{"id":1070,"date":"2021-08-17T17:29:14","date_gmt":"2021-08-17T08:29:14","guid":{"rendered":"http:\/\/baremetal.jp\/blog\/?p=1070"},"modified":"2022-03-16T12:49:10","modified_gmt":"2022-03-16T03:49:10","slug":"%e3%80%90%e3%82%b5%e3%83%bc%e3%83%90%e3%83%bc%e8%b2%a0%e8%8d%b7%e8%bb%bd%e6%b8%9b%e5%af%be%e7%ad%96%ef%bc%81%e3%80%91cdn%e3%81%a8%e3%81%af%ef%bc%9f-%e3%81%9d%e3%81%ae%e4%bb%95%e7%b5%84%e3%81%bf","status":"publish","type":"post","link":"https:\/\/baremetal.jp\/blog\/2021\/08\/17\/1070\/","title":{"rendered":"\u3010\u30b5\u30fc\u30d0\u30fc\u8ca0\u8377\u8efd\u6e1b\u5bfe\u7b56\uff01\u3011CDN\u3068\u306f\uff1f \u305d\u306e\u4ed5\u7d44\u307f\u3068\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8"},"content":{"rendered":"<p>\u8fd1\u5e74\u3001Web\u30b5\u30a4\u30c8\u30fb\u30b5\u30fc\u30d3\u30b9\u904b\u55b6\u306b\u304a\u3044\u3066\u300c\u30e6\u30fc\u30b6\u4f53\u9a13\uff08UX\uff09\u300d\u306e\u5411\u4e0a\u304c\u53eb\u3070\u308c\u3066\u3044\u307e\u3059\u3002UX\u306e\u5411\u4e0a\u306b\u306f\u3001\u30b5\u30a4\u30c8\u306e\u308f\u304b\u308a\u3084\u3059\u3055\u3084\u30c7\u30b6\u30a4\u30f3\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u5185\u5bb9\u3060\u3051\u3067\u306a\u304f\u3001\u5b89\u5b9a\u6027\u3084\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u901f\u3055\u3082\u91cd\u8981\u3068\u306a\u3063\u3066\u304d\u307e\u3059\u3002\u591a\u304f\u306e\u904b\u55b6\u8005\u306f\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u5145\u5b9f\u5ea6\u306b\u53cd\u3057\u3066\u4f4e\u4e0b\u3057\u304c\u3061\u306a\u8868\u793a\u901f\u5ea6\u3078\u306e\u5bfe\u5fdc\u306b\u8ffd\u308f\u308c\u3066\u3044\u308b\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002\u305d\u3053\u3067\u300cCDN\u300d\u306b\u76ee\u3092\u5411\u3051\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002CDN\u306f\u3001\u3088\u308a\u901f\u304f\u78ba\u5b9f\u306b\u5927\u5bb9\u91cf\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u914d\u4fe1\u3059\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3067\u3059\u3002CDN\u3092\u9069\u5207\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30a2\u30af\u30bb\u30b9\u96c6\u4e2d\u304c\u8d77\u3053\u308a\u3084\u3059\u3044\u6642\u9593\u5e2f\u3067\u3082\u3001\u30b9\u30e0\u30fc\u30ba\u306a\u95b2\u89a7\u74b0\u5883\u3092\u63d0\u4f9b\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002\u3053\u3053\u3067\u306f\u3001CDN\u306e\u6982\u8981\u3084\u4ed5\u7d44\u307f\u3001\u30e1\u30ea\u30c3\u30c8\u3068\u30c7\u30e1\u30ea\u30c3\u30c8\u306a\u3069\u3092\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_45 counter-hierarchy ez-toc-counter ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">\u76ee\u6b21<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/baremetal.jp\/blog\/2021\/08\/17\/1070\/#CDN%E3%81%A8%E3%81%AF%EF%BC%9F%E3%81%AA%E3%81%9C%E9%87%8D%E8%A6%81%EF%BC%9F\" title=\"CDN\u3068\u306f\uff1f\u306a\u305c\u91cd\u8981\uff1f\">CDN\u3068\u306f\uff1f\u306a\u305c\u91cd\u8981\uff1f<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/baremetal.jp\/blog\/2021\/08\/17\/1070\/#CDN%E3%81%8C%E6%B4%BB%E7%94%A8%E3%81%95%E3%82%8C%E3%82%8B%E8%83%8C%E6%99%AF\" title=\"CDN\u304c\u6d3b\u7528\u3055\u308c\u308b\u80cc\u666f\">CDN\u304c\u6d3b\u7528\u3055\u308c\u308b\u80cc\u666f<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/baremetal.jp\/blog\/2021\/08\/17\/1070\/#CDN%E3%81%AE%E4%BB%95%E7%B5%84%E3%81%BF\" title=\"CDN\u306e\u4ed5\u7d44\u307f\">CDN\u306e\u4ed5\u7d44\u307f<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/baremetal.jp\/blog\/2021\/08\/17\/1070\/#%E3%82%AA%E3%83%AA%E3%82%B8%E3%83%B3%E3%82%B5%E3%83%BC%E3%83%90%E3%83%BC%E3%81%A8%E3%82%AD%E3%83%A3%E3%83%83%E3%82%B7%E3%83%A5%E3%82%B5%E3%83%BC%E3%83%90%E3%83%BC%EF%BC%88%E4%BB%A3%E7%90%86%E3%82%B5%E3%83%BC%E3%83%90%E3%83%BC%EF%BC%89\" title=\"\u30aa\u30ea\u30b8\u30f3\u30b5\u30fc\u30d0\u30fc\u3068\u30ad\u30e3\u30c3\u30b7\u30e5\u30b5\u30fc\u30d0\u30fc\uff08\u4ee3\u7406\u30b5\u30fc\u30d0\u30fc\uff09\">\u30aa\u30ea\u30b8\u30f3\u30b5\u30fc\u30d0\u30fc\u3068\u30ad\u30e3\u30c3\u30b7\u30e5\u30b5\u30fc\u30d0\u30fc\uff08\u4ee3\u7406\u30b5\u30fc\u30d0\u30fc\uff09<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/baremetal.jp\/blog\/2021\/08\/17\/1070\/#CDN%E3%82%92%E5%88%A9%E7%94%A8%E3%81%99%E3%82%8B%E3%81%AB%E3%81%AFDNS%E3%81%AECNAME%E3%82%92%E4%BD%BF%E3%81%86\" title=\"CDN\u3092\u5229\u7528\u3059\u308b\u306b\u306fDNS\u306eCNAME\u3092\u4f7f\u3046\">CDN\u3092\u5229\u7528\u3059\u308b\u306b\u306fDNS\u306eCNAME\u3092\u4f7f\u3046<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/baremetal.jp\/blog\/2021\/08\/17\/1070\/#%E3%82%AD%E3%83%A3%E3%83%83%E3%82%B7%E3%83%A5%E3%81%AE%E8%A8%AD%E5%AE%9A\" title=\"\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u8a2d\u5b9a\">\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u8a2d\u5b9a<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/baremetal.jp\/blog\/2021\/08\/17\/1070\/#CDN%E3%82%92%E4%BD%BF%E3%81%86%E3%83%A1%E3%83%AA%E3%83%83%E3%83%88%E3%81%A8%E3%83%87%E3%83%A1%E3%83%AA%E3%83%83%E3%83%88\" title=\"CDN\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c8\u3068\u30c7\u30e1\u30ea\u30c3\u30c8\">CDN\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c8\u3068\u30c7\u30e1\u30ea\u30c3\u30c8<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/baremetal.jp\/blog\/2021\/08\/17\/1070\/#CDN%E3%81%AE%E3%83%A1%E3%83%AA%E3%83%83%E3%83%88\" title=\"CDN\u306e\u30e1\u30ea\u30c3\u30c8\">CDN\u306e\u30e1\u30ea\u30c3\u30c8<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/baremetal.jp\/blog\/2021\/08\/17\/1070\/#CDN%E3%81%AE%E3%83%87%E3%83%A1%E3%83%AA%E3%83%83%E3%83%88\" title=\"CDN\u306e\u30c7\u30e1\u30ea\u30c3\u30c8\">CDN\u306e\u30c7\u30e1\u30ea\u30c3\u30c8<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/baremetal.jp\/blog\/2021\/08\/17\/1070\/#%E3%81%BE%E3%81%A8%E3%82%81\" title=\"\u307e\u3068\u3081\">\u307e\u3068\u3081<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