4f9b\u3057\u307e\u3059\u30022021 \u5e74\u306b Philip Walton \u304c\u516c\u958b\u3057\u305f HTTP \u30a2\u30fc\u30ab\u30a4\u30d6\u306e\u30c7\u30fc\u30bf\u3067\u306f\u3001\u300cLighthouse \u3067 100 \u70b9\u3092\u7372\u5f97\u3057\u305f\u30da\u30fc\u30b8\u306e\u307b\u307c\u534a\u6570\u304c\u3001\u63a8\u5968\u3055\u308c\u308b Core Web Vitals \u3057\u304d\u3044\u5024\u3092\u6e80\u305f\u3057\u3066\u3044\u306a\u3044\u300d\u3053\u3068\u304c\u5f37\u8abf\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Web \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306f\u3001\u5358\u4e00\u306e\u30b3\u30a2 Web \u91cd\u8981\u6307\u6a19\u3084 Lighthouse \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a55\u4fa1\u306e\u7bc4\u56f2\u3092\u8d85\u3048\u3066\u3044\u307e\u3059\u3002\u79c1\u305f\u3061\u306e\u8b70\u8ad6\u306f\u3001\u79c1\u305f\u3061\u304c\u6271\u3046\u57fa\u672c\u7684\u306a\u30c7\u30fc\u30bf\u306e\u7a2e\u985e\u3092\u8d85\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2><a id=\"web-performance-encompasses-more-than-figures-web-performance-encompasses-more-than-figures\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><a href=\"#web-performance-is-more-than-numbers\"><\/a>\u30a6\u30a7\u30d6\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306f\u7d71\u8a08\u60c5\u5831\u4ee5\u4e0a\u306e\u3082\u306e\u3092\u542b\u3080<\/h2>\n<p><em>\u901f\u5ea6<\/em> \u30a6\u30a7\u30d6\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u95a2\u3059\u308b\u8b70\u8ad6\u3067\u306f\u3001\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u304c\u4e3b\u306a\u7126\u70b9\u3068\u306a\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u8003\u616e\u3059\u3079\u304d\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u304c\u3001\u901f\u5ea6\u306f\u30d3\u30b8\u30cd\u30b9\u76ee\u6a19\u3084\u58f2\u4e0a\u76ee\u6a19\u306b\u5927\u304d\u304f\u5de6\u53f3\u3055\u308c\u308b\u3053\u3068\u3092\u8a8d\u8b58\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u30022018\u5e74\u306bGoogle\u304c\u767a\u8868\u3057\u305f\u30ec\u30dd\u30fc\u30c8\u306b\u3088\u308b\u3068\u3001\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u6642\u9593\u304c3\u79d2\u3092\u8d85\u3048\u308b\u3068\u76f4\u5e30\u7387\u304c32%\u4e0a\u6607\u3059\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308a\u3001\u8aad\u307f\u8fbc\u307f\u6642\u9593\u304c10\u79d2\u3092\u8d85\u3048\u308b\u3068123%\u306b\u6025\u4e0a\u6607\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u58f2\u4e0a\u30b3\u30f3\u30d0\u30fc\u30b8\u30e7\u30f3\u7387\u3092\u9ad8\u3081\u308b\u306b\u306f\u3001\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u3092\u9ad8\u901f\u5316\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u76f4\u5e30\u7387\u3092\u4e0b\u3052\u308b\u4e3b\u306a\u76ee\u7684\u306f\u3001\u30da\u30fc\u30b8\u8aad\u307f\u8fbc\u307f\u3092\u9ad8\u901f\u5316\u3059\u308b\u3053\u3068\u3067\u3059\u3002 <em>\u8aad\u307f\u8fbc\u307f\u4e2d<\/em>.<\/p>\n<p>\u3057\u304b\u3057\u3001\u300c\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u304c\u901f\u3044\u300d\u3068\u306f\u5177\u4f53\u7684\u306b\u4f55\u3092\u610f\u5473\u3059\u308b\u306e\u3067\u3057\u3087\u3046\u304b? \u30a6\u30a7\u30d6\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u3092\u7269\u7406\u7684\u306b\u52a0\u901f\u3067\u304d\u306a\u3044\u9650\u754c\u304c\u3042\u308a\u307e\u3059\u3002\u4eba\u9593\u3068\u3001\u4eba\u9593\u3068\u4eba\u9593\u3092\u3064\u306a\u3050\u30b5\u30fc\u30d0\u30fc\u306f\u4e16\u754c\u4e2d\u306b\u5206\u6563\u3057\u3066\u304a\u308a\u3001\u73fe\u4ee3\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306f\u3001\u7279\u5b9a\u306e\u6642\u9593\u306b\u9650\u3089\u308c\u305f\u91cf\u306e\u30c7\u30fc\u30bf\u3057\u304b\u9001\u4fe1\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u554f\u984c\u306e\u6838\u5fc3\u306f\u3001\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u304c\u5358\u4e00\u306e\u77ac\u9593\u3092\u8868\u3059\u308f\u3051\u3067\u306f\u306a\u3044\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u300c\u901f\u5ea6\u3068\u306f\u4f55\u304b?\u300d\u3068\u3044\u3046\u8a18\u4e8b\u3067\u3001Google \u306f\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u3092\u6b21\u306e\u3088\u3046\u306b\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<blockquote>\n<p>\u3053\u308c\u306f\u3001\u5358\u4e00\u306e\u6307\u6a19\u3067\u5b8c\u5168\u306b\u7db2\u7f85\u3067\u304d\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u8aad\u307f\u8fbc\u307f\u30d7\u30ed\u30bb\u30b9\u4e2d\u306e\u3055\u307e\u3056\u307e\u306a\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u305d\u308c\u3092\u300c\u901f\u3044\u300d\u3068\u8a8d\u8b58\u3059\u308b\u304b\u3069\u3046\u304b\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u30011 \u3064\u3060\u3051\u306b\u7126\u70b9\u3092\u5f53\u3066\u308b\u3068\u3001\u6b8b\u308a\u306e\u6642\u9593\u67a0\u3067\u767a\u751f\u3059\u308b\u5426\u5b9a\u7684\u306a\u30a4\u30d9\u30f3\u30c8\u3092\u898b\u9003\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/blockquote>\n<p>\u3053\u3053\u3067\u91cd\u8981\u306a\u7528\u8a9e\u306f <em>\u7d4c\u9a13<\/em>\u672c\u7269\u306e\u30a6\u30a7\u30d6\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306f <em>\u30e1\u30c8\u30ea\u30af\u30b9<\/em> \u305d\u3057\u3066 <em>\u901f\u5ea6<\/em>\u3001\u3088\u308a\u91cd\u70b9\u3092\u7f6e\u304f <em>\u79c1\u305f\u3061\u304c\u3069\u306e\u3088\u3046\u306b\u8a8d\u8b58\u3059\u308b\u304b<\/em> \u30e6\u30fc\u30b6\u30fc\u3068\u3057\u3066\u3001\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u3068\u30da\u30fc\u30b8\u306e\u64cd\u4f5c\u6027\u306b\u3064\u3044\u3066\u8003\u3048\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001Google Lighthouse \u304c\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a55\u4fa1\u3092\u8a08\u7b97\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306e\u4f1a\u8a71\u306b\u81ea\u7136\u3068\u3064\u306a\u304c\u308a\u307e\u3059 (\u3053\u308c\u306f\u3001\u60f3\u50cf\u3055\u308c\u308b\u307b\u3069\u7d14\u7c8b\u306a\u901f\u5ea6\u306b\u95a2\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093)\u3002<\/p>\n<h2><a id=\"how-is-the-google-lighthouse-performance-score-determined-how-is-the-google-lighthouse-performance-score-calculated\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><a href=\"#how-is-the-google-lighthouse-performance-score-calculated\"><\/a>Google Lighthouse \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30b9\u30b3\u30a2\u306f\u3069\u306e\u3088\u3046\u306b\u6c7a\u5b9a\u3055\u308c\u307e\u3059\u304b?<\/h2>\n<p>Google Lighthouse\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30b9\u30b3\u30a2\u306e\u8a08\u7b97\u306b\u306f\u3001\u30b3\u30a2\u30a6\u30a7\u30d6\u30d0\u30a4\u30bf\u30eb\u30e1\u30c8\u30ea\u30c3\u30af\uff08\u4f8b\uff1aFirst Contentful Paint\uff08FCP\uff09\u3001Largest Contentful Paint\uff08LCP\uff09\u3001Cumulative Layout Shift\uff08CLS\uff09\uff09\u3068\u305d\u306e\u4ed6\u306e\u901f\u5ea6\u95a2\u9023\u30e1\u30c8\u30ea\u30c3\u30af\uff08\u4f8b\uff1aSpeed Index\uff08SI\uff09\u3001Total Blocking Time\uff08TBT\uff09\uff09\u304b\u3089\u5f97\u3089\u308c\u305f\u30b9\u30b3\u30a2\u306e\u52a0\u91cd\u7d71\u5408\u304c\u542b\u307e\u308c\u307e\u3059\u3002 <strong>\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u5168\u4f53\u306b\u308f\u305f\u3063\u3066\u660e\u3089\u304b<\/strong>.