{"id":3308,"date":"2020-10-21T10:50:23","date_gmt":"2020-10-21T01:50:23","guid":{"rendered":"https:\/\/fastcoding.jp\/blog\/?p=3308"},"modified":"2021-04-06T11:47:57","modified_gmt":"2021-04-06T02:47:57","slug":"pagespeed","status":"publish","type":"post","link":"https:\/\/fastcoding.jp\/blog\/all\/info\/pagespeed\/","title":{"rendered":"\u30102020\u5e74\u5fc5\u9808\u3011\u30da\u30fc\u30b8\u30b9\u30d4\u30fc\u30c9\u3092\u4e0a\u3052\u308b\uff01PageSpeed Insights\u5bfe\u7b56"},"content":{"rendered":"<div class=\"the_content\"><p>\u3053\u3093\u306b\u3061\u306f\u3002FASTCODING\u30c7\u30b6\u30a4\u30ca\u30fc\u306e\u4e03\u8ee2\u3073\u516b\u91cd\u5b50\u3067\u3059\u3002<br \/>\n\u307f\u306a\u3055\u3093SEO\u5bfe\u7b56\u306e\u4e00\u3064\u3001\u300c\u30da\u30fc\u30b8\u30b9\u30d4\u30fc\u30c9\u5bfe\u7b56\u300d\u3057\u3066\u307e\u3059\u304b\uff1f<br \/>\n\u30da\u30fc\u30b8\u30b9\u30d4\u30fc\u30c9\u304c\u9045\u3044\u3068\u691c\u7d22\u7d50\u679c\u3067\u306e\u30e9\u30f3\u30ad\u30f3\u30b0\u304c\u4e0b\u304c\u3063\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3001\u4ed6\u306b\u3082\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u96e2\u8131\u3057\u3084\u3059\u304f\u306at\u305f\u308a\u3001\u30b3\u30f3\u30d0\u30fc\u30b8\u30e7\u30f3\u7387\u306b\u3082\u5f71\u97ff\u3059\u308b\u3068\u8a00\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u4eca\u56de\u306f\u3001\u6539\u3081\u3066\u30da\u30fc\u30b8\u30b9\u30d4\u30fc\u30c9\u5bfe\u7b56\u3092\u307e\u3068\u3081\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n<div class=\"table-of-contents\">\n<p class=\"head-ct\">\u76ee\u6b21<\/p>\n<ol>\n<li><a href=\"#no1\"><strong>\u30da\u30fc\u30b8\u30b9\u30d4\u30fc\u30c9\u5bfe\u7b56\u306e\u91cd\u8981\u6027<\/strong><\/a><\/li>\n<li><a href=\"#no2\"><strong>PageSpeed Insights\uff08\u30da\u30fc\u30b8\u30b9\u30d4\u30fc\u30c9\u30a4\u30f3\u30b5\u30a4\u30c8\uff09\u3092\u5229\u7528\u3059\u308b<\/strong><\/a>\n<ul>\n<li><a href=\"#no2-1\"><strong>1) \u30d5\u30a9\u30fc\u30eb\u30c9\u30c7\u30fc\u30bf<\/strong><\/a><\/li>\n<li><a href=\"#no2-2\"><strong>2) \u30e9\u30dc\u30c7\u30fc\u30bf<\/strong><\/a><\/li>\n<li><a href=\"#no2-3\"><strong>3) \u8a3a\u65ad\u3068\u76e3\u67fb<\/strong><\/a><\/li>\n<\/ul>\n<\/li>\n<li><a href=\"#no3\"><strong>\u30b5\u30a4\u30c8\u30b9\u30d4\u30fc\u30c9\u3092\u6539\u5584\u3059\u308b11\u306e\u65b9\u6cd5<\/strong><\/a>\n<ul>\n<li><a href=\"#no3-1\"><strong>1) CSS\u3001HTML\u3001JavaScript\u3092\u7e2e\u5c0f\u3059\u308b<\/strong><\/a><\/li>\n<li><a href=\"#no3-2\"><strong>2) \u9069\u5207\u306a\u30b5\u30a4\u30ba\u306e\u753b\u50cf<\/strong><\/a><\/li>\n<li><a href=\"#no3-3\"><strong>3) \u4f7f\u7528\u3057\u3066\u3044\u306a\u3044 CSS \u3092\u524a\u9664\u3059\u308b<\/strong><\/a><\/li>\n<li><a href=\"#no3-4\"><strong>4) \u30c6\u30ad\u30b9\u30c8\u5727\u7e2e\u306e\u6709\u52b9\u5316<\/strong><\/a><\/li>\n<li><a href=\"#no3-5\"><strong>5) \u30b5\u30fc\u30d0\u30fc\u306e\u5fdc\u7b54\u6642\u9593\u3092\u77ed\u7e2e\u3059\u308b<\/strong><\/a><\/li>\n<li><a