{"id":53435,"date":"2026-07-16T18:08:16","date_gmt":"2026-07-16T09:08:16","guid":{"rendered":"https:\/\/mieru-ca.com\/blog\/?p=53435"},"modified":"2026-07-16T18:29:24","modified_gmt":"2026-07-16T09:29:24","slug":"cls","status":"publish","type":"post","link":"https:\/\/mieru-ca.com\/blog\/cls\/","title":{"rendered":"CLS\u3069\u3046\u6539\u5584\u3059\u308b\uff1f \u6e2c\u5b9a\u6cd5\u30fb\u4f4e\u4e0b\u539f\u56e0\u30fb\u5bfe\u7b56\uff08\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306e\u5834\u5408\u3082\u89e3\u8aac\uff09"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CLS\uff08\u7d2f\u7a4d\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\uff09\u3068\u306f\u3001\u30da\u30fc\u30b8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u969b\u306b\u8d77\u304d\u308b<strong>\u4e88\u671f\u3057\u306a\u3044\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c<\/strong>\u3092\u6570\u5024\u5316\u3057\u305fCore Web Vitals\u306e\u6307\u6a19\u3067\u3059\u3002CLS\u306e\u6570\u5024\u304c\u9ad8\u3044\u30da\u30fc\u30b8\u306f\u8aad\u307f\u624b\u306b\u3068\u3063\u3066\u64cd\u4f5c\u3057\u3065\u3089\u304f\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u640d\u306d\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001SEO\u3078\u3082\u9593\u63a5\u7684\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u3053\u3067\u672c\u8a18\u4e8b\u3067\u306f\u73fe\u5f79SEO\u30b3\u30f3\u30b5\u30eb\u30bf\u30f3\u30c8\u76e3\u4fee\u306e\u3082\u3068\u3001CLS\u306e\u6e2c\u5b9a\u65b9\u6cd5\u30fb\u60aa\u5316\u306e\u539f\u56e0\u30fb\u539f\u56e0\u5225\u306e\u6539\u5584\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<a href=\"https:\/\/search.google.com\/search-console\/about\" target=\"_blank\" rel=\"noopener\" title=\"\">Google Search Console<\/a>\uff08\u30b5\u30fc\u30c1\u30b3\u30f3\u30bd\u30fc\u30eb\uff09\u3084<a href=\"https:\/\/pagespeed.web.dev\/\" target=\"_blank\" rel=\"noopener\" title=\"\">PageSpeed Insights<\/a>\uff08\u30da\u30fc\u30b8\u30b9\u30d4\u30fc\u30c9\u30a4\u30f3\u30b5\u30a4\u30c8\uff09\u3067CLS\u3092\u6307\u6458\u3055\u308c\u305f\u65b9\u3001\u3053\u308c\u3092\u8aad\u3093\u3067\u30b9\u30b3\u30a2\u3092\u6539\u5584\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a5f62b2da0df&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a5f62b2da0df\" class=\"wp-block-image size-large wp-lightbox-container\"><img decoding=\"async\" width=\"800\" height=\"450\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-src=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/CLS-improvement-1-1-800x450.png\" alt=\"CLS\u6539\u5584\" class=\"wp-image-53531 lazyload\" data-srcset=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/CLS-improvement-1-1-800x450.png 800w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/CLS-improvement-1-1-400x225.png 400w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/CLS-improvement-1-1-200x113.png 200w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/CLS-improvement-1-1-768x432.png 768w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/CLS-improvement-1-1-1536x864.png 1536w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/CLS-improvement-1-1-2048x1152.png 2048w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/450;\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<div class=\"c-box--toc\">\n<p class=\"c-box--toc__ttl\">\u76ee\u6b21<\/p>\n<ul class=\"c-box--toc__list-lv2\">\n<li class=\"c-box--toc__list-lv2__item\"><a href=\"#01\">CLS\uff08\u7d2f\u7a4d\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\uff09\u3068\u306f<\/a><\/li>\n<li class=\"c-box--toc__list-lv2__item\"><a href=\"#02\">CLS\u306e\u6e2c\u5b9a\u30c4\u30fc\u30eb\u30fb\u6e2c\u5b9a\u65b9\u6cd5<\/a><\/li>\n<li class=\"c-box--toc__list-lv2__item\"><a href=\"#03\">CLS\u304c\u60aa\u5316\u3059\u308b3\u3064\u306e\u539f\u56e0<\/a><\/li>\n<li class=\"c-box--toc__list-lv3__item\"><a href=\"#03.1\">1. \u753b\u50cf\u30fb\u52d5\u753b\u306e\u30b5\u30a4\u30ba\u672a\u6307\u5b9a<\/a><\/li>\n<li class=\"c-box--toc__list-lv3__item\"><a href=\"#03.2\">2. \u5e83\u544a\u30fb\u57cb\u3081\u8fbc\u307f\u306a\u3069\u306e\u30b9\u30da\u30fc\u30b9\u672a\u78ba\u4fdd<\/a><\/li>\n<li class=\"c-box--toc__list-lv3__item\"><a href=\"#03.3\">3. Web\u30d5\u30a9\u30f3\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u9045\u5ef6<\/a><\/li>\n<li class=\"c-box--toc__list-lv2__item\"><a href=\"#04\">CLS\u6539\u5584\u524d\u306e\u6ce8\u610f\u70b9\uff5c\u5fc5\u305a\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u53d6\u308d\u3046<\/a><\/li>\n<li class=\"c-box--toc__list-lv2__item\"><a href=\"#05\">CLS\u306e\u539f\u56e0\u5225\u306e\u6539\u5584\u6cd5<\/a><\/li>\n<li class=\"c-box--toc__list-lv3__item\"><a href=\"#05.1\">1. \u753b\u50cf\u30fb\u52d5\u753b\u306bwidth\u30fbheight\u5c5e\u6027\u3092\u6307\u5b9a\u3059\u308b<\/a><\/li>\n<li class=\"c-box--toc__list-lv3__item\"><a href=\"#05.2\">2. \u5e83\u544a\u30fb\u57cb\u3081\u8fbc\u307f\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u8868\u793a\u9818\u57df\u3092\u4e8b\u524d\u78ba\u4fdd\u3059\u308b<\/a><\/li>\n<li class=\"c-box--toc__list-lv3__item\"><a href=\"#05.2\">3. Web\u30d5\u30a9\u30f3\u30c8\u306e\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\u3092\u6291\u3048\u308b<\/a><\/li>\n<li class=\"c-box--toc__list-lv2__item\"><a href=\"#06\">\u307e\u3068\u3081\uff1aCLS\u3092\u6539\u5584\u3057\u3066\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u5411\u4e0a\u3055\u305b\u3088\u3046<\/a><\/li>\n<\/ul>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"01\">CLS\uff08\u7d2f\u7a4d\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\uff09\u3068\u306f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CLS\uff08Cumulative Layout Shift\uff09\u3068\u306f\u3001\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u4e2d\u306b\u753b\u50cf\u30fb\u5e83\u544a\u30fb\u30dc\u30bf\u30f3\u306a\u3069\u306e\u4f4d\u7f6e\u304c<strong>\u4e88\u671f\u305b\u305a\u306b\u305a\u308c\u308b\u73fe\u8c61\u3092\u6570\u5024\u5316\u3057\u305f\u6307\u6a19<\/strong>\u3067\u3059\u3002CLS\u306e\u6570\u5024\u304c\u4f4e\u3044\u307b\u3069\u30da\u30fc\u30b8\u306e\u8868\u793a\u306f\u5b89\u5b9a\u3057\u3066\u304a\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u30b9\u30c8\u30ec\u30b9\u306a\u304f\u95b2\u89a7\u30fb\u64cd\u4f5c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9006\u306b\u3001CLS\u306e\u6570\u5024\u304c\u9ad8\u3044\u30da\u30fc\u30b8\u306f\u3001\u8aad\u307f\u3065\u3089\u304b\u3063\u305f\u308a\u8aa4\u30bf\u30c3\u30d7\u3092\u8a98\u767a\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u640d\u306a\u3046\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002\u7d50\u679c\u3068\u3057\u3066\u3001\u30da\u30fc\u30b8\u304b\u3089\u306e\u96e2\u8131\u3084\u6ede\u5728\u6642\u9593\u306e\u4f4e\u4e0b\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001SEO\u306e\u89b3\u70b9\u3067\u3082\u6539\u5584\u3057\u3066\u304a\u304d\u305f\u3044\u8981\u7d20\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">CLS\u306f\u30da\u30fc\u30b8\u306e\u300c\u898b\u305f\u76ee\u306e\u30ba\u30ec\u300d\u3092\u6570\u5024\u5316\u3057\u305f\u6307\u6a19\u306e\u3053\u3068<\/h3>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a5f62b2da885&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a5f62b2da885\" class=\"wp-block-image size-large wp-lightbox-container\"><img decoding=\"async\" width=\"800\" height=\"444\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-src=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image8-800x444.png\" alt=\"\" class=\"wp-image-53437 lazyload\" data-srcset=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image8-800x444.png 800w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image8-400x222.png 400w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image8-200x111.png 200w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image8-768x427.png 768w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image8-1536x853.png 1536w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image8.png 1800w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/444;\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">CLS(Cumulative Layout Shift\uff09\u306f\u76f4\u8a33\u3059\u308b\u3068\u300c\u7d2f\u7a4d\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\u300d\u3067\u3059\u3002Web\u30da\u30fc\u30b8\u4e0a\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u8aad\u307f\u8fbc\u3080\u3068\u304d\u3001<mark>\u4e88\u671f\u305b\u305a\u52d5\u304f\u73fe\u8c61\u306e\u6df1\u523b\u5ea6<\/mark>\u3092\u30010\u4ee5\u4e0a\u306e\u6570\u5024\u3067\u8868\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u8a18\u4e8b\u3092\u8aad\u3082\u3046\u3068\u3057\u305f\u3068\u304d\u5e83\u544a\u304c\u7a81\u7136\u8868\u793a\u3055\u308c\u3001\u30c6\u30ad\u30b9\u30c8\u5168\u4f53\u304c\u4e0b\u306b\u62bc\u3057\u51fa\u3055\u308c\u3066\u30bf\u30c3\u30d7\u3057\u305f\u304f\u306a\u3044\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u3066\u3057\u307e\u3063\u305f\u300d\u3068\u3044\u3046\u7d4c\u9a13\u3042\u308a\u307e\u305b\u3093\u304b\uff1f\u3000\u3042\u3042\u3044\u3046\u5834\u9762\u306f\u3001\u826f\u304f\u306a\u3044CLS\u306e\u5178\u578b\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"545\" data-src=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image1-800x545.png\" alt=\"\" class=\"wp-image-53439 lazyload\" data-srcset=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image1-800x545.png 800w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image1-400x273.png 400w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image1-200x136.png 200w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image1-768x523.png 768w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image1-1536x1047.png 1536w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image1.png 1999w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/545;\" \/><figcaption class=\"wp-element-caption\">\u51fa\u5178\uff1a<a href=\"https:\/\/web.dev\/articles\/cls?hl=ja\" target=\"_blank\" rel=\"noopener\" title=\"\"><font color=\"#000000\">web.dev\uff5cCumulative Layout Shift\uff08CLS\uff09<\/font><\/a><\/figcaption><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CLS\u30b9\u30b3\u30a2\u306f\u3001\u305a\u308c\u304c\u767a\u751f\u3057\u305f\u7bc4\u56f2\u00d7\u305a\u308c\u305f\u8ddd\u96e2\u306e\u7a4d\u3092\u3082\u3068\u306b\u7b97\u51fa\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"187\" data-src=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image15-800x187.png\" alt=\"\" class=\"wp-image-53440 lazyload\" data-srcset=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image15-800x187.png 800w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image15-400x93.png 400w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image15-200x47.png 200w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image15-768x179.png 768w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image15-1536x359.png 1536w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image15.png 1999w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/187;\" \/><figcaption class=\"wp-element-caption\">\u51fa\u5178\uff1a<a href=\"https:\/\/web.dev\/articles\/cls?hl=ja#what-is-a-good-cls-score\" target=\"_blank\" rel=\"noopener\" title=\"\"><font