{"id":47425,"date":"2026-08-14T14:05:32","date_gmt":"2026-08-14T05:05:32","guid":{"rendered":"https:\/\/www.ripla.co.jp\/blog\/?p=47425"},"modified":"2026-09-01T07:12:15","modified_gmt":"2026-08-31T22:12:15","slug":"cumulative-layout-shift","status":"publish","type":"post","link":"https:\/\/www.ripla.co.jp\/blog\/system\/cumulative-layout-shift\/","title":{"rendered":"Cumulative Layout Shift\u3068\u306f\uff1fCLS\u306e\u610f\u5473\u30fb\u6e2c\u5b9a\u65b9\u6cd5\u30fb\u6539\u5584\u7b56\u3092\u89e3\u8aac"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Cumulative Layout Shift\u3068\u306f\u3001\u30da\u30fc\u30b8\u8868\u793a\u4e2d\u306b\u4e88\u671f\u305b\u305a\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u79fb\u52d5\u3057\u305f\u91cf\u3092\u8868\u3059Core Web Vitals\u306e\u6307\u6a19\u3067\u3059\u3002\u8aad\u307f\u8fbc\u307f\u4e2d\u306e\u8996\u899a\u7684\u306a\u5b89\u5b9a\u6027\u3092\u8a55\u4fa1\u3057\u307e\u3059\u3002\u672c\u8a18\u4e8b\u3067\u306f\u3001\u5b9a\u7fa9\u3001\u4ed5\u7d44\u307f\u3001\u4f7f\u3044\u65b9\u3001\u95a2\u9023\u624b\u6cd5\u3068\u306e\u9055\u3044\u3001\u8a55\u4fa1\u3001\u5931\u6557\u3057\u3084\u3059\u3044\u70b9\u3001\u63a1\u7528\u5224\u65ad\u307e\u3067\u3092\u5b9f\u52d9\u306e\u9806\u5e8f\u3067\u6574\u7406\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cumulative Layout Shift\u3092\u5c0e\u5165\u3059\u308b\u3068\u304d\u306f\u3001\u624b\u6cd5\u540d\u3092\u5148\u306b\u6c7a\u3081\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u8ab0\u306e\u3069\u306e\u610f\u601d\u6c7a\u5b9a\u3092\u652f\u63f4\u3059\u308b\u304b\u3092\u56fa\u5b9a\u3057\u307e\u3059\u3002\u5bfe\u8c61\u30c7\u30fc\u30bf\u306e\u5358\u4f4d\u3001\u89b3\u6e2c\u671f\u9593\u3001\u5165\u529b\u3068\u3057\u3066\u5229\u7528\u3067\u304d\u308b\u60c5\u5831\u3001\u7d50\u679c\u3092\u78ba\u8a8d\u3059\u308b\u62c5\u5f53\u8005\u3001\u8a31\u5bb9\u3067\u304d\u308b\u8aa4\u5dee\u3092\u4e00\u6587\u3067\u8a18\u9332\u3057\u3001\u57fa\u6e96\u3068\u306a\u308b\u5358\u7d14\u306a\u65b9\u6cd5\u304b\u3089\u6bd4\u8f03\u3092\u59cb\u3081\u307e\u3059\u3002<\/p>\n\n\n\n<h2 id=\"cumulative-layout-shift-definition\" class=\"wp-block-heading\" style=\"background:#c3d3e1; padding:12px 20px; margin:32px 0 16px; color:#222;\"><strong>Cumulative Layout Shift\u3068\u306f\uff1f\u307e\u305a\u62bc\u3055\u3048\u308b\u5b9a\u7fa9\u3068\u5f79\u5272<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30da\u30fc\u30b8\u8868\u793a\u4e2d\u306b\u4e88\u671f\u305b\u305a\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u79fb\u52d5\u3057\u305f\u91cf\u3092\u8868\u3059Core Web