{"id":10761,"date":"2020-08-05T06:59:01","date_gmt":"2020-08-04T21:59:01","guid":{"rendered":"https:\/\/www.suzukikenichi.com\/blog\/?p=10761"},"modified":"2020-08-05T06:54:24","modified_gmt":"2020-08-04T21:54:24","slug":"chrome-stable-enables-you-to-identify-elements-that-cause-large-cls","status":"publish","type":"post","link":"https:\/\/www.suzukikenichi.com\/blog\/chrome-stable-enables-you-to-identify-elements-that-cause-large-cls\/","title":{"rendered":"Core Web Vitals\u6539\u5584: \u5b89\u5b9a\u7248Chrome\u3067\u5927\u304d\u306aCLS\u3092\u767a\u751f\u3055\u305b\u3066\u3044\u308b\u8981\u7d20\u3092\u7279\u5b9a\u3059\u308b"},"content":{"rendered":"<p class=\"p20-b al-r small\">[\u30ec\u30d9\u30eb: \u4e0a\u7d1a]<\/p>\n<p>\u5b89\u5b9a\u7248 Chrome \u3067 CLS \u3092\u767a\u751f\u3055\u305b\u308b\u8981\u7d20\u3092\u8abf\u3079\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p class=\"p60-b\">CLS \u306f <a href=\"https:\/\/www.suzukikenichi.com\/blog\/google-introduces-web-vitals\/\">Core Web Vitals<\/a>\uff08\u30b3\u30a2 \u30a6\u30a7\u30d6 \u30d0\u30a4\u30bf\u30eb\uff09 \u306e 3 \u3064\u306e\u6307\u6a19\u306e\u3046\u3061\u306e 1 \u3064\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u610f\u56f3\u3057\u306a\u3044\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u3092\u8868\u3057\u307e\u3059\u3002<\/p>\n<h2>Lighthouse \u304c\u30d0\u30fc\u30b8\u30e7\u30f3 6.0 \u306b\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8<\/h2>\n<p>CLS \u3092\u767a\u751f\u3055\u305b\u308b\u8981\u7d20\u306f\u30c7\u30d9\u30ed\u30c3\u30d1\u30fc\u30c4\u30fc\u30eb\u304b\u3089\u5229\u7528\u3067\u304d\u308b Lighthouse \u3067\u8abf\u3079\u3089\u308c\u307e\u3059\u3002<br \/>Lighthouse \u306e\u30d0\u30fc\u30b8\u30e7\u30f3 6.0 \u304c\u5bfe\u5fdc\u3057\u3066\u304a\u308a\u3001\u5b89\u5b9a\u7248\u306e Lighthouse \u3082 6.0 \u306b\u5148\u65e5\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><a href=\"https:\/\/www.google.com\/intl\/ja\/chrome\/canary\/\">Canary<\/a> \u306e <a href=\"https:\/\/www.suzukikenichi.com\/blog\/how-to-recognize-largest-content-and-how-to-identify-elements-causing-cls\/\">Lighthouse \u306f\u4e00\u8db3\u5148\u306b 6.0 \u306b\u306a\u3063\u3066\u3044\u3066 CLS \u8981\u7d20\u3092\u8abf\u3079\u308b\u3053\u3068\u304c\u3067\u304d\u3066<\/a>\u3044\u307e\u3057\u305f\u304c\u3001\u30c7\u30d9\u30ed\u30c3\u30d1\u30fc\u5411\u3051\u958b\u767a\u30d0\u30fc\u30b8\u30e7\u30f3\u306e Chrome \u306a\u306e\u3067\u3001\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u3044\u306a\u3044\u4eba\u306e\u307b\u3046\u304c\u591a\u305d\u3046\u3067\u3059\u3002<\/p>\n<p class=\"p40-b\">\u666e\u6bb5\u5229\u7528\u3057\u3066\u3044\u308b Chrome \u3092\u4f7f\u3063\u3066\u73fe\u5728\u306f CLS \u3092\u7279\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>Chrome \u5b89\u5b9a\u7248\u3067 CLS \u8981\u7d20\u3092\u7279\u5b9a\u3059\u308b\u65b9\u6cd5<\/h2>\n<p>Chrome \u5b89\u5b9a\u7248\u3067 CLS \u3092\u767a\u751f\u3055\u305b\u308b\u8981\u7d20\u3092\u7279\u5b9a\u3059\u308b\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<p>\u307e\u305a\u3001Chrome \u3092\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3057\u3066\u304f\u3060\u3055\u3044\u3002<br \/>[\u8a2d\u5b9a] \u21d2 [Chrome \u306b\u3064\u3044\u3066] \u3067\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>Lighthouse \u3092\u7acb\u3061\u4e0a\u3052\u307e\u3059\u3002<br \/>\u306a\u304a\u3001Lighthouse\uff08\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6e2c\u5b9a\uff09\u3092\u5229\u7528\u3059\u308b\u3068\u304d\u306f\u30b7\u30fc\u30af\u30ec\u30c3\u30c8\u30e2\u30fc\u30c9\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059\u3002<br \/><a href=\"https:\/\/webtan.impress.co.jp\/e\/2018\/06\/08\/29485\/page\/1#item01\">\u62e1\u5f35\u6a5f\u80fd\u304c\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u963b\u5bb3\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b<\/a>\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>Lighthouse \u306f\u3001\u30a6\u30a3\u30f3\u30c9\u30a6\u53f3\u4e0a\u306e\u7e26\u306e 3 \u3064\u306e\u30c9\u30c3\u30c8\u306e [\u305d\u306e\u4ed6\u306e\u30c4\u30fc\u30eb] \u306e\u4e2d\u306b\u3042\u308a\u307e\u3059\u3002<br \/>\u30b7\u30e7\u30fc\u30c8\u30ab\u30c3\u30c8\u30ad\u30fc\u3082\u4f7f\u3048\u307e\u3059\u3002Mac \u306e\u5834\u5408\u306f\u300cCmd+Opt+I\u300d\u3001Windows \u306e\u5834\u5408\u306f\u300cCtrl+Shift+I\u300d\u3067\u3059\u3002<br \/>F12 \u3067\u3082\u3044\u3051\u308b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u3044\u3061\u3070\u3093\u53f3\u306e [Lighthouse] \u30bf\u30d6\u3092\u9078\u629e\u3057\u307e\u3059\u3002<br \/>CLS \u3092\u8abf\u3079\u308b\u3060\u3051\u306a\u306e\u3067\u3001\u6642\u9593\u77ed\u7e2e\u306e\u305f\u3081\u306b Performance \u3060\u3051\u306b\u30c1\u30a7\u30c3\u30af\u3092\u5165\u308c\u307e\u3059\u3002<br \/>\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3001[Mobile]\uff08\u30b9\u30de\u30db\uff09\u3068 [Desktop]\uff08PC\uff09\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><img decoding=\"async\" itemprop=\"image\" loading=\"lazy\" class=\"bdr\" src=\"https:\/\/www.suzukikenichi.com\/images\/lighthouse00.png\" alt=\"Lighthouse\" width=\"800\" height=\"300\" \/><\/p>\n<p>[Generate report] \u3067\u8a08\u6e2c\u3092\u30b9\u30bf\u30fc\u30c8\u3057\u307e\u3059\u3002<\/p>\n<p>CLS \u306e\u30b9\u30b3\u30a2\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<br \/>Cumulative Layout Shift \u304c CLS \u3067\u3059\uff08Largest Contentful Paint \u304c LCP \u3067\u3059\u3002FID\/First Input Delay \u306f Lighthouse \u3067\u306f\u6e2c\u5b9a\u3067\u304d\u307e\u305b\u3093\u3002\u4ee3\u308f\u308a\u306b\u3001Total Blocking Time \u3092\u53c2\u8003\u6307\u6a19\u306b\u3057\u307e\u3059\uff09\u3002<\/p>\n<p><a href=\"https:\/\/www.suzukikenichi.com\/images\/cls-lighthouse2.png\" target=\"_blank\" rel=\"noopener noreferrer\"><img decoding=\"async\" itemprop=\"image\" loading=\"lazy\" class=\"bdr\" src=\"https:\/\/www.suzukikenichi.com\/images\/cls-lighthouse2.png\" alt=\"Layout Shift\" width=\"2438\" height=\"1550\" \/><\/a><\/p>\n<div class=\"p0-b\">\u203b\u30af\u30ea\u30c3\u30af\u3067\u62e1\u5927<\/div>\n<p>\u4e0b\u306b\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u3066 [Avoid large layout shifts] \u3092\u5c55\u958b\u3059\u308b\u3068\u3001CLS \u3092\u767a\u751f\u3055\u305b\u3066\u3044\u308b\u8981\u7d20\u3092\u7279\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/www.suzukikenichi.com\/images\/cls-lighthouse3.png\" target=\"_blank\" rel=\"noopener noreferrer\"><img decoding=\"async\" itemprop=\"image\" loading=\"lazy\" class=\"bdr\" src=\"https:\/\/www.suzukikenichi.com\/images\/cls-lighthouse3.png\" alt=\"Layout Shift\" width=\"cls-lighthouse3.png\" height=\"1498\" \/><\/a><\/p>\n<div class=\"p0-b\">\u203b\u30af\u30ea\u30c3\u30af\u3067\u62e1\u5927<\/div>\n<p>\u5de6\u30da\u30a4\u30f3\u3067\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u4e0a\u3067\u8a72\u5f53\u3059\u308b\u8981\u7d20\u304c\u30cf\u30a4\u30e9\u30a4\u30c8\u3055\u308c\u307e\u3059\u3002<\/p>\n<p class=\"p60-t\">CLS \u306e\u539f\u56e0\u306f\u3055\u307e\u3056\u307e\u3067\u3059\u3002\u753b\u50cf\u306e <code>img<\/code> \u30bf\u30b0\u306b\u3001<code>width<\/code> \u5c5e\u6027\u3068 <code>height<\/code> \u5c5e\u6027\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u3068\u304b\u3001JavaScript \u3067\u52d5\u7684\u306b\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u57cb\u3081\u8fbc\u3080\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u3053\u3067\u306f\u8a73\u3057\u3044\u3053\u3068\u306f\u8aac\u660e\u3057\u307e\u305b\u3093\u304c\u3001\u307e\u305a\u306f\u5927\u304d\u306a CLS \u306e\u539f\u56e0\u3068\u306a\u3063\u3066\u3044\u308b\u8981\u7d20\u3092\u767a\u898b\u3059\u308b\u3053\u3068\u304b\u3089\u59cb\u3081\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b89\u5b9a\u7248 Chrome \u3067 CLS \u3092\u767a\u751f\u3055\u305b\u308b\u8981\u7d20\u3092\u8abf\u3079\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3002CLS \u306f Core Web Vitals\uff08\u30b3\u30a2 \u30a6\u30a7\u30d6 \u30d0\u30a4\u30bf\u30eb\uff09 \u306e 3 \u3064\u306e\u6307\u6a19\u306e\u3046\u3061\u306e 1 \u3064\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u610f\u56f3\u3057\u306a\u3044\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u305a\u308c\u3092\u8868\u3059\u3002<\/p>\n","protected":false},"author":1,"featured_media":10762,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1543,1556],"class_list":["post-10761","post","type-post","status-publish","format-standard","has-post-thumbnail","category-google-seo","tag-core-web-vitals","tag-cls"],"_links":{"self":[{"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/posts\/10761","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/comments?post=10761"}],"version-history":[{"count":0,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/posts\/10761\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/media\/10762"}],"wp:attachment":[{"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/media?parent=10761"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/categories?post=10761"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/tags?post=10761"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}