color=\"#000000\">web.dev\uff5cCumulative Layout Shift\uff08CLS\uff09<\/font><\/a><\/figcaption><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><mark>Google\u306f0.1\u4ee5\u4e0b\u3092\u826f\u597d\u3068\u5b9a\u7fa9<\/mark>\u3057\u3066\u304a\u308a\u30010.25\u3092\u8d85\u3048\u308b\u30da\u30fc\u30b8\u306f\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u304c\u4f4e\u4e0b\u3057\u3066\u3044\u308b\u3068\u5224\u65ad\u3055\u308c\u307e\u3059\u3002\u81ea\u30b5\u30a4\u30c8\u306eCLS\u30b9\u30b3\u30a2\u78ba\u8a8d\u306f\u3001Google\u793e\u63d0\u4f9b\u306e<a href=\"https:\/\/pagespeed.web.dev\/\" target=\"_blank\" rel=\"noopener\" title=\"\">PageSpeed Insights<\/a>\u3084<a href=\"https:\/\/developer.chrome.com\/docs\/lighthouse\/overview\" target=\"_blank\" rel=\"noopener\" title=\"\">Lighthouse<\/a>\u3067\u3001\u73fe\u72b6\u306e\u8a55\u4fa1\u3092\u898b\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\"><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"default\"><tbody><tr><td class=\"center\" bgcolor=\"#233b6c\" style=\"color:#ffffff;\"><strong>\u30b9\u30b3\u30a2<\/strong><\/td><td class=\"center\" bgcolor=\"#233b6c\" style=\"color:#ffffff;\"><strong>\u8a55\u4fa1<\/strong><\/td><\/tr><\/thead><tbody><tr><td>0.1\u4ee5\u4e0b<\/td><td>\u826f\u597d<\/td><\/tr><tr><td>0.1\u8d85 0.25\u4ee5\u4e0b<\/td><td>\u6539\u5584\u304c\u5fc5\u8981<\/td><\/tr><tr><td>0.25\u8d85<\/td><td>\u4e0d\u826f<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">\u203b\u304f\u308f\u3057\u3044\u8a18\u4e8b\uff1a<br>\u30fb<a href=\"https:\/\/mieru-ca.com\/blog\/page-speed-4\/\">PageSpeed Insights\uff08\u30da\u30fc\u30b8\u30b9\u30d4\u30fc\u30c9\u30a4\u30f3\u30b5\u30a4\u30c8\uff09\u306e\u6d3b\u7528<\/a><br>\u30fb<a href=\"https:\/\/mieru-ca.com\/blog\/seotool-comparison\/#5-6\">Lighthouse\u3068\u306f\uff1f<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">CLS\u306eCore Web Vitals\u306b\u304a\u3051\u308b\u4f4d\u7f6e\u3065\u3051<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Core Web Vitals\u306f\u3001Google\u304cWeb\u30da\u30fc\u30b8\u306e\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u8a55\u4fa1\u3059\u308b\u305f\u3081\u306e3\u3064\u306e\u6307\u6a19\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\u3002\u5404\u6307\u6a19\u304c\u62c5\u3046\u5f79\u5272\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"default\"><tbody><tr><th class=\"center\" bgcolor=\"#233b6c\" style=\"color:#ffffff;\"><strong>\u6307\u6a19<\/strong><\/th><th class=\"center\" bgcolor=\"#233b6c\" style=\"color:#ffffff;\"><strong>\u6e2c\u5b9a\u5bfe\u8c61<\/strong><\/th><th class=\"center\" bgcolor=\"#233b6c\" style=\"color:#ffffff;\"><strong>\u826f\u597d\u3068\u3055\u308c\u308b\u57fa\u6e96<\/strong><\/th><\/tr><\/thead><tbody><tr><td>LCP<\/td><td>\u6700\u5927\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u63cf\u753b\u901f\u5ea6<\/td><td>2.5\u79d2\u4ee5\u5185<\/td><\/tr><tr><td>INP<\/td><td>\u64cd\u4f5c\u3078\u306e\u5fdc\u7b54\u901f\u5ea6<\/td><td>200\u30df\u30ea\u79d2\u4ee5\u5185<\/td><\/tr><tr><td><strong>CLS<\/strong><\/td><td><strong>\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u30ba\u30ec<\/strong><\/td><td><strong>0.1\u4ee5\u4e0b<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">CLS\u306f3\u6307\u6a19\u306e\u4e2d\u3067\u3001<strong>\u8996\u899a\u7684\u5b89\u5b9a\u6027<\/strong>\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002CLS\u3092\u6539\u5584\u3057\u3066\u3082\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u304b\u3089\u52a0\u70b9\u8a55\u4fa1\u304c\u3055\u308c\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3\u306e\u4f4e\u4e0b\u306f<strong>\u30da\u30fc\u30b8\u8a55\u4fa1\u306b\u60aa\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u6050\u308c<\/strong>\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">\u203b\u53c2\u8003\u8a18\u4e8b\uff1a<a href=\"https:\/\/developers.google.com\/search\/blog\/2021\/04\/more-details-page-experience?hl=ja#gradual-rollout\" target=\"_blank\" rel=\"noopener\" title=\"\">Google Search Central\uff5c\u30da\u30fc\u30b8 \u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u306e\u66f4\u65b0\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u306e\u671f\u9593\u3001\u30c4\u30fc\u30eb<\/a><br>\u203b\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/mieru-ca.com\/blog\/core-web-vitals\/\">\u30b3\u30a2\u30a6\u30a7\u30d6\u30d0\u30a4\u30bf\u30eb\u3068\u306f\uff1f\u5404\u6307\u6a19\u3068\u6539\u5584\u65b9\u6cd5\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3010\u52d5\u753b\u3042\u308a\u3011<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"02\">CLS\u306e\u6e2c\u5b9a\u30c4\u30fc\u30eb\u30fb\u6e2c\u5b9a\u65b9\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CLS\u306e\u6539\u5584\u306f\u3001\u73fe\u72b6\u306e\u30b9\u30b3\u30a2\u3092\u628a\u63e1\u3059\u308b\u3053\u3068\u304b\u3089\u59cb\u307e\u308a\u307e\u3059\u3002\u6e2c\u5b9a\u30c4\u30fc\u30eb\u306f\u4e3b\u306b3\u3064\u3042\u308a\u3001\u78ba\u8a8d\u3067\u304d\u308b\u30c7\u30fc\u30bf\u306e\u7a2e\u985e\u3068\u7528\u9014\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"default\"><tbody><tr><th class=\"center\" bgcolor=\"#233b6c\" style=\"color:#ffffff;\"><strong>\u30c4\u30fc\u30eb<\/strong><\/th><th class=\"center\" bgcolor=\"#233b6c\" style=\"color:#ffffff;\"><strong>\u30c7\u30fc\u30bf\u306e\u7a2e\u985e<\/strong><\/th><th class=\"center\" bgcolor=\"#233b6c\" style=\"color:#ffffff;\"><strong>CLS\u3067\u306e\u4e3b\u306a\u7528\u9014<\/strong><\/th><\/tr><\/tbody><tbody><tr><td>1.Google Search Console<br>\uff08\u30b5\u30fc\u30c1\u30b3\u30f3\u30bd\u30fc\u30eb\uff09<\/td><td>\u30d5\u30a3\u30fc\u30eb\u30c9\u30c7\u30fc\u30bf<br>\uff08\u5b9f\u30e6\u30fc\u30b6\u30fc\uff09<\/td><td>Web\u30b5\u30a4\u30c8\u5168\u4f53\u3067<br>\u554f\u984c\u7b87\u6240\u3092\u7279\u5b9a\u3059\u308b\u3068\u304d\u306b\u4f7f\u3046<\/td><\/tr><tr><td>2.PageSpeed Insights<br>\uff08\u30da\u30fc\u30b8\u30b9\u30d4\u30fc\u30c9\u30a4\u30f3\u30b5\u30a4\u30c8\uff09<\/td><td>\u30d5\u30a3\u30fc\u30eb\u30c9\u30c7\u30fc\u30bf\uff0b\u30e9\u30dc\u30c7\u30fc\u30bf<\/td><td>\u500b\u5225URL\u306e\u8a73\u7d30\u78ba\u8a8d\u3068<br>\u6539\u5584\u52b9\u679c\u3092\u691c\u8a3c\u3059\u308b\u3068\u304d\u306b\u4f7f\u3046<\/td><\/tr><tr><td>3.Lighthouse<br>\uff08\u30e9\u30a4\u30c8\u30cf\u30a6\u30b9\uff09<\/td><td>\u30e9\u30dc\u30c7\u30fc\u30bf<\/td><td>Web\u30da\u30fc\u30b8\u672c\u756a\u516c\u958b\u524d\u306e\u3001<br>\u958b\u767a\u4e2d\u306e\u52d5\u4f5c\u78ba\u8a8d\u6642\u306b\u4f7f\u3046<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u308c\u3067\u306f3\u3064\u306e\u30c4\u30fc\u30eb\u3067\u306e\u6e2c\u5b9a\u6cd5\u3092\u9806\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1.Google Search Console\u3067\u6e2c\u5b9a\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/search.google.com\/search-console\/about?hl=ja\" target=\"_blank\" rel=\"noopener\" title=\"\">Google Search Console<\/a>\u306e<mark>\u300c\u30a6\u30a7\u30d6\u306b\u95a2\u3059\u308b\u4e3b\u306a\u6307\u6a19\u300d\u30ec\u30dd\u30fc\u30c8<\/mark>\u3067\u306f\u3001\u5b9f\u969b\u306b\u30da\u30fc\u30b8\u3092\u8a2a\u554f\u3057\u305f\u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30fc\u30bf\u3092\u3082\u3068\u306b\u3001CLS\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u7aef\u672b\u3084\u901a\u4fe1\u74b0\u5883\u306e\u9055\u3044\u3082\u542b\u3081\u3066\u96c6\u8a08\u3055\u308c\u308b\u305f\u3081\u3001\u81ea\u793e\u30b5\u30a4\u30c8\u3067\u3069\u306e\u7a0b\u5ea6\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u304c\u8d77\u304d\u3066\u3044\u308b\u306e\u304b\u3092\u628a\u63e1\u3059\u308b\u969b\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udca1 \u624b\u9806\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5de6\u30e1\u30cb\u30e5\u30fc\u306e\u300c\u30a6\u30a7\u30d6\u306b\u95a2\u3059\u308b\u4e3b\u306a\u6307\u6a19\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u3001\u300c\u30e2\u30d0\u30a4\u30eb\u300d\u307e\u305f\u306f\u300cPC\u300d\u306e\u300c\u30ec\u30dd\u30fc\u30c8\u3092\u958b\u304f\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a5f62b2dbe31&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a5f62b2dbe31\" class=\"wp-block-image size-large wp-lightbox-container\"><img decoding=\"async\" width=\"800\" height=\"446\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-src=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image2-800x446.png\" alt=\"\" class=\"wp-image-53442 lazyload\" data-srcset=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image2-800x446.png 800w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image2-400x223.png 400w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image2-200x112.png 200w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image2-768x428.png 768w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image2-1536x857.png 1536w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image2.png 1999w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/446;\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">CLS\u304c\u300c\u4e0d\u826f\u300d\u307e\u305f\u306f\u300c\u6539\u5584\u304c\u5fc5\u8981\u300d\u306eURL\u3092\u4e00\u89a7\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a5f62b2dc4a1&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a5f62b2dc4a1\" class=\"wp-block-image size-large wp-lightbox-container\"><img decoding=\"async\" width=\"800\" height=\"513\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-src=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image9-800x513.png\" alt=\"\" class=\"wp-image-53443 lazyload\" data-srcset=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image9-800x513.png 800w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image9-400x256.png 400w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image9-200x128.png 200w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image9-768x492.png 768w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image9-1536x984.png 1536w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image9.png 1999w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/513;\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Web\u30b5\u30a4\u30c8\u5168\u4f53\u306e\u30da\u30fc\u30b8\u3092\u307e\u3068\u3081\u3066\u78ba\u8a8d\u3067\u304d\u308b\u305f\u3081\u3001\u3069\u306e\u30da\u30fc\u30b8\u3067CLS\u306b\u95a2\u3059\u308b\u554f\u984c\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u304b\u3092\u628a\u63e1\u3059\u308b\u306e\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002\u4fee\u6b63\u304c\u5b8c\u4e86\u3057\u305f\u3089\u3001Google Search Console\u4e0a\u3067\u691c\u8a3c\u3092\u958b\u59cb\u3057\u3001Google\u306b\u6539\u5584\u72b6\u6cc1\u306e\u78ba\u8a8d\u3092\u4f9d\u983c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.PageSpeed Insights\u3067\u6e2c\u5b9a\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pagespeed.web.dev\/\" target=\"_blank\" rel=\"noopener\" title=\"\">PageSpeed