{"id":4816,"date":"2021-10-24T19:00:53","date_gmt":"2021-10-24T10:00:53","guid":{"rendered":"https:\/\/gmotech.jp\/semlabo\/?p=4816"},"modified":"2022-09-15T12:50:56","modified_gmt":"2022-09-15T03:50:56","slug":"lazyload","status":"publish","type":"post","link":"https:\/\/gmotech.jp\/semlabo\/seo\/blog\/lazyload\/","title":{"rendered":"Lazy Load\u3068\u306f\uff1f\u30e1\u30ea\u30c3\u30c8\u3084\u30c6\u3099\u30e1\u30ea\u30c3\u30c8\u30fb\u5b9f\u88c5\u3059\u308b\u65b9\u6cd5\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac"},"content":{"rendered":"<section>\n<h2>Lazy Load\u3068\u306f<\/h2>\n<p><em>Lazy Load\uff08\u30ec\u30a4\u30b8\u30fc\u30ed\u30fc\u30c9\uff09<\/em>\u3068\u306f\u753b\u50cf\u306e\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\u3092\u884c\u3046\u305f\u3081\u306eJavaScript\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3059\u3002\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\u306f\u753b\u50cf\u306e\u8aad\u307f\u8fbc\u307f\u306b\u6642\u9593\u5dee\u3092\u8a2d\u3051\u3066\u8868\u793a\u3055\u305b\u3001\u753b\u9762\u8868\u793a\u306e\u9ad8\u901f\u5316\u3092\u56f3\u308b\u3057\u304f\u307f\u3067\u3059\u3002<\/p>\n<p>\u30d6\u30e9\u30a6\u30b6\u306f\u6307\u5b9a\u306e\u30da\u30fc\u30b8\u306b\u542b\u307e\u308c\u308b\u3059\u3079\u3066\u306e\u753b\u50cf\u3092\u4e00\u6c17\u306b\u8aad\u307f\u8fbc\u307e\u305b\u3088\u3046\u3068\u3057\u307e\u3059\u3002\u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u306e\u5bb9\u91cf\u304c\u591a\u3051\u308c\u3070\u305d\u308c\u3060\u3051\u8aad\u307f\u8fbc\u307f\u306b\u306f\u6642\u9593\u304c\u304b\u304b\u308b\u305f\u3081\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3084\u30b5\u30fc\u30d0\u30fc\u306b\u8ca0\u62c5\u304c\u304b\u304b\u308b\u70b9\u304c\u61f8\u5ff5\u3055\u308c\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u9632\u5fa1\u7b56\u3068\u3057\u3066\u3001Lazy Load\u3068\u3044\u3046\u8868\u793a\u901f\u5ea6\u3092\u9ad8\u901f\u5316\u3055\u305b\u308b\u5236\u5fa1\u6280\u8853\u304c\u7528\u3044\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>Lazy Load\u3092\u6d3b\u7528\u3059\u308b\u3068\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u5b9f\u969b\u306b\u898b\u3066\u3044\u308b\u753b\u9762\u306e\u5916\u306b\u3042\u308b\u753b\u50cf\u306f\u8aad\u307f\u8fbc\u307f\u307e\u305b\u3093\u3002\u4e0b\u56f3\u306e\u3088\u3046\u306a\u30c0\u30df\u30fc\u753b\u50cf\u3092\u8aad\u307f\u8fbc\u307e\u305b\u3066\u304a\u304d\u307e\u3059\u3002\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u3066\u753b\u50cf\u304c\u753b\u9762\u306b\u8fd1\u3065\u3044\u305f\u6642\u70b9\u3067\u672c\u6765\u306e\u753b\u50cf\u306e\u8aad\u307f\u8fbc\u307f\u3092\u958b\u59cb\u3055\u305b\u307e\u3059\u3002\u3064\u307e\u308a\u3001<em>\u30e6\u30fc\u30b6\u30fc\u304c\u898b\u3066\u3044\u308b\u753b\u9762\u7bc4\u56f2\u306b\u5408\u308f\u305b\u3066\u5fc5\u8981\u306a\u5206\u3060\u3051\u753b\u50cf\u8868\u793a\u3055\u305b\u308b<\/em>\u753b\u671f\u7684\u306a\u6280\u8853\u306a\u306e\u3067\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/gmotech.jp\/semlabo\/wp-content\/uploads\/2021\/10\/lazyload01.png\" alt=\"azy