{"id":15396,"date":"2025-09-03T07:00:00","date_gmt":"2025-09-02T22:00:00","guid":{"rendered":"https:\/\/www.suzukikenichi.com\/blog\/?p=15396"},"modified":"2025-09-03T06:55:53","modified_gmt":"2025-09-02T21:55:53","slug":"best-practices-for-lazy-loading-and-its-impact-on-seo","status":"publish","type":"post","link":"https:\/\/www.suzukikenichi.com\/blog\/best-practices-for-lazy-loading-and-its-impact-on-seo\/","title":{"rendered":"Lazy Loading\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3068SEO\u3078\u306e\u5f71\u97ff"},"content":{"rendered":"<p class=\"p20-b al-r small\">[\u30ec\u30d9\u30eb: \u4e2d\u7d1a]<\/p>\n<p>Search Off the Record \u30dd\u30c3\u30c9\u30ad\u30e3\u30b9\u30c8\u306e<a href=\"https:\/\/search-off-the-record.libsyn.com\/lazy-loading-demystified\">\u30a8\u30d4\u30bd\u30fc\u30c9 98<\/a> \u3067\u306f\u3001John Mueller\uff08\u30b8\u30e7\u30f3\u30fb\u30df\u30e5\u30fc\u30e9\u30fc\uff09\u6c0f\u3068 Martin Splitt\uff08\u30de\u30fc\u30c6\u30a3\u30f3\u30fb\u30b9\u30d7\u30ea\u30c3\u30c8\uff09\u6c0f\u304c Lazy Loading\uff08\u30ec\u30a4\u30b8\u30fc\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\uff09\u3092\u30c6\u30fc\u30de\u306b\u30c7\u30a3\u30b9\u30ab\u30c3\u30b7\u30e7\u30f3\u3057\u307e\u3057\u305f\u3002<\/p>\n<p class=\"p30-b p30-t\"><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/XgkhNF1gDKA?si=U-fyjhsmagAmYh0L\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>Lazy Loading \u306f\u3001\u753b\u50cf\u3084\u52d5\u753b\u306e\u3088\u3046\u306a\u91cd\u8981\u3067\u306a\u3044\u30ea\u30bd\u30fc\u30b9\u306e\u8aad\u307f\u8fbc\u307f\u3092\u3001\u5fc5\u8981\u306b\u306a\u308b\u307e\u3067\u9045\u5ef6\u3055\u305b\u308b\u6280\u8853\u3067\u3059\u3002<br \/>\u4e3b\u306b\u30b3\u30a2\u30a6\u30a7\u30d6\u30d0\u30a4\u30bf\u30eb\u3092\u6539\u5584\u3067\u304d\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u624b\u6cd5\u3067\u3059\u3002<br \/>\u3057\u304b\u3057\u3001\u7279\u306b\u30ab\u30b9\u30bf\u30e0\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u3088\u308b\u4e0d\u9069\u5207\u306a\u5b9f\u88c5\u306f\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u767b\u9332\u3084\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u306b\u60aa\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p class=\"p60-b\">\u3053\u306e\u8a18\u4e8b\u3067\u306f\u30012 \u4eba\u306e\u30c7\u30a3\u30b9\u30ab\u30c3\u30b7\u30e7\u30f3\u306e\u30cf\u30a4\u30e9\u30a4\u30c8\u3092\u307e\u3068\u3081\u307e\u3059\u3002<\/p>\n<h2>Lazy Loading \u30c7\u30a3\u30b9\u30ab\u30c3\u30b7\u30e7\u30f3\u306e\u4e3b\u8981\u30dd\u30a4\u30f3\u30c8<\/h2>\n<ul>\n<li class=\"p20-b\"><strong>\u4e3b\u306a\u6a5f\u80fd<\/strong>:<br \/>Lazy Loading \u306e\u4e3b\u306a\u76ee\u7684\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30d3\u30e5\u30fc\u30dd\u30fc\u30c8\u306b\u5165\u308b\u307e\u3067\u30ea\u30bd\u30fc\u30b9\u306e\u8aad\u307f\u8fbc\u307f\u3092\u9045\u3089\u305b\u308b\u3053\u3068\u306b\u3088\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a\u3067\u3042\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3068\u30d0\u30c3\u30c6\u30ea\u30fc\u6d88\u8cbb\u304c\u7bc0\u7d04\u3055\u308c\u308b\u3002\u7279\u306b\u9577\u3044\u30da\u30fc\u30b8\u3067\u6709\u76ca\u3060\u304c\u3001\u307b\u307c\u3059\u3079\u3066\u306e\u30da\u30fc\u30b8\u3067\u5f79\u7acb\u3064\u3002<\/li>\n<li><strong>\u30b3\u30a2\u30a6\u30a7\u30d6\u30d0\u30a4\u30bf\u30eb\u3092\u901a\u3058\u305f SEO \u3078\u306e\u5f71\u97ff<\/strong>:<br \/> Lazy Loading \u306e\u4e3b\u306a SEO \u52b9\u679c\u306f\u3001\u30b3\u30a2\u30a6\u30a7\u30d6\u30d0\u30a4\u30bf\u30eb\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6539\u5584\u3067\u3042\u308b\u3002\u7279\u306b\u3001\u30da\u30fc\u30b8\u8aad\u307f\u8fbc\u307f\u6642\u306b\u5373\u5ea7\u306b\u8868\u793a\u3055\u308c\u308b\u9818\u57df\uff08\u30d5\u30a1\u30fc\u30b9\u30c8\u30d3\u30e5\u30fc\uff09\u306e\u753b\u50cf\u306b\u8aa4\u3063\u3066 Lazy Loading \u3092\u9069\u7528\u3059\u308b\u3068\u3001Largest Contentful Paint (LCP) \u306e\u30b9\u30b3\u30a2\u306b\u60aa\u5f71\u97ff\u3092\u53ca\u307c\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/li>\n<li class=\"p20-b p20-t\"><strong>\u30cd\u30a4\u30c6\u30a3\u30d6\u5b9f\u88c5\u3068\u30ab\u30b9\u30bf\u30e0\u5b9f\u88c5<\/strong>:<br \/>\u6700\u8fd1\u306e\u30d6\u30e9\u30a6\u30b6\u306f\u3001\u753b\u50cf\u3084 iframe \u306b\u5bfe\u3057\u3066\u30cd\u30a4\u30c6\u30a3\u30d6\u306e <code>loading=\"lazy\"<\/code> \u5c5e\u6027\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u304a\u308a\u3001\u3053\u308c\u304c\u6700\u3082\u30b7\u30f3\u30d7\u30eb\u306a\u65b9\u6cd5\u3067\u3042\u308b\u3002\u3057\u304b\u3057\u3001\u4f4e\u89e3\u50cf\u5ea6\u306e\u30d7\u30ec\u30d3\u30e5\u30fc\u3092\u8aad\u307f\u8fbc\u3093\u3060\u308a\u3001\u52d5\u753b\u3084\u30b3\u30e1\u30f3\u30c8\u3068\u3044\u3063\u305f\u4ed6\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\u3057\u305f\u308a\u3059\u308b\u306a\u3069\u3001\u3088\u308a\u9ad8\u5ea6\u306a\u6a5f\u80fd\u306e\u305f\u3081\u306b\u306f\u4f9d\u7136\u3068\u3057\u3066\u30ab\u30b9\u30bf\u30e0 JavaScript \u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u3002<\/li>\n<li><strong>\u30ab\u30b9\u30bf\u30e0\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u3088\u308b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u767b\u9332\u306e\u30ea\u30b9\u30af<\/strong>:<br \/>\u30cd\u30a4\u30c6\u30a3\u30d6\u306e Lazy Loading \u304c\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u767b\u9332\u306b\u4e0e\u3048\u308b\u5f71\u97ff\u306f\u6700\u5c0f\u9650\u3067\u3042\u308b\u304c\u3001\u30ab\u30b9\u30bf\u30e0 JavaScript \u306e\u5b9f\u88c5\u306f\u554f\u984c\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u753b\u50cf\u306e URL \u3092\u9069\u5207\u306a <code>src<\/code> \u5c5e\u6027\u306b\u914d\u7f6e\u3067\u304d\u306a\u304b\u3063\u305f\u5834\u5408\u3001Googlebot \u304c\u305d\u306e\u753b\u50cf\u3092\u898b\u3064\u3051\u3066\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u767b\u9332\u3067\u304d\u306a\u3044\u3053\u3068\u304c\u3042\u308b\u3002<\/li>\n<li class=\"p20-b p20-t\"><strong>\u5b9f\u88c5\u306e\u78ba\u8a8d\u65b9\u6cd5<\/strong>:<br \/> Lazy Loading \u304c SEO \u306b\u5bfe\u3057\u3066\u6b63\u3057\u304f\u6a5f\u80fd\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3001Google Search Console \u306e URL \u691c\u67fb\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3059\u308b\u3002\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3055\u308c\u305f HTML \u3092\u30ec\u30d3\u30e5\u30fc\u3057\u3001\u3059\u3079\u3066\u306e\u753b\u50cf\u304c <code>&lt;img&gt;<\/code> \u30bf\u30b0\u306e <code>src<\/code> \u5c5e\u6027\u306bURL\u4ed8\u304d\u3067\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u304b\u3001\u307e\u305f\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\u3055\u308c\u305f\u4ed6\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u5b8c\u5168\u306b\u8aad\u307f\u8fbc\u307e\u308c\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/li>\n<li><strong>\u30d5\u30a1\u30fc\u30b9\u30c8\u30d3\u30e5\u30fc\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/strong>:<br \/>\u30d2\u30fc\u30ed\u30fc\u753b\u50cf\u306a\u3069\u3001\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u6642\u306b\u5373\u5ea7\u306b\u8868\u793a\u3055\u308c\u308b\u753b\u50cf\u306b\u306f Lazy Loading \u3092\u9069\u7528\u3059\u3079\u304d\u3067\u306f\u306a\u3044\u3002\u3053\u308c\u3092\u884c\u3046\u3068\u3001\u30d6\u30e9\u30a6\u30b6\u306b\u91cd\u8981\u306a\u8996\u899a\u8981\u7d20\u306e\u8aad\u307f\u8fbc\u307f\u3092\u4e0d\u5fc5\u8981\u306b\u9045\u3089\u305b\u308b\u3088\u3046\u6307\u793a\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u3001LCP \u3068\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3092\u640d\u306a\u3046\u3002<\/li>\n<li class=\"p20-b p20-t\"><strong> Lazy Loading \u3068\u52d5\u753b<\/strong>:<br \/>\u30ea\u30bd\u30fc\u30b9\u3092\u5927\u91cf\u306b\u6d88\u8cbb\u3059\u308b\u52d5\u753b\u306f\u3001 Lazy Loading \u306e\u826f\u3044\u5019\u88dc\u3067\u3042\u308b\u3002\u4e00\u822c\u7684\u306a\u624b\u6cd5\u3068\u3057\u3066\u3001\u307e\u305a\u30dd\u30b9\u30bf\u30fc\u753b\u50cf\uff08\u30b5\u30e0\u30cd\u30a4\u30eb\u753b\u50cf\uff09\u3092\u8868\u793a\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u305d\u306e\u5834\u6240\u307e\u3067\u30b9\u30af\u30ed\u30fc\u30eb\u3059\u308b\u304b\u518d\u751f\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u305f\u3068\u304d\u306b\u306e\u307f\u5b8c\u5168\u306a\u52d5\u753b\u3092\u8aad\u307f\u8fbc\u3080\u3088\u3046\u306b\u3059\u308b\u3002<\/li>\n<li><strong>\u7121\u9650\u30b9\u30af\u30ed\u30fc\u30eb\u3068 Lazy Loading<\/strong>:<br \/>\u7121\u9650\u30b9\u30af\u30ed\u30fc\u30eb\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30da\u30fc\u30b8\u3092\u4e0b\u306b\u30b9\u30af\u30ed\u30fc\u30eb\u3059\u308b\u306b\u3064\u308c\u3066\u65b0\u3057\u3044\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u9806\u6b21\u8aad\u307f\u8fbc\u3080\u95a2\u9023\u6280\u8853\u3067\u3042\u308b\u3002\u3053\u308c\u306f\u3001\u5168\u304f\u65b0\u3057\u3044\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u8aad\u307f\u8fbc\u3080\u306e\u3067\u306f\u306a\u304f\u3001\u901a\u5e38\u306f\u540c\u3058\u30da\u30fc\u30b8\u5185\u306e\u91cd\u8981\u3067\u306a\u3044\u90e8\u5206\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u9045\u5ef6\u3055\u305b\u308b