href=\"#no3-6\"><strong>6) \u8907\u6570\u30da\u30fc\u30b8\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306e\u56de\u907f<\/strong><\/a><\/li>\n<li><a href=\"#no3-7\"><strong>7) \u30a6\u30a7\u30d6\u30d5\u30a9\u30f3\u30c8\u8aad\u307f\u8fbc\u307f\u4e2d\u306e\u5168\u30c6\u30ad\u30b9\u30c8\u8868\u793a<\/strong><\/a><\/li>\n<li><a href=\"#no3-8\"><strong>8) \u30aa\u30d5\u30b9\u30af\u30ea\u30fc\u30f3\u753b\u50cf\u306e\u9045\u5ef6\u8aad\u307f\u8fbc\u307f<\/strong><\/a><\/li>\n<li><a href=\"#no3-9\"><strong>9) \u6b21\u4e16\u4ee3\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3067\u306e\u753b\u50cf\u306e\u914d\u4fe1<\/strong><\/a><\/li>\n<li><a href=\"#no3-10\"><strong>10) \u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u59a8\u3052\u308b\u30ea\u30bd\u30fc\u30b9\u306e\u9664\u5916<\/strong><\/a><\/li>\n<li><a href=\"#no3-11\"><strong>11) \u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u51e6\u7406\u306e\u6700\u5c0f\u5316<\/strong><\/a><\/li>\n<\/ul>\n<\/li>\n<li><a href=\"#no4\"><strong>\u307e\u3068\u3081<\/strong><\/a><\/li>\n<\/ol>\n<\/div>\n<p><br id=\"no1\" \/><\/p>\n<h2>\u30da\u30fc\u30b8\u30b9\u30d4\u30fc\u30c9\u5bfe\u7b56\u306e\u91cd\u8981\u6027<\/h2>\n<p>\u30da\u30fc\u30b8\u30b9\u30d4\u30fc\u30c9\u3068\u306f\u3001Web\u30b5\u30a4\u30c8\u4e0a\u306e\u30da\u30fc\u30b8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u3001\u305d\u306e\u30da\u30fc\u30b8\u4e0a\u306e\u3059\u3079\u3066\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u8868\u793a\u3055\u308c\u308b\u307e\u3067\u306b\u304b\u304b\u308b\u6642\u9593\u306e\u3053\u3068\u3002\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u306e\u3067\u3001Google\u306f\u691c\u7d22\u30e9\u30f3\u30ad\u30f3\u30b0\u306e\u6307\u6a19\u306e\u4e00\u3064\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p class=\"text_box_red\">\u30fb\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u6642\u9593\u304c1\u79d2\u304b\u30895\u79d2\u306b\u306a\u308b\u3068\u3001\u76f4\u5e30\u7387\u306f90\uff05\u307e\u3067\u5897\u52a0<br \/>\n\u30fb\u30e2\u30d0\u30a4\u30eb\u30b5\u30a4\u30c8\u306b\u8a2a\u554f\u3057\u305f\u30e6\u30fc\u30b6\u30fc\u304c\uff15\uff13\uff05\u304c\u3001\u30ed\u30fc\u30c9\u306b3\u79d2\u4ee5\u4e0a\u304b\u304b\u308b\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304b\u3089\u5373\u96e2\u8131<\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001PC\u30da\u30fc\u30b8\u3001\u30e2\u30d0\u30a4\u30eb\u5411\u3051\u30da\u30fc\u30b8\u3068\u3082\u306b\u3001\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u304b\u3089\u30da\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u308b\u307e\u3067\u306e\u30b9\u30d4\u30fc\u30c9\u3092\u65e9\u3081\u308b\u3088\u3046\u306aSEO\u5bfe\u7b56\u3092\u65bd\u3059\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>PageSpeed Insights\uff08\u30da\u30fc\u30b8\u30b9\u30d4\u30fc\u30c9\u30a4\u30f3\u30b5\u30a4\u30c8\uff09\u3092\u5229\u7528\u3059\u308b<\/h2>\n<p