Vitals\u306e\u6307\u6a19\u3067\u3059\u3002\u8aad\u307f\u8fbc\u307f\u4e2d\u306e\u8996\u899a\u7684\u306a\u5b89\u5b9a\u6027\u3092\u8a55\u4fa1\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9a\u7fa9\u3092\u5b9f\u52d9\u3078\u843d\u3068\u3059\u306b\u306f\u3001\u5165\u529b\u3001\u51e6\u7406\u3001\u51fa\u529b\u3001\u4eee\u5b9a\u3092\u5206\u3051\u3066\u66f8\u304d\u307e\u3059\u3002Cumulative Layout Shift\u306e\u7d50\u679c\u304c\u826f\u304f\u898b\u3048\u3066\u3082\u3001\u5165\u529b\u306b\u5c06\u6765\u306e\u60c5\u5831\u304c\u6df7\u3056\u3063\u305f\u308a\u3001\u5bfe\u8c61\u7bc4\u56f2\u304c\u5909\u308f\u3063\u305f\u308a\u3059\u308b\u3068\u3001\u691c\u8a3c\u6642\u3060\u3051\u6709\u5229\u306a\u7d50\u679c\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30c7\u30fc\u30bf\u306e\u767a\u751f\u6642\u70b9\u3068\u8a55\u4fa1\u6642\u70b9\u3092\u305d\u308d\u3048\u3001\u9664\u5916\u6761\u4ef6\u3084\u6b20\u6e2c\u306e\u6271\u3044\u3082\u5148\u306b\u6c7a\u3081\u307e\u3059\u3002<\/p>\n\n\n\n<h2 id=\"cumulative-layout-shift-mechanism\" class=\"wp-block-heading\" style=\"background:#c3d3e1; padding:12px 20px; margin:32px 0 16px; color:#222;\"><strong>Cumulative Layout Shift\u306e\u4ed5\u7d44\u307f\uff5c\u8a08\u7b97\u3068\u5224\u65ad\u306e\u6d41\u308c<\/strong><\/h2>\n\n\n\n<h3 id=\"cumulative-layout-shift-step1\" class=\"wp-block-heading\"><strong>1. \u76ee\u7684\u3068\u30c7\u30fc\u30bf\u306e\u5358\u4f4d\u3092\u5b9a\u7fa9\u3059\u308b<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0d\u5b89\u5b9a\u306a\u8981\u7d20\u306e\u79fb\u52d5\u8ddd\u96e2\u3068\u5f71\u97ff\u7bc4\u56f2\u304b\u3089\u30b7\u30d5\u30c8\u30b9\u30b3\u30a2\u3092\u6c42\u3081\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u30a6\u30a3\u30f3\u30c9\u30a6\u306a\u3069\u306e\u30eb\u30fc\u30eb\u3067\u7d2f\u7a4d\u3057\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c\u306b\u3088\u308b\u79fb\u52d5\u3068\u306f\u533a\u5225\u3057\u307e\u3059\u3002\u6700\u521d\u306b\u76ee\u7684\u5909\u6570\u307e\u305f\u306f\u8a55\u4fa1\u5024\u306e\u610f\u5473\u3001\u89b3\u6e2c\u5358\u4f4d\u3001\u5bfe\u8c61\u671f\u9593\u3001\u5229\u7528\u53ef\u80fd\u306a\u5909\u6570\u3092\u78ba\u5b9a\u3057\u307e\u3059\u3002\u696d\u52d9\u4e0a\u306e\u5bfe\u8c61\u5916\u3092\u5f8c\u304b\u3089\u90fd\u5408\u3088\u304f\u9664\u304b\u305a\u3001\u9664\u5916\u4ef6\u6570\u3068\u7406\u7531\u3092\u30ed\u30b0\u306b\u6b8b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 id=\"cumulative-layout-shift-step2\" class=\"wp-block-heading\"><strong>2. \u5019\u88dc\u8a2d\u5b9a\u3092\u5b66\u7fd2\u30fb\u63a8\u5b9a\u3059\u308b<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5019\u88dc\u3068\u306a\u308b\u8a2d\u5b9a\u3084\u30e2\u30c7\u30eb\u3092\u8907\u6570\u7528\u610f\u3057\u3001\u8a13\u7df4\u30fb\u691c\u8a3c\u30fb\u6700\u7d42\u8a55\u4fa1\u306e\u5f79\u5272\u3092\u5206\u3051\u307e\u3059\u3002\u524d\u51e6\u7406\u3084\u5909\u6