Load\"><\/p>\n<p>\u53c2\u8003\uff1a<a href=\"https:\/\/developers.google.com\/search\/docs\/advanced\/javascript\/lazy-loading?hl=ja\" target=\"_blank\" rel=\"noopener noreferrer external nofollow\" class=\"external\">\u8aad\u307f\u8fbc\u307f\u306e\u9045\u3044\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u4fee\u6b63\u3059\u308b<\/a>\uff08Google\uff09<\/p>\n<\/section>\n<section>\n<h2>Lazy Load\u306e\u30e1\u30ea\u30c3\u30c8<\/h2>\n<p>Lazy Load\u306fWeb\u30da\u30fc\u30b8\u306e\u8868\u793a\u901f\u5ea6\u304c\u5411\u4e0a\u3059\u308b\u305f\u3081\u3001<em><a href=\"https:\/\/gmotech.jp\/semlabo\/webmarketing\/blog\/words_userbility\/\" data-internallinksmanager029f6b8e52c=\"9\" title=\"\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3\u3068\u306f\uff1f\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u3068\u306e\u9055\u3044\u3084\u53c2\u8003\u4f8b\u3092\u7d39\u4ecb\">\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3<\/a>\u3082\u5411\u4e0a\u3057\u307e\u3059<\/em>\u3002\u9ad8\u901f\u306a\u8868\u793a\u306f\u30e6\u30fc\u30b6\u30fc\u306e\u30b9\u30c8\u30ec\u30b9\u306e\u8efd\u6e1b\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u9006\u306b<em>\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3\u304c\u4f4e\u3044\u3068\u30da\u30fc\u30b8\u306e\u96e2\u8131\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059<\/em>\u3002\u30da\u30fc\u30b8\u96e2\u8131\u306b\u81f3\u308b\u539f\u56e0\u306f\u8907\u6570\u3042\u308a\u307e\u3059\u304c\u3001\u8868\u793a\u901f\u5ea6\u3082\u5927\u304d\u306a\u8981\u56e0\u3067\u3059\u3002<\/p>\n<p>Google\u304c2017\u5e74\u306b\u884c\u3063\u305f\u8abf\u67fb\u306b\u3088\u308b\u3068\u30da\u30fc\u30b8\u901f\u5ea6\u304c1\u79d2\u304b\u30893\u79d2\u306b\u306a\u3063\u305f\u3060\u3051\u3067<em>32\uff05<\/em>\u3082\u306e\u76f4\u5e30\u7387\u306b\u8df3\u306d\u4e0a\u304c\u308a\u30016\u79d2\u306b\u306a\u308b\u3068<em>106\uff05<\/em>\u307e\u3067\u4e0a\u6607\u3057\u305f\u3068\u3044\u3046\u7d50\u679c\u3092\u5831\u544a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u51fa\u5178\uff1a<a href=\"https:\/\/support.google.com\/webmasters\/answer\/9205520?hl=ja\" target=\"_blank\" rel=\"noopener noreferrer external nofollow\" class=\"external\">\u30a6\u30a7\u30d6\u306b\u95a2\u3059\u308b\u4e3b\u306a\u6307\u6a19\u30ec\u30dd\u30fc\u30c8<\/a>\uff08Google Console\u30d8\u30eb\u30d7\uff09<\/p>\n<p>\u30da\u30fc\u30b8\u306e\u8868\u793a\u901f\u5ea6\u304c\u9045\u3044\u3053\u3068\u306f\u30e6\u30fc\u30b6\u30fc\u306b\u3068\u3063\u3066\u306f\u4e0d\u5feb\u3067\u3057\u304b\u306a\u3044\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u73fe\u5728\u3001\u30da\u30fc\u30b8\u8868\u793a\u306e\u9ad8\u901f\u5316\u306fSEO\u4e0a\u512a\u9047\u3055\u308c\u307e\u3059\u3002Google\u306f\u8868\u793a\u901f\u5ea6\u3092\u30da\u30fc\u30b8\u306e\u30e9\u30f3\u30ad\u30f3\u30b0\u8981\u7d20\u3068\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u30b5\u30a4\u30c8\u904b\u55b6\u306b\u304a\u3044\u3066\u306f\u8efd\u8996\u3067\u304d\u306a\u3044\u70b9\u3067\u3059\u3002\u307e\u305f\u8fd1\u5e74\u306f\u30e2\u30d0\u30a4\u30eb\u5316\u306e\u666e\u53ca\u306b\u3088\u308a\u3001Google\u306f\u30e2\u30d0\u30a4\u30eb\u30d5\u30ec\u30f3\u30c9\u30ea\u30fc\u3068\u3044\u3046\u65b9\u91dd\u3092\u6253\u3061\u51fa\u3057\u3066\u3044\u307e\u3059\u3002\u7279\u306b<em>\u30e2\u30d0\u30a4\u30eb\u5411\u3051\u306e\u8868\u793a\u901f\u5ea6<\/em>\u304c\u91cd\u8981\u8996\u3055\u308c\u308b\u50be\u5411\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u53c2\u8003\uff1a<a