class=\"text_box_blue\"><a href=\"https:\/\/developers.google.com\/speed\/pagespeed\/insights\/?hl=JA\" target=\"_blank\" rel=\"noopener noreferrer\">PageSpeed Insights <\/a><\/p>\n<p>\u4f7f\u3044\u65b9\u306f\u7c21\u5358\u3067\u3059\u3002\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3001\u8abf\u3079\u305f\u3044Web\u30b5\u30a4\u30c8URL\u3092\u691c\u7d22\u30d0\u30fc\u306b\u5165\u529b\u3057\u3066\u300c\u5206\u6790\u300d\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n<h4>PageSpeed Insights\u306e\u6e2c\u5b9a\u3067\u8868\u793a\u3055\u308c\u308b\u60c5\u5831<\/h4>\n<ul>\n<li>\u30d5\u30a3\u30fc\u30eb\u30c9\u30c7\u30fc\u30bf\uff1aChrome UX Report\uff08CrUX\uff09\u306e\u30ec\u30dd\u30fc\u30c8\u304c\u51fa\u305b\u308b<\/li>\n<li>\u30e9\u30dc\u30c7\u30fc\u30bf\uff1aLighthouse\u3067\u5206\u6790\u3092\u884c\u3063\u305f\u7d50\u679c<\/li>\n<li>\u6539\u5584\u3067\u304d\u308b\u9805\u76ee\uff1a\u30da\u30fc\u30b8\u8868\u793a\u901f\u5ea6\u306e\u5411\u4e0a\u3092\u72d9\u3046\u305f\u3081\u306e\u6539\u5584\u6848<\/li>\n<li>\u8a3a\u65ad\uff1a\u30da\u30fc\u30b8\u8868\u793a\u901f\u5ea6\u304cWeb\u958b\u767a\u306b\u3066\u9069\u3057\u3066\u3044\u308b\u8a2d\u5b9a\u306b\u8fd1\u3044\u304b\u306e\u9805\u76ee<\/li>\n<li>\u5408\u683c\u3057\u305f\u76e3\u67fb\uff1a\u554f\u984c\u304c\u306a\u3044\u3068\u5224\u65ad\u3055\u308c\u305f\u9805\u76ee<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3321\" src=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2020\/09\/2.png\" alt=\"\" width=\"800\" height=\"440\" srcset=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2020\/09\/2.png 800w, https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2020\/09\/2-300x165.png 300w, https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2020\/09\/2-768x422.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h3>1) \u30d5\u30a9\u30fc\u30eb\u30c9\u30c7\u30fc\u30bf<\/h3>\n<p>Google\u304c\u30da\u30fc\u30b8\u306e\u8868\u793a\u901f\u5ea6\u306e\u5224\u65ad\u3068\u3057\u3066\u4f7f\u7528\u3057\u3066\u3044\u308b\u30c7\u30fc\u30bf\u3067\u3042\u308bChrome UX Report\uff08Chrome\u4e0a\u3067\u306e\u30b5\u30a4\u30c8\u306eUX\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u78ba\u8a8d\u3067\u304d\u308b\uff09\u304b\u3089\u30ec\u30dd\u30fc\u30c8\u3092\u51fa\u3057\u3066\u304f\u308c\u307e\u3059\u3002<br \/>\n\u4e0b\u8a18\u753b\u50cf\u306e\u8d64\u67a0\u300c\u63d0\u4f9b\u5143\u306e\u6982\u8981\u3092\u8868\u793a\u300d\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3053\u3068\u3067\u3001Chrome UX Report\u3068\u6bd4\u8f03\u3057\u305f\u5168\u3066\u306e\u30da\u30fc\u30b8\u306e\u901f\u5ea6\u306e\u5224\u5b9a\u304c\u898b\u3089\u308c\u307e\u3059\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3325\" src=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2020\/09\/4-1.png\" alt=\"\" width=\"800\" height=\"532\" srcset=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2020\/09\/4-1.png 800w, https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2020\/09\/4-1-300x200.png 300w, https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2020\/09\/4-1-768x511.