570\u9078\u629e\u3092\u5168\u30c7\u30fc\u30bf\u3078\u5148\u306b\u9069\u7528\u305b\u305a\u3001\u518d\u73fe\u3067\u304d\u308b\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u3068\u3057\u3066\u4fdd\u5b58\u3057\u307e\u3059\u3002\u4e71\u6570\u3001\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3001\u8a2d\u5b9a\u5024\u3001\u5165\u529b\u30c7\u30fc\u30bf\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u3092\u8a18\u9332\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 id=\"cumulative-layout-shift-step3\" class=\"wp-block-heading\"><strong>3. \u7d50\u679c\u3092\u610f\u601d\u6c7a\u5b9a\u3067\u304d\u308b\u5f62\u3078\u5909\u63db\u3059\u308b<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u51fa\u529b\u306f\u30b9\u30b3\u30a2\u3084\u4fc2\u6570\u3060\u3051\u3067\u306a\u304f\u3001\u5229\u7528\u8005\u304c\u5224\u65ad\u3067\u304d\u308b\u5358\u4f4d\u3078\u623b\u3057\u307e\u3059\u3002CLS\u3001\u79fb\u52d5\u8981\u7d20\u3001\u5f71\u97ff\u7bc4\u56f2\u3001\u753b\u50cf\u5bf8\u6cd5\u6307\u5b9a\u3001\u5e83\u544a\u67a0\u3001\u30d5\u30a9\u30f3\u30c8\u4ea4\u63db\u300175\u30d1\u30fc\u30bb\u30f3\u30bf\u30a4\u30eb\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u70b9\u63a8\u5b9a\u3060\u3051\u3092\u793a\u3055\u305a\u3001\u4e0d\u78ba\u5b9f\u6027\u3001\u5bfe\u8c61\u5916\u306e\u6761\u4ef6\u3001\u5224\u65ad\u3092\u8986\u3059\u53cd\u8a3c\u3082\u4f75\u8a18\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 id=\"cumulative-layout-shift-use\" class=\"wp-block-heading\" style=\"background:#c3d3e1; padding:12px 20px; margin:32px 0 16px; color:#222;\"><strong>Cumulative Layout Shift\u306e\u4f7f\u3044\u65b9\uff5c\u5b9f\u52d9\u3067\u306e\u9069\u7528\u5834\u9762<\/strong><\/h2>\n\n\n\n<h3 id=\"cumulative-layout-shift-use1\" class=\"wp-block-heading\"><strong>\u5c0f\u3055\u306a\u691c\u8a3c\u304b\u3089\u59cb\u3081\u308b<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u753b\u50cf\u30fb\u5e83\u544a\u30fb\u30d5\u30a9\u30f3\u30c8\u30fb\u52d5\u7684\u633f\u5165\u3067\u30dc\u30bf\u30f3\u3084\u6587\u7ae0\u304c\u52d5\u304f\u554f\u984c\u3092\u7279\u5b9a\u3057\u3001\u4e88\u7d04\u9818\u57df\u3084\u66f4\u65b0\u65b9\u6cd5\u3092\u6539\u5584\u3059\u308b\u5834\u5408\u306b\u4f7f\u3044\u307e\u3059\u3002\u5b9f\u30e6\u30fc\u30b6\u30fc\u8a08\u6e2c\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u6700\u521d\u306f\u4ee3\u8868\u7684\u306a\u30c7\u30fc\u30bf\u3068\u660e\u78ba\u306a\u6210\u529f\u6761\u4ef6\u306b\u7d5e\u308a\u3001\u57fa\u6e96\u624b\u6cd5\u3068\u306e\u5dee\u5206\u3092\u6e2c\u308a\u307e\u3059\u3002\u77ed\u671f\u306e\u6307\u6a19\u304c\u6539\u5584\u3057\u3066\u3082\u3001\u904b\u7528\u8ca0\u8377\u3001\u8aac\u660e\u53ef\u80fd\u6027\u3001\u66f4\u65b0\u983b\u5ea6\u3001\u4f8b\u5916\u51e6\u7406\u307e\u3067\u542b\u3081\u3066\u63a1\u7528\u53ef\u5426\u3092\u5224\u65ad\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 