<\/p>\n<p>\u4ee5\u4e0b\u306b\u3001\u3053\u308c\u3089\u306e\u6307\u6a19\u304c\u5168\u4f53\u306e\u30b9\u30b3\u30a2\u5185\u3067\u3069\u306e\u3088\u3046\u306b\u91cd\u307f\u4ed8\u3051\u3055\u308c\u308b\u304b\u306e\u5185\u8a33\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u30e1\u30c8\u30ea\u30c3\u30af<\/th>\n<th>\u91cd\u307f\u4ed8\u3051\uff08%\uff09<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5408\u8a08\u30d6\u30ed\u30c3\u30af\u6642\u9593 (TBT)<\/td>\n<td>30<\/td>\n<\/tr>\n<tr>\n<td>\u7d2f\u7a4d\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8 (CLS)<\/td>\n<td>25<\/td>\n<\/tr>\n<tr>\n<td>\u6700\u5927\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u30da\u30a4\u30f3\u30c8 (LCP)<\/td>\n<td>25<\/td>\n<\/tr>\n<tr>\n<td>\u30d5\u30a1\u30fc\u30b9\u30c8 \u30b3\u30f3\u30c6\u30f3\u30c4 \u30da\u30a4\u30f3\u30c8 (FCP)<\/td>\n<td>10<\/td>\n<\/tr>\n<tr>\n<td>\u30b9\u30d4\u30fc\u30c9\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\uff08SI\uff09<\/td>\n<td>10<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5404\u30e1\u30c8\u30ea\u30c3\u30af\u3078\u306e\u91cd\u307f\u306e\u5272\u308a\u5f53\u3066\u306b\u3088\u308a\u3001Google \u304c\u512a\u308c\u305f\u30e6\u30fc\u30b6\u30fc \u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u306b\u8ca2\u732e\u3059\u308b\u3055\u307e\u3056\u307e\u306a\u8981\u7d20\u3092\u3069\u306e\u3088\u3046\u306b\u512a\u5148\u3059\u308b\u304b\u306b\u3064\u3044\u3066\u306e\u6d1e\u5bdf\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n<h3><a id=\"1-a-web-page-should-respond-to-user-input-1-a-web-page-should-respond-to-user-input\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><a href=\"#1-a-web-page-should-respond-to-user-input\"><\/a>1. \u30a6\u30a7\u30d6\u30da\u30fc\u30b8\u306f\u30e6\u30fc\u30b6\u30fc\u306e\u5165\u529b\u306b\u8fc5\u901f\u306b\u5fdc\u7b54\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b<\/h3>\n<p>\u4e3b\u306a\u52a0\u91cd\u6307\u6a19\u306f <strong>\u5408\u8a08\u30d6\u30ed\u30c3\u30af\u6642\u9593 (TBT)<\/strong>\u3001\u305d\u306e\u5f8c\u306e\u6301\u7d9a\u6642\u9593\u3092\u8abf\u3079\u308b\u30b2\u30fc\u30b8 <strong>\u30d5\u30a1\u30fc\u30b9\u30c8 \u30b3\u30f3\u30c6\u30f3\u30c4 \u30da\u30a4\u30f3\u30c8 (FCP)<\/strong> \u30e1\u30a4\u30f3 \u30b9\u30ec\u30c3\u30c9\u304c\u9577\u6642\u9593\u30d6\u30ed\u30c3\u30af\u3055\u308c\u3001\u30e6\u30fc\u30b6\u30fc \u30b3\u30de\u30f3\u30c9\u3078\u306e\u8fc5\u901f\u306a\u5fdc\u7b54\u304c\u59a8\u3052\u3089\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002\u30e1\u30a4\u30f3 \u30b9\u30ec\u30c3\u30c9\u3067 JavaScript \u30bf\u30b9\u30af\u304c 50 \u30df\u30ea\u79d2\u4ee5\u4e0a\u767a\u751f\u3059\u308b\u3068\u3001\u30e1\u30a4\u30f3 \u30b9\u30ec\u30c3\u30c9\u306f\u300c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u3066\u3044\u308b\u300d\u3068\u307f\u306a\u3055\u308c\u307e\u3059\u3002TBT \u3092\u524a\u6e1b\u3059\u308b\u3068\u3001Web \u30b5\u30a4\u30c8\u304c\u5b9f\u969b\u306e\u30e6\u30fc\u30b6\u30fc \u30a2\u30af\u30b7\u30e7\u30f3 (\u30ad\u30fc\u30dc\u30fc\u30c9\u5165\u529b\u3001\u30de\u30a6\u30b9 \u30af\u30ea\u30c3\u30af\u306a\u3069) \u306b\u5fdc\u7b54\u3059\u308b\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3><a id=\"2-a-web-page-should-render-valuable-content-without-unforeseen-visual-disruptions-2-a-web-page-should-render-valuable-content-with-no-unexpected-visual-shifts\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><a href=\"#2-a-web-page-should-load-useful-content-with-no-unexpected-visual-shifts\"><\/a>2. \u30a6\u30a7\u30d6\u30da\u30fc\u30b8\u306f\u4e88\u671f\u305b\u306c\u8996\u899a\u7684\u306a\u5909\u52d5\u306a\u304f\u3001\u95a2\u9023\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u8868\u793a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b<\/h3>\n<p>\u7d9a\u3044\u3066\u91cd\u8996\u3055\u308c\u308bLighthouse\u6307\u6a19\u306b\u306f\u3001 <strong>\u6700\u5927\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u30da\u30a4\u30f3\u30c8 (LCP)<\/strong> \u305d\u3057\u3066 <strong>\u7d2f\u7a4d\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8 (CLS)<\/strong>LCP\u306f\u3001\u30da\u30fc\u30b8\u306e\u4e3b\u8981\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u8aad\u307f\u8fbc\u307e\u308c\u305f\u3068\u304d\u306e\u8aad\u307f\u8fbc\u307f\u30d7\u30ed\u30bb\u30b9\u306e\u5206\u5c90\u70b9\u3092\u793a\u3057\u307e\u3059\u3002 <em>\u304a\u305d\u3089\u304f<\/em> \u30ed\u30fc\u30c9\u3055\u308c\u3066\u304a\u308a\u3001\u3057\u305f\u304c\u3063\u3066 <em>\u8cb4\u91cd\u306a<\/em>.<\/p>\n<p>\u4e3b\u8981\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u8aad\u307f\u8fbc\u307f\u304c\u5b8c\u4e86\u3057\u305f\u3068\u63a8\u5b9a\u3055\u308c\u308b\u6642\u70b9\u3067\u3001\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u30e6\u30fc\u30b6\u30fc\u30a8\u30f3\u30b2\u30fc\u30b8\u30e1\u30f3\u30c8\u3092\u78ba\u4fdd\u3057\u3001\u4e88\u671f\u3057\u306a\u3044\u8996\u899a\u7684\u6df7\u4e71\u3092\u9632\u3050\u305f\u3081\u306b\u3001\u8996\u899a\u7684\u306a\u4e00\u8cab\u6027\u3092\u7dad\u6301\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u7a81\u7136\u306e\u8996\u899a\u7684\u52d5\u304d\u306e\u5f71\u97ff\u3092\u53d7\u3051\u306a\u3044\uff08CLS\uff09\u3002\u7406\u60f3\u7684\u306aLCP\u6e2c\u5b9a\u306f\u30012.5\u79d2\u672a\u6e80\u306e\u6301\u7d9a\u6642\u9593\u3067\u3059\uff08\u3053\u308c\u306f\u3001Web\u30b5\u30a4\u30c8\u3092\u5e38\u306b\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306e\u52aa\u529b\u3092\u8003\u616e\u3059\u308b\u3068\u3001\u4e88\u60f3\u3088\u308a\u3082\u5927\u5e45\u306b\u9577\u3044\u3067\u3059\uff09\u3002 <em>\u3067\u304d\u308b\u3060\u3051\u65e9\u304f<\/em>).<\/p>\n<h3><a id=\"3-a-web-page-should-load-something-3-a-web-page-should-load-something\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><a href=\"#3-a-web-page-should-load-something\"><\/a>3. Web\u30da\u30fc\u30b8\u4e0a\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u8aad\u307f\u8fbc\u307f<\/h3>\n<p>\u306e <strong>\u30d5\u30a1\u30fc\u30b9\u30c8 \u30b3\u30f3\u30c6\u30f3\u30c4 \u30da\u30a4\u30f3\u30c8 (FCP)<\/strong> \u30e1\u30c8\u30ea\u30c3\u30af\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u753b\u9762\u4e0a\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u8b58\u5225\u3067\u304d\u308b\u30da\u30fc\u30b8\u8aad\u307f\u8fbc\u307f\u30d7\u30ed\u30bb\u30b9\u306e\u6700\u521d\u306e\u77ac\u9593\u3092\u8868\u3057\u307e\u3059\u3002 <strong>\u30b9\u30d4\u30fc\u30c9\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\uff08SI\uff09<\/strong> \u30da\u30fc\u30b8\u304c\u300c\u5b8c\u4e86\u300d\u72b6\u614b\u306b\u9054\u3059\u308b\u307e\u3067\u306e\u8aad\u307f\u8fbc\u307f\u30d7\u30ed\u30bb\u30b9\u4e2d\u306b\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u8996\u899a\u7684\u306b\u3069\u308c\u3060\u3051\u901f\u304f\u8868\u793a\u3055\u308c\u308b\u304b\u3092\u6e2c\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p>\u30da\u30fc\u30b8\u306e\u8a55\u4fa1\u306f\u3001HTTP \u30a2\u30fc\u30ab\u30a4\u30d6\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u7d71\u8a08\u3092\u4f7f\u7528\u3057\u305f\u5b9f\u969b\u306e Web \u30b5\u30a4\u30c8\u306e\u901f\u5ea6\u6e2c\u5b9a\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002\u512a\u308c\u305f FCP \u30e1\u30c8\u30ea\u30c3\u30af\u306f 1.8 \u79d2\u672a\u6e80\u3001\u512a\u308c\u305f SI \u30e1\u30c8\u30ea\u30c3\u30af\u306f 3.4 \u79d2\u672a\u6e80\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u306f\u3001\u901f\u5ea6\u306b\u3064\u3044\u3066\u8003\u3048\u308b\u3068\u304d\u306b\u4e88\u60f3\u3055\u308c\u308b\u3088\u308a\u3082\u9ad8\u3044\u5024\u3067\u3059\u3002<\/p>\n<h2><a id=\"usability-is-favored-over-raw-speed-usability-is-favored-over-raw-speed\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><a href=\"#usability-is-favored-over-raw-speed\"><\/a>\u7d14\u7c8b\u306a\u30b9\u30d4\u30fc\u30c9\u3088\u308a\u3082\u4f7f\u3044\u3084\u3059\u3055\u3092\u512a\u5148<\/h2>\n<p>Google Lighthouse \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a55\u4fa1\u3067\u306f\u3001\u901f\u5ea6\u3088\u308a\u3082\u4f7f\u3044\u3084\u3059\u3055\u304c\u91cd\u8996\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u306f\u9593\u9055\u3044\u3042\u308a\u307e\u305b\u3093\u3002SI \u3068 FCP \u304c\u4e26\u5916\u308c\u305f\u901f\u5ea6\u3092\u793a\u3057\u305f\u3068\u3057\u3066\u3082\u3001LCP \u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u304c\u9045\u308c\u3001\u8907\u96d1\u306a\u753b\u50cf\u3084\u5916\u90e8\u30b3\u30f3\u30c6\u30f3\u30c4\u306b\u3088\u3063\u3066\u8996\u899a\u7684\u306a\u5909\u5316\u304c\u751f\u3058\u308b\u305f\u3081\u306b