Insights<\/a>\u306fWeb\u30b5\u30a4\u30c8\u306eURL\u3092\u5165\u529b\u3059\u308b\u3060\u3051\u3067CLS\u30b9\u30b3\u30a2\u3092\u78ba\u8a8d\u3067\u304d\u308b\u7121\u6599\u30c4\u30fc\u30eb\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u6790\u7d50\u679c\u306b\u306f\u3001\u300c<mark>\u5b9f\u969b\u306e\u30e6\u30fc\u30b6\u30fc\u306e\u74b0\u5883\u3067\u8a55\u4fa1\u3059\u308b<\/mark>\u300d\uff08<strong>\u30d5\u30a3\u30fc\u30eb\u30c9\u30c7\u30fc\u30bf<\/strong>\uff09\u3068\u300c<mark>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u554f\u984c\u3092\u8a3a\u65ad\u3059\u308b<\/mark>\u300d\uff08<strong>\u30e9\u30dc\u30c7\u30fc\u30bf<\/strong>\uff09\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"default\"><tbody><tr><th class=\"center\" bgcolor=\"#233b6c\" style=\"color:#ffffff;\"><strong>\u30c7\u30fc\u30bf\u306e\u7a2e\u985e<\/strong><\/th><th class=\"center\" bgcolor=\"#233b6c\" style=\"color:#ffffff;\"><strong>\u5185\u5bb9<\/strong><\/th><th class=\"center\" bgcolor=\"#233b6c\" style=\"color:#ffffff;\"><strong>\u4e3b\u306a\u6d3b\u7528\u30b7\u30fc\u30f3<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>\u30d5\u30a3\u30fc\u30eb\u30c9\u30c7\u30fc\u30bf<\/strong><\/td><td>\u5b9f\u30e6\u30fc\u30b6\u30fc\u306e\u904e\u53bb28\u65e5\u9593\u306e\u96c6\u8a08<\/td><td>\u73fe\u72b6\u306e\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u628a\u63e1\u3059\u308b<\/td><\/tr><tr><td><strong>\u30e9\u30dc\u30c7\u30fc\u30bf<\/strong><\/td><td>\u5206\u6790\u5b9f\u884c\u6642\u306e\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3<\/td><td>\u6539\u5584\u65bd\u7b56\u306e\u52b9\u679c\u3092\u5373\u6642\u78ba\u8a8d\u3059\u308b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a5f62b2dcc0e&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a5f62b2dcc0e\" class=\"wp-block-image size-large wp-lightbox-container\"><img decoding=\"async\" width=\"800\" height=\"561\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-src=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image5-800x561.png\" alt=\"\" class=\"wp-image-53444 lazyload\" data-srcset=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image5-800x561.png 800w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image5-400x281.png 400w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image5-200x140.png 200w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image5-768x539.png 768w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image5-1536x1077.png 1536w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image5.png 1999w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/561;\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udca1&nbsp; CLS\u306b\u95a2\u3059\u308b\u4fee\u6b63\u3092\u884c\u3063\u305f\u76f4\u5f8c\u306f\u3001\u307e\u305a\u30e9\u30dc\u30c7\u30fc\u30bf\u3067\u6539\u5584\u306e\u50be\u5411\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u30d5\u30a3\u30fc\u30eb\u30c9\u30c7\u30fc\u30bf\u306f\u904e\u53bb28\u65e5\u9593\u306e\u5b9f\u30e6\u30fc\u30b6\u30fc\u30c7\u30fc\u30bf\u3092\u3082\u3068\u306b\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u6539\u5584\u5185\u5bb9\u304c\u53cd\u6620\u3055\u308c\u308b\u307e\u3067\u306b\u6642\u9593\u304c\u304b\u304b\u308b\u70b9\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\u3001\u30b9\u30b3\u30a2\u306e\u4e0b\u306b\u3042\u308b\u300c\u30a4\u30f3\u30b5\u30a4\u30c8\u300d\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001CLS\u306b\u5f71\u97ff\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u8981\u7d20\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a5f62b2dd2a6&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a5f62b2dd2a6\" class=\"wp-block-image size-large wp-lightbox-container\"><img decoding=\"async\" width=\"800\" height=\"459\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-src=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image3-800x459.png\" alt=\"\" class=\"wp-image-53445 lazyload\" data-srcset=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image3-800x459.png 800w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image3-400x230.png 400w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image3-200x115.png 200w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image3-768x441.png 768w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image3-1536x881.png 1536w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image3.png 1999w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/459;\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3069\u3053\u306e\u753b\u50cf\u30fb\u5e83\u544a\u30fb\u57cb\u3081\u8fbc\u307f\u8981\u7d20\u306a\u3069\u304c\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u3092\u5f15\u304d\u8d77\u3053\u3057\u3066\u3044\u308b\u306e\u304b\u3092\u78ba\u8a8d\u3057\u3001\u6539\u5584\u7b87\u6240\u3092\u7279\u5b9a\u3059\u308b\u969b\u306b\u6d3b\u7528\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3.Lighthouse\u3067\u6e2c\u5b9a\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/developer.chrome.com\/docs\/lighthouse\/overview\" target=\"_blank\" rel=\"noopener\" title=\"\">Lighthouse<\/a>\u306fGoogle Chrome\u306eDevTools\uff08\u958b\u767a\u8005\u30c4\u30fc\u30eb\uff09\u304b\u3089\u5b9f\u884c\u3067\u304d\u308b\u62e1\u5f35\u6a5f\u80fd\u3067\u3059\u3002Web\u30da\u30fc\u30b8\u672c\u756a\u516c\u958b\u524d\u306e\u958b\u767a\u74b0\u5883\u3084\u30ed\u30fc\u30ab\u30eb\u74b0\u5883\u3067CLS\u3092\u8a08\u6e2c\u3059\u308b\u969b\u306b\u4f7f\u308f\u308c\u308b\u3053\u3068\u304c\u591a\u304f\u3001<strong>\u516c\u958b\u524d\u306e\u4e8b\u524d\u78ba\u8a8d<\/strong>\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udca1 Lighthouse\u3067\u306e\u6e2c\u5b9a\u306f\u3001\u62e1\u5f35\u6a5f\u80fd\u3092\u8ffd\u52a0\u3057\u305f\u3089\u6b21\u306e\u624b\u9806\u3067\u78ba\u8a8d\u753b\u9762\u3092\u958b\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Google Chrome\u3067\u3001\u6e2c\u5b9a\u3057\u305f\u3044\u5bfe\u8c61\u30da\u30fc\u30b8\u3092\u958b\u304f<\/li>\n\n\n\n<li>\u300cGoogle Chrome\u306e\u8a2d\u5b9a\uff08\u7e26\u306e3\u3064\u306e\u70b9\uff09\u300d\uff1e\u300c\u305d\u306e\u4ed6\u306e\u30c4\u30fc\u30eb\u300d\uff1e\u300c\u30c7\u30d9\u30ed\u30c3\u30d1\u30fc \u30c4\u30fc\u30eb\u300d\u3092\u9078\u629e<\/li>\n\n\n\n<li>\u300cLighthouse\u300d\u3092\u9078\u629e<\/li>\n\n\n\n<li>\u300c\u30e2\u30d0\u30a4\u30eb\u300d\u307e\u305f\u306f\u300c\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u300d\u3092\u9078\u629e<\/li>\n\n\n\n<li>\u300cAnalyze page load\u300d\u3092\u30af\u30ea\u30c3\u30af<\/li>\n<\/ul>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a5f62b2ddad7&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a5f62b2ddad7\" class=\"wp-block-image size-large wp-lightbox-container\"><img decoding=\"async\" width=\"800\" height=\"430\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-src=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image4-800x430.png\" alt=\"\" class=\"wp-image-53446 lazyload\" data-srcset=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image4-800x430.png 800w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image4-400x215.png 400w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image4-200x108.png 200w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image4-768x413.png 768w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image4-1536x826.png 1536w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image4.png 1999w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/430;\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u6790\u304c\u7d42\u4e86\u3059\u308b\u3068\u3001CLS\u306e\u6570\u5024\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a5f62b2de126&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a5f62b2de126\" class=\"wp-block-image size-large wp-lightbox-container\"><img decoding=\"async\" width=\"800\" height=\"430\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-src=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image11-800x430.png\" alt=\"\" class=\"wp-image-53447 lazyload\" data-srcset=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image11-800x430.png 800w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image11-400x215.png 400w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image11-200x108.png 200w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image11-768x413.png 768w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image11-1536x826.png 1536w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image11.png 1999w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/430;\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Lighthouse\u306e\u8a08\u6e2c\u7d50\u679c\u306f\u3001\u3042\u3089\u304b\u3058\u3081\u6c7a\u3081\u3089\u308c\u305f\u74b0\u5883\u3067\u30da\u30fc\u30b8\u3092\u8aad\u307f\u8fbc\u3093\u3060<mark>\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u5024<\/mark>\u3067\u3059\u3002<mark>\u5b9f\u969b\u306e\u8a2a\u554f\u8005\u306e\u7aef\u672b\u3084\u56de\u7dda\u74b0\u5883\u3067\u306eCLS\u3092\u53cd\u6620\u3057\u305f\u6570\u5024\u3067\u306f\u3042\u308a\u307e\u305b\u3093<\/mark>\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Web\u30da\u30fc\u30b8\u306e\u672c\u756a\u516c\u958b\u5f8c\u306b\u78ba\u8a8d\u3059\u308b\u3068\u304d\u306f\u3001PageSpeed Insights\u3084Search Console\u3067\u5b9f\u30e6\u30fc\u30b6\u30fc\u306e\u8a08\u6e2c\u7d50\u679c\u3082\u3042\u308f\u305b\u3066\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">\u203b\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/mieru-ca.com\/blog\/searchconsole\/\">\u306f\u3058\u3081\u3066\u306e\u300cGoogle\u30b5\u30fc\u30c1\u30b3\u30f3\u30bd\u30fc\u30eb\u300d\u8a2d\u5b9a\u30fb\u4f7f\u3044\u65b9\u3092\u753b\u50cf\u4ed8\u304d\u3067\u89e3\u8aac<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"03\">CLS\u304c\u60aa\u5316\u3059\u308b3\u3064\u306e\u539f\u56e0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Google\u304c\u958b\u767a\u3057\u3066\u3044\u308bweb\u30b5\u30a4\u30c8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5206\u6790\u30a2\u30d7\u30ea\u300c<a href=\"https:\/\/web.dev\/?hl=ja\" target=\"_blank\" rel=\"noopener\" title=\"\">web.dev<\/a>\u300d\u306e\u5206\u985e\u306b\u57fa\u3065\u304f\u3068\u3001CLS\u304c\u60aa\u5316\u3059\u308b\u4e3b\u306a\u539f\u56e0\u306f3\u3064\u306b\u6574\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PageSpeed Insights\u306e\u300c<strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u554f\u984c\u3092\u8a3a\u65ad\u3059\u308b<\/strong>\u300d\u30bb\u30af\u30b7\u30e7\u30f3\u3068\u7167\u3089\u3057\u5408\u308f\u305b\u306a\u304c\u3089\u3001\u81ea\u30b5\u30a4\u30c8\u306b\u8a72\u5f53\u3059\u308b\u539f\u56e0\u3092\u7279\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a5f62b2de829&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a5f62b2de829\" class=\"wp-block-image size-large wp-lightbox-container\"><img decoding=\"async\" width=\"800\" height=\"537\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-src=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image6-800x537.png\" alt=\"\" class=\"wp-image-53449 lazyload\" data-srcset=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image6-800x537.png 800w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image6-400x268.png 400w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image6-200x134.png 200w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image6-768x515.png 768w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image6.png 