href=\"https:\/\/support.google.com\/webmasters\/answer\/9063469?hl=ja\" target=\"_blank\" rel=\"noopener noreferrer external nofollow\" class=\"external\">\u30e2\u30d0\u30a4\u30eb\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3\u30ec\u30dd\u30fc\u30c8<\/a>\uff08Google\uff09<\/p>\n<div class=\"qoute\">\n<p>\u95a2\u9023\u8a18\u4e8b\uff1a<\/p>\n<ul>\n<li><a href=\"https:\/\/gmotech.jp\/semlabo\/seo\/blog\/corewebvitals_lcp\/\">LCP\u306e\u6539\u5584\u65b9\u6cd5\uff5cCore Web Vitals\u3068\u306e\u95a2\u4fc2\u3084\u6e2c\u5b9a\u30c4\u30fc\u30eb\u3082\u89e3\u8aac<\/a><\/li>\n<li><a href=\"https:\/\/gmotech.jp\/semlabo\/seo\/blog\/cwv_cls\/\">Google \u30b3\u30a2\u30a6\u30a7\u30d6\u30d0\u30a4\u30bf\u30eb\uff08Core Web Vitals\uff09\u3068\u306f\uff1fLCP\u30fbFID\u30fbCLS\u306e\u610f\u5473\uff06\u30e9\u30f3\u30ad\u30f3\u30af\u3099\u6539\u5584\u65b9\u6cd5<\/a><\/li>\n<li><a href=\"https:\/\/gmotech.jp\/semlabo\/seo\/blog\/mobile_first_index\/\">MFI\u3068\u306f\uff1f\u79fb\u884c\u306e\u78ba\u8a8d\u65b9\u6cd5\u3084\u30e2\u30d0\u30a4\u30eb\u30d5\u30ec\u30f3\u30c9\u30ea\u30fc\u5bfe\u7b56\u306b\u3064\u3044\u3066\u89e3\u8aac<\/a><\/li>\n<\/ul>\n<\/div>\n<\/section>\n<section>\n<h2>Lazy Load\u306e\u30c7\u30e1\u30ea\u30c3\u30c8<\/h2>\n<p>Lazy Load\u306e\u30c7\u30e1\u30ea\u30c3\u30c8\u306f\u30af\u30ed\u30fc\u30e9\u30fc\u306b\u753b\u50cf\u3092\u8a8d\u8b58\u3057\u3066\u3082\u3089\u3048\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308b\u3053\u3068\u3067\u3059\u3002\u30af\u30ed\u30fc\u30e9\u30fc\u306f\u30da\u30fc\u30b8\u60c5\u5831\u3092\u53ce\u96c6\u3059\u308b\u969b\u3001\u4eba\u9593\u306e\u3088\u3046\u306b\u30b9\u30af\u30ed\u30fc\u30eb\u3068\u3044\u3046\u52d5\u4f5c\u3092\u304a\u3053\u306a\u308f\u306a\u3044\u305f\u3081\u3001\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\u3055\u305b\u305f\u753b\u50cf\u3092\u8a8d\u8b58\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u9ad8\u901f\u8868\u793a\u306f\u30e6\u30fc\u30b6\u30fc\u306b\u3068\u3063\u3066\u306f\u5229\u4fbf\u6027\u306e\u9ad8\u3044\u6280\u8853\u3067\u3059\u304c\u3001\u30af\u30ed\u30fc\u30e9\u30fc\u306e\u8996\u70b9\u3067\u8003\u3048\u308b\u3068\u30c7\u30e1\u30ea\u30c3\u30c8\u8981\u7d20\u3068\u306a\u3063\u3066\u3044\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001<em>Google\u306f\u56de\u907f\u7b56\u3092\u7528\u610f\u3057\u3066\u3044\u307e\u3059<\/em>\u3002\u8a73\u3057\u304f\u306fGoogle\u516c\u5f0f\u30b5\u30a4\u30c8\u306e\u300c<a href=\"https:\/\/developers.google.com\/search\/docs\/advanced\/javascript\/lazy-loading\" target=\"_blank\" rel=\"noopener noreferrer external