CLS \u304c\u767a\u751f\u3059\u308b\u5834\u5408\u3001FCP \u306e\u8868\u793a\u304c\u308f\u305a\u304b\u306b\u9045\u308c\u308b\u304c CLS \u304c\u767a\u751f\u3057\u306a\u3044\u30b7\u30ca\u30ea\u30aa\u3068\u6bd4\u8f03\u3057\u3066\u3001\u5168\u4f53\u7684\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a55\u4fa1\u306f\u52a3\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001JavaScript \u304c\u30e1\u30a4\u30f3 \u30b9\u30ec\u30c3\u30c9\u3092 50 \u30df\u30ea\u79d2\u4ee5\u4e0a\u59a8\u5bb3\u3057\u3066\u30da\u30fc\u30b8\u306e\u5fdc\u7b54\u6027\u3092\u59a8\u3052\u308b\u3068\u3001\u30da\u30fc\u30b8\u306e FCP \u306e\u8868\u793a\u304c\u308f\u305a\u304b\u306b\u9045\u308c\u308b\u5834\u5408\u3088\u308a\u3082\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a55\u4fa1\u306b\u60aa\u5f71\u97ff\u304c\u53ca\u3073\u307e\u3059\u3002<\/p>\n<p>\u5404\u30e1\u30c8\u30ea\u30c3\u30af\u306e\u91cd\u307f\u4ed8\u3051\u304c\u6700\u7d42\u7684\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a55\u4fa1\u306b\u3069\u306e\u3088\u3046\u306b\u5f71\u97ff\u3059\u308b\u304b\u3092\u3088\u308a\u3088\u304f\u7406\u89e3\u3059\u308b\u306b\u306f\u3001Lighthouse \u30b9\u30b3\u30a2\u8a08\u7b97\u30c4\u30fc\u30eb\u306e\u30b9\u30e9\u30a4\u30c9 \u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3092\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u6b21\u306e\u8868\u306f\u3001\u500b\u3005\u306e\u30e1\u30c8\u30ea\u30c3\u30af\u306e\u91cd\u307f\u4ed8\u3051\u306e\u504f\u308a\u304c\u5168\u4f53\u7684\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a55\u4fa1\u306b\u4e0e\u3048\u308b\u5f71\u97ff\u3092\u793a\u3057\u305f\u5358\u7d14\u306a\u8868\u3067\u3001\u901f\u5ea6\u3088\u308a\u3082\u30da\u30fc\u30b8\u306e\u4f7f\u3044\u3084\u3059\u3055\u3068\u5fdc\u7b54\u6027\u304c\u512a\u5148\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u8aac\u660e<\/th>\n<th>FCP (\u30df\u30ea\u79d2)<\/th>\n<th>SI (\u30df\u30ea\u79d2)<\/th>\n<th>LCP (\u30df\u30ea\u79d2)<\/th>\n<th>TBT (\u30df\u30ea\u79d2)<\/th>\n<th>CLSA<\/th>\n<th>LH \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30b9\u30b3\u30a2<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u753b\u9762\u4e0a\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u8868\u793a\u304c\u9045\u308c\u308b<\/td>\n<td>6000<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>90<\/td>\n<\/tr>\n<tr>\n<td>\u6642\u9593\u306e\u7d4c\u904e\u306b\u3088\u308b\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u8aad\u307f\u8fbc\u307f\u306e\u9045\u5ef6<\/td>\n<td>0<\/td>\n<td>5000<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>90<\/td>\n<\/tr>\n<tr>\n<td>\u30da\u30fc\u30b8\u306e\u4e3b\u8981\u30bb\u30b0\u30e1\u30f3\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u304c\u9045\u308c\u308b<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>6000<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>76<\/td>\n<\/tr>\n<tr>\n<td>\u30da\u30fc\u30b8\u8aad\u307f\u8fbc\u307f\u4e2d\u306e\u8996\u899a\u7684\u5909\u5316<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>0.82<\/td>\n<td>76<\/td>\n<\/tr>\n<tr>\n<td>\u30e6\u30fc\u30b6\u30fc\u5165\u529b\u306b\u5bfe\u3059\u308b\u30da\u30fc\u30b8\u306e\u5fdc\u7b54\u304c\u306a\u3044<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>2000<\/td>\n<td>0<\/td>\n<td>70<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Google Lighthouse \u306e\u5168\u4f53\u7684\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30b9\u30b3\u30a2\u306f\u3001HTTP \u30a2\u30fc\u30ab\u30a4\u30d6\u306e\u5b9f\u969b\u306e Web \u30b5\u30a4\u30c8 \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30c7\u30fc\u30bf\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30e1\u30c8\u30ea\u30c3\u30af\u304b\u3089\u5f97\u3089\u308c\u308b Lighthouse \u30b9\u30b3\u30a2\u5206\u5e03\u5185\u306e\u4f4d\u7f6e\u306b\u57fa\u3065\u3044\u3066\u3001\u5404\u751f\u306e\u30e1\u30c8\u30ea\u30c3\u30af\u5024\u3092 0 \uff5e 100 \u306e\u7bc4\u56f2\u306e\u30b9\u30b3\u30a2\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u6570\u5b66\u7684\u306b\u96c6\u7d04\u3055\u308c\u305f\u30c7\u30fc\u30bf\u304b\u3089\u30012 \u3064\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u304c\u6d6e\u304b\u3073\u4e0a\u304c\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>Lighthouse \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30b9\u30b3\u30a2\u306f\u3001\u5358\u72ec\u3067\u306f\u306a\u304f\u3001\u5b9f\u969b\u306e Web \u30b5\u30a4\u30c8 \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30c7\u30fc\u30bf\u306b\u57fa\u3065\u3044\u3066\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u5316\u3055\u308c\u307e\u3059\u3002<\/li>\n<li>\u30b9\u30b3\u30a2\u30ea\u30f3\u30b0\u306b\u5bfe\u6570\u6b63\u898f\u5206\u5e03\u3092\u5229\u7528\u3059\u308b\u3068\u3001\u500b\u3005\u306e\u30e1\u30c8\u30ea\u30c3\u30af\u5024\u3068\u5408\u8a08\u30b9\u30b3\u30a2\u306e\u76f8\u95a2\u306f\u975e\u7dda\u5f62\u306b\u306a\u308a\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u4f4e\u3044\u30b9\u30b3\u30a2\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u306f\u3067\u304d\u308b\u3082\u306e\u306e\u3001\u3059\u3067\u306b\u9ad8\u3044\u30b9\u30b3\u30a2\u3092\u3055\u3089\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u306f\u3088\u308a\u56f0\u96e3\u306b\u306a\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/li>\n<\/ol>\n<p><a href=\"https:\/\/i.imgur.com\/X1EXzMV.png\"><img decoding=\"async\" src=\"https:\/\/i.imgur.com\/X1EXzMV.png\" alt=\"\u5bfe\u6570\u6b63\u898f\u5206\u5e03\u66f2\u7dda\u3092\u8996\u899a\u5316\u3057\u305f\u3082\u306e\u3002\u5de6\u5074\u304c\u9ad8\u304f\u3001\u53f3\u5074\u304c\u4f4e\u304f\u306a\u308a\u307e\u3059\u3002\" \/><\/a><\/p>\n<p>developer.chrome.com \u3067\u5bfe\u6570\u6b63\u898f\u5206\u5e03\u66f2\u7dda\u306e\u30b0\u30e9\u30d5\u8868\u73fe\u3092\u4f7f\u7528\u3057\u3066\u3001\u30e1\u30c8\u30ea\u30c3\u30af \u30b9\u30b3\u30a2\u306e\u78ba\u8a8d\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8abf\u3079\u307e\u3059\u3002<\/p>\n<h2><a id=\"can-we-trick-google-lighthouse-can-we-trick-google-lighthouse\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><a href=\"#can-we-trick-google-lighthouse\"><\/a>Google Lighthouse \u3092\u51fa\u3057\u629c\u304f\u3053\u3068\u306f\u53ef\u80fd\u3067\u3057\u3087\u3046\u304b?<\/h2>\n<p>Google \u304c Web \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u95a2\u3059\u308b\u8b70\u8ad6\u3067\u3001\u901f\u5ea6\u3088\u308a\u3082\u4f7f\u3044\u3084\u3059\u3055\u3092\u91cd\u8996\u3057\u3066\u3044\u308b\u3053\u3068\u306b\u611f\u5fc3\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u958b\u767a\u8005\u304c\u6063\u610f\u7684\u306a\u6307\u6a19\u3092\u8ffd\u6c42\u3059\u308b\u3088\u308a\u3082\u672c\u7269\u306e\u4f53\u9a13\u3092\u512a\u5148\u3059\u308b\u3053\u3068\u3092\u5968\u52b1\u3057\u3066\u3044\u307e\u3059\u3002\u3068\u306f\u3044\u3048\u30012024 \u5e74\u306e\u4eca\u65e5\u3001Google Lighthouse \u3092\u9a19\u3057\u3066\u3001\u30c7\u30b6\u30a4\u30f3\u304c\u60aa\u304f\u5f79\u306b\u7acb\u305f\u306a\u3044\u30da\u30fc\u30b8\u3092\u512a\u308c\u305f\u30da\u30fc\u30b8\u3068\u3057\u3066\u8a8d\u8b58\u3055\u305b\u308b\u3053\u3068\u306f\u53ef\u80fd\u304b\u3069\u3046\u304b\u3001\u79c1\u306f\u8003\u3048\u307e\u3057\u305f\u3002<\/p>\n<p>\u79c1\u306f\u767d\u8863\u3068\u79d1\u5b66\u7528\u30b4\u30fc\u30b0\u30eb\u3092\u8eab\u306b\u7740\u3051\u3066\u8abf\u67fb\u306b\u4e57\u308a\u51fa\u3057\u307e\u3057\u305f\u3002\u3059\u3079\u3066\u306e\u30c6\u30b9\u30c8\u304c\u5b9f\u884c\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<ul>\n<li>Chromium