1091w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/537;\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"03.1\">1. \u753b\u50cf\u30fb\u52d5\u753b\u306e\u30b5\u30a4\u30ba\u672a\u6307\u5b9a<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Web\u30da\u30fc\u30b8\u306e\u753b\u50cf\u3084\u52d5\u753b\u306b\u3001HTML\u306e<strong>width\u5c5e\u6027<\/strong>\uff08\u6a2a\u5e45\u30b5\u30a4\u30ba\uff09\u3068<strong>height\u5c5e\u6027<\/strong>\uff08\u7e26\u5e45\u30b5\u30a4\u30ba\uff09\u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u3068\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u5b8c\u4e86\u307e\u3067\u753b\u50cf\u306e\u5927\u304d\u3055\u3092\u5224\u65ad\u3067\u304d\u307e\u305b\u3093\u3002\u8868\u793a\u7528\u306e\u30b9\u30da\u30fc\u30b9\u3092\u7a7a\u3051\u3089\u308c\u306a\u3044\u307e\u307e\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u7d44\u307e\u308c\u3001\u753b\u50cf\u306e\u5927\u304d\u3055\u304c\u78ba\u5b9a\u3057\u305f\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u30da\u30fc\u30b8\u5168\u4f53\u306e\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u7d44\u307f\u76f4\u3055\u308c\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u5468\u56f2\u306e\u30c6\u30ad\u30b9\u30c8\u3084\u30dc\u30bf\u30f3\u304c\u4e0b\u306b\u62bc\u3057\u51fa\u3055\u308c\u3001\u8a18\u4e8b\u3092\u8aad\u307f\u306a\u304c\u3089\u8981\u7d20\u304c\u7a81\u7136\u305a\u308c\u308b\u4f53\u9a13\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u25bc\u753b\u50cf\u30b5\u30a4\u30ba\u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306b\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u30ba\u30ec\u304c\u8d77\u304d\u308b\u69d8\u5b50<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"444\" data-src=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image10-800x444.png\" alt=\"\" class=\"wp-image-53450 lazyload\" data-srcset=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image10-800x444.png 800w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image10-400x222.png 400w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image10-200x111.png 200w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image10-768x426.png 768w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image10-1536x852.png 1536w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image10.png 1999w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/444;\" \/><figcaption class=\"wp-element-caption\">\u51fa\u5178\uff1a<a href=\"https:\/\/web.dev\/articles\/optimize-cls?hl=ja#images-without-dimensions\" target=\"_blank\" rel=\"noopener\" title=\"\"><font color=\"#000000\">web.dev\uff5cCumulative Layout Shift \u306e\u6700\u9069\u5316<\/font><\/a><\/figcaption><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u25bc\u753b\u50cf\u30b5\u30a4\u30ba\u304c\u6307\u5b9a\u3055\u308c\u3066\u304a\u308a\u3001\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u30ba\u30ec\u304c\u8d77\u304d\u306a\u3044\u69d8\u5b50<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"449\" data-src=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image7-800x449.png\" alt=\"\" class=\"wp-image-53451 lazyload\" data-srcset=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image7-800x449.png 800w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image7-400x225.png 400w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image7-200x112.png 200w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image7-768x431.png 768w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image7-1536x861.png 1536w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image7.png 1999w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/449;\" \/><figcaption class=\"wp-element-caption\">\u51fa\u5178\uff1a<a href=\"https:\/\/web.dev\/articles\/optimize-cls?hl=ja#images-without-dimensions\" target=\"_blank\" rel=\"noopener\" title=\"\">web.dev\uff5cCumulative Layout Shift \u306e\u6700\u9069\u5316<\/a><\/figcaption><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">\u203b\u53c2\u8003\u8a18\u4e8b\uff1a<a href=\"https:\/\/web.dev\/articles\/optimize-cls?hl=ja\" target=\"_blank\" rel=\"noopener\" title=\"\">web.dev\uff5cCumulative Layout Shift \u306e\u6700\u9069\u5316<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"03.2\">2. \u5e83\u544a\u30fb\u57cb\u3081\u8fbc\u307f\u306a\u3069\u306e\u30b9\u30da\u30fc\u30b9\u672a\u78ba\u4fdd<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u753b\u9762\u304c\u305a\u308c\u308b\u539f\u56e0\u306f\u3001\u753b\u50cf\u3060\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002 \u30cd\u30c3\u30c8\u3092\u898b\u3066\u3044\u3066\u3001\u300c\u5e83\u544a\u3084\u30dd\u30c3\u30d7\u30a2\u30c3\u30d7\u3001YouTube\u3001Google\u30de\u30c3\u30d7\u3001SNS\u306e\u6295\u7a3f\u304c\u9045\u308c\u3066\u8868\u793a\u3055\u308c\u3066\u3001\u30da\u30fc\u30b8\u304c\u305a\u308c\u305f\u300d\u3068\u3044\u3046\u7d4c\u9a13\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u57cb\u3081\u8fbc\u307f\u30b3\u30f3\u30c6\u30f3\u30c4\u306f\u3001\u30da\u30fc\u30b8\u304c\u958b\u3044\u305f\u3042\u3068\u306b\u5c11\u3057\u9045\u308c\u3066\u8aad\u307f\u8fbc\u307e\u308c\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u3042\u3089\u304b\u3058\u3081\u300c\u3053\u3053\u306b\u52d5\u753b\u304c\u5165\u308b\u3088\u300d\u3068\u3044\u3046<strong>\u4e88\u7d04\u5e2d\uff08\u30b9\u30da\u30fc\u30b9\uff09\u3092\u78ba\u4fdd\u3057\u3066\u3044\u306a\u3044\u3068\u3001\u4e2d\u8eab\u304c\u8868\u793a\u3055\u308c\u305f\u77ac\u9593\u306b\u4e0b\u306e\u6587\u7ae0\u3092\u30c9\u30b9\u30f3\u3068\u62bc\u3057\u4e0b\u3052\u3066\u3057\u307e\u3046<\/strong>\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305f\u3068\u3048\u3070\u3001\u8a18\u4e8b\u672c\u6587\u306e\u9014\u4e2d\u306b\u5e83\u544a\u304c\u5f8c\u304b\u3089\u8868\u793a\u3055\u308c\u308b\u3068\u3001\u8aad\u3093\u3067\u3044\u305f\u6587\u7ae0\u3084\u30dc\u30bf\u30f3\u306e\u4f4d\u7f6e\u304c\u7a81\u7136\u305a\u308c\u305f\u308a\u3082\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u25bc\u30e6\u30fc\u30b6\u30fc\u306e\u64cd\u4f5c\u306a\u3057\u306b\u3001Web\u30b5\u30a4\u30c8\u4e0a\u90e8\u306b\u30dd\u30c3\u30d7\u30a2\u30c3\u30d7\u304c\u51fa\u73fe\u3057\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u62bc\u3057\u4e0b\u3052\u3089\u308c\u308b\u69d8\u5b50<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"435\" data-src=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image12-800x435.png\" alt=\"\" class=\"wp-image-53452 lazyload\" data-srcset=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image12-800x435.png 800w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image12-400x218.png 400w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image12-200x109.png 200w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image12-768x418.png 768w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image12-1536x836.png 1536w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image12.png 1999w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/435;\" \/><figcaption class=\"wp-element-caption\">\u51fa\u5178\uff1a<a href=\"https:\/\/web.dev\/articles\/optimize-cls?hl=ja#avoid_inserting_new_content_without_a_user_interaction\" target=\"_blank\" rel=\"noopener\" title=\"\"><font color=\"#000000\">web.dev\uff5cCumulative Layout Shift \u306e\u6700\u9069\u5316<\/font><\/a><\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3068\u304f\u306b\u5e83\u544a\u306f\u3001\u914d\u4fe1\u3055\u308c\u308b\u30af\u30ea\u30a8\u30a4\u30c6\u30a3\u30d6\u306b\u3088\u3063\u3066\u30b5\u30a4\u30ba\u304c\u5909\u308f\u308b\u5834\u5408\u304c\u3042\u308a\u3001\u8aad\u307f\u8fbc\u307f\u524d\u306b\u8868\u793a\u30b5\u30a4\u30ba\u3092\u6b63\u78ba\u306b\u4e88\u6e2c\u3057\u306b\u304f\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u5e83\u544a\u67a0\u3084\u57cb\u3081\u8fbc\u307f\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u8a2d\u7f6e\u3059\u308b\u969b\u306f\u3001\u3042\u3089\u304b\u3058\u3081\u8868\u793a\u9818\u57df\u3092\u78ba\u4fdd\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\u3001Cookie\u30d0\u30ca\u30fc\u3084\u304a\u77e5\u3089\u305b\u30dd\u30c3\u30d7\u30a2\u30c3\u30d7\u3092\u30da\u30fc\u30b8\u4e0a\u90e8\u306b\u633f\u5165\u3059\u308b\u5834\u5408\u3082\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c\u306a\u3057\u306b\u5f8c\u304b\u3089\u8868\u793a\u3055\u308c\u308b\u3068\u3001\u65e2\u5b58\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u62bc\u3057\u4e0b\u3052\u3001CLS\u306e\u60aa\u5316\u539f\u56e0\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"03.3\">3. Web\u30d5\u30a9\u30f3\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u9045\u5ef6<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Web\u30d5\u30a9\u30f3\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u304c\u9045\u308c\u308b\u3068\u3001\u6587\u5b57\u306e\u8868\u793a\u304c\u5207\u308a\u66ff\u308f\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u305a\u308c\u3001CLS\u304c\u60aa\u5316\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Web\u30d5\u30a9\u30f3\u30c8\u306f\u5916\u90e8\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u53d6\u5f97\u3055\u308c\u308b\u305f\u3081\u3001\u30da\u30fc\u30b8\u3092\u958b\u3044\u305f\u77ac\u9593\u306b\u5fc5\u305a\u8868\u793a\u3067\u304d\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001\u8aad\u307f\u8fbc\u307f\u304c\u5b8c\u4e86\u3059\u308b\u307e\u3067\u306e\u9593\u306f\u3001\u5225\u306e\u30d5\u30a9\u30f3\u30c8\u3067\u4e00\u6642\u7684\u306b\u8868\u793a\u3055\u308c\u305f\u308a\u3001\u30c6\u30ad\u30b9\u30c8\u304c\u8868\u793a\u3055\u308c\u306a\u3044\u72b6\u614b\u306b\u306a\u3063\u305f\u308a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u3068\u304d\u3001Web\u30d5\u30a9\u30f3\u30c8\u306e\u4ee3\u308f\u308a\u306b\u4e00\u6642\u7684\u306b\u8868\u793a\u3055\u308c\u308b\u30d5\u30a9\u30f3\u30c8\u3092<strong>\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u30d5\u30a9\u30f3\u30c8<\/strong>\u3068\u547c\u3073\u307e\u3059\u3002\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u30d5\u30a9\u30f3\u30c8\u3092\u3042\u3089\u304b\u3058\u3081\u6307\u5b9a\u3057\u3066\u304a\u304f\u3068\u3001\u60f3\u5b9a\u5916\u306e\u30d5\u30a9\u30f3\u30c8\u304c\u8868\u793a\u3055\u308c\u308b\u306e\u3092\u9632\u304e\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">\u25bc\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u30d5\u30a9\u30f3\u30c8\u6307\u5b9a\u306e\u6709\u7121\u306b\u3088\u308b\u8868\u793a\u30a4\u30e1\u30fc\u30b8\u25bc<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a5f62b2df354&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a5f62b2df354\" class=\"wp-block-image size-large wp-lightbox-container\"><img decoding=\"async\" width=\"800\" height=\"596\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-src=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image14-800x596.png\" alt=\"\" class=\"wp-image-53453 lazyload\" data-srcset=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image14-800x596.png 800w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image14-400x298.png 400w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image14-200x149.png 200w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image14-768x573.png 768w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image14-1536x1145.png 1536w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image14.png 