id=\"cumulative-layout-shift-use2\" class=\"wp-block-heading\"><strong>\u8a55\u4fa1\u671f\u9593\u3068\u5229\u7528\u8005\u3092\u305d\u308d\u3048\u308b<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u672a\u6765\u306e\u60c5\u5831\u3092\u4f7f\u3048\u306a\u3044\u696d\u52d9\u3067\u306f\u6642\u7cfb\u5217\u5206\u5272\u3001\u540c\u3058\u9867\u5ba2\u3084\u6848\u4ef6\u304c\u7e70\u308a\u8fd4\u3057\u73fe\u308c\u308b\u5834\u5408\u306f\u30b0\u30eb\u30fc\u30d7\u5358\u4f4d\u306e\u5206\u5272\u3092\u63a1\u7528\u3057\u307e\u3059\u3002\u30ec\u30dd\u30fc\u30c8\u3092\u8aad\u3080\u4eba\u304c\u7d50\u679c\u306e\u610f\u5473\u3092\u8aa4\u89e3\u3057\u306a\u3044\u3088\u3046\u3001\u6307\u6a19\u306e\u5358\u4f4d\u3001\u5206\u6bcd\u3001\u5bfe\u8c61\u7bc4\u56f2\u3001\u4fe1\u983c\u533a\u9593\u3092\u8a18\u8f09\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 id=\"cumulative-layout-shift-use3\" class=\"wp-block-heading\"><strong>\u672c\u756a\u904b\u7528\u3078\u79fb\u3059<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u756a\u3067\u306f\u5165\u529b\u306e\u6b20\u640d\u7387\u3084\u5206\u5e03\u3001\u7d50\u679c\u306e\u54c1\u8cea\u3001\u51e6\u7406\u6642\u9593\u3001\u30a8\u30e9\u30fc\u7387\u3092\u76e3\u8996\u3057\u307e\u3059\u3002\u60aa\u5316\u3057\u305f\u3068\u304d\u306e\u518d\u5b66\u7fd2\u30fb\u518d\u63a8\u5b9a\u6761\u4ef6\u3001\u627f\u8a8d\u8005\u3001\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u5148\u3092\u6c7a\u3081\u3001\u691c\u8a3c\u6642\u3068\u540c\u3058\u96c6\u8a08\u304c\u3067\u304d\u308b\u30ed\u30b0\u3092\u6b8b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 id=\"cumulative-layout-shift-comparison\" class=\"wp-block-heading\" style=\"background:#c3d3e1; padding:12px 20px; margin:32px 0 16px; color:#222;\"><strong>Cumulative Layout Shift\u3068\u95a2\u9023\u624b\u6cd5\u306e\u9055\u3044<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CLS\u306f\u8996\u899a\u7684\u306a\u4f4d\u7f6e\u5909\u5316\u3001LCP\u306f\u4e3b\u8981\u8981\u7d20\u306e\u8868\u793a\u6642\u523b\u3001INP\u306f\u64cd\u4f5c\u3078\u306e\u5fdc\u7b54\u6027\u3067\u3059\u3002\u901f\u5ea6\u304c\u901f\u304f\u3066\u3082\u79fb\u52d5\u304c\u5927\u304d\u3044\u30da\u30fc\u30b8\u306f\u4f7f\u3044\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6bd4\u8f03\u3059\u308b\u3068\u304d\u306f\u3001\u540c\u3058\u30c7\u30fc\u30bf\u5206\u5272\u3001\u76ee\u7684\u3001\u8a55\u4fa1\u671f\u9593\u3001\u524d\u51e6\u7406\u3001\u8a08\u7b97\u4e88\u7b97\u3092\u305d\u308d\u3048\u307e\u3059\u3002\u624b\u6cd5\u3054\u3068\u306b\u7b54\u3048\u3089\u308c\u308b\u554f\u3044\u304c\u9055\u3046\u5834\u5408\u3001\u5358\u7d14\u306a\u9806\u4f4d\u4ed8\u3051\u3092\u907f\u3051\u3001\u7cbe\u5ea6\u3001\u5b89\u5b9a\u6027\u3001\u8aac\u660e\u3001\u8cbb\u7528\u3001\u4fdd\u5b88\u6027\u3092\u4e26\u3079\u305f\u5224\u65ad\u8868\u3092\u4f5c\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 