Lighthouse\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u63a1\u7528\u3057\u3001<\/li>\n<li>Arc\u30d6\u30e9\u30a6\u30b6\u3092\u4f7f\u7528\u3057\u305f\u30b7\u30fc\u30af\u30ec\u30c3\u30c8\u30a6\u30a3\u30f3\u30c9\u30a6\u3067\u306f\u3001<\/li>\n<li>\u300c\u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3\u300d\u3068\u300c\u30e2\u30d0\u30a4\u30eb\u300d\u306e\u8a2d\u5b9a\u3092\u9078\u629e\u3059\u308b\uff08\u5225\u9014\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3092\u9664\u304f\uff09\u3001<\/li>\n<li>\u79c1\u304c\u7814\u7a76\u5ba4\u74b0\u5883\u3067\u884c\u3063\u305f\u3082\u306e\u3067\u3059\uff08\u3064\u307e\u308a\u3001\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u306f\u3042\u308a\u307e\u305b\u3093\uff09\u3002<\/li>\n<\/ul>\n<p>\u79c1\u306e\u5b9f\u9a13\u306f\u5236\u5fa1\u3055\u308c\u305f\u74b0\u5883\u3067\u884c\u308f\u308c\u305f\u305f\u3081\u3001\u3053\u306e\u6295\u7a3f\u306e\u5192\u982d\u306e\u30a2\u30c9\u30d0\u30a4\u30b9\u3068\u306f\u77db\u76fe\u3057\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u5b9f\u9a13\u306f\u8208\u5473\u6df1\u3044\u8a66\u307f\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002Lighthouse \u30b9\u30b3\u30a2\u306f\u3001\u8907\u96d1\u306a Web \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30d1\u30ba\u30eb\u306e 1 \u3064\u306e\u8981\u7d20 (\u305f\u3060\u3057\u3001\u5c0f\u3055\u306a\u8981\u7d20) \u306b\u3059\u304e\u306a\u3044\u3053\u3068\u3092\u7406\u89e3\u3057\u3066\u3044\u305f\u3060\u3051\u308c\u3070\u5e78\u3044\u3067\u3059\u3002\u3055\u3089\u306b\u3001\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u304c\u306a\u3044\u305f\u3081\u3001\u3053\u308c\u3089\u306e\u7d50\u679c\u306e\u59a5\u5f53\u6027\u306b\u7591\u554f\u304c\u751f\u3058\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2><a id=\"how-to-hack-fcp-and-lcp-scores-how-to-hack-fcp-and-lcp-scores\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><a href=\"#how-to-hack-fcp-and-lcp-scores\"><\/a>FCP \u3068 LCP \u30b9\u30b3\u30a2\u3092\u64cd\u4f5c\u3059\u308b\u6226\u7565<\/h2>\n<hr \/>\n<p><strong>TL;DR: \u8aad\u307f\u8fbc\u307f\u6642\u306b\u6700\u5c0f\u9650\u306e LCP \u9069\u683c\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u8868\u793a\u3057\u3001Lighthouse \u8a55\u4fa1\u304c\u5b8c\u4e86\u3059\u308b\u307e\u3067 FCP \u304a\u3088\u3073 LCP \u30b9\u30b3\u30a2\u3092\u9ad8\u3081\u307e\u3059\u3002<\/strong><\/p>\n<hr \/>\n<p>FCP\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u753b\u9762\u4e0a\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u8a8d\u8b58\u3067\u304d\u308b\u30da\u30fc\u30b8\u8aad\u307f\u8fbc\u307f\u30d7\u30ed\u30bb\u30b9\u306e\u521d\u671f\u6bb5\u968e\u3092\u793a\u3057\u307e\u3059\u3002\u4e00\u65b9\u3001LCP\u306f\u3001\u8aad\u307f\u8fbc\u307f\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u3067\u4e3b\u8981\u306a\u30da\u30fc\u30b8\u30b3\u30f3\u30c6\u30f3\u30c4\uff08\u6700\u5927\u306e\u30c6\u30ad\u30b9\u30c8\u3084\u753b\u50cf\u8981\u7d20\u306a\u3069\uff09\u304c\u8aad\u307f\u8fbc\u307e\u308c\u305f\u3068\u601d\u308f\u308c\u308b\u6642\u70b9\u3092\u793a\u3057\u307e\u3059\u3002\u8fc5\u901f\u306aLCP\u306f\u3001\u30da\u30fc\u30b8\u306b\u5bfe\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u306e\u4fe1\u983c\u3092\u5f37\u5316\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002 <em>\u5229\u70b9<\/em>\u3053\u3053\u3067\u5fc3\u306b\u7559\u3081\u3066\u304a\u304f\u3079\u304d\u91cd\u8981\u306a\u7528\u8a9e\u306f\u3001\u300c\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u300d\u3068\u300c\u6709\u76ca\u300d\u3067\u3059\u3002<\/p>\n<h3><a id=\"what-counts-as-an-lcp-element-what-counts-as-an-lcp-element\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><a href=\"#what-counts-as-an-lcp-element\"><\/a>LCP\u8981\u7d20\u306e\u8b58\u5225<\/h3>\n<p>Lighthouse \u304c LCP \u7528\u306b\u8003\u616e\u3059\u308b Web \u30da\u30fc\u30b8\u4e0a\u306e\u8981\u7d20\u306e\u30ab\u30c6\u30b4\u30ea\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ul>\n<li><code>&lt;img&gt;<\/code> \u30bf\u30b0<\/li>\n<li><code>&lt;image&gt;<\/code> \u30bf\u30b0\u5185\u306e <code>&lt;svg&gt;<\/code> \u9b3c\u3054\u3063\u3053<\/li>\n<li><code><video><\/code> \u30bf\u30b0<\/li>\n<li>\u80cc\u666f\u753b\u50cf\u304c\u8aad\u307f\u8fbc\u307e\u308c\u305f\u8981\u7d20\u306f\u3001 <code>url()<\/code> \u95a2\u6570\uff08CSS\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u9664\u304f\uff09<\/li>\n<li>\u30c6\u30ad\u30b9\u30c8\u30ce\u30fc\u30c9\u307e\u305f\u306f\u30a4\u30f3\u30e9\u30a4\u30f3\u30ec\u30d9\u30eb\u306e\u30c6\u30ad\u30b9\u30c8\u8981\u7d20\u3092\u542b\u3080\u30d6\u30ed\u30c3\u30af\u30ec\u30d9\u30eb\u8981\u7d20<\/li>\n<\/ul>\n<p>\u7d9a\u304f\u8981\u7d20\u306f <em>\u7701\u7565<\/em> \u6709\u7528\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u4e0d\u8db3\u3057\u3066\u3044\u308b\u3068\u3044\u3046\u63a8\u5b9a\u306b\u3088\u308a\u3001LCP \u306e\u691c\u8a0e\u5bfe\u8c61\u304b\u3089\u9664\u5916\u3055\u308c\u308b\u3082\u306e:<\/p>\n<ul>\n<li>\u900f\u660e\u5ea6\u304c\u30bc\u30ed\u306e\u8981\u7d20\uff08\u30e6\u30fc\u30b6\u30fc\u306b\u306f\u898b\u3048\u306a\u3044\uff09<\/li>\n<li>\u30d3\u30e5\u30fc\u30dd\u30fc\u30c8\u5168\u4f53\u3092\u8986\u3044\u96a0\u3059\u8981\u7d20\uff08\u80cc\u666f\u8981\u7d20\u306a\u3069\uff09<\/li>\n<li>\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u30fc\u753b\u50cf\u3001\u307e\u305f\u306f\u9650\u754c\u30a8\u30f3\u30c8\u30ed\u30d4\u30fc\u3092\u6301\u3064\u60c5\u5831\u91cf\u306e\u5c11\u306a\u3044\u753b\u50cf (\u4f8b: \u5358\u8272\u306e\u753b\u50cf)\u3002<\/li>\n<\/ul>\n<p>\u3057\u304b\u3057\u3001\u3053\u306e\u30b7\u30ca\u30ea\u30aa\u3067\u306f\u3001\u753b\u50cf\u3084\u30c6\u30ad\u30b9\u30c8\u8981\u7d20\u304c\u6709\u76ca\u3067\u3042\u308b\u3068\u5224\u65ad\u3059\u308b\u6982\u5ff5\u306f\u975e\u5e38\u306b\u4e3b\u89b3\u7684\u3067\u3042\u308a\u3001\u4e00\u822c\u7684\u306b\u6a5f\u68b0\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u304c\u78ba\u5b9f\u306b\u5224\u65ad\u3067\u304d\u308b\u7bc4\u56f2\u3092\u8d85\u3048\u3066\u3044\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u79c1\u304c\u4f5c\u6210\u3057\u305f\u30da\u30fc\u30b8\u306b\u306f\u3001 <code>&lt;h1&gt;<\/code> \u30bf\u30b0\u306f\u300110\u79d2\u304c\u7d4c\u904e\u3059\u308b\u3068\u3001JavaScript\u306b\u3088\u3063\u3066DOM\u306b\u3055\u3089\u306b\u8aac\u660e\u7684\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u633f\u5165\u3055\u308c\u3001\u305d\u306e\u5f8c\u3001 <code>&lt;h1&gt;<\/code> \u9b3c\u3054\u3063\u3053\u3002<\/p>\n<p>\u5b9f\u9a13\u306b\u3088\u308b\u3068\u3001Lighthouse \u306f\u898b\u51fa\u3057\u30bf\u30b0\u3092\u6700\u5927\u306e\u30b3\u30f3\u30c6\u30f3\u30c4 \u30da\u30a4\u30f3\u30c8 (LCP) \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u898b\u306a\u3057\u307e\u3059\u3002\u3053\u306e\u6bb5\u968e\u306b\u9054\u3059\u308b\u3068\u3001\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u306f\u7d42\u4e86\u3057\u307e\u3059\u304c\u3001\u4e3b\u8981\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u306f\u307e\u3060\u5b8c\u5168\u306b\u306f\u8aad\u307f\u8fbc\u307e\u308c\u3066\u3044\u307e\u305b\u3093\u3002\u305d\u308c\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001Lighthouse \u306f\u30b3\u30f3\u30c6\u30f3\u30c4\u304c 10 \u79d2\u306e\u30a6\u30a3\u30f3\u30c9\u30a6\u5185\u306b\u8aad\u307f\u8fbc\u307e\u308c\u305f\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3068\u60f3\u5b9a\u3057\u307e\u3059\u3002\u9a5a\u304f\u3079\u304d\u3053\u3068\u306b\u3001\u898b\u51fa\u3057\u304c\u30d4\u30ea\u30aa\u30c9\u306a\u3069\u306e\u5358\u7d14\u306a\u53e5\u8aad\u70b9\u306b\u7f6e\u304d\u63db\u3048\u3089\u308c\u305f\u5834\u5408\u3067\u3082\u3001Lighthouse \u306f\u4f9d\u7136\u3068\u3057\u3066 100 \u70b9\u306e\u30d5\u30eb \u30b9\u30b3\u30a2\u3092\u4e0e\u3048\u307e\u3059\u3002\u3053\u308c\u306f\u3055\u3089\u306b\u4fa1\u5024\u304c\u4f4e\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30c8\u30e9\u30a4\u30a2\u30eb\u3067\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u306e JavaScript \u3067\u30da\u30fc\u30b8 \u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u8aad\u307f\u8fbc\u3080\u5834\u5408\u3001\u30b9\u30b1\u30eb\u30c8\u30f3 \u30ed\u30fc\u30c0\u30fc\u753b\u9762\u306e\u8868\u793a\u306f\u63a7\u3048\u305f\u65b9\u304c\u3088\u3044\u3053\u3068\u304c\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u3053\u306e\u3088\u3046\u306a\u753b\u9762\u3092\u8868\u793a\u3059\u308b\u306b\u306f\u3001\u30da\u30fc\u30b8\u4e0a\u306e\u8ffd\u52a0\u8981\u7d20\u3092\u8aad\u307f\u8fbc\u3080\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u3067\u3059\u3002\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306b\u306f\u6642\u9593\u304c\u304b\u304b\u308b\u3053\u3068\u3092\u8a8d\u8b58\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30e1\u30a4\u30f3 \u30b9\u30ec\u30c3\u30c9\u304b\u3089 Web \u30ef\u30fc\u30ab\u30fc\u306b\u8ee2\u9001\u3057\u3066\u5408\u8a08\u30d6\u30ed\u30c3\u30af\u6642\u9593\u3078\u306e\u5f71\u97ff\u3092\u56de\u907f\u3059\u308b\u3053\u3068\u3067\u3001\u6700\u5c0f\u9650\u306e\u5b9f\u884c\u53ef\u80fd\u306a LCP \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u542b\u3080\u6c4e\u7528\u306e\u300c\u30b9\u30d7\u30e9\u30c3\u30b7\u30e5 \u30b9\u30af\u30ea\u30fc\u30f3\u300d\u3092\u4f7f\u7528\u3057\u3066\u3001\u30d5\u30a1\u30fc\u30b9\u30c8 \u30b3\u30f3\u30c6\u30f3\u30c4 \u30da\u30a4\u30f3\u30c8 (FCP) \u30b9\u30b3\u30a2\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u3088\u308a\u3001Lighthouse \u306f\u3001\u30da\u30fc\u30b8\u304c\u5b9f\u969b\u3088\u308a\u3082\u306f\u308b\u304b\u306b\u901f\u304f\u30e6\u30fc\u30b6\u30fc \u30d5\u30ec\u30f3\u30c9\u30ea\u30fc\u3067\u3042\u308b\u3068\u3044\u3046\u5370\u8c61\u3092\u53d7\u3051\u307e\u3059\u3002<\/p>\n<p>\u5fc5\u8981\u306a\u306e\u306f\u3001FCP \u3092\u8868\u3059\u6b63\u5f53\u306a LCP \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u542b\u3081\u308b\u3053\u3068\u3060\u3051\u3067\u3059\u30022024 \u5e74\u306b\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u306e JavaScript \u7d4c\u7531\u3067\u30e1\u30a4\u30f3 \u30da\u30fc\u30b8\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u8aad\u307f\u8fbc\u3080\u3053\u3068\u306f\u304a\u52e7\u3081\u3057\u307e\u305b\u3093\u304c (\u30b3\u30f3\u30c6\u30f3\u30c4\u914d\u4fe1\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u9759\u7684 HTML \u3092\u63d0\u4f9b\u3059\u308b\u304b\u3001\u3067\u304d\u308b\u3060\u3051\u591a\u304f\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u30b5\u30fc\u30d0\u30fc\u4e0a\u306b\u69cb\u7bc9\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059)\u3001Lighthouse \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30b9\u30b3\u30a2\u306b\u95a2\u4fc2\u306a\u304f\u3001\u3053\u306e\u300c\u30cf\u30c3\u30af\u300d\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u306f\u3001\u30e6\u30fc\u30b6\u30fc \u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306b\u3082\u304a\u52e7\u3081\u3067\u304d\u307e\u305b\u3093\u3002\u3055\u3089\u306b\u3001\u3053\u306e\u65b9\u6cd5\u306f\u3001DOM \u306b\u30e1\u30a4\u30f3 \u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u306a\u3044\u5834\u5408\u3001\u691c\u7d22\u30dc\u30c3\u30c8\u304c\u30e1\u30a4\u30f3 \u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u898b\u3064\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u4f5c\u6210\u306b\u306f\u5f79\u7acb\u305f\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u79c1\u306f\u3001\u30da\u30fc\u30b8\u306e\u6709\u7528\u6027\u3092\u3055\u3089\u306b\u4f4e\u4e0b\u3055\u305b\u308b\u305f\u3081\u306b\u3001LCP \u3092\u88c5\u3063\u305f\u3055\u307e\u3056\u307e\u306a\u30e9\u30f3\u30c0\u30e0\u306a\u753b\u50cf\u3067\u540c\u69d8\u306e\u30c6\u30b9\u30c8\u3092\u5b9f\u884c\u3057\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u3088\u308a\u5c0f\u3055\u306a\u30d5\u30a1\u30a4\u30eb \u30b5\u30a4\u30ba (\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306b\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u306e\u753b\u50cf API \u3092\u4ecb\u3057\u3066\u3055\u3089\u306b\u7e2e\u5c0f\u3055\u308c\u3001\u300c\u6b21\u4e16\u4ee3\u300d\u753b\u50cf\u5f62\u5f0f\u306b\u5909\u63db\u3055\u308c\u305f) \u3092\u4f7f\u7528\u3059\u308b\u3068\u3001Lighthouse \u306f\u3053\u308c\u3089\u306e\u753b\u50cf\u3092\u300c\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u30fc\u753b\u50cf\u300d\u307e\u305f\u306f\u300c\u30a8\u30f3\u30c8\u30ed\u30d4\u30fc\u304c\u4f4e\u3044\u300d\u753b\u50cf\u3068\u3057\u3066\u8a8d\u8b58\u3057\u307e\u3057\u305f\u3002\u305d\u306e\u7d50\u679c\u3001\u3053\u308c\u3089\u306e\u753b\u50cf\u306f LCP \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u3057\u3066\u8a8d\u8b58\u3055\u308c\u305a\u3001LCP \u304c\u64cd\u4f5c\u3055\u308c\u306b\u304f\u304f\u306a\u308b\u3068\u3044\u3046\u671b\u307e\u3057\u3044\u7d50\u679c\u3068\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u30b7\u30fc\u30af\u30ec\u30c3\u30c8 \u30e2\u30fc\u30c9\u3067 Chromium DevTools \u3092\u4f7f\u7528\u3057\u3066\u30c7\u30e2 \u30da\u30fc\u30b8\u3092\u78ba\u8a8d\u3057\u3001\u7d50\u679c\u3092\u76f4\u63a5\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><a href=\"https:\/\/i.imgur.com\/KeEjeLx.png\"><img decoding=\"async\" src=\"https:\/\/i.imgur.com\/KeEjeLx.png\" alt=\"\u5f79\u306b\u7acb\u305f\u306a\u3044\u30da\u30fc\u30b8\u304c Lighthouse \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3067\u5b8c\u74a7\u306a 100 \u70b9\u3092\u7372\u5f97\u3057\u305f\u3053\u3068\u3092\u30d6\u30e9\u30a6\u30b6\u3067\u8a3c\u660e\u3059\u308b\" \/><\/a><\/p>\n<p>\u305f\u3060\u3057\u3001\u3053\u306e\u6226\u7565\u306f\u4ed6\u306e\u591a\u304f\u306e\u30b7\u30ca\u30ea\u30aa\u3067\u306f\u305d\u308c\u307b\u3069\u52b9\u679c\u7684\u3067\u306f\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u4f8b\u3068\u3057\u3066\u3001Discord \u306f\u30d6\u30e9\u30a6\u30b6\u3067\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30cf\u30fc\u30c9\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3092\u5b9f\u884c\u3059\u308b\u3068\u304d\u306b\u300c\u30b9\u30d7\u30e9\u30c3\u30b7\u30e5 \u30b9\u30af\u30ea\u30fc\u30f3\u300d\u65b9\u5f0f\u3092\u63a1\u7528\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30b9\u30b3\u30a2\u306f 29 \u3068\u6b8b\u5ff5\u306a\u7d50\u679c\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>DOM \u3092\u633f\u5165\u3057\u305f\u79c1\u306e\u30c7\u30e2\u3068\u306f\u5bfe\u7167\u7684\u306b\u3001LCP \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u3001\u30b9\u30d7\u30e9\u30c3\u30b7\u30e5 \u30b9\u30af\u30ea\u30fc\u30f3\u81ea\u4f53\u306e\u8981\u7d20\u3067\u306f\u306a\u304f\u3001\u30b9\u30d7\u30e9\u30c3\u30b7\u30e5 \u30b9\u30af\u30ea\u30fc\u30f3\u306e\u80cc\u5f8c\u306b\u96a0\u3055\u308c\u305f\u30b3\u30f3\u30c6\u30f3\u30c4\u3068\u3057\u3066\u8b58\u5225\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u3001\u79c1\u304c\u30c6\u30b9\u30c8\u3057\u305f\u30d5\u30a9\u30fc\u30ab\u30b9\u3055\u308c\u305f\u30c6\u30ad\u30b9\u30c8 \u30c1\u30e3\u30cd\u30eb\u306b 1 \u3064\u4ee5\u4e0a\u306e\u5927\u304d\u306a\u753b\u50cf\u304c\u5b58\u5728\u3057\u305f\u305f\u3081\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u8a8d\u8a3c\u5f8c\u306b\u306e\u307f\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306b\u3088\u3063\u3066\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3055\u308c\u308b\u5fc5\u8981\u304c\u306a\u3044\u305f\u3081\u3001Lighthouse \u30b9\u30b3\u30a2\u306e\u91cd\u8981\u6027\u306f\u4f4e\u3044\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/i.imgur.com\/nHT0vqe.png\"><img decoding=\"async\" src=\"https:\/\/i.imgur.com\/nHT0vqe.png\" alt=\"\u30b9\u30b3\u30a2 29 \u306e Lighthouse \u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3068\u3001\u307c\u304b\u3057\u306e\u5165\u3063\u305f Discord \u30b5\u30fc\u30d0\u30fc \u30c1\u30e3\u30cd\u30eb\u306e\u6a2a\u3002\" \/><\/a><\/p>\n<p>\u30a2\u30d7\u30ea\u304c\u30e6\u30fc\u30b6\u30fc\u751f\u6210\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u63d0\u4f9b\u3059\u308b\u4ed6\u306e\u591a\u304f\u306e\u72b6\u6cc1\u3067\u306f\u3001\u7279\u306b\u753b\u50cf\u306b\u95a2\u3057\u3066\u3001LCP \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u5b8c\u5168\u306b\u5236\u5fa1\u3059\u308b\u3053\u3068\u304c\u56f0\u96e3\u306a\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001Web \u30da\u30fc\u30b8\u4e0a\u306e\u3059\u3079\u3066\u306e\u753b\u50cf\u306e\u30b5\u30a4\u30ba\u3092\u5236\u5fa1\u3067\u304d\u308b\u5834\u5408\u306f\u3001\u8208\u5473\u6df1\u3044\u30cf\u30c3\u30af\u3084\u300c\u6700\u9069\u5316\u300d\uff08\u5f15\u7528\u7b26\u3067\u56f2\u3080\uff09\u3092\u5229\u7528\u3057\u3066\u3001\u30b7\u30b9\u30c6\u30e0\u3092\u64cd\u4f5c\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u30012021 \u5e74\u306b RentPath \u306b\u3088\u3063\u3066\u5b9f\u8a3c\u3055\u308c\u307e\u3057\u305f\u3002\u958b\u767a\u8005\u306f\u3001Web \u30da\u30fc\u30b8\u4e0a\u306e\u753b\u50cf\u306e\u30b5\u30e0\u30cd\u30a4\u30eb\u3092\u62e1\u5927\u3059\u308b\u3053\u3068\u3067\u3001Lighthouse \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30b9\u30b3\u30a2\u3092 17 \u30dd\u30a4\u30f3\u30c8\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002\u958b\u767a\u8005\u306f\u3001JavaScript \u7d4c\u7531\u3067\u306e\u8aad\u307f\u8fbc\u307f\u306b\u5927\u5e45\u306b\u6642\u9593\u304c\u304b\u304b\u3063\u305f\u30da\u30fc\u30b8\u4e0a\u306e Google \u30de\u30c3\u30d7 \u30bf\u30a4\u30eb\u306e\u4ee3\u308f\u308a\u306b\u3001LCP \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u3088\u308a\u5927\u304d\u306a\u30b5\u30e0\u30cd\u30a4\u30eb\u306e 1 \u3064\u3068\u3057\u3066\u6271\u3046\u3088\u3046\u306b Lighthouse \u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u3068\u306b\u6210\u529f\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u306f\u3001LCP \u8981\u7d20\u306b\u6ce8\u610f\u3092\u6255\u3044\u3001\u305d\u308c\u3092\u5236\u5fa1\u3067\u304d\u308c\u3070\u3001RentPath \u3068\u540c\u69d8\u306e\u30cf\u30c3\u30af\u3084\u72ec\u81ea\u306e\u30cf\u30c3\u30af\u3001\u3042\u308b\u3044\u306f\u672c\u7269\u306e\u6a5f\u80fd\u5f37\u5316\u3092\u901a\u3058\u3066\u3001\u3088\u308a\u9ad8\u3044 Lighthouse \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30b9\u30b3\u30a2\u3092\u9054\u6210\u3067\u304d\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u30b9\u30d7\u30e9\u30c3\u30b7\u30e5 \u30b9\u30af\u30ea\u30fc\u30f3 \u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u30cf\u30c3\u30af\u3068\u8868\u73fe\u3057\u307e\u3057\u305f\u304c\u3001\u3053\u306e\u30bf\u30a4\u30d7\u306e\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u304c\u6709\u610f\u7fa9\u3067\u697d\u3057\u3044\u30e6\u30fc\u30b6\u30fc \u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3092\u63d0\u4f9b\u3067\u304d\u306a\u3044\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30e6\u30fc\u30b6\u30fc \u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u306f\u3069\u3061\u3089\u3082\u3001\u8aad\u307f\u8fbc\u307f\u30d7\u30ed\u30bb\u30b9\u3068\u610f\u56f3\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306b\u304b\u304b\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2><a id=\"how-to-hack-cls-scores-how-to-hack-cls-scores\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><a href=\"#how-to-hack-cls-scores\"><\/a>CLS \u30b9\u30b3\u30a2\u3092\u64cd\u4f5c\u3059\u308b\u6226\u7565<\/h2>\n<hr \/>\n<p><strong>\u8981\u7d04: \u5341\u5206\u306a\u30c7\u30fc\u30bf\u304c\u3042\u308b\u3068\u3044\u3046\u524d\u63d0\u3067\u3001Lighthouse \u30c6\u30b9\u30c8\u304c\u5b8c\u4e86\u3059\u308b\u307e\u3067\u3001\u30ec\u30a4\u30a2\u30a6\u30c8 \u30b7\u30d5\u30c8\u306e\u539f\u56e0\u3068\u306a\u308b\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u8aad\u307f\u8fbc\u307f\u3092\u5ef6\u671f\u3057\u307e\u3059\u3002Transform \u3092\u4f7f\u7528\u3059\u308b CSS \u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306f\u3001DOM \u306b\u65b0\u3057\u3044\u8981\u7d20\u3092\u8ffd\u52a0\u3059\u308b\u5834\u5408\u3092\u9664\u3044\u3066\u3001\u901a\u5e38\u306f CLS \u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u305b\u3093\u3002<\/strong><\/p>\n<hr \/>\n<p>CLS \u306f\u5c0f\u6570\u70b9\u30b9\u30b1\u30fc\u30eb\u3067\u8a55\u4fa1\u3055\u308c\u30010.1 \u672a\u6e80\u306e\u30b9\u30b3\u30a2\u306f\u826f\u597d\u30010.25 \u3092\u8d85\u3048\u308b\u30b9\u30b3\u30a2\u306f\u4e0d\u826f\u3068\u307f\u306a\u3055\u308c\u307e\u3059\u3002Lighthouse \u306f\u3001\u30d3\u30e5\u30fc\u30dd\u30fc\u30c8\u306e\u30b5\u30a4\u30ba\u3068\u3001\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3055\u308c\u305f 2 \u3064\u306e\u30d5\u30ec\u30fc\u30e0\u9593\u306e\u4e0d\u5b89\u5b9a\u306a\u8981\u7d20\u306e\u79fb\u52d5\u3092\u8003\u616e\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u4e2d\u306b\u767a\u751f\u3059\u308b\u4e88\u671f\u3057\u306a\u3044\u30ec\u30a4\u30a2\u30a6\u30c8 \u30b7\u30d5\u30c8\u306e\u6700\u3082\u91cd\u8981\u306a\u30b7\u30ea\u30fc\u30ba\u306b\u57fa\u3065\u3044\u3066 CLS \u3092\u8a08\u7b97\u3057\u307e\u3059\u3002\u30ec\u30a4\u30a2\u30a6\u30c8 \u30b7\u30d5\u30c8\u306e\u500b\u3005\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306f\u91cd\u8981\u3067\u306f\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u30b7\u30d5\u30c8\u304c\u9023\u7d9a\u3057\u3066\u767a\u751f\u3059\u308b\u3068\u3001\u30b9\u30b3\u30a2\u306b\u60aa\u5f71\u97ff\u3092\u53ca\u307c\u3057\u307e\u3059\u3002<\/p>\n<p>\u30da\u30fc\u30b8\u304c\u8aad\u307f\u8fbc\u307f\u6642\u306b\u7169\u308f\u3057\u3044\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\u3092\u5f15\u304d\u8d77\u3053\u3059\u3053\u3068\u304c\u308f\u304b\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u304c\u5b8c\u4e86\u3059\u308b\u307e\u3067\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\u3092\u5ef6\u671f\u3057\u3066\u3001Lighthouse\u306bCLS\u306e\u554f\u984c\u304c\u306a\u3044\u3068\u60f3\u5b9a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u500b\u4eba\u7684\u306a\u4f8b\u3067\u306f\u3001\u30c7\u30e2\u30da\u30fc\u30b8\u306f\u3001\u65b0\u3057\u304f\u8ffd\u52a0\u3055\u308c\u305f\u30c6\u30ad\u30b9\u30c8\u8981\u7d20\u304cJavaScript\u3092\u4ecb\u3057\u3066\u5143\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u3059\u3050\u306b\u4e0a\u65b9\u306b\u30b7\u30d5\u30c8\u3055\u305b\u308b\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001CLS\u30b9\u30b3\u30a20.143\u3092\u8fd4\u3057\u307e\u3059\u3002DOM\u306b\u65b0\u3057\u3044\u30ce\u30fc\u30c9\u3092\u8ffd\u52a0\u3059\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u3001 <code>\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3092\u8a2d\u5b9a\u3059\u308b()<\/code> \u6a5f\u80fd\u306b\u3088\u308a\u3001Lighthouse \u306f CLS \u306e\u767a\u751f\u3092\u691c\u51fa\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u5225\u306e\u30c7\u30e2 \u30da\u30fc\u30b8\u3067\u306f\u3001\u8ffd\u52a0\u306e\u8981\u7d20\u304c\u30e6\u30fc\u30b6\u30fc\u306e\u64cd\u4f5c\u306a\u3057\u306b\u4efb\u610f\u306b\u8868\u793a\u3055\u308c\u308b\u305f\u3081\u3001\u524d\u306e\u30da\u30fc\u30b8\u3088\u308a\u3082\u5b9f\u7528\u7684\u3067\u3082\u30e6\u30fc\u30b6\u30fc \u30d5\u30ec\u30f3\u30c9\u30ea\u30fc\u3067\u3082\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308b\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001100 \u3068\u3044\u3046\u5b8c\u74a7\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30b9\u30b3\u30a2\u3092\u9054\u6210\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/i.imgur.com\/nI8BzRh.png\"><img decoding=\"async\" src=\"https:\/\/i.imgur.com\/nI8BzRh.png\" alt=\"2 \u56de\u76ee\u306e\u30c7\u30e2\u3067\u306f Lighthouse \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30b9\u30b3\u30a2\u304c 100 \u3067\u3057\u305f\u3002\" \/><\/a><\/p>\n<p>\u30da\u30fc\u30b8 \u30ed\u30fc\u30c9 \u30c6\u30b9\u30c8\u3067\u30ec\u30a4\u30a2\u30a6\u30c8 \u30b7\u30d5\u30c8\u3092\u5ef6\u671f\u3059\u308b\u3053\u3068\u306f\u53ef\u80fd\u3067\u3059\u304c\u3001\u3053\u306e\u56de\u907f\u7b56\u306f\u3001\u524d\u8ff0\u306e\u3088\u3046\u306b\u3001\u3088\u308a\u91cd\u8981\u306a\u8981\u7d20\u3067\u3042\u308b\u30d5\u30a3\u30fc\u30eb\u30c9 \u30c7\u30fc\u30bf\u3084\u9577\u671f\u7684\u306a\u30e6\u30fc\u30b6\u30fc \u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u306b\u306f\u52b9\u679c\u7684\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30ec\u30a4\u30a2\u30a6\u30c8 \u30b7\u30d5\u30c8\u3092\u5ef6\u671f\u3057\u305f\u30da\u30fc\u30b8\u3067 Lighthouse \u3092\u4f7f\u7528\u3057\u3066\u300c\u6642\u9593\u7bc4\u56f2\u300d\u30c6\u30b9\u30c8\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u7d04 0.186 \u3068\u3044\u3046\u4e0d\u5341\u5206\u306a CLS \u30b9\u30b3\u30a2\u304c\u6b63\u78ba\u306b\u5831\u544a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/i.imgur.com\/mjgWlWk.png\"><img decoding=\"async\" src=\"https:\/\/i.imgur.com\/mjgWlWk.png\" alt=\"\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u30b7\u30d5\u30c8\u3055\u308c\u305f\u540c\u3058\u30da\u30fc\u30b8\u3067\u306e\u30bf\u30a4\u30e0\u30b9\u30d1\u30f3 \u30c6\u30b9\u30c8\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3002\" \/><\/a><\/p>\n<p>\u30c7\u30e2\u306e\u3088\u3046\u306a\u6df7\u6c8c\u3068\u3057\u305f\u30e6\u30fc\u30b6\u30fc \u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3092\u610f\u56f3\u7684\u306b\u4f5c\u6210\u3059\u308b\u5834\u5408\u306f\u3001CSS \u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3068\u5909\u63db\u3092\u6d3b\u7528\u3057\u3066\u3001\u6226\u7565\u7684\u306b\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u30da\u30fc\u30b8\u4e0a\u306b\u8868\u793a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002Google \u306e CLS \u30ac\u30a4\u30c9\u3067\u306f\u3001\u300c\u30b3\u30f3\u30c6\u30f3\u30c4\u304c 1 \u3064\u306e\u4f4d\u7f6e\u304b\u3089\u5225\u306e\u4f4d\u7f6e\u3078\u30b9\u30e0\u30fc\u30ba\u306b\u9077\u79fb\u3059\u308b\u3068\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u7406\u89e3\u304c\u6df1\u307e\u308a\u3001\u72b6\u614b\u306e\u5909\u5316\u3092\u30ac\u30a4\u30c9\u3067\u304d\u307e\u3059\u300d\u3068\u8ff0\u3079\u3089\u308c\u3066\u304a\u308a\u3001\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u306b\u5fdc\u3058\u305f\u30e6\u30fc\u30b6\u30fc \u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u306e\u91cd\u8981\u6027\u304c\u6539\u3081\u3066\u5f37\u8abf\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u6b21\u306e\u30c7\u30e2\u30da\u30fc\u30b8\u3067\u306f\u3001CSS\u5909\u63db\u3092\u5229\u7528\u3057\u3066 <code>\u898f\u6a21\uff08\uff09<\/code> \u30c6\u30ad\u30b9\u30c8\u8981\u7d20\u3092\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u5316\u3059\u308b\u306b\u306f <code>0<\/code> \u306b <code>1<\/code> \u30da\u30fc\u30b8\u4e0a\u3067\u518d\u914d\u7f6e\u3057\u307e\u3059\u3002\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u6e96\u5099\u304c\u3067\u304d\u305f\u3068\u304d\u306b\u3001\u30c6\u30ad\u30b9\u30c8 \u30ce\u30fc\u30c9\u304c\u3059\u3067\u306b DOM \u306b\u5b58\u5728\u3059\u308b\u305f\u3081\u3001\u3053\u308c\u3089\u306e\u5909\u63db\u306b\u3088\u3063\u3066 CLS \u304c\u30c8\u30ea\u30ac\u30fc\u3055\u308c\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5b9f\u9a13\u4e2d\u306b\u3001\u30da\u30fc\u30b8\u304c JavaScript \u3092\u4f7f\u7528\u3057\u3066\u8aad\u307f\u8fbc\u307e\u308c\u305f\u5f8c\u306b\u30c6\u30ad\u30b9\u30c8\u8981\u7d20\u304c DOM \u306b\u52d5\u7684\u306b\u633f\u5165\u3055\u308c\u3001\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u5316\u3055\u308c\u308b\u3068\u3001Lighthouse \u304c CLS \u3092\u691c\u51fa\u3057\u3001\u305d\u308c\u306b\u5fdc\u3058\u3066\u8a55\u4fa1\u3059\u308b\u3053\u3068\u306b\u6c17\u4ed8\u304d\u307e\u3057\u305f\u3002<\/p>\n<h2><a id=\"you-cant-manipulate-a-speed-index-score-you-cant-manipulate-a-speed-index-score\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><a href=\"#you-cant-manipulate-a-speed-index-score\"><\/a>\u30b9\u30d4\u30fc\u30c9\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30b9\u30b3\u30a2\u3092\u64cd\u4f5c\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093<\/h2>\n<p>\u30b9\u30d4\u30fc\u30c9 \u30a4\u30f3\u30c7\u30c3\u30af\u30b9 \u30b9\u30b3\u30a2\u306f\u3001\u30da\u30fc\u30b8\u304c\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3055\u308c\u308b\u969b\u306e\u8996\u899a\u7684\u306a\u9032\u884c\u306b\u57fa\u3065\u3044\u3066\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u30b7\u30fc\u30b1\u30f3\u30b9\u306e\u65e9\u3044\u6bb5\u968e\u3067\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u901f\u304f\u8aad\u307f\u8fbc\u307e\u308c\u308b\u307b\u3069\u3001\u7d50\u679c\u306f\u3088\u308a\u597d\u307e\u3057\u3044\u3082\u306e\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u30b9\u30d4\u30fc\u30c9 \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u6b3a\u3044\u3066\u8aad\u307f\u8fbc\u307f\u30b7\u30fc\u30b1\u30f3\u30b9\u304c\u9045\u3044\u3068\u8a8d\u8b58\u3055\u305b\u308b\u7279\u5b9a\u306e\u6226\u7565\u3092\u63a1\u7528\u3059\u308b\u3053\u3068\u306f\u53ef\u80fd\u3067\u3059\u3002\u9006\u306b\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u8aad\u307f\u8fbc\u307f\u3092\u4eba\u5de5\u7684\u306b\u9ad8\u901f\u5316\u3059\u308b\u73fe\u5b9f\u7684\u306a\u65b9\u6cd5\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30b9\u30d4\u30fc\u30c9 \u30a4\u30f3\u30c7\u30c3\u30af\u30b9 \u30b9\u30b3\u30a2\u3092\u9ad8\u3081\u308b\u552f\u4e00\u306e\u65b9\u6cd5\u306f\u3001Web \u30da\u30fc\u30b8\u3092\u6539\u826f\u3057\u3066\u3001\u3067\u304d\u308b\u3060\u3051\u591a\u304f\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u8fc5\u901f\u306b\u8aad\u307f\u8fbc\u3080\u3053\u3068\u3067\u3059\u3002\u3053\u306e\u65b9\u6cd5\u306f\u3001\u73fe\u5728\u306e Web \u30b7\u30fc\u30f3\u3067\u306f\u5b8c\u5168\u306b\u5b9f\u7528\u7684\u3067\u306f\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c (\u4e3b\u306b\u30c7\u30b6\u30a4\u30ca\u30fc\u306e\u5f79\u5272\u3092\u5371\u967a\u306b\u3055\u3089\u3059\u305f\u3081)\u3001\u6b21\u306e\u65b9\u6cd5\u3067\u30b9\u30d4\u30fc\u30c9 \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u3053\u3068\u306b\u5168\u529b\u3092\u5c3d\u304f\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u9759\u7684HTML\u30a6\u30a7\u30d6\u30da\u30fc\u30b8\u3092CDN\u304b\u3089\u76f4\u63a5\u914d\u4fe1\u3059\u308b<\/li>\n<li>\u30da\u30fc\u30b8\u304b\u3089\u753b\u50cf\u3092\u7701\u7565\u3057\u3001<\/li>\n<li>CSS\u3092\u524a\u6e1b\u307e\u305f\u306f\u524a\u9664\u3057\u3001<\/li>\n<li>JavaScript \u307e\u305f\u306f\u5916\u90e8\u4f9d\u5b58\u95a2\u4fc2\u306e\u8aad\u307f\u8fbc\u307f\u3092\u505c\u6b62\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2><a id=\"you-also-cant-genuinely-manipulate-a-tbt-score-you-also-cant-genuinely-manipulate-a-tbt-score\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><a href=\"#you-also-cant-genuinely-manipulate-a-tbt-score\"><\/a>TBT\u30b9\u30b3\u30a2\u3092\u5b9f\u969b\u306b\u64cd\u4f5c\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3044<\/h2>\n<p>TBT \u306f\u3001FCP \u5f8c\u3001\u30e1\u30a4\u30f3 \u30b9\u30ec\u30c3\u30c9\u304c JavaScript \u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306b\u3088\u3063\u3066\u59a8\u5bb3\u3055\u308c\u3001\u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c\u3078\u306e\u5fdc\u7b54\u304c\u59a8\u3052\u3089\u308c\u3066\u3044\u305f\u5408\u8a08\u6642\u9593\u3092\u6e2c\u5b9a\u3057\u307e\u3059\u3002\u7406\u60f3\u7684\u306a TBT \u30b9\u30b3\u30a2\u306f 200 \u30df\u30ea\u79d2\u672a\u6e80\u3067\u3059\u3002<\/p>\n<p>JavaScript \u3092\u591a\u7528\u3059\u308b Web \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3 (\u30b7\u30f3\u30b0\u30eb\u30da\u30fc\u30b8 \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306a\u3069) \u3067\u306f\u3001\u8907\u96d1\u306a\u72b6\u614b\u8a08\u7b97\u3084 DOM \u8abf\u6574\u3092\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u4e2d\u306b\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u3067\u5b9f\u884c\u3057 (\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3055\u308c\u305f