nofollow\" class=\"external\">\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\u30b3\u30f3\u30c6\u30f3\u30c4\u3092Google\u304c\u8a8d\u8b58\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b<\/a>\u300d\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"qoute\">\u95a2\u9023\u8a18\u4e8b\uff1a<br \/><a href=\"https:\/\/gmotech.jp\/semlabo\/seo\/blog\/searchengine-guide\/\">\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u3068\u306f\uff1f\u7a2e\u985e\u3001\u691c\u7d22\u9806\u4f4d\u306e\u4ed5\u7d44\u307f\u3001SEO\u5bfe\u7b56\u306e\u30dd\u30a4\u30f3\u30c8\u306b\u3064\u3044\u3066\u89e3\u8aac<\/a><\/div>\n<\/section>\n<section>\n<h2>Lazy Load\u3092\u5b9f\u88c5\u3059\u308b\u65b9\u6cd5<\/h2>\n<p>Lazy Load\u3092\u5b9f\u88c5\u3059\u308b\u65b9\u6cd5\u3068\u3057\u3066<em>\u4ee5\u4e0b\uff13\u3064<\/em>\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3010Lazy Load\u306e\u5b9f\u88c5\u65b9\u6cd5\u3011<\/p>\n<ul>\n<li>loading\u5c5e\u6027\u3067\u5b9f\u88c5\u3059\u308b<\/li>\n<li>JavaScript\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u5b9f\u88c5\u3059\u308b<\/li>\n<li>WordPress\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u5b9f\u88c5\u3059\u308b<\/li>\n<\/ul>\n<section>\n<h3>loading\u5c5e\u6027\u3067\u5b9f\u88c5\u3059\u308b<\/h3>\n<p><em>loading\u5c5e\u6027<\/em>\u3068\u306f\u30d6\u30e9\u30a6\u30b6\u304c\u30cd\u30a4\u30c6\u30a3\u30d6\uff08\u6a19\u6e96\u6a5f\u80fd\uff09\u3067\u642d\u8f09\u3059\u308b\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3092\u6307\u5b9a\u3059\u308b\u3082\u306e\u3067\u3059\u3002<em><a href=\"https:\/\/gmotech.jp\/semlabo\/webmarketing\/blog\/html-basic\/\" data-internallinksmanager029f6b8e52c=\"59\" title=\"HTML\">HTML<\/a>\u30bf\u30b0\u306b\u8ffd\u8a18\u3059\u308b\u3060\u3051<\/em>\u3067\u4f7f\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002loading\u5c5e\u6027\u3067\u306fimg\u8981\u7d20\uff08\u753b\u50cf\uff09\u3084iframe\u8981\u7d20\uff08YouTube\u3084Google\u30de\u30c3\u30d7\u306a\u3069\uff09\u3092\u7c21\u5358\u306b\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\u3067\u304d\u308b\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n<p>\u5177\u4f53\u7684\u306b\u306f\u3001img\u8981\u7d20\u3084iframe\u8981\u7d20\u306b<em>\u300cloading=&#8221;lazy&#8221;\u300d<\/em>\u3068\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n<p>\u3010img\u8981\u7d20\u3011<\/p>\n<pre class=\"lang:javascript\">&lt;img scr=\"\u753b\u50cf\u306eURL\" alt=\"\" loading=\"lazy\"&gt;<\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/gmotech.jp\/semlabo\/wp-content\/uploads\/2021\/10\/lazyload03.png\" alt=\"img\u8981\u7d20\u306eloading\u5c5e\u6027\u8a18\u8ff0\u65b9\u6cd5\"><\/p>\n<p>\u203b\u300cloading=&#8221;lazy&#8221;\u300d\u306e\u633f\u5165\u5834\u6240\u306f\u3069\u3053\u3067\u3082\u3088\u3044<\/p>\n<p>\u3010iframe\u8981\u7d20\u3011<\/p>\n<pre class=\"lang:javascript\">&lt;iframe