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h4>First Contentful Paint\uff08FCP\uff09\u3068\u306f?<\/h4>\n<p>\u5bfe\u8c61\u30b5\u30a4\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u958b\u59cb\u304b\u3089DOM\u8981\u7d20\u306e\u8868\u793a\u958b\u59cb\u6642\u70b9\u307e\u3067\u306e\u6642\u9593\u3068\u306a\u308a\u307e\u3059\u3002\u5927\u307e\u304b\u306b\u8868\u73fe\u3059\u308c\u3070\u3001<span style=\"font-weight: bold; font-size: 16px; background-color: #ffff00; padding: 5px 0;\">JavaScript\u3084CSS\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u7b49\u306e\u30a8\u30d5\u30a7\u30af\u30c8\u3092\u9664\u3044\u305f\u3001\u6700\u4f4e\u9650\u306e\u30da\u30fc\u30b8\u3092\u8868\u793a\u3059\u308b\u305f\u3081\u306e\u6e96\u5099\u304c\u6574\u3046\u307e\u3067\u306e\u6642\u9593<\/span>\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h4>First Input Delay\uff08FID\uff09\u3068\u306f\uff1f<\/h4>\n<p>\u5bfe\u8c61\u30b5\u30a4\u30c8\u306b\u304a\u3044\u3066\u3001\u4f55\u304b\u3057\u3089\u306e<span style=\"font-weight: bold; font-size: 16px; background-color: #ffff00; padding: 5px 0;\">\u30e6\u30fc\u30b6\u64cd\u4f5c\uff08\u30ea\u30f3\u30af\u3092\u30af\u30ea\u30c3\u30af\u3001\u30dc\u30bf\u30f3\u3092\u30bf\u30c3\u30d7\u3001JavaScipt\u3092\u7528\u3044\u305f\u64cd\u4f5c\u7b49\uff09\u304c\u884c\u308f\u308c\u3066\u304b\u3089\u53cd\u5fdc\u304c\u8fd4\u3063\u3066\u304f\u308b\u307e\u3067\u306e\u6642\u9593<\/span>\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h4>Largest Contentful Paint\uff08LCP\uff09\u3068\u306f\uff1f<\/h4>\n<p>\u5bfe\u8c61\u30b5\u30a4\u30c8\u304c<span style=\"font-weight: bold; font-size: 16px; background-color: #ffff00; padding: 5px 0;\">\u6700\u3082\u5927\u304d\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\uff08\u753b\u50cf\u30fb\u52d5\u753b\u306e\u521d\u671f\u8868\u793a\u753b\u50cf\u30fb\u80cc\u666f\u753b\u50cf\u306e\u3042\u308b\u8981\u7d20\u30fb\u30c6\u30ad\u30b9\u30c8\u3092\u542b\u3080\u30d6\u30ed\u30c3\u30af\u30ec\u30d9\u30eb\u8981\u7d20\u306a\u3069\u3001\u305d\u306e\u30da\u30fc\u30b8\u3067\u30e1\u30a4\u30f3\u3068\u306a\u308b\u30b3\u30f3\u30c6\u30f3\u30c4\uff09\u304c\u8868\u793a\u3055\u308c\u308b\u307e\u3067\u306e\u6642\u9593\u3002<\/span>Core Web Vitals\u306e\u6307\u6a19\u306e\u4e00\u3064\u3067\u3082\u3042\u308a\u307e\u3059\u304c\u30012.5\u79d2\u4ee5\u5185\u306b\u8868\u793a\u3055\u308c\u308b\u3068\u512a\u826f\u3067\u3059\u3002<\/p>\n<h4>Cumulative Layout Shift\uff08CLS\uff09\u3068\u306f\uff1f<\/h4>\n<p>\u300c\u7d2f\u7a4d\u30ec\u30a4\u30a2\u30a6\u30c8\u5909\u66f4\u300d\u306e\u610f\u5473\u3067\u3001\u8996\u899a\u8981\u7d20\u306e\u5b89\u5b9a\u6027\u3092\u793a\u3059\u6307\u6a19\u3002<br \/>\n\u3053\u3061\u3089\u3082\u3001Core Web