{"id":2025,"date":"2019-10-08T10:00:43","date_gmt":"2019-10-08T01:00:43","guid":{"rendered":"http:\/\/domore.co.jp\/speedcurve\/?p=2025"},"modified":"2022-09-12T16:09:34","modified_gmt":"2022-09-12T07:09:34","slug":"advantages-of-loading-scripts-a-synchronously","status":"publish","type":"post","link":"https:\/\/www.domore.co.jp\/speedcurve\/synthetic\/advantages-of-loading-scripts-a-synchronously\/","title":{"rendered":"\u975e\u540c\u671f\u3067\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u8aad\u307f\u8fbc\u3080\u30e1\u30ea\u30c3\u30c8\u3068\u306f\uff1f"},"content":{"rendered":"<p><span style=\"font-weight: 400;\"><img loading=\"lazy\" class=\"wp-image-1979 alignnone\" src=\"http:\/\/domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/steve-souders.424-2.jpg\" alt=\"\" width=\"45\" height=\"45\" srcset=\"https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/steve-souders.424-2.jpg 577w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/steve-souders.424-2-150x150.jpg 150w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/steve-souders.424-2-300x300.jpg 300w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/steve-souders.424-2-60x60.jpg 60w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/steve-souders.424-2-120x120.jpg 120w\" sizes=\"(max-width: 45px) 100vw, 45px\" \/>\u3000Steve Souders<\/span><\/p>\n<p><span style=\"font-weight: 400;\">2018\u5e7412\u670820\u65e5\u6728\u66dc\u65e5<\/span><span style=\"font-weight: 400;\">\u3000<\/span><\/p>\n<p><span style=\"font-weight: 400;\"><strong>\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u975e\u540c\u671f\u3067\u30ed\u30fc\u30c9\u3059\u308b\u3053\u3068\u306e\u91cd\u8981\u6027<\/strong>\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a\u7b56\u3092\u5897\u3084\u3059\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u30012007\u5e74\u306b\u59cb\u307e\u3063\u305f\u975e\u540c\u671f\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u30ed\u30fc\u30c9\u306e\u9032\u5316\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002Internet Explorer7\u3067\u306f\u300114\u500b\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u30ed\u30fc\u30c9\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3057\u305f\u3002<\/span><\/p>\n<p><img loading=\"lazy\" class=\"aligncenter size-full wp-image-2026\" src=\"http:\/\/domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/ie7-waterfall.jpg\" alt=\"\" width=\"624\" height=\"256\" srcset=\"https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/ie7-waterfall.jpg 624w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/ie7-waterfall-300x123.jpg 300w\" sizes=\"(max-width: 624px) 100vw, 624px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\u5404\u30b9\u30af\u30ea\u30d7\u30c8\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u5148\u982d\u306b\u8d64\u3044\u77e2\u5370\u3092\u8ffd\u52a0\u3057\u307e\u3057\u305f\u3002\u3053\u3053\u3067\u308f\u304b\u308b\u306e\u306f\u3001HTML\u30d1\u30fc\u30b5\u30fc\u306f\u30b9\u30af\u30ea\u30d7\u30c8\u30bf\u30b0\u3092\u691c\u51fa\u3059\u308b\u3068\u3001\u305d\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3055\u308c\u3001\u69cb\u6587\u89e3\u6790\u3055\u308c\u3001\u5b9f\u884c\u3055\u308c\u308b\u307e\u3067\u505c\u6b62\u3059\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002HTML\u30d1\u30fc\u30b5\u30fc\u304c\u505c\u6b62\u3057\u305f\u305f\u3081\u3001\u3059\u3079\u3066\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3082\u505c\u6b62\u3057\u307e\u3057\u305f(HTTP\u8981\u6c42\u3092\u958b\u59cb\u3059\u308b\u305f\u3081\u306e\u89e3\u6790HTML\u30bf\u30b0\u304c\u4ed6\u306b\u306a\u3044\u305f\u3081)\u3002\u3053\u308c\u3092\u884c\u3063\u305f\u306e\u306fIE7\u3060\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/span><\/p>\n<h3><strong>\u30d7\u30ea\u30ed\u30fc\u30c0\u30fc\u306e\u958b\u59cb<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u6307\u5b9a\u3055\u308c\u305f\u9806\u5e8f\u3067\u5b9f\u884c\u3055\u308c\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u5b9f\u884c\u30c7\u30a4\u30b8\u30fc\u30fb\u30c1\u30a7\u30fc\u30f3\u304c\u3088\u308a\u901f\u304f\u79fb\u52d5\u3059\u308b\u3088\u3046\u306b\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u4e26\u884c\u3057\u3066\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3067\u304d\u306a\u3044\u7406\u7531\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u3001\u30d6\u30e9\u30a6\u30b6\u30fc\u306f<\/span><a