1800w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/596;\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Web\u30d5\u30a9\u30f3\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u6642\u306b\u8d77\u3053\u308b\u8868\u793a\u306e\u5909\u5316\u306f\u3001\u4e3b\u306bFOUT\u3068FOIT\u3068\u547c\u3070\u308c\u308b2\u3064\u306e\u6319\u52d5\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"default\"><tbody><tr><td class=\"center\" bgcolor=\"#233b6c\" style=\"color:#ffffff;\"><strong>\u30d1\u30bf\u30fc\u30f3<\/strong><\/td><td class=\"center\" bgcolor=\"#233b6c\" style=\"color:#ffffff;\"><strong>\u6319\u52d5<\/strong><\/td><\/tr><\/tbody><tbody><tr><td>FOUT<\/br>\uff08Flash of Unstyled Text\uff09<\/td><td>Web\u30d5\u30a9\u30f3\u30c8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u307e\u3067\u3001\u6587\u5b57\u3092\u900f\u660e\u306b\u3057\u3066\u96a0\u3059\u6319\u52d5\u306e\u3053\u3068<\/td><\/tr><tr><td>FOIT<\/br>\uff08Flash of Invisible Text\uff09<\/td><td>Web\u30d5\u30a9\u30f3\u30c8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u307e\u3067\u3001<br>\u4ee3\u308f\u308a\u306b\u6a19\u6e96\u306e\u30d5\u30a9\u30f3\u30c8\uff08\u660e\u671d\u3084\u30b4\u30b7\u30c3\u30af\u306a\u3069\uff09\u3092\u8868\u793a\u3057\u3066\u304a\u304f\u6319\u52d5\u306e\u3053\u3068<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3069\u3061\u3089\u306e\u30d1\u30bf\u30fc\u30f3\u3067\u3082\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\u306f\u8d77\u304d\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u30d5\u30a9\u30f3\u30c8\u3092\u6307\u5b9a\u3057\u3066\u304a\u3051\u3070\u3001Web\u30d5\u30a9\u30f3\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u4e2d\u3084\u8aad\u307f\u8fbc\u307f\u306b\u5931\u6557\u3057\u305f\u5834\u5408\u3067\u3082\u4ee3\u66ff\u30d5\u30a9\u30f3\u30c8\u3092\u8868\u793a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306b\u3088\u308a\u3001\u30c6\u30ad\u30b9\u30c8\u304c\u975e\u8868\u793a\u306b\u306a\u308b\u72b6\u614b\u3092\u9632\u3052\u307e\u3059\u3002\u307e\u305f\u3001Web\u30d5\u30a9\u30f3\u30c8\u3068\u6587\u5b57\u5e45\u3084\u5f62\u72b6\u304c\u8fd1\u3044\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u30d5\u30a9\u30f3\u30c8\u3092\u6307\u5b9a\u3057\u3066\u304a\u304f\u3068\u3001\u30d5\u30a9\u30f3\u30c8\u304c\u5207\u308a\u66ff\u308f\u3063\u305f\u3068\u304d\u306e\u898b\u305f\u76ee\u306e\u5dee\u304c\u5c0f\u3055\u304f\u306a\u308a\u3001\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u3082\u6291\u3048\u3089\u308c\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"04\">CLS\u6539\u5584\u524d\u306e\u6ce8\u610f\u70b9\uff5c\u5fc5\u305a\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u53d6\u308d\u3046<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CLS\u306e\u6539\u5584\u3067\u306f\u3001\u4f5c\u696d\u524d\u306bWeb\u30b5\u30a4\u30c8\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u53d6\u5f97\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">HTML\u3084CSS\u3001WordPress\u306e\u30c6\u30fc\u30de\u30d5\u30a1\u30a4\u30eb\u306a\u3069\u3092\u7de8\u96c6\u3059\u308b\u3068\u304d\u3001\u8a18\u8ff0\u30df\u30b9\u3084\u8a2d\u5b9a\u5909\u66f4\u306b\u3088\u3063\u3066\u30da\u30fc\u30b8\u306e\u8868\u793a\u304c\u5d29\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">WordPress\u30b5\u30a4\u30c8\u306e\u5834\u5408\u306f\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u7528\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u5229\u7528\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u30c6\u30b9\u30c8\u74b0\u5883\u3092\u7528\u610f\u3067\u304d\u308b\u5834\u5408\u306f\u3001\u672c\u756a\u74b0\u5883\u3078\u53cd\u6620\u3059\u308b\u524d\u306b\u3001\u4fee\u6b63\u5f8c\u306e\u8868\u793a\u3084\u52d5\u4f5c\u3092\u78ba\u8a8d\u3057\u3066\u304a\u304f\u3068\u5b89\u5fc3\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u53d6\u3089\u305a\u306b\u672c\u756a\u74b0\u5883\u3092\u76f4\u63a5\u7de8\u96c6\u3059\u308b\u3068\u3001\u8868\u793a\u5d29\u308c\u3084\u6a5f\u80fd\u4e0d\u5168\u304c\u8d77\u304d\u305f\u969b\u306b\u5fa9\u65e7\u306b\u6642\u9593\u304c\u304b\u304b\u308b\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002CLS\u6539\u5584\u306b\u7740\u624b\u3059\u308b\u524d\u306b\u3001\u5143\u306e\u72b6\u614b\u3078\u623b\u305b\u308b\u6e96\u5099\u3092\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"05\">CLS\u306e\u539f\u56e0\u5225\u306e\u6539\u5584\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CLS\u3092\u6539\u5584\u3059\u308b\u306b\u306f\u3001\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u304c\u8d77\u304d\u3066\u3044\u308b\u539f\u56e0\u306b\u5408\u308f\u305b\u3066\u5bfe\u7b56\u3059\u308b\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002<br>\u3053\u3053\u3067\u306f\u3001<strong><mark>\u753b\u50cf<\/mark>\u30fb<mark>\u5e83\u544a\u3084\u57cb\u3081\u8fbc\u307f\u30b3\u30f3\u30c6\u30f3\u30c4<\/mark>\u30fb<mark>Web\u30d5\u30a9\u30f3\u30c8<\/mark><\/strong>\u306e3\u3064\u306b\u5206\u3051\u3066\u3001\u5177\u4f53\u7684\u306a\u6539\u5584\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u81ea\u30b5\u30a4\u30c8\u3067CLS\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u539f\u56e0\u3092\u78ba\u8a8d\u3057\u306a\u304c\u3089\u3001\u8a72\u5f53\u3059\u308b\u9805\u76ee\u304b\u3089\u898b\u76f4\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"05.1\">1. \u753b\u50cf\u30fb\u52d5\u753b\u306bwidth\u30fbheight\u5c5e\u6027\u3092\u6307\u5b9a\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u753b\u50cf\u3084\u52d5\u753b\u306b\u3088\u308bCLS\u3092\u9632\u3050\u306b\u306f\u3001HTML\u4e0a\u3067width\u5c5e\u6027\u3068height\u5c5e\u6027\u3092\u6307\u5b9a\u3057\u3001\u8aad\u307f\u8fbc\u307f\u524d\u304b\u3089\u8868\u793a\u9818\u57df\u3092\u78ba\u4fdd\u3059\u308b\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u753b\u50cf\u30b5\u30a4\u30ba\u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u3068\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u753b\u50cf\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u307e\u3067\u5fc5\u8981\u306a\u9ad8\u3055\u3092\u5224\u65ad\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u306e\u7d50\u679c\u3001\u753b\u50cf\u306e\u8868\u793a\u5f8c\u306b\u672c\u6587\u3084\u30dc\u30bf\u30f3\u304c\u4e0b\u3078\u62bc\u3057\u51fa\u3055\u308c\u3001\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u57fa\u672c\u7684\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b<strong>\u753b\u50cf\u30bf\u30b0\u3078width\u3068height\u3092\u6307\u5b9a<\/strong>\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;img src=\"example.jpg\" width=\"800\" height=\"600\" alt=\"\u30b5\u30f3\u30d7\u30eb\u753b\u50cf\"&gt;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">CSS\u3067\u753b\u50cf\u3092\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u306b\u3057\u3066\u3044\u308b\u5834\u5408\u3067\u3082\u3001HTML\u5074\u306ewidth\u3068height\u306f\u7701\u7565\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002\u305f\u3068\u3048\u3070\u3001CSS\u3067width: 100%; height: auto;\u3092\u6307\u5b9a\u3057\u3066\u3044\u3066\u3082\u3001HTML\u306b\u753b\u50cf\u30b5\u30a4\u30ba\u306e\u60c5\u5831\u304c\u306a\u3051\u308c\u3070\u3001\u8aad\u307f\u8fbc\u307f\u524d\u306e\u8868\u793a\u9818\u57df\u3092\u78ba\u4fdd\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">srcset\u3092\u4f7f\u3046\u5834\u5408\u306f\u3001\u5019\u88dc\u3068\u306a\u308b\u753b\u50cf\u306e\u30a2\u30b9\u30da\u30af\u30c8\u6bd4\u3092\u305d\u308d\u3048\u305f\u3046\u3048\u3067\u3001\u57fa\u6e96\u3068\u306a\u308b\u753b\u50cf\u30b5\u30a4\u30ba\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;img\n  width=\"800\"\n  height=\"600\"\n  src=\"example.jpg\"\n  srcset=\"example.jpg 800w, example-1600.jpg 1600w\"\n  alt=\"\u30b5\u30f3\u30d7\u30eb\u753b\u50cf\"\n&gt;\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">PC\u3068\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3067\u7570\u306a\u308b\u753b\u50cf\u3092\u51fa\u3057\u5206\u3051\u308bpicture\u8981\u7d20\u3092\u4f7f\u3046\u5834\u5408\u306f\u3001source\u8981\u7d20\u3068img\u8981\u7d20\u306b\u3082width\u3068height\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;picture&gt;\n  &lt;source media=\"(max-width: 767px)\" srcset=\"image-sp.jpg\" width=\"640\" height=\"360\"&gt;\n  &lt;source media=\"(min-width: 768px)\" srcset=\"image-pc.jpg\" width=\"960\" height=\"540\"&gt;\n  &lt;img src=\"image-pc.jpg\" alt=\"\u30b5\u30f3\u30d7\u30eb\u753b\u50cf\" width=\"960\" height=\"540\"&gt;\n&lt;\/picture&gt;<\/code><\/pre>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">\u203b\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/mieru-ca.com\/blog\/html-tags\/\">HTML\u30bf\u30b0\u3092\u57fa\u790e\u304b\u3089\u304a\u3055\u3089\u3044\u3002SEO\u306b\u5fc5\u9808\u306e\u30bf\u30b0\u3092\u4e8b\u4f8b\u4ed8\u304d\u3067\u7d39\u4ecb<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"05.2\">2. \u5e83\u544a\u30fb\u57cb\u3081\u8fbc\u307f\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u8868\u793a\u9818\u57df\u3092\u4e8b\u524d\u78ba\u4fdd\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5e83\u544a\u3084YouTube\u3001Google\u30de\u30c3\u30d7\u3001SNS\u6295\u7a3f\u306a\u3069\u306e\u57cb\u3081\u8fbc\u307f\u30b3\u30f3\u30c6\u30f3\u30c4\u306f\u3001\u30da\u30fc\u30b8\u8868\u793a\u5f8c\u306b\u8aad\u307f\u8fbc\u307e\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u8868\u793a\u9818\u57df\u3092\u4e8b\u524d\u306b\u78ba\u4fdd\u3057\u3066\u3044\u306a\u3044\u3068\u3001\u8aad\u307f\u8fbc\u307f\u304c\u5b8c\u4e86\u3057\u305f\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u4e0b\u306e\u672c\u6587\u3084\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u4e0b\u3052\u3001CLS\u304c\u60aa\u5316\u3059\u308b\u539f\u56e0\u306b\u306a\u308a\u307e\u3059\u3002\u3000<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u25bc\u5e83\u544a\u306e\u305b\u3044\u3067\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u30ba\u30ec\u308b\u69d8\u5b50<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"405\" data-src=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image16-800x405.png\" alt=\"\" class=\"wp-image-53455 lazyload\" data-srcset=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image16-800x405.png 800w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image16-400x203.png 400w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image16-200x101.png 200w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image16-768x389.png 768w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image16-1536x778.png 1536w, https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/image16.png 1999w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/405;\" \/><figcaption class=\"wp-element-caption\">\u51fa\u5178\uff1a<a href=\"https:\/\/web.dev\/articles\/optimize-cls?hl=ja#reserve-space\" target=\"_blank\" rel=\"noopener\" title=\"\"><font color=\"#000000\">web.dev\uff5cCumulative Layout Shift \u306e\u6700\u9069\u5316<\/font><\/a><\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bfe\u7b56\u3068\u3057\u3066\u306f\u3001CSS\u3067\u3042\u3089\u304b\u3058\u3081\u8868\u793a\u9818\u57df\u3092\u78ba\u4fdd\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u6709\u52b9\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u5e83\u544a\u67a0\u3084\u57cb\u3081\u8fbc\u307f\u30a8\u30ea\u30a2\u306bmin-height\u3092\u6307\u5b9a\u3057\u305f\u308a\u3001\u753b\u50cf\u3084\u52d5\u753b\u306e\u6bd4\u7387\u306b\u5408\u308f\u305b\u3066aspect-ratio\u3092\u8a2d\u5b9a\u3057\u305f\u308a\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u8a18\u3067\u306f\u3001min-height\u3092\u4f7f\u3063\u3066\u3001\u9ad8\u3055250px\u306e\u5e83\u544a\u30b9\u30da\u30fc\u30b9\u3092\u3042\u3089\u304b\u3058\u3081\u78ba\u4fdd\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;div id=\"ad-slot\" style=\"min-height: 250px;\"&gt;&lt;\/div&gt;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5e83\u544a\u306e\u8aad\u307f\u8fbc\u307f\u524d\u304b\u3089\u30b9\u30da\u30fc\u30b9\u3092\u78ba\u4fdd\u3057\u3066\u304a\u304f\u3053\u3068\u3067\u3001\u5e83\u544a\u304c\u5f8c\u304b\u3089\u8868\u793a\u3055\u308c\u305f\u3068\u304d\u306b\u672c\u6587\u3084\u30dc\u30bf\u30f3\u304c\u4e0b\u3078\u62bc\u3057\u51fa\u3055\u308c\u308b\u306e\u3092\u9632\u304e\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5e83\u544a\u67a0\u306e\u5834\u5408\u3001\u914d\u4fe1\u3055\u308c\u308b\u5e83\u544a\u306b\u3088\u3063\u3066\u30b5\u30a4\u30ba\u304c\u5909\u308f\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u904e\u53bb\u306b\u914d\u4fe1\u3055\u308c\u305f\u5e83\u544a\u30b5\u30a4\u30ba\u3084\u60f3\u5b9a\u3055\u308c\u308b\u8868\u793a\u30b5\u30a4\u30ba\u3092\u3082\u3068\u306b\u3001\u3042\u3089\u304b\u3058\u3081\u4f59\u88d5\u3092\u6301\u3063\u305f\u30b9\u30da\u30fc\u30b9\u3092\u7528\u610f\u3057\u3066\u304a\u304f\u3068\u3088\u3044\u3067\u3057\u3087\u3046\u3002\u5e83\u544a\u304c\u8868\u793a\u3055\u308c\u306a\u304b\u3063\u305f\u5834\u5408\u3067\u3082\u3001\u78ba\u4fdd\u3057\u305f\u9818\u57df\u304c\u6025\u306b\u6298\u308a\u305f\u305f\u307e\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\u3001Cookie\u30d0\u30ca\u30fc\u3084\u304a\u77e5\u3089\u305b\u30d0\u30fc\u3092\u30da\u30fc\u30b8\u4e0a\u90e8\u306b\u5f8c\u304b\u3089\u633f\u5165\u3059\u308b\u3068\u3001\u65e2\u5b58\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u62bc\u3057\u4e0b\u3052\u308b\u539f\u56e0\u306b\u306a\u308a\u307e\u3059\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3001\u30da\u30fc\u30b8\u306e\u4e0a\u306b\u91cd\u306d\u3066\u8868\u793a\u3059\u308b\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u5f62\u5f0f\u306b\u3059\u308b\u306a\u3069\u3001\u672c\u6587\u306e\u4f4d\u7f6e\u304c\u52d5\u304b\u306a\u3044\u5b9f\u88c5\u3092\u691c\u8a0e\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"05.3\">3. Web\u30d5\u30a9\u30f3\u30c8\u306e\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\u3092\u6291\u3048\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Web\u30d5\u30a9\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u30d5\u30a9\u30f3\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u30bf\u30a4\u30df\u30f3\u30b0\u306b\u3088\u3063\u3066CLS\u304c\u60aa\u5316\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30da\u30fc\u30b8\u8868\u793a\u6642\u306b\u4e00\u6642\u7684\u306b\u5225\u306e\u30d5\u30a9\u30f3\u30c8\u3067\u6587\u5b57\u304c\u8868\u793a\u3055\u308c\u305f\u308a\u3001\u30c6\u30ad\u30b9\u30c8\u304c\u8868\u793a\u3055\u308c\u306a\u3044\u72b6\u614b\u306b\u306a\u3063\u305f\u308a\u3059\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Web\u30d5\u30a9\u30f3\u30c8\u306b\u3088\u308b\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\u3092\u6291\u3048\u308b\u306b\u306f\u3001font-display\u306e\u6307\u5b9a\u304c\u6709\u52b9\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001font-display: optional;\u3092\u6307\u5b9a\u3059\u308b\u3068\u3001Web\u30d5\u30a9\u30f3\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u304c\u9045\u3044\u5834\u5408\u306f\u4ee3\u66ff\u30d5\u30a9\u30f3\u30c8\u306e\u307e\u307e\u8868\u793a\u3055\u308c\u308b\u305f\u3081\u3001\u30d5\u30a9\u30f3\u30c8\u5207\u308a\u66ff\u3048\u306b\u3088\u308b\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u3092\u6291\u3048\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@font-face {\n  font-family: 'MyFont';\n  src: url('myfont.woff2') format('woff2');\n  font-display: optional;\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\u3001Web\u30d5\u30a9\u30f3\u30c8\u3092\u6307\u5b9a\u3059\u308b\u969b\u306f\u3001\u4ee3\u66ff\u3068\u306a\u308b\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u30d5\u30a9\u30f3\u30c8\u3082\u3042\u308f\u305b\u3066\u8a2d\u5b9a\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>body {\n  font-family: 'MyFont', sans-serif;\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Web\u30d5\u30a9\u30f3\u30c8\u540d\u3060\u3051\u3092\u6307\u5b9a\u3059\u308b\u3068\u3001\u8aad\u307f\u8fbc\u307f\u4e2d\u306b\u60f3\u5b9a\u5916\u306e\u30d5\u30a9\u30f3\u30c8\u304c\u4f7f\u308f\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u30d5\u30a9\u30f3\u30c8\u3092\u6307\u5b9a\u3057\u3066\u304a\u304f\u3053\u3068\u3067\u3001Web\u30d5\u30a9\u30f3\u30c8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u307e\u3067\u306e\u8868\u793a\u3092\u5b89\u5b9a\u3055\u305b\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"06\">\u307e\u3068\u3081\uff1aCLS\u3092\u6539\u5584\u3057\u3066\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u5411\u4e0a\u3055\u305b\u3088\u3046<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CLS\u306f\u3001\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u4e2d\u306b\u767a\u751f\u3059\u308b\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u3092\u6570\u5024\u5316\u3057\u305f\u6307\u6a19\u3067\u3059\u3002\u6570\u5024\u304c\u9ad8\u3044\u30da\u30fc\u30b8\u3067\u306f\u3001\u672c\u6587\u3084\u30dc\u30bf\u30f3\u306e\u4f4d\u7f6e\u304c\u6025\u306b\u52d5\u304d\u3001\u8aad\u307f\u3065\u3089\u3055\u3084\u8aa4\u30bf\u30c3\u30d7\u306b\u3064\u306a\u304c\u308b\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a18\u4e8b\u3067\u89e3\u8aac\u3057\u305fCLS\u6539\u5584\u306e\u30dd\u30a4\u30f3\u30c8\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><span style=\"border-bottom:1px dotted black\">\u753b\u50cf\u30fb\u52d5\u753b\u3078\u306ewidth\/height\u5c5e\u6027\u6307\u5b9a<\/span><\/li>\n\n\n\n<li><span style=\"border-bottom:1px dotted black\">\u5e83\u544a\u30fb\u57cb\u3081\u8fbc\u307f\u30b3\u30f3\u30c6\u30f3\u30c4\u3078\u306eCSS\u306b\u3088\u308b\u8868\u793a\u9818\u57df\u4e8b\u524d\u78ba\u4fdd<\/span><\/li>\n\n\n\n<li><span style=\"border-bottom:1px dotted black\">Web\u30d5\u30a9\u30f3\u30c8\u3078\u306efont-display: optional\u6307\u5b9a\u3068\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u30d5\u30a9\u30f3\u30c8\u306e\u6307\u5b9a<\/span><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u6539\u5584\u65bd\u7b56\u3092\u5b9f\u65bd\u3057\u3066\u3082\u3001\u3059\u3050\u306b\u30b9\u30b3\u30a2\u3078\u53cd\u6620\u3055\u308c\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002PageSpeed Insights\u306e\u30e9\u30dc\u30c7\u30fc\u30bf\u3067\u306f\u6539\u5584\u304c\u78ba\u8a8d\u3067\u304d\u3066\u3082\u3001\u5b9f\u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30fc\u30bf\u3092\u3082\u3068\u306b\u3057\u305f\u30d5\u30a3\u30fc\u30eb\u30c9\u30c7\u30fc\u30bf\u3078\u53cd\u6620\u3055\u308c\u308b\u307e\u3067\u306b\u306f\u6642\u9593\u304c\u304b\u304b\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\u3001CLS\u306f\u8907\u6570\u306e\u539f\u56e0\u304c\u91cd\u306a\u3063\u3066\u60aa\u5316\u3057\u3066\u3044\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002\u753b\u50cf\u3001\u5e83\u544a\u3001\u57cb\u3081\u8fbc\u307f\u30b3\u30f3\u30c6\u30f3\u30c4\u3001Web\u30d5\u30a9\u30f3\u30c8\u306a\u3069\u3001\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u3092\u5f15\u304d\u8d77\u3053\u3057\u3066\u3044\u308b\u8981\u7d20\u3092\u78ba\u8a8d\u3057\u306a\u304c\u3089\u3001\u5f71\u97ff\u306e\u5927\u304d\u3044\u7b87\u6240\u304b\u3089\u898b\u76f4\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u3084\u5e83\u544a\u30bf\u30b0\u3001Web\u30d5\u30a9\u30f3\u30c8\u306a\u3069\u304c\u8907\u96d1\u306b\u7d61\u3080\u30b5\u30a4\u30c8\u3067\u306f\u3001\u539f\u56e0\u306e\u7279\u5b9a\u3084\u6539\u5584\u306e\u512a\u5148\u9806\u4f4d\u3065\u3051\u306b\u8ff7\u3046\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u30df\u30a8\u30eb\u30ab\u3067\u306f\u3001Core Web Vitals\u3092\u542b\u3080\u30b5\u30a4\u30c8\u6539\u5584\u3084SEO\u65bd\u7b56\u306e\u3054\u76f8\u8ac7\u3092\u627f\u3063\u3066\u3044\u307e\u3059\u3002CLS\u306e\u6539\u5584\u65b9\u91dd\u306b\u8ff7\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u305c\u3072\u304a\u6c17\u8efd\u306b\u3054\u76f8\u8ac7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<div class=\"btn--default darken\"><a class=\"c-boxlink\" href=\"https:\/\/mieru-ca.com\/seo-consulting\/\"><\/a><span>\u30df\u30a8\u30eb\u30ab\u306e<br>SEO\u30b3\u30f3\u30b5\u30eb\u306b\u76f8\u8ac7\u3059\u308b<\/span><\/div>\n\n\n\n<fieldset style=\"border: 5px solid #104063; font-size: 100%;padding: 20px;\">\n<legend>\u3000\ud83d\udcf0Faber Comapny\u306eSEO\u30b3\u30f3\u30b5\u30eb\u30c6\u30a3\u30f3\u30b0\u652f\u63f4\u4e8b\u4f8b <\/legend>\n\u25b6\ufe0e\u3000<a href=\"https:\/\/mieru-ca.com\/case\/8190\/\">\u30d0\u30a4\u30af\u738b\uff06\u30ab\u30f3\u30d1\u30cb\u30fc\u3055\u307e\uff5c\u8cb7\u53d6\u95a2\u9023\u306eCV\u524d\u5e74\u6bd4163\uff05\uff01\u5185\u90e8\u8a2d\u8a08\u3068UI\/UX\u306e\u6539\u5584\u4e8b\u4f8b<\/a>\n<br><br>\n\u25b6\ufe0e\u3000<a href=\"https:\/\/mieru-ca.com\/case\/asianway\/\">\u30a2\u30b8\u30a2\u30f3\u30a6\u30a8\u30a4\u3055\u307e\uff5c1\u5e74\u3067\u58f2\u308a\u4e0a\u30523\u500d\uff01\u904e\u53bb\u6700\u9ad8\u76ca\u3092\u53e9\u304d\u51fa\u3057\u305fEC\u30b5\u30a4\u30c8\u306e\u53d6\u308a\u7d44\u307f<\/a>\n<\/fieldset>\n","protected":false},"excerpt":{"rendered":"<p>CLS\uff08\u7d2f\u7a4d\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\uff09\u3068\u306f\u3001\u30da\u30fc\u30b8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u969b\u306b\u8d77\u304d\u308b\u4e88\u671f\u3057\u306a\u3044\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u3092\u6570\u5024\u5316\u3057\u305fCore Web Vitals\u306e\u6307\u6a19\u3067\u3059\u3002CLS\u306e\u6570\u5024\u304c\u9ad8\u3044\u30da\u30fc\u30b8\u306f\u8aad\u307f\u624b\u306b\u3068\u3063\u3066\u64cd\u4f5c\u3057\u3065\u3089\u304f\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u640d\u306d\u3066\u3044\u2026<\/p>\n","protected":false},"author":76,"featured_media":53531,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-53435","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seo"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.9 - aioseo.com -->\n\t<meta name=\"description\" content=\"CLS\uff08\u7d2f\u7a4d\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\uff09\u3068\u306f\u3001\u30da\u30fc\u30b8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u969b\u306b\u8d77\u304d\u308b\u4e88\u671f\u3057\u306a\u3044\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u3092\u6570\u5024\u5316\u3057\u305fCore Web Vitals\u306e\u6307\u6a19\u3002\u672c\u8a18\u4e8b\u3067\u306f\u73fe\u5f79SEO\u30b3\u30f3\u30b5\u30eb\u30bf\u30f3\u30c8\u76e3\u4fee\u306e\u3082\u3068\u3001CLS\u306e\u6e2c\u5b9a\u65b9\u6cd5\u30fb\u60aa\u5316\u306e\u539f\u56e0\u30fb\u539f\u56e0\u5225\u306e\u6539\u5584\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002\" \/>\n\t<meta