Vitals\u306e\u6307\u6a19\u306e\u4e00\u3064\u3067\u30e6\u30fc\u30b6\u30fc\u304c\u610f\u56f3\u305b\u306c\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u304c\u3069\u308c\u3050\u3089\u3044\u767a\u751f\u3057\u305f\u304b\u3092\u3001\u72ec\u81ea\u306e\u300c\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\u30b9\u30b3\u30a2\u300d\u3067\u8868\u3059\u3002<\/p>\n<p><strong>Core Web Vitals<\/strong>\u306b\u3064\u3044\u3066\u306f\u3053\u3061\u3089\u3067\u3082\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<br \/>\n<div class=\"linkcard\"><div class=\"lkc-internal-wrap\"><a class=\"lkc-link no_icon\" href=\"https:\/\/fastcoding.jp\/blog\/all\/info\/web-vitals\/\" target=\"_blank\"><div class=\"lkc-card\"><div class=\"lkc-info\"><div class=\"lkc-favicon\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.google.com\/s2\/favicons?domain=fastcoding.jp\/blog\" alt=\"\" width=\"16\" height=\"16\" \/><\/div><div class=\"lkc-domain\">FASTCODING BLOG<\/div><\/div><div class=\"lkc-content\"><figure class=\"lkc-thumbnail\"><img decoding=\"async\" class=\"lkc-thumbnail-img\" src=\"\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2020\/09\/1-150x150.png\" width=\"\" height=\"108px\" alt=\"\" \/><\/figure><div class=\"lkc-title\">Google\u306e\u65b0\u3057\u3044\u691c\u7d22\u30e9\u30f3\u30ad\u30f3\u30b0\u6307\u6a19\u300cCore Web Vitals\u300d\u3068\u306f<\/div><div class=\"lkc-excerpt\">\u3053\u3093\u306b\u3061\u306f\u3002FASTCODING\u30c7\u30b6\u30a4\u30ca\u30fc\u306e\u4e03\u8ee2\u3073\u516b\u91cd\u5b50\u3067\u3059\u3002Google\u306f2020\u5e745\u670828\u65e5\u3001\u691c\u7d22\u30e9\u30f3\u30ad\u30f3\u30b0\u306e\u8981\u56e0\u306b\u3001Web\u30da\u30fc\u30b8\u306e\u300c\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u300d\u3092\u3088\u308a\u91cd\u8996\u3059\u308b\u3053\u3068\u3092\u767a\u8868\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u307e\u3067\u306e\u57fa\u672c\u6307\u6a19\u306b\u52a0\u3048\u3001\u300cCore Web Vitals\uff08\u30b3\u30a2\u30a6\u30a7\u30d6\u30d0\u30a4\u30bf\u30eb\uff09\u300d\u30922021\u5e74\u3092\u76ee\u51e6\u306b \u30e9\u30f3\u30ad\u30f3\u30b0\u306e\u6307\u6a19\u306b\u52a0\u3048\u308b\u3088\u3046\u3067\u3059\u3002\u4eca\u56de\u306f\u3053\u306e\u300cCore Web Vitals\uff08\u30b3\u30a2\u30a6\u30a7\u30d6\u30d0\u30a4\u30bf\u30eb\uff09\u300d\u306b\u3064\u3044\u3066\u3001\u307e\u3068\u3081\u3066\u307f\u307e\u3057\u305f\u3002  \u76ee\u6b21      Core Web Vitals\uff08\u30b3\u30a2\u30a6\u30a7\u30d6\u30d0\u30a4\u30bf\u30eb\uff09\u3068\u306f\uff1f    3\u3064\u306e\u6307\u6a19\u300cLCP\u300d\u300cFID\u300d\u300cCLS\u300d\u3068\u306f\uff1f        1) LCP\uff08Largest Contentfu...