href=\"https:\/\/www.stevesouders.com\/blog\/2013\/11\/07\/prebrowsing\/\"><span style=\"font-weight: 400;\">\u30d7\u30ea\u30ed\u30fc\u30c0\u30fc<\/span><\/a><span style=\"font-weight: 400;\">\u3068\u547c\u3070\u308c\u308b\u8efd\u91cf\u30d1\u30fc\u30b5\u30fc\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u30d7\u30ea\u30ed\u30fc\u30c0\u30fc(\u63a8\u6e2c\u307e\u305f\u306f\u5148\u8aad\u307f\u30d1\u30fc\u30b5\u30fc)\u306f\u3001HTML\u3092\u30b9\u30ad\u30c3\u30d7\u3057\u3066\u3001SCRIPT\u3001LINK\u3001IMG\u306a\u3069\u306eHTTP\u8981\u6c42\u3092\u958b\u59cb\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u30bf\u30b0\u3092\u63a2\u3057\u307e\u3059\u3002\u30d7\u30ea\u30ed\u30fc\u30c0\u30fc\u306f\u3001HTML\u30d1\u30fc\u30b5\u30fc\u304c\u3001\u5bfe\u5fdc\u3059\u308bDOM\u8981\u7d20\u3092\u4f5c\u6210\u3057\u305f\u3068\u304d\u306b\u5fdc\u7b54\u6e96\u5099\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308b\u3088\u3046\u306b\u3001\u3053\u308c\u3089\u306e\u8981\u6c42\u306b\u512a\u5148\u9806\u4f4d\u3092\u4ed8\u3051\u3066\u958b\u59cb\u3057\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u3053\u306e\u30b5\u30a4\u30c8\u306b\u306f15\u306e\u540c\u671f\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u3042\u308a\u307e\u3059(\u4e3b\u306b<\/span><span style=\"font-weight: 400;\">turner.com<\/span><span style=\"font-weight: 400;\">)\u3002IE7\u306e\u3088\u3046\u306b\u30011\u5ea6\u306b1\u3064\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u306e\u306b6\u79d2\u304b\u304b\u308b\u4ee3\u308f\u308a\u306b\u3001\u30d7\u30ea\u30ed\u30fc\u30c0\u30fc\u306f\u3001\u3053\u308c\u3089\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u6700\u59271.2\u79d2\u3067\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u4e8b\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u203b\u30a6\u30a9\u30fc\u30bf\u30fc\u30d5\u30a9\u30fc\u30eb\u30c1\u30e3\u30fc\u30c8\u306e\u6ce8\u610f:\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30d5\u30a3\u30eb\u30e0\u30b9\u30c8\u30ea\u30c3\u30d7\u306f\u4e0a\u90e8\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u306eCPU\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u306f\u3001\u30a6\u30a9\u30fc\u30bf\u30fc\u30d5\u30a9\u30fc\u30eb\u306e\u4e0b\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u30aa\u30ec\u30f3\u30b8\u8272\u3067\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u540c\u671f\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u8d64\u306e\u30cf\u30c3\u30b7\u30e5\u30fb\u30d1\u30bf\u30fc\u30f3\u3067\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u5404\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u53f3\u5074\u306e\u8d64\u3068\u7dd1\u306e\u30d0\u30fc\u306f\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u304cCPU\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3068\u304d\u3067\u3059\u3002\u5404\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u5408\u8a08CPU\u30bf\u30a4\u30e0\u306f\u3001URL\u306e\u5f8c\u306e\u30ab\u30c3\u30b3\u5185\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/span><\/p>\n<p><img loading=\"lazy\" class=\"aligncenter size-full wp-image-2027\" src=\"http:\/\/domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/turner-com-waterfall3.jpg\" alt=\"\" width=\"844\" height=\"767\" srcset=\"https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/turner-com-waterfall3.jpg 844w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/turner-com-waterfall3-300x273.jpg 300w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/turner-com-waterfall3-768x698.jpg 768w\" sizes=\"(max-width: 844px) 100vw, 