HTML \u3092\u9001\u4fe1\u3059\u308b\u524d\u306b\u30b5\u30fc\u30d0\u30fc\u5074\u3067\u5b9f\u884c\u3059\u308b\u306e\u3067\u306f\u306a\u304f)\u3001TBT \u30b9\u30b3\u30a2\u304c\u4f4e\u304f\u306a\u308b\u50be\u5411\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u30b7\u30ca\u30ea\u30aa\u3067\u306f\u3001Lighthouse \u8a55\u4fa1\u304c\u7d42\u4e86\u3059\u308b\u307e\u3067\u3059\u3079\u3066\u306e JavaScript \u3092\u5ef6\u671f\u3059\u308b\u3053\u3068\u3067\u3001TBT \u30b9\u30b3\u30a2\u3092\u5909\u66f4\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001FCP \u304a\u3088\u3073 LCP \u306e\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u4eca\u5f8c\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3092\u901a\u77e5\u3059\u308b\u305f\u3081\u306b\u3001\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u30fc \u30b3\u30f3\u30c6\u30f3\u30c4\u307e\u305f\u306f\u8aad\u307f\u8fbc\u307f\u753b\u9762\u3092\u63d0\u4f9b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u4f7f\u7528\u4e2d\u306e\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9 \u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u30ca\u30d3\u30b2\u30fc\u30c8\u3059\u308b\u305f\u3081\u306e\u4f5c\u696d\u3082\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059 (\u30da\u30fc\u30b8\u8aad\u307f\u8fbc\u307f\u30b7\u30fc\u30b1\u30f3\u30b9\u5185\u306e\u4e0d\u78ba\u5b9a\u306a\u6642\u70b9\u3067\u3001\u6700\u7d42\u7684\u306b\u5225\u306e React \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u8aad\u307f\u8fbc\u3080\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u30fc \u30da\u30fc\u30b8\u3092\u8aad\u307f\u8fbc\u3080\u3053\u3068\u306f\u907f\u3051\u3066\u304f\u3060\u3055\u3044)\u3002<\/p>\n<p>\u8208\u5473\u6df1\u3044\u306e\u306f\u3001\u9ad8\u5ea6\u306a JavaScript \u6a5f\u80fd\u304c\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3067\u4f9d\u7136\u3068\u3057\u3066\u666e\u53ca\u3057\u3066\u3044\u308b\u4e00\u65b9\u3067\u3001\u73fe\u5728\u306e Web \u74b0\u5883\u306b\u304a\u3051\u308b\u30a4\u30ce\u30d9\u30fc\u30b7\u30e7\u30f3\u306b\u3088\u3063\u3066\u3001TBT \u30b9\u30b3\u30a2\u304c\u57fa\u6e96\u3092\u4e0b\u56de\u308b\u4e8b\u614b\u306e\u767a\u751f\u3092\u8efd\u6e1b\u3059\u308b\u305f\u3081\u306e\u5171\u540c\u306e\u53d6\u308a\u7d44\u307f\u304c\u4fc3\u9032\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3067\u3059\u3002\u591a\u6570\u306e\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9 \u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u6700\u65b0\u306e\u30db\u30b9\u30c6\u30a3\u30f3\u30b0 \u30b5\u30fc\u30d3\u30b9\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3068\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u306e JavaScript \u3092\u4f7f\u308f\u305a\u306b\u30da\u30fc\u30b8\u3092\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3057\u3001\u8907\u96d1\u306a\u30ed\u30b8\u30c3\u30af\u3092\u30aa\u30f3\u30c7\u30de\u30f3\u30c9\u3067\u5b9f\u884c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u304b\u3089 JavaScript \u3092\u6392\u9664\u3059\u308b\u3053\u3068\u304c\u76ee\u7684\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001JavaScript \u306e\u5c55\u958b\u3092\u6e1b\u3089\u3059\u53ef\u80fd\u6027\u306f\u7121\u6570\u306b\u3042\u308a\u3001\u305d\u308c\u306b\u3088\u3063\u3066\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u4e2d\u306b\u30e1\u30a4\u30f3 \u30b9\u30ec\u30c3\u30c9\u3067\u904e\u5ea6\u306e\u8a08\u7b97\u30bf\u30b9\u30af\u304c\u767a\u751f\u3059\u308b\u30ea\u30b9\u30af\u304c\u8efd\u6e1b\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2><a id=\"in-summary-lighthouse-remains-merely-an-approximate-guide-in-summary-lighthouse-remains-merely-an-approximate-guide\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><a href=\"#in-summary-lighthouse-remains-merely-an-approximate-guide\"><\/a>\u8981\u7d04: Lighthouse\u306f\u5358\u306a\u308b\u304a\u304a\u3088\u305d\u306e\u30ac\u30a4\u30c9\u306b\u904e\u304e\u306a\u3044<\/h2>\n<p>Google Lighthouse \u306f\u3001\u7279\u5b9a\u306e Web \u30b5\u30a4\u30c8\u306e\u3059\u3079\u3066\u306e\u6b20\u9665\u3092\u7279\u5b9a\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002Lighthouse \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30e1\u30c8\u30ea\u30c3\u30af\u306f\u3001\u30e6\u30fc\u30b6\u30fc \u30a2\u30af\u30b7\u30e7\u30f3\u3078\u306e\u5fdc\u7b54\u6027\u3068\u3044\u3046\u89b3\u70b9\u304b\u3089\u30da\u30fc\u30b8\u306e\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3\u3092\u512a\u5148\u3057\u307e\u3059\u304c\u30012024 \u5e74\u306b\u304a\u3051\u308b\u3059\u3079\u3066\u306e\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3\u307e\u305f\u306f\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u306e\u554f\u984c\u3092\u5305\u62ec\u7684\u306b\u7279\u5b9a\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>2019 \u5e74\u3001\u30de\u30cc\u30a8\u30eb\u30fb\u30de\u30c4\u30be\u30d3\u30c3\u30c1\u6c0f\u306f\u3001Lighthouse \u304c\u597d\u610f\u7684\u306b\u8a8d\u8b58\u3057\u305f\u3001\u30c7\u30b6\u30a4\u30f3\u306e\u60aa\u3044 Web \u30da\u30fc\u30b8\u3092\u610f\u56f3\u7684\u306b\u4f5c\u6210\u3059\u308b\u5b9f\u9a13\u3092\u884c\u3044\u307e\u3057\u305f\u3002\u79c1\u306f\u30015 \u5e74\u5f8c\u306b Lighthouse \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3059\u308b\u3060\u308d\u3046\u3068\u63a8\u6e2c\u3057\u307e\u3057\u305f\u304c\u3001\u305d\u3046\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/p>\n<p>\u3053\u306e\u6700\u5f8c\u306e\u30c7\u30e2 \u30da\u30fc\u30b8\u3067\u306f\u3001CSS \u3068 JavaScript \u306b\u3088\u3063\u3066\u5165\u529b\u30a4\u30d9\u30f3\u30c8\u304c\u7121\u52b9\u306b\u306a\u308a\u3001\u30da\u30fc\u30b8\u304c\u30e6\u30fc\u30b6\u30fc\u306e\u64cd\u4f5c\u306b\u5fdc\u7b54\u3057\u306a\u304f\u306a\u308a\u307e\u3059\u30025 \u79d2\u5f8c\u3001JavaScript \u306b\u3088\u3063\u3066\u52d5\u4f5c\u304c\u5909\u66f4\u3055\u308c\u3001\u30dc\u30bf\u30f3\u306e\u64cd\u4f5c\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u9a5a\u304f\u3079\u304d\u3053\u3068\u306b\u3001\u3053\u306e\u30da\u30fc\u30b8\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u306e\u4e21\u65b9\u3067\u6e80\u70b9\u3092\u7dad\u6301\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/i.imgur.com\/TGXW3nq.png\"><img decoding=\"async\" src=\"https:\/\/i.imgur.com\/TGXW3nq.png\" alt=\"\u5f79\u306b\u7acb\u305f\u305a\u3001\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044 Web \u30da\u30fc\u30b8\u306b\u5bfe\u3057\u3066\u3001\u5b8c\u74a7\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u306e\u8a55\u4fa1\u3092\u8868\u793a\u3059\u308b Lighthouse \u306e\u30a4\u30e9\u30b9\u30c8\u3002\" \/><\/a><\/p>\n<p>\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3\u8a55\u4fa1\u3068\u8ad6\u7406\u7684\u63a8\u8ad6\u306e\u4ee3\u308f\u308a\u3068\u3057\u3066 Lighthouse \u306e\u307f\u306b\u4f9d\u5b58\u3059\u308b\u3053\u3068\u306f\u304a\u52e7\u3081\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<h2><a id=\"additional-silly-exploits-additional-silly-exploits\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><a href=\"#additional-silly-exploits\"><\/a>\u8ffd\u52a0\u306e\u6c17\u307e\u3050\u308c\u306a\u5192\u967a<\/h2>\n<p>\u4eba\u751f\u306e\u3042\u3089\u3086\u308b\u5074\u9762\u306b\u304a\u3044\u3066\u3001\u30b7\u30b9\u30c6\u30e0\u3092\u64cd\u4f5c\u3059\u308b\u6226\u7565\u304c\u5b58\u5728\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u793a\u3059\u306e\u306f\u3001Lighthouse \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30b9\u30b3\u30a2\u3092\u4eba\u70ba\u7684\u306b\u9ad8\u3081\u3001\u4ed6\u306e\u3059\u3079\u3066\u3092\u4e0a\u56de\u308b\u3001\u5b9f\u8a3c\u6e08\u307f\u3067\u4fdd\u8a3c\u3055\u308c\u305f\u6226\u8853\u3067\u3059\u3002<\/p>\n<ul>\n<li>\u9ad8\u901f\u304b\u3064\u6700\u4e0a\u4f4d\u306e\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306e\u307f\u3067 Lighthouse 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