name=\"robots\" content=\"max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n\t<meta name=\"author\" content=\"\u7af9\u6751 \u6570\u8f1d\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/mieru-ca.com\/blog\/cls\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.9\" \/>\n\t\t<meta property=\"og:locale\" content=\"ja_JP\" \/>\n\t\t<meta property=\"og:site_name\" content=\"\u30df\u30a8\u30eb\u30ab\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30b8\u30e3\u30fc\u30ca\u30eb - web\u30de\u30fc\u30b1\u306e\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u3067\u5b66\u3076\uff01\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"CLS\u3069\u3046\u6539\u5584\u3059\u308b\uff1f \u6e2c\u5b9a\u6cd5\u30fb\u4f4e\u4e0b\u539f\u56e0\u30fb\u5bfe\u7b56\uff08\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306e\u5834\u5408\u3082\u89e3\u8aac\uff09 - \u30df\u30a8\u30eb\u30ab\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30b8\u30e3\u30fc\u30ca\u30eb\" \/>\n\t\t<meta property=\"og:description\" content=\"CLS\uff08\u7d2f\u7a4d\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\uff09\u3068\u306f\u3001\u30da\u30fc\u30b8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u969b\u306b\u8d77\u304d\u308b\u4e88\u671f\u3057\u306a\u3044\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u3092\u6570\u5024\u5316\u3057\u305fCore Web Vitals\u306e\u6307\u6a19\u3002\u672c\u8a18\u4e8b\u3067\u306f\u73fe\u5f79SEO\u30b3\u30f3\u30b5\u30eb\u30bf\u30f3\u30c8\u76e3\u4fee\u306e\u3082\u3068\u3001CLS\u306e\u6e2c\u5b9a\u65b9\u6cd5\u30fb\u60aa\u5316\u306e\u539f\u56e0\u30fb\u539f\u56e0\u5225\u306e\u6539\u5584\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/mieru-ca.com\/blog\/cls\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/CLS-improvement-1-1-scaled.png\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/CLS-improvement-1-1-scaled.png\" \/>\n\t\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t\t<meta property=\"og:image:height\" content=\"1440\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2026-07-16T09:08:16+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2026-07-16T09:29:24+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"CLS\u3069\u3046\u6539\u5584\u3059\u308b\uff1f \u6e2c\u5b9a\u6cd5\u30fb\u4f4e\u4e0b\u539f\u56e0\u30fb\u5bfe\u7b56\uff08\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306e\u5834\u5408\u3082\u89e3\u8aac\uff09 - \u30df\u30a8\u30eb\u30ab\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30b8\u30e3\u30fc\u30ca\u30eb\" \/>\n\t\t<meta name=\"twitter:description\" content=\"CLS\uff08\u7d2f\u7a4d\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\uff09\u3068\u306f\u3001\u30da\u30fc\u30b8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u969b\u306b\u8d77\u304d\u308b\u4e88\u671f\u3057\u306a\u3044\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u3092\u6570\u5024\u5316\u3057\u305fCore Web Vitals\u306e\u6307\u6a19\u3002\u672c\u8a18\u4e8b\u3067\u306f\u73fe\u5f79SEO\u30b3\u30f3\u30b5\u30eb\u30bf\u30f3\u30c8\u76e3\u4fee\u306e\u3082\u3068\u3001CLS\u306e\u6e2c\u5b9a\u65b9\u6cd5\u30fb\u60aa\u5316\u306e\u539f\u56e0\u30fb\u539f\u56e0\u5225\u306e\u6539\u5584\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/CLS-improvement-1-1-scaled.png\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BlogPosting\",\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/cls\\\/#blogposting\",\"name\":\"CLS\\u3069\\u3046\\u6539\\u5584\\u3059\\u308b\\uff1f \\u6e2c\\u5b9a\\u6cd5\\u30fb\\u4f4e\\u4e0b\\u539f\\u56e0\\u30fb\\u5bfe\\u7b56\\uff08\\u30ec\\u30b9\\u30dd\\u30f3\\u30b7\\u30d6\\u306e\\u5834\\u5408\\u3082\\u89e3\\u8aac\\uff09 - \\u30df\\u30a8\\u30eb\\u30ab\\u30de\\u30fc\\u30b1\\u30c6\\u30a3\\u30f3\\u30b0\\u30b8\\u30e3\\u30fc\\u30ca\\u30eb\",\"headline\":\"CLS\\u3069\\u3046\\u6539\\u5584\\u3059\\u308b\\uff1f \\u6e2c\\u5b9a\\u6cd5\\u30fb\\u4f4e\\u4e0b\\u539f\\u56e0\\u30fb\\u5bfe\\u7b56\\uff08\\u30ec\\u30b9\\u30dd\\u30f3\\u30b7\\u30d6\\u306e\\u5834\\u5408\\u3082\\u89e3\\u8aac\\uff09\",\"author\":{\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/author\\\/takemura\\\/#author\"},\"publisher\":{\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/#organization\"},\"image\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/CLS-improvement-1-1-scaled.png\",\"width\":2560,\"height\":1440,\"caption\":\"CLS\\u6539\\u5584\"},\"datePublished\":\"2026-07-16T18:08:16+09:00\",\"dateModified\":\"2026-07-16T18:29:24+09:00\",\"inLanguage\":\"ja\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/cls\\\/#webpage\"},\"isPartOf\":{\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/cls\\\/#webpage\"},\"articleSection\":\"SEO\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/cls\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog#listItem\",\"position\":1,\"name\":\"\\u30db\\u30fc\\u30e0\",\"item\":\"https:\\\/\\\/mieru-ca.com\\\/blog\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/category\\\/seo\\\/#listItem\",\"name\":\"SEO\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/category\\\/seo\\\/#listItem\",\"position\":2,\"name\":\"SEO\",\"item\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/category\\\/seo\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/cls\\\/#listItem\",\"name\":\"CLS\\u3069\\u3046\\u6539\\u5584\\u3059\\u308b\\uff1f \\u6e2c\\u5b9a\\u6cd5\\u30fb\\u4f4e\\u4e0b\\u539f\\u56e0\\u30fb\\u5bfe\\u7b56\\uff08\\u30ec\\u30b9\\u30dd\\u30f3\\u30b7\\u30d6\\u306e\\u5834\\u5408\\u3082\\u89e3\\u8aac\\uff09\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog#listItem\",\"name\":\"\\u30db\\u30fc\\u30e0\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/cls\\\/#listItem\",\"position\":3,\"name\":\"CLS\\u3069\\u3046\\u6539\\u5584\\u3059\\u308b\\uff1f \\u6e2c\\u5b9a\\u6cd5\\u30fb\\u4f4e\\u4e0b\\u539f\\u56e0\\u30fb\\u5bfe\\u7b56\\uff08\\u30ec\\u30b9\\u30dd\\u30f3\\u30b7\\u30d6\\u306e\\u5834\\u5408\\u3082\\u89e3\\u8aac\\uff09\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/category\\\/seo\\\/#listItem\",\"name\":\"SEO\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/#organization\",\"name\":\"\\u30df\\u30a8\\u30eb\\u30ab\\u30de\\u30fc\\u30b1\\u30c6\\u30a3\\u30f3\\u30b0\\u30b8\\u30e3\\u30fc\\u30ca\\u30eb\",\"description\":\"web\\u30de\\u30fc\\u30b1\\u306e\\u57fa\\u790e\\u304b\\u3089\\u5fdc\\u7528\\u307e\\u3067\\u5b66\\u3076\\uff01\",\"url\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/author\\\/takemura\\\/#author\",\"url\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/author\\\/takemura\\\/\",\"name\":\"\\u7af9\\u6751 \\u6570\\u8f1d\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/cls\\\/#authorImage\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/f0f682ce4474d7fa957685dfde56564fa9cc15fef49c1055cfa33771774a19c1?s=96&d=mm&r=g\",\"width\":96,\"height\":96,\"caption\":\"\\u7af9\\u6751 \\u6570\\u8f1d\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/cls\\\/#webpage\",\"url\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/cls\\\/\",\"name\":\"CLS\\u3069\\u3046\\u6539\\u5584\\u3059\\u308b\\uff1f \\u6e2c\\u5b9a\\u6cd5\\u30fb\\u4f4e\\u4e0b\\u539f\\u56e0\\u30fb\\u5bfe\\u7b56\\uff08\\u30ec\\u30b9\\u30dd\\u30f3\\u30b7\\u30d6\\u306e\\u5834\\u5408\\u3082\\u89e3\\u8aac\\uff09 - \\u30df\\u30a8\\u30eb\\u30ab\\u30de\\u30fc\\u30b1\\u30c6\\u30a3\\u30f3\\u30b0\\u30b8\\u30e3\\u30fc\\u30ca\\u30eb\",\"description\":\"CLS\\uff08\\u7d2f\\u7a4d\\u30ec\\u30a4\\u30a2\\u30a6\\u30c8\\u30b7\\u30d5\\u30c8\\uff09\\u3068\\u306f\\u3001\\u30da\\u30fc\\u30b8\\u304c\\u8aad\\u307f\\u8fbc\\u307e\\u308c\\u308b\\u969b\\u306b\\u8d77\\u304d\\u308b\\u4e88\\u671f\\u3057\\u306a\\u3044\\u30ec\\u30a4\\u30a2\\u30a6\\u30c8\\u306e\\u305a\\u308c\\u3092\\u6570\\u5024\\u5316\\u3057\\u305fCore Web Vitals\\u306e\\u6307\\u6a19\\u3002\\u672c\\u8a18\\u4e8b\\u3067\\u306f\\u73fe\\u5f79SEO\\u30b3\\u30f3\\u30b5\\u30eb\\u30bf\\u30f3\\u30c8\\u76e3\\u4fee\\u306e\\u3082\\u3068\\u3001CLS\\u306e\\u6e2c\\u5b9a\\u65b9\\u6cd5\\u30fb\\u60aa\\u5316\\u306e\\u539f\\u56e0\\u30fb\\u539f\\u56e0\\u5225\\u306e\\u6539\\u5584\\u6cd5\\u3092\\u89e3\\u8aac\\u3057\\u307e\\u3059\\u3002\",\"inLanguage\":\"ja\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/cls\\\/#breadcrumblist\"},\"author\":{\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/author\\\/takemura\\\/#author\"},\"creator\":{\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/author\\\/takemura\\\/#author\"},\"image\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/CLS-improvement-1-1-scaled.png\",\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/cls\\\/#mainImage\",\"width\":2560,\"height\":1440,\"caption\":\"CLS\\u6539\\u5584\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/cls\\\/#mainImage\"},\"datePublished\":\"2026-07-16T18:08:16+09:00\",\"dateModified\":\"2026-07-16T18:29:24+09:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/\",\"name\":\"\\u30df\\u30a8\\u30eb\\u30ab\\u30de\\u30fc\\u30b1\\u30c6\\u30a3\\u30f3\\u30b0\\u30b8\\u30e3\\u30fc\\u30ca\\u30eb\",\"description\":\"web\\u30de\\u30fc\\u30b1\\u306e\\u57fa\\u790e\\u304b\\u3089\\u5fdc\\u7528\\u307e\\u3067\\u5b66\\u3076\\uff01\",\"inLanguage\":\"ja\",\"publisher\":{\"@id\":\"https:\\\/\\\/mieru-ca.com\\\/blog\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"CLS\u3069\u3046\u6539\u5584\u3059\u308b\uff1f \u6e2c\u5b9a\u6cd5\u30fb\u4f4e\u4e0b\u539f\u56e0\u30fb\u5bfe\u7b56\uff08\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306e\u5834\u5408\u3082\u89e3\u8aac\uff09 - \u30df\u30a8\u30eb\u30ab\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30b8\u30e3\u30fc\u30ca\u30eb","description":"CLS\uff08\u7d2f\u7a4d\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\uff09\u3068\u306f\u3001\u30da\u30fc\u30b8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u969b\u306b\u8d77\u304d\u308b\u4e88\u671f\u3057\u306a\u3044\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u3092\u6570\u5024\u5316\u3057\u305fCore Web Vitals\u306e\u6307\u6a19\u3002\u672c\u8a18\u4e8b\u3067\u306f\u73fe\u5f79SEO\u30b3\u30f3\u30b5\u30eb\u30bf\u30f3\u30c8\u76e3\u4fee\u306e\u3082\u3068\u3001CLS\u306e\u6e2c\u5b9a\u65b9\u6cd5\u30fb\u60aa\u5316\u306e\u539f\u56e0\u30fb\u539f\u56e0\u5225\u306e\u6539\u5584\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002","canonical_url":"https:\/\/mieru-ca.com\/blog\/cls\/","robots":"max-snippet:-1, max-image-preview:large, max-video-preview:-1","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BlogPosting","@id":"https:\/\/mieru-ca.com\/blog\/cls\/#blogposting","name":"CLS\u3069\u3046\u6539\u5584\u3059\u308b\uff1f \u6e2c\u5b9a\u6cd5\u30fb\u4f4e\u4e0b\u539f\u56e0\u30fb\u5bfe\u7b56\uff08\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306e\u5834\u5408\u3082\u89e3\u8aac\uff09 - \u30df\u30a8\u30eb\u30ab\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30b8\u30e3\u30fc\u30ca\u30eb","headline":"CLS\u3069\u3046\u6539\u5584\u3059\u308b\uff1f \u6e2c\u5b9a\u6cd5\u30fb\u4f4e\u4e0b\u539f\u56e0\u30fb\u5bfe\u7b56\uff08\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306e\u5834\u5408\u3082\u89e3\u8aac\uff09","author":{"@id":"https:\/\/mieru-ca.com\/blog\/author\/takemura\/#author"},"publisher":{"@id":"https:\/\/mieru-ca.com\/blog\/#organization"},"image":{"@type":"ImageObject","url":"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/CLS-improvement-1-1-scaled.png","width":2560,"height":1440,"caption":"CLS\u6539\u5584"},"datePublished":"2026-07-16T18:08:16+09:00","dateModified":"2026-07-16T18:29:24+09:00","inLanguage":"ja","mainEntityOfPage":{"@id":"https:\/\/mieru-ca.com\/blog\/cls\/#webpage"},"isPartOf":{"@id":"https:\/\/mieru-ca.com\/blog\/cls\/#webpage"},"articleSection":"SEO"},{"@type":"BreadcrumbList","@id":"https:\/\/mieru-ca.com\/blog\/cls\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/mieru-ca.com\/blog#listItem","position":1,"name":"\u30db\u30fc\u30e0","item":"https:\/\/mieru-ca.com\/blog","nextItem":{"@type":"ListItem","@id":"https:\/\/mieru-ca.com\/blog\/category\/seo\/#listItem","name":"SEO"}},{"@type":"ListItem","@id":"https:\/\/mieru-ca.com\/blog\/category\/seo\/#listItem","position":2,"name":"SEO","item":"https:\/\/mieru-ca.com\/blog\/category\/seo\/","nextItem":{"@type":"ListItem","@id":"https:\/\/mieru-ca.com\/blog\/cls\/#listItem","name":"CLS\u3069\u3046\u6539\u5584\u3059\u308b\uff1f \u6e2c\u5b9a\u6cd5\u30fb\u4f4e\u4e0b\u539f\u56e0\u30fb\u5bfe\u7b56\uff08\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306e\u5834\u5408\u3082\u89e3\u8aac\uff09"},"previousItem":{"@type":"ListItem","@id":"https:\/\/mieru-ca.com\/blog#listItem","name":"\u30db\u30fc\u30e0"}},{"@type":"ListItem","@id":"https:\/\/mieru-ca.com\/blog\/cls\/#listItem","position":3,"name":"CLS\u3069\u3046\u6539\u5584\u3059\u308b\uff1f \u6e2c\u5b9a\u6cd5\u30fb\u4f4e\u4e0b\u539f\u56e0\u30fb\u5bfe\u7b56\uff08\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306e\u5834\u5408\u3082\u89e3\u8aac\uff09","previousItem":{"@type":"ListItem","@id":"https:\/\/mieru-ca.com\/blog\/category\/seo\/#listItem","name":"SEO"}}]},{"@type":"Organization","@id":"https:\/\/mieru-ca.com\/blog\/#organization","name":"\u30df\u30a8\u30eb\u30ab\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30b8\u30e3\u30fc\u30ca\u30eb","description":"web\u30de\u30fc\u30b1\u306e\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u3067\u5b66\u3076\uff01","url":"https:\/\/mieru-ca.com\/blog\/"},{"@type":"Person","@id":"https:\/\/mieru-ca.com\/blog\/author\/takemura\/#author","url":"https:\/\/mieru-ca.com\/blog\/author\/takemura\/","name":"\u7af9\u6751 \u6570\u8f1d","image":{"@type":"ImageObject","@id":"https:\/\/mieru-ca.com\/blog\/cls\/#authorImage","url":"https:\/\/secure.gravatar.com\/avatar\/f0f682ce4474d7fa957685dfde56564fa9cc15fef49c1055cfa33771774a19c1?s=96&d=mm&r=g","width":96,"height":96,"caption":"\u7af9\u6751 \u6570\u8f1d"}},{"@type":"WebPage","@id":"https:\/\/mieru-ca.com\/blog\/cls\/#webpage","url":"https:\/\/mieru-ca.com\/blog\/cls\/","name":"CLS\u3069\u3046\u6539\u5584\u3059\u308b\uff1f \u6e2c\u5b9a\u6cd5\u30fb\u4f4e\u4e0b\u539f\u56e0\u30fb\u5bfe\u7b56\uff08\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306e\u5834\u5408\u3082\u89e3\u8aac\uff09 - \u30df\u30a8\u30eb\u30ab\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30b8\u30e3\u30fc\u30ca\u30eb","description":"CLS\uff08\u7d2f\u7a4d\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\uff09\u3068\u306f\u3001\u30da\u30fc\u30b8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u969b\u306b\u8d77\u304d\u308b\u4e88\u671f\u3057\u306a\u3044\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u3092\u6570\u5024\u5316\u3057\u305fCore Web Vitals\u306e\u6307\u6a19\u3002\u672c\u8a18\u4e8b\u3067\u306f\u73fe\u5f79SEO\u30b3\u30f3\u30b5\u30eb\u30bf\u30f3\u30c8\u76e3\u4fee\u306e\u3082\u3068\u3001CLS\u306e\u6e2c\u5b9a\u65b9\u6cd5\u30fb\u60aa\u5316\u306e\u539f\u56e0\u30fb\u539f\u56e0\u5225\u306e\u6539\u5584\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002","inLanguage":"ja","isPartOf":{"@id":"https:\/\/mieru-ca.com\/blog\/#website"},"breadcrumb":{"@id":"https:\/\/mieru-ca.com\/blog\/cls\/#breadcrumblist"},"author":{"@id":"https:\/\/mieru-ca.com\/blog\/author\/takemura\/#author"},"creator":{"@id":"https:\/\/mieru-ca.com\/blog\/author\/takemura\/#author"},"image":{"@type":"ImageObject","url":"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/CLS-improvement-1-1-scaled.png","@id":"https:\/\/mieru-ca.com\/blog\/cls\/#mainImage","width":2560,"height":1440,"caption":"CLS\u6539\u5584"},"primaryImageOfPage":{"@id":"https:\/\/mieru-ca.com\/blog\/cls\/#mainImage"},"datePublished":"2026-07-16T18:08:16+09:00","dateModified":"2026-07-16T18:29:24+09:00"},{"@type":"WebSite","@id":"https:\/\/mieru-ca.com\/blog\/#website","url":"https:\/\/mieru-ca.com\/blog\/","name":"\u30df\u30a8\u30eb\u30ab\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30b8\u30e3\u30fc\u30ca\u30eb","description":"web\u30de\u30fc\u30b1\u306e\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u3067\u5b66\u3076\uff01","inLanguage":"ja","publisher":{"@id":"https:\/\/mieru-ca.com\/blog\/#organization"}}]},"og:locale":"ja_JP","og:site_name":"\u30df\u30a8\u30eb\u30ab\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30b8\u30e3\u30fc\u30ca\u30eb - web\u30de\u30fc\u30b1\u306e\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u3067\u5b66\u3076\uff01","og:type":"article","og:title":"CLS\u3069\u3046\u6539\u5584\u3059\u308b\uff1f \u6e2c\u5b9a\u6cd5\u30fb\u4f4e\u4e0b\u539f\u56e0\u30fb\u5bfe\u7b56\uff08\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306e\u5834\u5408\u3082\u89e3\u8aac\uff09 - \u30df\u30a8\u30eb\u30ab\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30b8\u30e3\u30fc\u30ca\u30eb","og:description":"CLS\uff08\u7d2f\u7a4d\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\uff09\u3068\u306f\u3001\u30da\u30fc\u30b8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u969b\u306b\u8d77\u304d\u308b\u4e88\u671f\u3057\u306a\u3044\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u3092\u6570\u5024\u5316\u3057\u305fCore Web Vitals\u306e\u6307\u6a19\u3002\u672c\u8a18\u4e8b\u3067\u306f\u73fe\u5f79SEO\u30b3\u30f3\u30b5\u30eb\u30bf\u30f3\u30c8\u76e3\u4fee\u306e\u3082\u3068\u3001CLS\u306e\u6e2c\u5b9a\u65b9\u6cd5\u30fb\u60aa\u5316\u306e\u539f\u56e0\u30fb\u539f\u56e0\u5225\u306e\u6539\u5584\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002","og:url":"https:\/\/mieru-ca.com\/blog\/cls\/","og:image":"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/CLS-improvement-1-1-scaled.png","og:image:secure_url":"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/CLS-improvement-1-1-scaled.png","og:image:width":2560,"og:image:height":1440,"article:published_time":"2026-07-16T09:08:16+00:00","article:modified_time":"2026-07-16T09:29:24+00:00","twitter:card":"summary_large_image","twitter:title":"CLS\u3069\u3046\u6539\u5584\u3059\u308b\uff1f \u6e2c\u5b9a\u6cd5\u30fb\u4f4e\u4e0b\u539f\u56e0\u30fb\u5bfe\u7b56\uff08\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306e\u5834\u5408\u3082\u89e3\u8aac\uff09 - \u30df\u30a8\u30eb\u30ab\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30b8\u30e3\u30fc\u30ca\u30eb","twitter:description":"CLS\uff08\u7d2f\u7a4d\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\uff09\u3068\u306f\u3001\u30da\u30fc\u30b8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u969b\u306b\u8d77\u304d\u308b\u4e88\u671f\u3057\u306a\u3044\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u3092\u6570\u5024\u5316\u3057\u305fCore Web Vitals\u306e\u6307\u6a19\u3002\u672c\u8a18\u4e8b\u3067\u306f\u73fe\u5f79SEO\u30b3\u30f3\u30b5\u30eb\u30bf\u30f3\u30c8\u76e3\u4fee\u306e\u3082\u3068\u3001CLS\u306e\u6e2c\u5b9a\u65b9\u6cd5\u30fb\u60aa\u5316\u306e\u539f\u56e0\u30fb\u539f\u56e0\u5225\u306e\u6539\u5584\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002","twitter:image":"https:\/\/mieru-ca.com\/blog\/wp-content\/uploads\/2026\/07\/CLS-improvement-1-1-scaled.png"},"aioseo_meta_data":{"post_id":"53435","title":null,"description":"CLS\uff08\u7d2f\u7a4d\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\uff09\u3068\u306f\u3001\u30da\u30fc\u30b8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u969b\u306b\u8d77\u304d\u308b\u4e88\u671f\u3057\u306a\u3044\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u3092\u6570\u5024\u5316\u3057\u305fCore Web Vitals\u306e\u6307\u6a19\u3002\u672c\u8a18\u4e8b\u3067\u306f\u73fe\u5f79SEO\u30b3\u30f3\u30b5\u30eb\u30bf\u30f3\u30c8\u76e3\u4fee\u306e\u3082\u3068\u3001CLS\u306e\u6e2c\u5b9a\u65b9\u6cd5\u30fb\u60aa\u5316\u306e\u539f\u56e0\u30fb\u539f\u56e0\u5225\u306e\u6539\u5584\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002","keywords":null,"keyphrases":{"focus":{"keyphrase":"","score":0,"analysis":{"keyphraseInTitle":{"score":0,"maxScore":9,"error":1}}},"additional":[]},"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":"","og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"BlogPosting","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":"-1","robots_max_videopreview":"-1","robots_max_imagepreview":"large","priority":null,"frequency":"default","local_seo":null,"breadcrumb_settings":null,"limit_modified_date":false,"ai":{"faqs":[],"keyPoints":[],"schemas":[],"titles":[],"descriptions":[],"socialPosts":{"email":{"subject":"","preview":"","content":""},"linkedin":[],"twitter":[],"facebook":[],"instagram":[]}},"created":"2026-07-14 08:32:08","updated":"2026-07-16 10:31:20","seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/mieru-ca.com\/blog\" title=\"\u30db\u30fc\u30e0\">\u30db\u30fc\u30e0<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/mieru-ca.com\/blog\/category\/seo\/\" title=\"SEO\">SEO<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tCLS\u3069\u3046\u6539\u5584\u3059\u308b\uff1f \u6e2c\u5b9a\u6cd5\u30fb\u4f4e\u4e0b\u539f\u56e0\u30fb\u5bfe\u7b56\uff08\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306e\u5834\u5408\u3082\u89e3\u8aac\uff09\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"\u30db\u30fc\u30e0","link":"https:\/\/mieru-ca.com\/blog"},{"label":"SEO","link":"https:\/\/mieru-ca.com\/blog\/category\/seo\/"},{"label":"CLS\u3069\u3046\u6539\u5584\u3059\u308b\uff1f \u6e2c\u5b9a\u6cd5\u30fb\u4f4e\u4e0b\u539f\u56e0\u30fb\u5bfe\u7b56\uff08\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306e\u5834\u5408\u3082\u89e3\u8aac\uff09","link":"https:\/\/mieru-ca.com\/blog\/cls\/"}],"_links":{"self":[{"href":"https:\/\/mieru-ca.com\/blog\/wp-json\/wp\/v2\/posts\/53435","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mieru-ca.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mieru-ca.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mieru-ca.com\/blog\/wp-json\/wp\/v2\/users\/76"}],"replies":[{"embeddable":true,"href":"https:\/\/mieru-ca.com\/blog\/wp-json\/wp\/v2\/comments?post=53435"}],"version-history":[{"count":71,"href":"https:\/\/mieru-ca.com\/blog\/wp-json\/wp\/v2\/posts\/53435\/revisions"}],"predecessor-version":[{"id":53535,"href":"https:\/\/mieru-ca.com\/blog\/wp-json\/wp\/v2\/posts\/53435\/revisions\/53535"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mieru-ca.com\/blog\/wp-json\/wp\/v2\/media\/53531"}],"wp:attachment":[{"href":"https:\/\/mieru-ca.com\/blog\/wp-json\/wp\/v2\/media?parent=53435"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mieru-ca.com\/blog\/wp-json\/wp\/v2\/categories?post=53435"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mieru-ca.com\/blog\/wp-json\/wp\/v2\/tags?post=53435"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}