844px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\u30d7\u30ea\u30ed\u30fc\u30c0\u30fc\u306f\u3001\u3053\u308c\u307e\u3067\u306b\u4f5c\u6210\u3055\u308c\u305f\u30d6\u30e9\u30a6\u30b6\u306e\u4e2d\u3067\u6700\u3082\u91cd\u8981\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6539\u5584\u3067\u3059\u3002IE8\u306f\u30012009\u5e74\u306b\u30d7\u30ea\u30ed\u30fc\u30c0\u30fc\u3092\u5099\u3048\u305f\u6700\u521d\u306e\u30d6\u30e9\u30a6\u30b6\u3067\u3042\u308a\u3001\u4ed6\u306e\u4e3b\u8981\u306a\u30d6\u30e9\u30a6\u30b6\u306e\u307b\u3068\u3093\u3069\u306f\u3001\u5e74\u5185\u306b\u305d\u308c\u306b\u7d9a\u304d\u307e\u3057\u305f\u3002<\/span><img loading=\"lazy\" class=\"aligncenter size-large wp-image-2028\" src=\"http:\/\/domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/preloader-timeline-1024x436.jpg\" alt=\"\" width=\"1024\" height=\"436\" srcset=\"https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/preloader-timeline-1024x436.jpg 1024w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/preloader-timeline-300x128.jpg 300w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/preloader-timeline-768x327.jpg 768w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/preloader-timeline.jpg 1166w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\u30d7\u30ea\u30ed\u30fc\u30c0\u30fc\u306fWeb\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5287\u7684\u306b\u6539\u5584\u3057\u307e\u3057\u305f\u304c\u3001\u4e07\u80fd\u85ac\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u524d\u306e\u30a6\u30a9\u30fc\u30bf\u30fc\u30d5\u30a9\u30fc\u30eb\u3092\u898b\u308b\u3068\u3001\u6b21\u306e\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u3002<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u3059\u3079\u3066\u306e\u540c\u671f\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3001\u89e3\u6790\u3001\u304a\u3088\u3073\u5b9f\u884c\u3055\u308c\u308b\u307e\u3067\u3001\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306f\u30d6\u30ed\u30c3\u30af\u3055\u308c\u307e\u3059\u3002 \u975e\u540c\u671f\u3067\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u305f\u5834\u5408\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u304c\u901f\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">2\u756a\u76ee\u306e\u30b9\u30af\u30ea\u30d7\u30c8jquery.js\u306f\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u306b\u6642\u9593\u304c\u304b\u304b\u308a\u307e\u3059\u3002\u3053\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u540c\u671f\u7684\u306b\u30ed\u30fc\u30c9\u3055\u308c\u308b\u305f\u3081\u3001\u5f8c\u7d9a\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u306fjquery.js\u306e\u524d\u306b\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3092\u7d42\u4e86\u3057\u3066\u3082\u3001\u5b9f\u884c\u3055\u308c\u308b\u307e\u3067\u5f85\u6a5f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u30d6\u30e9\u30a6\u30b6\u306eCPU\u306f\u6700\u521d\u306e1,2\u79d2\u9593\u306f\u30a2\u30a4\u30c9\u30eb\u72b6\u614b\u306b\u306a\u308a\u3001\u3059\u3079\u3066\u306eJS\u3068\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u767a\u751f\u3059\u308b\u3068\u56fa\u5b9a\u3055\u308c\u307e\u3059\u3002\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u975e\u540c\u671f\u306b\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3055\u308c\u305f\u5834\u5408\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u89e3\u6790\u3055\u308c\u3001\u5230\u7740\u3059\u308b\u3068\u3059\u3050\u306b\u5b9f\u884c\u3057\u3001CPU\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u304c\u5206\u6563\u3055\u308c\u308b\u305f\u3081\u3001CPU\u306e\u30d6\u30ed\u30c3\u30af\u304c\u56de\u907f\u3055\u308c\u307e\u3059\u3002<\/span><\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u30d7\u30ea\u30ed\u30fc\u30c0\u30fc\u306f\u3001\u540c\u671f\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u30a4\u30e1\u30fc\u30b8\u3088\u308a\u3082\u9ad8\u3044\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u512a\u5148\u9806\u4f4d\u3092\u4e0e\u3048\u307e\u3059\u3002\u540c\u671f\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u306b\u306f\u6642\u9593\u304c\u304b\u304b\u308b\u305f\u3081\u3001\u30a4\u30e1\u30fc\u30b8\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u30d6\u30ed\u30c3\u30af\u3055\u308c\u3001\u6700\u521d\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306b\u306f\u30c6\u30ad\u30b9\u30c8\u306e\u307f\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u975e\u540c\u671f\u3067\u30ed\u30fc\u30c9\u3055\u308