id=\"cumulative-layout-shift-evaluation\" class=\"wp-block-heading\" style=\"background:#c3d3e1; padding:12px 20px; margin:32px 0 16px; color:#222;\"><strong>Cumulative Layout Shift\u306e\u8a55\u4fa1\u65b9\u6cd5\uff5c\u6570\u5b57\u3060\u3051\u3067\u5224\u65ad\u3057\u306a\u3044<\/strong><\/h2>\n\n\n\n<h3 id=\"cumulative-layout-shift-metrics\" class=\"wp-block-heading\"><strong>\u4e3b\u8981\u6307\u6a19\u3068\u4e0d\u78ba\u5b9f\u6027<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">CLS\u3001\u79fb\u52d5\u8981\u7d20\u3001\u5f71\u97ff\u7bc4\u56f2\u3001\u753b\u50cf\u5bf8\u6cd5\u6307\u5b9a\u3001\u5e83\u544a\u67a0\u3001\u30d5\u30a9\u30f3\u30c8\u4ea4\u63db\u300175\u30d1\u30fc\u30bb\u30f3\u30bf\u30a4\u30eb\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 id=\"cumulative-layout-shift-diagnostics\" class=\"wp-block-heading\"><strong>\u8a3a\u65ad\u3068\u518d\u73fe\u6027<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5e73\u5747\u5024\u3060\u3051\u3067\u306a\u304f\u3001\u671f\u9593\u5225\u3001\u30b0\u30eb\u30fc\u30d7\u5225\u3001\u6975\u7aef\u306a\u30b1\u30fc\u30b9\u5225\u306e\u7d50\u679c\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u8a2d\u5b9a\u3092\u5909\u3048\u305f\u611f\u5ea6\u5206\u6790\u3001\u5225\u30c7\u30fc\u30bf\u3067\u306e\u78ba\u8a8d\u3001\u8907\u6570\u30b7\u30fc\u30c9\u3067\u306e\u518d\u5b9f\u9a13\u3092\u884c\u3044\u3001\u7d50\u8ad6\u304c\u4e00\u3064\u306e\u5076\u7136\u306b\u4f9d\u5b58\u3057\u3066\u3044\u306a\u3044\u304b\u3092\u70b9\u691c\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 id=\"cumulative-layout-shift-pitfalls\" class=\"wp-block-heading\" style=\"background:#c3d3e1; padding:12px 20px; margin:32px 0 16px; color:#222;\"><strong>Cumulative Layout Shift\u3067\u8d77\u304d\u3084\u3059\u3044\u5931\u6557\u3068\u5bfe\u7b56<\/strong><\/h2>\n\n\n\n<h3 id=\"cumulative-layout-shift-pitfall1\" class=\"wp-block-heading\"><strong>\u30c7\u30fc\u30bf\u3068\u524d\u51e6\u7406\u306e\u554f\u984c<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5168\u30c7\u30fc\u30bf\u3067\u96c6\u8a08\u30fb\u6a19\u6e96\u5316\u30fb\u88dc\u5b8c\u3057\u3066\u304b\u3089\u5206\u5272\u3059\u308b\u3001\u672a\u6765\u306e\u5024\u3092\u5165\u529b\u306b\u542b\u3081\u308b\u3001\u8a55\u4fa1\u5bfe\u8c61\u3092\u7d50\u679c\u3092\u898b\u3066\u9078\u3076\u3001\u3068\u3044\u3063\u305f\u64cd\u4f5c\u306f\u6027\u80fd\u3084\u63a8\u5b9a\u3092\u697d\u89b3\u7684\u306b\u3057\u307e\u3059\u3002\u524d\u51e6\u7406\u3092\u5b66\u7fd2\u5074\u3078\u9650\u5b9a\u3057\u3001\u51e6\u7406\u524d\u5f8c\u306e\u4ef6\u6570\u3068\u5024\u57df\u3092\u76e3\u67fb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 