src=\"\u57cb\u3081\u8fbc\u3080\u30da\u30fc\u30b8\u306eURL\" loading=\"lazy\"&gt;&lt;\/iframe><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/gmotech.jp\/semlabo\/wp-content\/uploads\/2021\/10\/lazyload02.png\" alt=\"iframe\u8981\u7d20\u306eloading\u5c5e\u6027\u8a18\u8ff0\u65b9\u6cd5\"><\/p>\n<p>\u203b\u300cloading=&#8221;lazy&#8221;\u300d\u306e\u633f\u5165\u5834\u6240\u306f\u3069\u3053\u3067\u3082\u3088\u3044<\/p>\n<p>\u306a\u304a\u3001width\u3068height\u5c5e\u6027\u3067\u753b\u50cf\u8868\u793a\u30b5\u30a4\u30ba\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u5fc5\u9808\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u30d6\u30e9\u30a6\u30b6\u304c\u30da\u30fc\u30b8\u3092\u8aad\u307f\u8fbc\u3080\u969b\u306b\u3001\u6307\u5b9a\u3057\u305f\u30b5\u30a4\u30ba\u5206\u306e\u753b\u50cf\u306e\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u30fc\u3092\u8868\u793a\u3057\u3066\u30c6\u30ad\u30b9\u30c8\u8aad\u307f\u8fbc\u307f\u3092\u958b\u59cb\u3055\u305b\u308b\u305f\u3081\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u4f53\u611f\u901f\u5ea6\u306e\u5411\u4e0a\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<em>\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3\u3092\u8003\u616e\u3059\u308b\u3068\u8a2d\u7f6e\u3057\u305f\u65b9\u304c\u3088\u3044\u3067\u3057\u3087\u3046<\/em>\u3002<\/p>\n<p>\u4e3b\u306aloading\u5c5e\u6027\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u30e1\u30b8\u30e3\u30fc\u306a\u30d6\u30e9\u30a6\u30b6\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<ul>\n<li>Chrome<\/li>\n<li>Edge<\/li>\n<li>Firefox<\/li>\n<li>Opera<\/li>\n<\/ul>\n<p>2021\u5e749\u6708\u73fe\u5728\u3001safari\u306f\u300c\u5b9f\u9a13\u7684\u306a\u6a5f\u80fd\u300d\u3068\u3057\u3066\u8ffd\u52a0\u3057\u3066\u304a\u308a\u3001\u6709\u52b9\u5316\u3059\u308c\u3070\u30c6\u30b9\u30c8\u53ef\u80fd\u3067\u3059\u3002\u305d\u306e\u4ed6\u3001loading\u5c5e\u6027\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u30d6\u30e9\u30a6\u30b6\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u306a\u3044\u30d6\u30e9\u30a6\u30b6\u3067\u306floading\u5c5e\u6027\u306f\u7121\u8996\u3055\u308c\u308b\u305f\u3081\u3001\u5f93\u6765\u901a\u308a\u306e\u753b\u50cf\u8868\u793a\u304c\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>\u53c2\u8003\u30b5\u30a4\u30c8\uff1a<a href=\"https:\/\/caniuse.com\/loading-lazy-attr\" target=\"_blank\" rel=\"noopener noreferrer external nofollow\" class=\"external\">\u73fe\u6642\u70b9\u306e\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6<\/a><\/p>\n<p>\u3061\u306a\u307f\u306b\u3001loading\u5c5e\u6027\u306f\u300cLoad\u300d\u306e\u4ed6\u306b\u3082\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u308b\u5024\u304c\u3042\u308b\u306e\u3067\u899a\u3048\u3066\u304a\u304f\u3068\u3088\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<ul class=\"style-none\">\n<li>auto\uff1a\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\u3059\u308b\u304b\u3069\u3046\u304b\u30d6\u30e9\u30a6\u30b6\u306b\u59d4\u306d\u308b\u3000\u203bloading\u5c5e\u6027\u3092\u5b9a\u7fa9\u3057\u306a\u3044\u5834\u5408\u3068\u540c\u3058<\/li>\n<li>eager\uff1a\u9045\u5ef6\u30ed\u30fc\u30c9\u306b\u9069\u3055\u306a\u3044\u5024\u306e\u305f\u3081\u3001\u3059\u3050\u306b\u30ed\u30fc\u30c9\u3059\u308b<\/li>\n<\/ul>\n<p>\u53c2\u8003\uff1a<a