c\u308b\u3068\u3001\u30a4\u30e1\u30fc\u30b8\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u304c\u65e9\u304f\u306a\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">\u6700\u5f8c\u306b:\u975e\u540c\u671f<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u524d\u306e\u30a6\u30a9\u30fc\u30bf\u30fc\u30d5\u30a9\u30fc\u30eb\u3092\u898b\u308b\u3068\u3001\u30d7\u30ea\u30ed\u30fc\u30c0\u30fc\u306b\u3088\u3063\u3066\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u304c\u5927\u5e45\u306b\u5411\u4e0a\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u3059\u3079\u3066\u306e\u554f\u984c\u304c\u89e3\u6c7a\u3057\u305f\u308f\u3051\u3067\u306f\u306a\u3044\u3002\u3053\u306e\u30da\u30fc\u30b8\u306b\u306f15\u306e\u540c\u671f\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u3042\u308a\u3001\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u30d6\u30ed\u30c3\u30af\u3057\u3001CPU\u306b\u56fa\u5b9a\u3057\u3001\u753b\u50cf\u3092\u9045\u5ef6\u3055\u305b\u308b\u3002<strong>\u3053\u308c\u3089\u306e\u554f\u984c\u306e\u89e3\u6c7a\u7b56\u306f\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u975e\u540c\u671f\u306b\u30ed\u30fc\u30c9\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/strong><\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u975e\u540c\u671f\u3067\u30ed\u30fc\u30c9\u3059\u308b\u6700\u5584\u306e\u65b9\u6cd5\u306f\u3001async\u5c5e\u6027\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u306e\u5c5e\u6027\u306e\u30b5\u30dd\u30fc\u30c8\u306f\u30012010\u5e74\u306eFirefox\u3068Chrome\u306b\u59cb\u307e\u308a\u30012012\u5e74\u306eSafari\u3068Internet Explorer\u304c\u30d6\u30e9\u30a6\u30b6\u306b\u8ffd\u52a0\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u304c\u5e83\u304f\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u308b\u524d\u306f\u3001\u958b\u767a\u8005\u306f<\/span><a href=\"https:\/\/www.stevesouders.com\/blog\/2009\/04\/27\/loading-scripts-without-blocking\/\"><span style=\"font-weight: 400;\">\u3055\u307e\u3056\u307e\u306a\u624b\u6cd5(\u3059\u306a\u308f\u3061\u3001\u30cf\u30c3\u30ad\u30f3\u30b0)<\/span><\/a><span style=\"font-weight: 400;\">\u3092\u4f7f\u3063\u3066\u975e\u540c\u671f\u3067\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u30ed\u30fc\u30c9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306e\u624b\u6cd5\u306f\u73fe\u5728\u3067\u3082\u7279\u6b8a\u306a\u72b6\u6cc1\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u3067\u975e\u540c\u671f\u3092\u4f7f\u7528\u3059\u308b\u65b9\u304c\u7c21\u5358\u3067\u3059\u3002\u307e\u305f\u3001\u30d7\u30ea\u30ed\u30fc\u30c0\u30fc\u306f\u3053\u308c\u3089\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u898b\u3064\u3051\u3001HTTP\u8981\u6c42\u3092\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u30ed\u30fc\u30c9\u3059\u308b\u3088\u308a\u3082\u65e9\u304f\u958b\u59cb\u3067\u304d\u308b\u305f\u3081\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3082\u5411\u4e0a\u3057\u307e\u3059\u3002<\/span><\/p>\n<p><img loading=\"lazy\" class=\"aligncenter size-large wp-image-2029\" src=\"http:\/\/domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/async-preloader-timeline-1024x716.jpg\" alt=\"\" width=\"1024\" height=\"716\" srcset=\"https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/async-preloader-timeline-1024x716.jpg 1024w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/async-preloader-timeline-300x210.jpg 300w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/async-preloader-timeline-768x537.jpg 768w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/async-preloader-timeline-100x70.jpg 100w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/async-preloader-timeline.jpg 1123w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u975e\u540c\u671f\u3067\u30ed\u30fc\u30c9\u3059\u308b\u5229\u70b9\u306f\u3001\u6b21\u306e\u30a6\u30a9\u30fc\u30bf\u30fc\u30d5\u30a9\u30fc\u30eb\u30c1\u30e3\u30fc\u30c8\u3067\u5f37\u8abf\u3055\u308c\u3066\u3044\u307e\u3059\u3002[http :\/\/ <\/span><a href=\"http:\/\/www.hp.com\/jp\/proliantessentials_manual\"><span style=\"font-weight: 400;\">www.hp.com\/jp\/proliantessentials_manual<\/span><\/a><span style=\"font-weight: 