id=\"cumulative-layout-shift-pitfall2\" class=\"wp-block-heading\"><strong>\u6307\u6a19\u3068\u554f\u3044\u3092\u6df7\u540c\u3059\u308b<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u753b\u50cf\u5bf8\u6cd5\u3092\u4e88\u7d04\u3057\u306a\u3044\u3001\u5e83\u544a\u67a0\u306e\u5909\u52d5\u3001\u4e0a\u90e8\u3078\u306e\u633f\u5165\u3001\u30d5\u30a9\u30f3\u30c8\u5207\u66ff\u3001\u5b9f\u9a13\u5ba4\u30c7\u30fc\u30bf\u3060\u3051\u3067\u5224\u65ad\u3059\u308b\u554f\u984c\u304c\u3042\u308a\u307e\u3059\u3002\u6307\u6a19\u306e\u6539\u5584\u304c\u696d\u52d9\u6210\u679c\u3084\u56e0\u679c\u52b9\u679c\u3092\u610f\u5473\u3059\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u5206\u6790\u304c\u7b54\u3048\u3066\u3044\u308b\u554f\u3044\u3068\u610f\u601d\u6c7a\u5b9a\u8005\u306e\u554f\u3044\u3092\u4e26\u3079\u3001\u8db3\u308a\u306a\u3044\u4eee\u5b9a\u3084\u30c7\u30fc\u30bf\u3092\u660e\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 id=\"cumulative-layout-shift-pitfall3\" class=\"wp-block-heading\"><strong>\u904b\u7528\u6761\u4ef6\u306e\u5909\u5316\u3092\u7121\u8996\u3059\u308b<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5236\u5ea6\u3001\u4fa1\u683c\u3001\u9867\u5ba2\u69cb\u6210\u3001\u5b63\u7bc0\u6027\u3001\u8a08\u6e2c\u65b9\u6cd5\u306f\u5909\u5316\u3057\u307e\u3059\u3002\u5165\u529b\u5206\u5e03\u3001\u6b20\u6e2c\u3001\u7d50\u679c\u306e\u54c1\u8cea\u3001\u4e3b\u8981\u30b0\u30eb\u30fc\u30d7\u306e\u5dee\u3092\u76e3\u8996\u3057\u3001\u518d\u8a55\u4fa1\u306e\u30c8\u30ea\u30ac\u30fc\u3092\u4e8b\u524d\u306b\u6c7a\u3081\u307e\u3059\u3002<\/p>\n\n\n\n<h2 id=\"cumulative-layout-shift-decision\" class=\"wp-block-heading\" style=\"background:#c3d3e1; padding:12px 20px; margin:32px 0 16px; color:#222;\"><strong>Cumulative Layout Shift\u3092\u63a1\u7528\u3059\u308b\u5224\u65ad\u57fa\u6e96<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u8aad\u307f\u9593\u9055\u3044\u3084\u8aa4\u30af\u30ea\u30c3\u30af\u3092\u9632\u304e\u305f\u3044\u30da\u30fc\u30b8\u3067\u306f\u3001\u30ec\u30a4\u30a2\u30a6\u30c8\u5b89\u5b9a\u6027\u3092\u54c1\u8cea\u8981\u4ef6\u306b\u3057\u307e\u3059\u3002\u4e3b\u8981\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u7d99\u7d9a\u76e3\u8996\u3057\u307e\u3059\u3002\u63a1\u7528\u3057\u306a\u3044\u5834\u5408\u3082\u3001\u57fa\u6e96\u624b\u6cd5\u3001\u898b\u9001\u3063\u305f\u7406\u7531\u3001\u6b21\u306b\u5fc5\u8981\u306a\u30c7\u30fc\u30bf\u3092\u8a18\u9332\u3059\u308b\u3068\u3001\u5c06\u6765\u306e\u518d\u691c\u8a0e\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8aac\u660e\u8cc7\