href=\"https:\/\/web.dev\/browser-level-image-lazy-loading\/\" target=\"_blank\" rel=\"noopener noreferrer external nofollow\" class=\"external\">Web\u7528\u306e\u30d6\u30e9\u30a6\u30b6\u30ec\u30d9\u30eb\u306e\u753b\u50cf\u306e\u9045\u5ef6\u8aad\u307f\u8fbc\u307f<\/a>\uff08web.dev\uff09<\/p>\n<\/section>\n<section>\n<h3>JavaScript\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u5b9f\u88c5\u3059\u308b<\/h3>\n<p>loading\u5c5e\u6027\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u30d6\u30e9\u30a6\u30b6\u306e\u5834\u5408\u3001JavaScript\u30e9\u30a4\u30d6\u30e9\u30ea<em>\u300cLayzr.js\u300d<\/em>\u3067\u5b9f\u88c5\u3057\u307e\u3059\u3002\u5177\u4f53\u7684\u306a\u624b\u9806\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<ul class=\"style-decimal\">\n<li>\u300c<a href=\"https:\/\/github.com\/tuupola\/lazyload\" target=\"_blank\" rel=\"noopener noreferrer external nofollow\" class=\"external\">https:\/\/github.com\/tuupola\/lazyload<\/a>\u300d\u3088\u308a\u30d5\u30a1\u30a4\u30eb\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/li>\n<li>script\u30bf\u30b0\u306e\u8a2d\u5b9a<\/li>\n<li>class=\u201dlazyload\u201d\u3068data-src\u5c5e\u6027\u3092img\u30bf\u30b0\u306b\u8a18\u8ff0<\/li>\n<li>lazyload()\u95a2\u6570\u306e\u5b9f\u884c<\/li>\n<\/ul>\n<p>\u30d5\u30a1\u30a4\u30eb\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u5f8c\u3001script\u30bf\u30b0\u3092\u8a2d\u7f6e\u3057\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/gmotech.jp\/semlabo\/wp-content\/uploads\/2021\/10\/lazyload04.png\" alt=\"script\u30bf\u30b0\u3092\u8a2d\u7f6e\"><\/p>\n<p>\u6b21\u306b\u3001img\u30bf\u30b0\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002Img\u30bf\u30b0\u306b\u300cclass=\u201dlazyload\u201d\u300d\u3001data-src\u5c5e\u6027\u306b\u753b\u50cf\u30d1\u30b9\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/gmotech.jp\/semlabo\/wp-content\/uploads\/2021\/10\/lazyload05.png\" alt=\"data-src\u5c5e\u6027\u306b\u753b\u50cf\u30d1\u30b9\u3092\u6307\u5b9a\"><\/p>\n<p>\u6700\u5f8c\u306blazyload()\u95a2\u6570\u3092\u5b9f\u884c\u3057\u3066\u7d42\u4e86\u3067\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/gmotech.jp\/semlabo\/wp-content\/uploads\/2021\/10\/lazyload06.png\" alt=\"lazyload()\u95a2\u6570\u3092\u5b9f\u884c\"><\/p>\n<p>\u306a\u304a\u3001iframe\u306e\u5834\u5408\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/gmotech.jp\/semlabo\/wp-content\/uploads\/2021\/10\/lazyload07.png\" alt=\"iframe\u306e\u5834\u5408\u306e\u8a2d\u5b9a\u65b9\u6cd5\"><br \/>\n<\/section>\n<section>\n<h3>WordPress\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u5b9f\u88c5\u3059\u308b<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/gmotech.jp\/semlabo\/wp-content\/uploads\/2021\/10\/lazyload08.png\" alt=\"Lazyload\u30d7\u30e9\u30b0\u30a4\u30f3\"><\/p>\n<p>WordPress\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001WordPress\u306b\u642d\u8f09\u3055\u308c\u3066\u3044\u308b\u30d7\u30e9\u30b0\u30a4\u30f3\u6a5f\u80fd\u3092\u4f7f\u3063\u3066\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\u3092\