400;\">] \u3069\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u3082\u3001\u540c\u671f\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u793a\u3059\u8d64\u3044\u30cf\u30c3\u30b7\u30e5\u30fb\u30d1\u30bf\u30fc\u30f3\u304c\u306a\u3044\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3064\u307e\u308a\u3001\u3053\u308c\u3089\u306e20\u4ee5\u4e0a\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u3059\u3079\u3066\u975e\u540c\u671f\u3067\u30ed\u30fc\u30c9\u3055\u308c\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u30da\u30fc\u30b8\u306f\u8fc5\u901f\u306b\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3055\u308c(0.7\u79d2)\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u89e3\u6790\u3068\u5b9f\u884c\u306f\u30d6\u30ed\u30c3\u30af\u3055\u308c\u305a\u3001\u5404\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u5230\u7740\u3059\u308b\u3068\u3059\u3050\u306b\u51e6\u7406\u3055\u308c\u307e\u3059\u3002<\/span><\/p>\n<p><img loading=\"lazy\" class=\"aligncenter size-large wp-image-2030\" src=\"http:\/\/domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/async-waterfall2-1024x687.png\" alt=\"\" width=\"1024\" height=\"687\" srcset=\"https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/async-waterfall2-1024x687.png 1024w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/async-waterfall2-300x201.png 300w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/async-waterfall2-768x516.png 768w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/async-waterfall2.png 1144w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\u975e\u540c\u671f\u5c5e\u6027\u304c\u5229\u7528\u53ef\u80fd\u3067\u3088\u304f\u77e5\u3089\u308c\u3066\u3044\u308b\u306e\u306f\u7d20\u6674\u3089\u3057\u3044\u3053\u3068\u3067\u3059\u304c\u3001\u540c\u671f\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u30ed\u30fc\u30c9\u306f\u4f9d\u7136\u3068\u3057\u3066\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u3059\u3002\u3064\u307e\u308a\u3001Web\u30b5\u30a4\u30c8\u306e\u6240\u6709\u8005\u306f\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u975e\u540c\u671f\u3067\u30ed\u30fc\u30c9\u3059\u308b\u305f\u3081\u306b\u7279\u5225\u306a\u52aa\u529b\u3092\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4f5c\u696d\u91cf\u306f\u305d\u308c\u307b\u3069\u591a\u304f\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c(\u975e\u540c\u671f\u5c5e\u6027\u3092\u8ffd\u52a0\u3059\u308b\u3060\u3051\u3067\u3088\u3044)\u3001\u308f\u305a\u304b\u306a\u5909\u66f4\u3067\u3055\u3048\u3001Web\u4e0a\u306e\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u30fb\u30de\u30b9\u306b\u5230\u9054\u3059\u308b\u307e\u3067\u306b\u306f\u9577\u3044\u6642\u9593\u304c\u304b\u304b\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u4e0b\u306e\u30b0\u30e9\u30d5\u306f\u3001\u975e\u540c\u671f\u30b9\u30af\u30ea\u30d7\u30c8\u30fb\u30ed\u30fc\u30c9\u306e\u63a1\u7528\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u3001<\/span><a href=\"https:\/\/discuss.httparchive.org\/t\/adoption-of-async-script-loading\/1534\"><span style=\"font-weight: 400;\">HTTP Archive<\/span><\/a><span style=\"font-weight: 400;\">\u306e\u5206\u6790\u306b\u57fa\u3065\u304f\u3001\u4e16\u754c\u306e\u30c8\u30c3\u30d7~50\u4e07\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u4e2d\u592e\u5024\u7d71\u8a08\u3067\u3042\u308b\u30022015\u5e74\u5f8c\u534a\u306e\u6642\u70b9\u3067\u3001\u4e2d\u592e\u5024\u306f\u540c\u671f\u30b9\u30af\u30ea\u30d7\u30c8\u304c10\u3001\u975e\u540c\u671f\u30b9\u30af\u30ea\u30d7\u30c8\u304c2\u3067\u3057\u305f\u30022016\u5e746\u6708\u306b\u540c\u671f\u304c\u30c9\u30ed\u30c3\u30d7\u3057\u3001\u975e\u540c\u671f\u306e\u6570\u304c\u5897\u52a0\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u3001\u4e00\u90e8\u306e\u4e3b\u8981\u306a\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u65ad\u7247(Google