{"id":9991,"date":"2019-06-11T06:15:37","date_gmt":"2019-06-10T21:15:37","guid":{"rendered":"https:\/\/www.suzukikenichi.com\/blog\/?p=9991"},"modified":"2019-06-11T06:08:17","modified_gmt":"2019-06-10T21:08:17","slug":"why-does-intersectionobserver-work-for-lazy-loading-though-googlebot-doesnt-scroll","status":"publish","type":"post","link":"https:\/\/www.suzukikenichi.com\/blog\/why-does-intersectionobserver-work-for-lazy-loading-though-googlebot-doesnt-scroll\/","title":{"rendered":"Googlebot\u306f\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u306a\u3044\u306e\u306b\u3069\u3046\u3057\u3066lazy-load\u753b\u50cf\u3092IntersectionObserver\u3067\u8a8d\u8b58\u3067\u304d\u308b\u306e\u304b\uff1f"},"content":{"rendered":"<p class=\"p20-b al-r small\">[\u30ec\u30d9\u30eb: \u4e0a\u7d1a]<\/p>\n<p><a href=\"https:\/\/www.suzukikenichi.com\/blog\/googlebots-rendering-engine-updated\/\">Googlebot \u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30a8\u30f3\u30b8\u30f3 (WRS: Web Rendering Service) \u304c\u66f4\u65b0<\/a>\u3055\u308c\u308b\u3068\u3044\u3046\u3001\u304a\u304a\u3044\u306b\u6b53\u8fce\u3055\u308c\u308b\u30cb\u30e5\u30fc\u30b9\u304c\u5148\u6708\u767a\u8868\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<p>\u65b0\u3057\u3044\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30a8\u30f3\u30b8\u30f3\u306f\u3001<a href=\"https:\/\/developers.google.com\/web\/updates\/2016\/04\/intersectionobserver\"><code>IntersectionObserver<\/code> API<\/a> \u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u3053\u306e <code>IntersectionObserver<\/code> \u306e\u30b5\u30dd\u30fc\u30c8\u306b\u95a2\u3057\u3066\u3001\u300c\u3042\u3041\u3001\u305d\u3046\u601d\u3046\u306e\u3082\u7121\u7406\u306a\u3044\u3088\u306d\u300d\u3068\u3044\u3046\u8cea\u554f\u3092\u3044\u305f\u3060\u304d\u307e\u3057\u305f\u3002<br \/>\u540c\u3058\u7591\u554f\u3092\u3044\u3060\u3044\u3066\u3044\u308b\u4eba\u3082\u304d\u3063\u3068\u3044\u308b\u306f\u305a\u3067\u3059\u3002\uff08\u5b9f\u969b\u306b\u3001\u50d5\u3082\u305d\u306e\u3046\u3061\u306e 1 \u4eba\u3002\u3082\u3063\u3068\u3082\u3001\u3059\u3050\u306b\u81ea\u5df1\u89e3\u6c7a\u3067\u304d\u305f\u3051\u308c\u3069\uff09\u3002<\/p>\n<p class=\"p60-b\">\u305d\u3053\u3067\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u65b0\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30a8\u30f3\u30b8\u30f3\u306e <code>IntersectionObserver<\/code> \u30b5\u30dd\u30fc\u30c8\u306b\u3064\u3044\u3066\u3042\u308a\u304c\u3061\u306a\u3001\u3067\u3082\u3082\u3063\u3068\u3082\u306a\u8aa4\u89e3\u3092\u89e3\u304d\u307e\u3059\u3002<\/p>\n<h2>IntersectionObserver \u3067 lazy-load \u753b\u50cf\u3092\u53d6\u5f97\u53ef\u80fd\u306b<\/h2>\n<p>\u5192\u982d\u3067\u89e6\u308c\u305f\u3088\u3046\u306b\u3001\u65b0\u3057\u3044\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30a8\u30f3\u30b8\u30f3\u306f <code>IntersectionObserver<\/code> \u3092\u30b5\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002<br \/>IntersectionObserver \u306f<a href=\"https:\/\/developers.google.com\/search\/docs\/guides\/lazy-loading\">\u753b\u50cf\u3092 lazy-load \u3067\u9045\u5ef6\u8aad\u307f\u8fbc\u3055\u305b\u308b\u969b\u306b Google \u691c\u7d22\u3067\u63a8\u5968\u3055\u308c\u308b\u6280\u8853<\/a>\u3067\u3059\u3002<\/p>\n<p><code>IntersectionObserver<\/code> \u3092\u5b9f\u88c5\u3059\u308b\u3068\u3001\u30da\u30fc\u30b8\u3092\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u3066\u753b\u50cf\u304c\u898b\u3048\u308b\u7bc4\u56f2\u306b\u5165\u3063\u305f\u3068\u304d\u306b\uff08\u8fd1\u3065\u3044\u305f\u3068\u304d\u306b\uff09\u521d\u3081\u3066\u3001\u305d\u306e\u753b\u50cf\u306e\u8aad\u307f\u8fbc\u307f\u3092\u958b\u59cb\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3057\u304b\u3057\u306a\u304c\u3089 <code>IntersectionObserver<\/code> \u3092\u4f7f\u3063\u3066 lazy-load \u3057\u3066\u3044\u3066\u3082\u3001\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u4ee5\u524d\u306f Googlebot \u306f <code>IntersectionObserver<\/code> \u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u305b\u3093\u3067\u3057\u305f\u3002<br \/>\u305d\u306e\u305f\u3081\u305d\u308c\u3092\u88dc\u3046\u4ed5\u7d44\u307f\u3068\u3057\u3066 <a href=\"https:\/\/github.com\/w3c\/IntersectionObserver\/tree\/master\/polyfill\">polifil<\/a> \u306e\u5b9f\u88c5\u304c\u7d50\u5c40\u306f\u5fc5\u8981\u3067\u3057\u305f\uff08polifil \u306f\u305d\u306e\u4ed5\u7d44\u307f\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u306a\u3044\u30d6\u30e9\u30a6\u30b6\u306e\u305f\u3081\u306e\u4e88\u5099\u7684\u306a\u4ed5\u7d44\u307f\uff09\u3002<\/p>\n<p class=\"p40-b\">\u3067\u3059\u304c\u3001<code>IntersectionObserver<\/code> \u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u4eca\u306f polifil \u306a\u3057\u3067 Googlebot \u306f lazy-load \u753b\u50cf\u3092\u53d6\u5f97\u53ef\u80fd\u3067\u3059\uff08\u305f\u3060\u3057\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30d7\u30e9\u30f3\u3068\u3057\u3066 polifil \u3092\u5b9f\u88c5\u3059\u308c\u3070\u5b89\u5fc3\u5ea6\u304c\u5897\u3059\uff09\u3002<\/p>\n<h2 id=\"scroll\">Googlebot \u306f\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u306a\u3044\u306f\u305a\u3067\u306f\uff1f<\/h2>\n<p>\uff08\u77e5\u3063\u3066\u304a\u304f\u306e\u304c\u5f53\u7136\u3068\u3044\u3046\u9858\u3044\u3092\u8fbc\u3081\u3066\uff09\u3054\u5b58\u77e5\u306e\u3088\u3046\u306b\u3001Googlebot \u306f\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u307e\u305b\u3093\u3002<br \/>\u3068\u3044\u3046\u3053\u3068\u306f\u3001<\/p>\n<blockquote><p>\u305f\u3068\u3048 IntersectionObserver \u3092\u30b5\u30dd\u30fc\u30c8\u3057\u305f\u3068\u3057\u3066\u3082\u3001\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u306a\u3044\u306e\u3067\u3042\u308c\u3070\u898b\u3048\u3066\u3044\u308b\u30b9\u30af\u30ea\u30fc\u30f3\u3088\u308a\u3082\u4e0b\u306e\u30a8\u30ea\u30a2\u306b\u96a0\u308c\u3066\u3044\u308b\u753b\u50cf\u3092 Googlebot \u306f\u8a8d\u8b58\u3067\u304d\u306a\u3044\u306e\u3067\u306f\u306a\u3044\u304b\uff1f \u3058\u3083\u3001\u610f\u5473\u306a\u3044\u3058\u3083\u3093\u3002<\/p><\/blockquote>\n<p class=\"p30-t\">\u3053\u3093\u306a\u7591\u554f\u304c\u6d6e\u304b\u3093\u3060\u4eba\u306f\u3044\u306a\u3044\u3067\u3057\u3087\u3046\u304b\uff1f\u3002<\/p>\n<p>\u305f\u3057\u304b\u306b Googlebot \u306f\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u307e\u305b\u3093\u3002<br \/>\u3057\u304b\u3057\u3001<code>IntersectionObserver<\/code> \u306b\u30b9\u30af\u30ed\u30fc\u30eb\u306f\u5fc5\u8981\u3042\u308a\u307e\u305b\u3093\u3002<br \/><code>IntersectionObserver<\/code> \u306f\u30b9\u30af\u30ed\u30fc\u30eb\u3092\u76e3\u8996\u3059\u308b API \u3067\u306f\u306a\u3044\u306e\u3067\u3059\u3002<\/p>\n<p>\u753b\u50cf\u306e lazy-load \u306e\u72b6\u6cc1\u306b\u9650\u3063\u3066\u8a00\u3048\u3070\u3001<code>IntersectionObserver<\/code> \u306f\u753b\u50cf\u304c Viewport \uff08\u30b9\u30af\u30ea\u30fc\u30f3\u306b\u898b\u3048\u3066\u3044\u308b\u90e8\u5206\uff09\u306b\u5165\u3063\u305f\u304b\u3069\u3046\u304b\u3092\u76e3\u8996\u3059\u308b API \u3067\u3059\u3002<br \/>\u203b \u3068\u3066\u3082\u7c21\u6f54\u306b\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\uff08\u3053\u308c\u3082\u3001\u77e5\u3063\u3066\u304a\u304f\u306e\u304c\u5f53\u7136\u3068\u3044\u3046\u9858\u3044\u3092\u8fbc\u3081\u3066\uff09Googlebot \u306f\u30da\u30fc\u30b8\u3092 1 \u3064\u306e &#8220;\u584a&#8221; \u3068\u3057\u3066\u53d6\u5f97\u3057\u307e\u3059\u3002<br \/>\u50d5\u305f\u3061\u4eba\u9593\u306e\u30e6\u30fc\u30b6\u30fc\u306e\u3088\u3046\u306b\u3001\u30b9\u30af\u30ea\u30fc\u30f3\u306b\u6620\u3063\u3066\u3044\u308b\u30a8\u30ea\u30a2\u3060\u3051\u3092\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u306a\u304c\u3089\u90e8\u5206\u7684\u306b\u898b\u3066\u3044\u304f\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u306a\u304c\u301c\u3044\u30da\u30fc\u30b8\u3082\u4e00\u6c17\u306b\u898b\u307e\u3059\u3002<br \/>\u3064\u307e\u308a Viewport \u304c\u975e\u5e38\u306b\u9577\u3044\u306e\u3067\u3059\u3002<\/p>\n<p>Viewport \u306b\u753b\u50cf\u304c\u5165\u3063\u3066\u3044\u308c\u3070\u3001<code>IntersectionObserver<\/code> \u306f\u305d\u308c\u3092\u691c\u51fa\u3057\u307e\u3059\u3002<br \/>\u3057\u305f\u304c\u3063\u3066 lazy-load \u3057\u305f\u753b\u50cf\u3092\u8aad\u307f\u8fbc\u307f\u307e\u3059\uff08\u3088\u3046\u306f\u3001Googlebot \u306f\u5b9f\u969b\u306b\u306f\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\u3057\u3066\u306a\u3044\u3063\u3066\u3053\u3068\u3067\u3059\u306d\uff09\u3002<\/p>\n<p class=\"p30-b\">\u305d\u3093\u306a\u308f\u3051\u3067\u3001\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u306a\u3044 Googlebot \u3067\u3042\u3063\u3066\u3082 <code>IntersectionObserver<\/code> \u3067\u8aad\u307f\u8fbc\u307e\u305b\u308b lazy-load \u753b\u50cf\u3092\u304d\u3061\u3093\u3068\u53d6\u5f97\u3067\u304d\u308b\u306e\u3067\u3059\u3002;\uff09<\/p>\n<p>P.S.<br \/>\nGooglebot \u306f Viewport \u304c\u9577\u3044\u3068\u8aac\u660e\u3057\u307e\u3057\u305f\u304c\u3001\u3069\u306e\u304f\u3089\u3044\u306e\u9577\u3055\u306a\u306e\u304b\u304c\u6c17\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\u7121\u9650\u306b\u9577\u3044\u3053\u3068\u306f\u306a\u3044\u306f\u305a\u3067\u3001\u672c\u5f53\u306b\u3082\u306e\u3059\u3054\u304f\u9577\u3044\u30da\u30fc\u30b8\u3060\u3068 <code>IntersectionObserver<\/code> \u3067\u691c\u51fa\u3067\u304d\u306a\u3044\u753b\u50cf\u304c\u3042\u308a\u5f97\u305d\u3046\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Googlebot \u306e\u65b0\u3057\u3044\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30a8\u30f3\u30b8\u30f3\u306f\u3001IntersectionObserver API \u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u65b0\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30a8\u30f3\u30b8\u30f3\u306e IntersectionObserver \u30b5\u30dd\u30fc\u30c8\u306b\u3064\u3044\u3066\u3042\u308a\u304c\u3061\u306a\u3001\u3067\u3082\u3082\u3063\u3068\u3082\u306a\u8aa4\u89e3\u3092\u89e3\u304f\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1225],"class_list":["post-9991","post","type-post","status-publish","format-standard","category-google-seo","tag-lazy-load"],"_links":{"self":[{"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/posts\/9991","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=9991"}],"version-history":[{"count":0,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/posts\/9991\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/media?parent=9991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/categories?post=9991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/tags?post=9991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}