u6599\u3067\u306f\u3001\u6570\u5f0f\u3084\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3060\u3051\u3067\u306a\u304f\u3001\u4f55\u3092\u4eee\u5b9a\u3057\u3001\u3069\u3053\u304b\u3089\u5148\u306f\u5206\u304b\u3089\u306a\u3044\u304b\u3092\u793a\u3057\u307e\u3059\u3002\u7d50\u679c\u3092\u5229\u7528\u3059\u308b\u4eba\u304c\u53cd\u8a3c\u6761\u4ef6\u3084\u9069\u7528\u7bc4\u56f2\u3092\u78ba\u8a8d\u3067\u304d\u308b\u3088\u3046\u3001\u6210\u529f\u4f8b\u3060\u3051\u3067\u306a\u304f\u5931\u6557\u4f8b\u3082\u6b8b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 id=\"cumulative-layout-shift-summary\" class=\"wp-block-heading\" style=\"background:#c3d3e1; padding:12px 20px; margin:32px 0 16px; color:#222;\"><strong>Cumulative Layout Shift\u307e\u3068\u3081\uff5c\u76ee\u7684\u30fb\u524d\u63d0\u30fb\u8a55\u4fa1\u3092\u305d\u308d\u3048\u308b<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cumulative Layout Shift\u306f\u3001\u30da\u30fc\u30b8\u8868\u793a\u4e2d\u306b\u4e88\u671f\u305b\u305a\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u79fb\u52d5\u3057\u305f\u91cf\u3092\u8868\u3059Core Web Vitals\u306e\u6307\u6a19\u3067\u3059\u3002\u8aad\u307f\u8fbc\u307f\u4e2d\u306e\u8996\u899a\u7684\u306a\u5b89\u5b9a\u6027\u3092\u8a55\u4fa1\u3057\u307e\u3059\u3002\u4fa1\u5024\u3092\u51fa\u3059\u306b\u306f\u3001\u5bfe\u8c61\u3001\u6642\u9593\u3001\u5165\u529b\u3001\u51fa\u529b\u3001\u4eee\u5b9a\u3092\u5b9a\u7fa9\u3057\u3001\u57fa\u6e96\u624b\u6cd5\u3068\u540c\u3058\u6761\u4ef6\u3067\u8a55\u4fa1\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c0f\u3055\u304f\u691c\u8a3c\u3057\u3066\u304b\u3089\u9069\u7528\u7bc4\u56f2\u3092\u5e83\u3052\u3001\u8a2d\u5b9a\u30fb\u30c7\u30fc\u30bf\u30fb\u8a55\u4fa1\u7d50\u679c\u3092\u518d\u73fe\u3067\u304d\u308b\u5f62\u3067\u4fdd\u5b58\u3057\u307e\u3059\u3002\u7cbe\u5ea6\u3084\u6709\u610f\u6027\u3060\u3051\u3067\u306a\u304f\u3001\u8aa4\u308a\u306e\u30b3\u30b9\u30c8\u3001\u8aac\u660e\u53ef\u80fd\u6027\u3001\u904b\u7528\u8ca0\u8377\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308b\u4eba\u3078\u306e\u516c\u5e73\u6027\u3082\u542b\u3081\u3066\u5224\u65ad\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 id=\"cumulative-layout-shift-faq\" class=\"wp-block-heading\" style=\"background:#c3d3e1; padding:12px 20px; margin:32px 0 16px; color:#222;\"><strong>\u3088\u304f\u3042\u308b\u8cea\u554f\uff08FAQ\uff09<\/strong><\/h2>\n\n\n\n<h3 id=\"cumulative-layout-shift-faq-1\" class=\"wp-block-heading\"><strong>Q. Cumulative Layout Shift\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30da\u30fc\u30b8\u8868\u793a\u4e2d\u306b\u4e88\u671f\u305b\u305a\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u79fb\u52d5\u3057\u305f\u91cf\u3092\u8868\u3059Core