Lazy Loading \u3068\u306f\u7570\u306a\u308b\u3002<\/li>\n<li class=\"p20-t\"><strong>\u88c5\u98fe\u7528\u306e\u753b\u50cf<\/strong>:<br \/>\u30a2\u30a4\u30b3\u30f3\u3084\u30ab\u30b9\u30bf\u30e0\u306e\u7b87\u6761\u66f8\u304d\u30de\u30fc\u30af\u306a\u3069\u3001\u5c0f\u3055\u306a\u88c5\u98fe\u753b\u50cf\u306f\u3001\u4e00\u822c\u7684\u306b <code>&lt;img&gt;<\/code> \u30bf\u30b0\u3067\u306f\u306a\u304f CSS \u3067\u51e6\u7406\u3059\u3079\u304d\u3067\u3042\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4e3b\u8981\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u3068\u610f\u5473\u7684\u306b\u533a\u5225\u3055\u308c\u3001CSS \u7d4c\u7531\u3067\u8aad\u307f\u8fbc\u307e\u308c\u305f\u753b\u50cf\u306f\u901a\u5e38\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u767b\u9332\u3055\u308c\u306a\u3044\u3002<\/li>\n<\/ul>\n<p class=\"p60-t\">\u4ee5\u4e0a\u3067\u3059\u3002<\/p>\n<p>LCP \u306b\u8a72\u5f53\u3059\u308b\u753b\u50cf\u3084\u30d5\u30a1\u30fc\u30b9\u30c8\u30d3\u30e5\u30fc\u306f\u7d20\u65e9\u304f\u8aad\u307f\u8fbc\u307e\u308c\u308b\u3079\u304d\u306a\u306e\u306b Lazy Loading \u3092\u8a2d\u5b9a\u3059\u308b\u3068\u304b\u3048\u3063\u3066\u901f\u5ea6\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u4f4e\u4e0b\u3055\u305b\u3066\u3057\u307e\u3046\u3053\u3068\u306b\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<br \/>\u307e\u305f\u3001\u88c5\u98fe\u7528\u306e \u753b\u50cf\u306b\u3082 Lazy Loading \u306f\u4f7f\u3046\u5fc5\u8981\u306f\u306a\u304f\u3001CSS \u3067\u8aad\u307f\u8fbc\u307e\u305b\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Search Off the Record \u30dd\u30c3\u30c9\u30ad\u30e3\u30b9\u30c8\u306e\u30a8\u30d4\u30bd\u30fc\u30c9 98 \u3067\u306f\u3001\u30b8\u30e7\u30f3\u3068\u30de\u30fc\u30c6\u30a3\u30f3\u304c Lazy Loading \u3092\u30c6\u30fc\u30de\u306b\u30c7\u30a3\u30b9\u30ab\u30c3\u30b7\u30e7\u30f3\u3057\u305f\u3002<\/p>\n","protected":false},"author":1,"featured_media":15397,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,758],"tags":[1225,1657],"class_list":["post-15396","post","type-post","status-publish","format-standard","has-post-thumbnail","category-google-seo","category-site-design-and-conversion","tag-lazy-load","tag-native-lazy-loading"],"_links":{"self":[{"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/posts\/15396","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=15396"}],"version-history":[{"count":0,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/posts\/15396\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/media\/15397"}],"wp:attachment":[{"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/media?parent=15396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/categories?post=15396"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/tags?post=15396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}