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002WordPress\u3067\u306f\u3001<em>img\u3084iframe\u30bf\u30b0\u306b\u300cloading=\u201dlazy\u201d\u300d\u304c\u81ea\u52d5\u7684\u306b\u8ffd\u52a0\u3055\u308c\u308b<\/em>\u4ed5\u69d8\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u7279\u5225\u306a\u8a2d\u5b9a\u3082\u306a\u304f<em>\u7c21\u5358\u306b\u5b9f\u88c5\u3067\u304d\u307e\u3059<\/em>\u3002<\/p>\n<p>WordPress\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u306f\u8907\u6570\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u4eca\u56de\u306f\u8efd\u91cf\u304b\u3064\u8a2d\u5b9a\u304c\u30b7\u30f3\u30d7\u30eb\u306a\u300c<a href=\"https:\/\/ja.wordpress.org\/plugins\/rocket-lazy-load\/\" target=\"_blank\" rel=\"noopener noreferrer external nofollow\" class=\"external\">Lazy Load\u2013Optimize Images<\/a>\u300d\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002WordPress\u521d\u5fc3\u8005\u3067\u3082\u4f7f\u3044\u3084\u3059\u3044\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u3059\u3002<\/p>\n<p>\u5177\u4f53\u7684\u306a\u5b9f\u88c5\u65b9\u6cd5\u306e\u6d41\u308c\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<ul class=\"style-decimal\">\n<li>\u7ba1\u7406\u753b\u9762\u306e\u30e1\u30cb\u30e5\u30fc\u306e\u4e2d\u306b\u3042\u308b\u300c\u30d7\u30e9\u30b0\u30a4\u30f3\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u305f\u5f8c\u306b\u300c\u65b0\u898f\u8ffd\u52a0\u300d\u3092\u30af\u30ea\u30c3\u30af<\/li>\n<li>\u691c\u7d22\u7a93\u300cLazy Load\u2013Optimize Images\u300d\u3068\u5165\u529b<\/li>\n<li>Lazy Load\u2013Optimize Images\u306e\u300c\u4eca\u3059\u3050\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u300d\u3092\u30af\u30ea\u30c3\u30af<\/li>\n<li>\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u304c\u5b8c\u4e86\u3057\u305f\u3089\u300c\u6709\u52b9\u5316\u300d\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af<\/li>\n<li>\u7ba1\u7406\u753b\u9762\u306e\u30e1\u30cb\u30e5\u30fc\u306e\u4e2d\u306b\u3042\u308b\u300c\u8a2d\u5b9a\u300d\u304b\u3089\u300cLazyLoad\u300d\u3092\u30af\u30ea\u30c3\u30af<\/li>\n<li>\u300cLazy Load \u2013 Optimize Images\u300d\u306e\u8a2d\u5b9a\u753b\u9762\u3067\u300cimages\u300d\u300cIframes &#038; Videos\u300d\u300cReplace Youtube videos by thumbnail\u300d\u306b\u30c1\u30a7\u30c3\u30af\u3092\u3064\u3051\u308b<\/li>\n<li>\u300cSAVE CHENGES\u300d\u3092\u30af\u30ea\u30c3\u30af<\/li>\n<\/ul>\n<p>\u306a\u304a\u3001\u2465\u306e\u30c1\u30a7\u30c3\u30af\u9805\u76ee\u306e\u610f\u5473\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/gmotech.jp\/semlabo\/wp-content\/uploads\/2021\/10\/lazyload09.png\" alt=\"Lazy Load \u2013 Optimize Images\u306e\u30c1\u30a7\u30c3\u30af\u9805\u76ee\"><\/p>\n<p>\u5bfe\u8c61\u306a\u308b\u753b\u50cf\u306b\u3064\u3044\u3066\u306f\u3001Wordpress\u516c\u5f0f\u30b5\u30a4\u30c8\u306e\u300c<a href=\"https:\/\/make.wordpress.org\/core\/2020\/07\/14\/lazy-loading-images-in-5-5\/#grav-311f5b078f20df54be55cbe1a5a45f1e-0:~:text=Customizing%20lazy%2Dloading\" target=\"_blank\" rel=\"noopener noreferrer external nofollow\" class=\"external\">Lazy-loading