<\/div><\/div><div class=\"clear\"><\/div><\/div><\/a><\/div><\/div><\/p>\n<p>&nbsp;<\/p>\n<h3>2) \u30e9\u30dc\u30c7\u30fc\u30bf<\/h3>\n<p>Lighthouse\u3067\u5f97\u3089\u308c\u305f\u30c7\u30fc\u30bf\u3092\u5143\u306b\u3001\u4ee5\u4e0b\u306e 6\u3064\u306e\u6307\u6a19 \u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<br \/>\n\u30d5\u30a3\u30fc\u30eb\u30c9\u30c7\u30fc\u30bf\u3068\u540c\u3058\u3088\u3046\u306b\u3001\u5404\u6307\u6a19\u304c\u300c\u65e9\u3044\uff08\u30b0\u30ea\u30fc\u30f3\uff09\u300d\u300c\u5e73\u5747\uff08\u30aa\u30ec\u30f3\u30b8\uff09\u300d\u300c\u9045\u3044\uff08\u30ec\u30c3\u30c9\uff09\u300d\u306b\u8272\u5206\u3051\u3057\u3066\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3332\" src=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2020\/09\/5-1.png\" alt=\"\" width=\"800\" height=\"267\" srcset=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2020\/09\/5-1.png 800w, https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2020\/09\/5-1-300x100.png 300w, https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2020\/09\/5-1-768x256.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h4>First Contentful Paint \u3068\u306f\uff1f<\/h4>\n<p>\u30b3\u30f3\u30c6\u30f3\u30c4\u307e\u305f\u306f\u3001\u753b\u50cf\u304c\u521d\u3081\u3066\u8868\u793a\u3055\u308c\u308b\u307e\u3067\u306e\u6642\u9593\u3002<\/p>\n<h4>Time to Interactive \u3068\u306f\uff1f<\/h4>\n<p>\u30e6\u30fc\u30b6\u30fc\u304c\u30e1\u30a4\u30f3\u3068\u306a\u308b\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u8868\u793a\u3055\u308c\u305f\u3068\u5224\u65ad\u3059\u308b\u307e\u3067\u306e\u6642\u9593\u3002<\/p>\n<h4>Speed Index \u3068\u306f\uff1f<\/h4>\n<p>\u30da\u30fc\u30b8\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u898b\u3048\u308b\u307e\u3067\u306e\u6642\u9593\u3002<\/p>\n<h4>Total Blocking Time \u3068\u306f\uff1f<\/h4>\n<p>\u30bf\u30b9\u30af\u306e\u51e6\u7406\u6642\u9593\u304c 50 \u30df\u30ea\u79d2\u3092\u4e0a\u56de\u3063\u305f\u5834\u5408\u306e\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u521d\u56de\u63cf\u753b\u304b\u3089\u64cd\u4f5c\u53ef\u80fd\u306b\u306a\u308b\u307e\u3067\u306e\u5408\u8a08\u6642\u9593\uff08\u30df\u30ea\u79d2\uff09\u3002<\/p>\n<h4>Largest Contentful Paint \u3068\u306f\uff1f<\/h4>\n<p>\u6700\u5927\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u63cf\u753b\u306f\u3001\u6700\u3082\u5927\u304d\u306a\u30c6\u30ad\u30b9\u30c8\u307e\u305f\u306f\u753b\u50cf\u304c\u63cf\u753b\u3055\u308c\u308b\u307e\u3067\u306b\u304b\u304b\u3063\u305f\u6642\u9593\u3002<\/p>\n<h4>Cumulative Layout Shift \u3068\u306f\uff1f<\/h4>\n<p>\u30d3\u30e5\u30fc\u30dd\u30fc\u30c8\u5185\u306e\u8996\u899a\u8981\u7d20\u304c\u3069\u306e\u304f\u3089\u3044\u79fb\u52d5\u3057\u3066\u3044\u308b\u304b\u3092\u6e2c\u5b9a\u3059\u308b\u6307\u6a19<\/p>\n<p>&nbsp;<\/p>\n<h3>3) \u8a3a\u65ad\u3068\u5408\u683c\u3057\u305f\u76e3\u67fb<\/h3>\n<p><strong>\u8a3a\u65ad<\/strong>\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u95a2\u3059\u308b\u6539\u5584\u70b9\u3092\u4e0a\u3052\u3066\u304f\u308c\u307e\u3059\u3002\u3053\u3061\u3089\u3082\u6539\u5584\u3059\u308b\u3053\u3068\u3067\u3001\u6642\u77ed\u306e\u52b9\u679c\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<br \/>\n<strong>\u5408\u683c\u3057\u305f\u76e3\u67fb<\/strong>\u306f\u3001PageSpeed Insights\u306e\u30c4\u30fc\u30eb\u3067\u6539\u5584\u306e\u5fc5\u8981\u304c\u306a\u3044\u3068\u5224\u65ad\u3055\u308c\u305f\u9805\u76ee\u304c\u898b\u308c\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3335\" src=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2020\/09\/6-1.png\" alt=\"\" width=\"800\" height=\"435\" srcset=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2020\/09\/6-1.png 800w, https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2020\/09\/6-1-300x163.png 300w, https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2020\/09\/6-1-768x418.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2>\u30b5\u30a4\u30c8\u30b9\u30d4\u30fc\u30c9\u3092\u6539\u5584\u3059\u308b11\u306e\u65b9\u6cd5<\/h2>\n<h3 id=\"no3-1\">1) CSS\u3001HTML\u3001JavaScript\u3092\u7e2e\u5c0f\u3059\u308b<\/h3>\n<p>\u30df\u30cb\u30d5\u30a1\u30a4\u3068\u547c\u3070\u308c\u308b\u30d5\u30a1\u30a4\u30eb\u5727\u7e2e\u3067\u3001\u4f59\u5206\u306a\u30b9\u30da\u30fc\u30b9\u3001\u6539\u884c\u3001\u30a4\u30f3\u30c7\u30f3\u30c8\u306a\u3069\u306e\u4e0d\u8981\u306a\u30d0\u30a4\u30c8\u3092\u53d6\u308a\u9664\u304d\u5727\u7e2e\u3057\u307e\u3059\u3002<\/p>\n<h3 id=\"no3-2\">2) \u9069\u5207\u306a\u30b5\u30a4\u30ba\u306e\u753b\u50cf<\/h3>\n<p>\u30d3\u30e5\u30fc\u30dd\u30fc\u30c8\uff08\u8868\u793a\u9818\u57df\u306e\u5927\u304d\u3055\uff09\u306b\u5408\u308f\u305b\u3066\u9069\u5207\u306a\u89e3\u50cf\u5ea6\u306b\u8abf\u6574\u3057\u305f\u753b\u50cf\u3092\u5229\u7528\u3059\u308b\u3088\u3046\u306bHTML\u3084CSS\u3092\u7de8\u96c6\u3057\u307e\u3059\u3002<\/p>\n<h3 id=\"no3-3\">3) \u4f7f\u7528\u3057\u3066\u3044\u306a\u3044 CSS \u3092\u524a\u9664\u3059\u308b<\/h3>\n<p>\u5229\u7528\u3057\u3066\u3044\u306a\u3044\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u524a\u9664\u3057\u307e\u3059\u3002\u307e\u305f\u30da\u30fc\u30b8\u6bce\u306b\u5fc5\u8981\u6700\u4f4e\u9650\u306aCSS\u306e\u307f\u3092\u5229\u7528\u3059\u308b\u3068\u3044\u3063\u305f\u30d5\u30a1\u30a4\u30eb\u69cb\u9020\u306e\u5909\u66f4\u3082\u52b9\u679c\u3092\u767a\u63ee\u3057\u307e\u3059\u3002<\/p>\n<h3 id=\"no3-4\">4) \u30c6\u30ad\u30b9\u30c8\u5727\u7e2e\u306e\u6709\u52b9\u5316<\/h3>\n<p>HTTP\u901a\u4fe1\u4e0a\u306e\u5727\u7e2e\uff08gzip, deflate\u7b49\uff09\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u4e3b\u306b\u30b5\u30fc\u30d0\u30fc\u8a2d\u5b9a\u306e\u8abf\u6574\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3 id=\"no3-5\">5) \u30b5\u30fc\u30d0\u30fc\u306e\u5fdc\u7b54\u6642\u9593\u3092\u77ed\u7e2e\u3059\u308b<\/h3>\n<p>\u901f\u5ea6\u306e\u9045\u3044\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3 \u30ed\u30b8\u30c3\u30af\u3001\u9045\u3044\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3001\u9045\u3044\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 \u30af\u30a8\u30ea\u3001\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3001\u30e9\u30a4\u30d6\u30e9\u30ea\u3001\u30ea\u30bd\u30fc\u30b9\u306b\u3088\u308bCPU\u306e\u6d88\u8cbb\u3001\u30e1\u30e2\u30ea\u4e0d\u8db3\u306a\u3069\u6539\u5584\u3057\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u5fdc\u7b54\u6642\u9593\u306f 200\u30df\u30ea\u79d2\u4ee5\u4e0b\u306b\u6e1b\u3089\u3057\u307e\u3059\u3002<\/p>\n<h3 id=\"no3-6\">6) \u8907\u6570\u30da\u30fc\u30b8\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306e\u56de\u907f<\/h3>\n<p>\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306f\u5897\u3048\u308c\u3070\u5897\u3048\u308b\u307b\u3069\u901f\u5ea6\u4f4e\u4e0b\u3092\u62db\u304d\u307e\u3059\u3002\u57fa\u672c\u7684\u306b\u306f\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3092\u89e3\u9664\u3057\u307e\u3059\u3002<\/p>\n<h3 id=\"no3-7\">7) \u30a6\u30a7\u30d6\u30d5\u30a9\u30f3\u30c8\u8aad\u307f\u8fbc\u307f\u4e2d\u306e\u5168\u30c6\u30ad\u30b9\u30c8\u8868\u793a<\/h3>\n<p>\u30a6\u30a7\u30d6\u30d5\u30a9\u30f3\u30c8\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u306b\u3001\u30d5\u30a9\u30f3\u30c8\u30c7\u30fc\u30bf\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u307e\u3067\u306e\u8868\u793a\u30d5\u30a9\u30f3\u30c8\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<h3 id=\"no3-8\">8) \u30aa\u30d5\u30b9\u30af\u30ea\u30fc\u30f3\u753b\u50cf\u306e\u9045\u5ef6\u8aad\u307f\u8fbc\u307f<\/h3>\n<p>\u30d5\u30a1\u30fc\u30b9\u30c8\u30d3\u30e5\u30fc\u4ee5\u4e0b\u306e\u8981\u7d20\u306b\u5b58\u5728\u3059\u308b\u753b\u50cf\u306e\u8aad\u307f\u8fbc\u307f\u3092\u9045\u5ef6\u3055\u305b\u307e\u3059\u3002lazyload\u7b49\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u5229\u7528\u3057\u307e\u3059\u3002<\/p>\n<h3 id=\"no3-9\">9) \u6b21\u4e16\u4ee3\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3067\u306e\u753b\u50cf\u306e\u914d\u4fe1<\/h3>\n<p>\u73fe\u5728\u3001Web\u30b5\u30a4\u30c8\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u753b\u50cf\u306fJPG\u3001GIF\u3001PNG\u306a\u3069\u304c\u4e00\u822c\u7684\u3067\u3059\u304c\u3001Google PageSpeed Insights\u3067\u306f\u3001JPEG 2000\u3001JPEG XR\u3001WebP \u306a\u3069\u306e\u753b\u50cf\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u4f7f\u7528\u304c\u3001\u30da\u30fc\u30b8\u306e\u8868\u793a\u901f\u5ea6\u5411\u4e0a\u306b\u7e4b\u304c\u308b\u3068\u63a8\u5968\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u753b\u50cf\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u81ea\u4f53\u3092\u6b21\u4e16\u4ee3\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306b\u5909\u66f4\u3059\u308b\u5834\u5408\u3001\u4e00\u90e8\u306e\u30d6\u30e9\u30a6\u30b6\u3067\u8868\u793a\u3067\u304d\u306a\u304f\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u5bfe\u5fdc\u3057\u305f\u3044\u30d6\u30e9\u30a6\u30b6\u306b\u3088\u3063\u3066\u5bfe\u5fdc\u3092\u5224\u65ad\u3057\u307e\u3059\u3002<\/p>\n<h3 id=\"no3-10\">10) 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