Web Vitals\u306e\u6307\u6a19\u3067\u3059\u3002\u8aad\u307f\u8fbc\u307f\u4e2d\u306e\u8996\u899a\u7684\u306a\u5b89\u5b9a\u6027\u3092\u8a55\u4fa1\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 id=\"cumulative-layout-shift-faq-2\" class=\"wp-block-heading\"><strong>Q. Cumulative Layout Shift\u306f\u3069\u306e\u3088\u3046\u306a\u5834\u9762\u3067\u4f7f\u3044\u307e\u3059\u304b\uff1f<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8868\u793a\u4e2d\u306b\u8981\u7d20\u304c\u52d5\u304f\u554f\u984c\u3092\u6e2c\u5b9a\u3057\u3001\u753b\u50cf\u3084\u5e83\u544a\u306a\u3069\u306e\u30ec\u30a4\u30a2\u30a6\u30c8\u5b89\u5b9a\u6027\u3092\u6539\u5584\u3059\u308b\u3068\u304d\u306b\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 id=\"cumulative-layout-shift-faq-3\" class=\"wp-block-heading\"><strong>Q. Cumulative Layout Shift\u3092\u4f7f\u3046\u3068\u304d\u306e\u8a55\u4fa1\u6307\u6a19\u306f\u4f55\u3067\u3059\u304b\uff1f<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">CLS\u3001\u79fb\u52d5\u8981\u7d20\u3001\u5f71\u97ff\u7bc4\u56f2\u3001\u753b\u50cf\u3001\u5e83\u544a\u3001\u30d5\u30a9\u30f3\u30c8\u300175\u30d1\u30fc\u30bb\u30f3\u30bf\u30a4\u30eb\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 id=\"cumulative-layout-shift-faq-4\" class=\"wp-block-heading\"><strong>Q. Cumulative Layout Shift\u3067\u8d77\u304d\u3084\u3059\u3044\u5931\u6557\u306f\u4f55\u3067\u3059\u304b\uff1f<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf8\u6cd5\u672a\u4e88\u7d04\u3001\u5e83\u544a\u5909\u52d5\u3001\u4e0a\u90e8\u633f\u5165\u3001\u30d5\u30a9\u30f3\u30c8\u5207\u66ff\u3001\u5b9f\u30c7\u30fc\u30bf\u4e0d\u8db3\u306b\u6ce8\u610f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 id=\"cumulative-layout-shift-faq-5\" class=\"wp-block-heading\"><strong>Q. Cumulative Layout Shift\u3068\u4f3c\u305f\u624b\u6cd5\u306f\u3069\u3046\u4f7f\u3044\u5206\u3051\u307e\u3059\u304b\uff1f<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">CLS\u306f\u4f4d\u7f6e\u5909\u5316\u3001LCP\u306f\u8868\u793a\u6642\u523b\u3001INP\u306f\u64cd\u4f5c\u5fdc\u7b54\u3092\u6e2c\u308b\u6307\u6a19\u3067\u3059\u3002<\/p>\n\n\n\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Cumulative Layout Shift\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"\u30da\u30fc\u30b8\u8868\u793a\u4e2d\u306b\u4e88\u671f\u305b\u305a\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u79fb\u52d5\u3057\u305f\u91cf\u3092\u8868\u3059Core Web Vitals\u306e\u6307\u6a19\u3067\u3059\u3002\u8aad\u307f\u8fbc\u307f\u4e2d\u306e\u8996\u899a\u7684\u306a\u5b89\u5b9a\u6027\u3092\u8a55\u4fa1\u3057\u307e\u3059\u3002\"}},{\"@type\":\"Question\",\"name\":\"Cumulative Layout 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