images in 5.5 \u2013 Make WordPress Core<\/a>\u300d\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001Wordpress\u3067\u81ea\u52d5\u7684\u306bLazy Load\u304c\u8ffd\u52a0\u3055\u308c\u308b\u306b\u306f\u6761\u4ef6\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u306f\u3001\u753b\u50cf\u30bf\u30b0\u306e\u4e2d\u306b<em>\u300cwidth\u5c5e\u6027\u300d\u3068\u300cheight\u5c5e\u6027\u300d<\/em>\u304c\u8a18\u8ff0\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3067\u3059\u3002\u306a\u305c\u3053\u306e\u3088\u3046\u306a\u6761\u4ef6\u304c\u3042\u308b\u306e\u304b\u3068\u3044\u3046\u3068\u3001\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\uff08\u753b\u50cf\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u30ba\u30ec\uff09\u3092\u9632\u6b62\u3059\u308b\u305f\u3081\u3067\u3059\u3002\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\u306e\u767a\u751f\u306f\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3\u306e\u4f4e\u4e0b\u3084SEO\u306e\u691c\u7d22\u9806\u4f4d\u306b\u5f71\u97ff\u304c\u3067\u308b\u305f\u3081\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u306a\u304a\u30ec\u30a4\u30a2\u30a6\u30c8\u30b7\u30d5\u30c8\u306b\u3064\u3044\u3066\u306f\u4ee5\u4e0b\u306e\u95a2\u9023\u8a18\u4e8b\u3084\u53c2\u8003\u30b5\u30a4\u30c8\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"qoute\">\u95a2\u9023\u8a18\u4e8b\uff1a<br \/><a href=\"https:\/\/gmotech.jp\/semlabo\/seo\/blog\/corewebvitals_lcp\/\">LCP\u306e\u6539\u5584\u65b9\u6cd5\uff5cCore Web Vitals\u3068\u306e\u95a2\u4fc2\u3084\u6e2c\u5b9a\u30c4\u30fc\u30eb\u3082\u89e3\u8aac<\/a><\/div>\n<p>\u53c2\u8003\uff1a<br \/><a href=\"https:\/\/web.dev\/optimize-cls\/\" target=\"_blank\" rel=\"noopener noreferrer external nofollow\" class=\"external\">Cumulative Layout Shift \u3092\u6700\u9069\u5316\u3059\u308b<\/a>\uff08web.dev\uff09<br \/><a href=\"https:\/\/support.google.com\/webmasters\/answer\/9205520?hl=ja\" target=\"_blank\" rel=\"noopener noreferrer external nofollow\" class=\"external\">\u30a6\u30a7\u30d6\u306b\u95a2\u3059\u308b\u4e3b\u306a\u6307\u6a19\u30ec\u30dd\u30fc\u30c8<\/a>\uff08Google\uff09<\/p>\n<\/section>\n<\/section>\n<section>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u753b\u50cf\u306e\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\u306f<em>\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3\u3084SEO\u306b\u5f71\u97ff<\/em>\u3059\u308b\u305f\u3081\u3001\u5bfe\u7b56\u306f\u5fc5\u9808\u3068\u3044\u3048\u308b\u3067\u3057\u3087\u3046\u3002\u5b9f\u88c5\u3059\u308b\u65b9\u6cd5\u3092\u8907\u6570\u7d39\u4ecb\u3057\u307e\u3057\u305f\u304c\u3001\u73fe\u5728\u306e\u74b0\u5883\u306b\u5408\u308f\u305b\u3066\u9078\u629e\u3059\u308b\u3068\u3088\u3044\u3067\u3057\u3087\u3046\u3002Wordpress\u30e6\u30fc\u30b6\u30fc\u3067\u3042\u308c\u3070\u3001\u81ea\u52d5\u7684\u306b\u30bf\u30b0\u3092\u8ffd\u52a0\u3059\u308b\u6a5f\u80fd\u304c\u642d\u8f09\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u7c21\u5358\u306b\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u307e\u305fLazy 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