Analytics\u3001Facebook\u306a\u3069\u3002)\u304c\u540c\u671f\u304b\u3089\u975e\u540c\u671f\u306b\u5207\u308a\u66ff\u3048\u305f\u305f\u3081\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u305d\u308c\u4ee5\u6765\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u7dcf\u6570\u306f\u5897\u3048\u7d9a\u3051\u3066\u3044\u307e\u3059\u304c\u3001\u65b0\u3057\u3044\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u3059\u3079\u3066\u975e\u540c\u671f\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u308c\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u6700\u65b0\u306e\u30c7\u30fc\u30bf\u306b\u3088\u308b\u3068\u3001\u540c\u671f\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u6570\u306f\u975e\u540c\u671f\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u65707~6\u3092\u4e0a\u56de\u3063\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<p><img loading=\"lazy\" class=\"aligncenter size-full wp-image-2031\" src=\"http:\/\/domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/async-adoption.png\" alt=\"\" width=\"1000\" height=\"436\" srcset=\"https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/async-adoption.png 1000w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/async-adoption-300x131.png 300w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/async-adoption-768x335.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\u975e\u540c\u671f\u7684\u306b\u30ed\u30fc\u30c9\u3055\u308c\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u6570\u304c\u3053\u306e\u3088\u3046\u306b\u5897\u52a0\u3057\u305f\u3053\u3068\u306f\u9a5a\u304f\u3079\u304d\u3053\u3068\u3067\u3059\u30023\u5e74\u306f\u9577\u3044\u3067\u3059\u304c50\u4e07\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u3064\u3044\u3066\u8a71\u3057\u3066\u3044\u307e\u3059\u3002\u540c\u671f\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u975e\u540c\u671f\u306b\u3059\u308b\u305f\u3081\u306e\u5909\u66f4\u306f\u4e9b\u7d30\u306a\u3053\u3068\u3067\u3059\u304c(\u975e\u540c\u671f\u5c5e\u6027\u3092\u8ffd\u52a0\u3059\u308b\u3060\u3051)\u3001\u5909\u66f4\u306b\u3088\u3063\u3066\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u306e\u306f\u5bb9\u6613\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002JavaScript\u304c\u89e3\u6790\u3055\u308c\u3066\u9806\u4e0d\u540c\u3067\u5b9f\u884c\u3055\u308c\u308b\u3068\u3001\u672a\u5b9a\u7fa9\u306e\u30b7\u30f3\u30dc\u30eb\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u76f8\u4e92\u4f9d\u5b58\u95a2\u4fc2\u3092\u89e3\u6d88\u3057\u3066\u5b89\u5168\u306a\u975e\u540c\u671f\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u30ed\u30fc\u30c9\u3092\u4fdd\u8a3c\u3059\u308b\u306b\u306f\u6642\u9593\u304c\u304b\u304b\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u4e0a\u306e\u30e1\u30ea\u30c3\u30c8\u306f\u3001\u7686\u3055\u3093\u306b\u3068\u3063\u3066\u3082\u30e6\u30fc\u30b6\u30fc\u306b\u3068\u3063\u3066\u3082\u4fa1\u5024\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u95a2\u9023\u8a18\u4e8b\u3000<\/span><a href=\"https:\/\/speedcurve.com\/blog\/preload-scripts\/\"><span style=\"font-weight: 400;\">https:\/\/speedcurve.com\/blog\/preload-scripts\/<\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"\u3000Steve Souders 2018\u5e7412\u670820\u65e5\u6728\u66dc\u65e5\u3000 \u30b9\u30af\u30ea\u30d7\u30c8\u3092\u975e\u540c\u671f\u3067\u30ed\u30fc\u30c9\u3059\u308b\u3053\u3068\u306e\u91cd\u8981\u6027\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a\u7b56\u3092\u5897\u3084\u3059\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u30012007\u5e74\u306b\u59cb\u307e\u3063\u305f\u975e\u540c\u671f\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u30ed\u30fc\u30c9 [&hellip;]","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[16,6],"tags":[],"_links":{"self":[{"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/posts\/2025"}],"collection":[{"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/comments?post=2025"}],"version-history":[{"count":1,"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/posts\/2025\/revisions"}],"predecessor-version":[{"id":2726,"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/posts\/2025\/revisions\/2726"}],"wp:attachment":[{"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/media?parent=2025"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/categories?post=2025"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/tags?post=2025"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}