"CDN%E3%81%A8%E3%81%AF%EF%BC%9F%E3%81%AA%E3%81%9C%E9%87%8D%E8%A6%81%EF%BC%9F\"><\/span>CDN\u3068\u306f\uff1f\u306a\u305c\u91cd\u8981\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u307e\u305a\u3001CDN\u306e\u6982\u8981\u3068\u91cd\u8981\u6027\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002CDN\u3068\u306f\u3001\u300c\u30b3\u30f3\u30c6\u30f3\u30c4\u30fb\u30c7\u30ea\u30d0\u30ea\u30fc\u30fb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u300d\u306e\u7565\u79f0\u3067\u3001\u300c\u5927\u5bb9\u91cf\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u52b9\u7387\u3088\u304f\u5b89\u5b9a\u3057\u3066\u914d\u4fe1\u3059\u308b\u4ed5\u7d44\u307f\u300d\u3092\u6307\u3059\u8a00\u8449\u3067\u3059\u3002CDN\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30a2\u30af\u30bb\u30b9\u96c6\u4e2d\u304c\u8d77\u3053\u308a\u3084\u3059\u3044\u74b0\u5883\u4e0b\u3067\u3082\u3001\u52d5\u753b\u3084\u753b\u50cf\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u7d20\u65e9\u304f\u8868\u793a\u3055\u305b\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"CDN%E3%81%8C%E6%B4%BB%E7%94%A8%E3%81%95%E3%82%8C%E3%82%8B%E8%83%8C%E6%99%AF\"><\/span>CDN\u304c\u6d3b\u7528\u3055\u308c\u308b\u80cc\u666f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>CDN\u306f\u3001\u73fe\u4ee3\u306eWeb\u30b5\u30a4\u30c8\u30fb\u30b5\u30fc\u30d3\u30b9\u904b\u55b6\u306b\u304a\u3044\u3066\u983b\u7e41\u306b\u7528\u3044\u3089\u308c\u3066\u3044\u308b\u6280\u8853\u306e\u3072\u3068\u3064\u3067\u3059\u3002\u3067\u306f\u3001\u306a\u305c\u3053\u3053\u307e\u3067CDN\u304c\u5229\u7528\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u305d\u306e\u7406\u7531\u3068\u3057\u3066\u4ee5\u4e0b3\u70b9\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002<\/p>\n<h4><strong>\u52d5\u7684\u304b\u3064\u5927\u5bb9\u91cf\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u5897\u52a0<\/strong><\/h4>\n<p>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u306f\u3001\u30c6\u30ad\u30b9\u30c8\u304b\u3089\u753b\u50cf\u3078\u3001\u305d\u3057\u3066\u52d5\u753b\u3078\u3068\u9032\u5316\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u8fd1\u5e74\u306fUX\u3092\u523a\u6fc0\u3057\u3084\u3059\u3044\u52d5\u753b\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u76ee\u306b\u898b\u3048\u3066\u5897\u52a0\u3057\u3066\u3044\u307e\u3059\u3002\u5927\u5bb9\u91cf\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u914d\u4fe1\u306b\u306f\u76f8\u5fdc\u306e\u51e6\u7406\u80fd\u529b\u3092\u5fc5\u8981\u3068\u3059\u308b\u305f\u3081\u3001\u8ca0\u8377\u5206\u6563\u5bfe\u7b56\u306e\u4e00\u74b0\u3068\u3057\u3066\u4ee5\u524d\u306b\u3082\u5897\u3057\u3066CDN\u304c\u6d3b\u7528\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<h4><strong>\u30b3\u30a2\u30a6\u30a7\u30d6\u30d0\u30a4\u30bf\u30eb\u3078\u306e\u5bfe\u5fdc<\/strong><\/h4>\n<p>Google\u793e\u306b\u3088\u308c\u3070\u30012021\u5e746\u6708\u4e2d\u65ec\u304b\u3089\u691c\u7d22\u9806\u4f4d\u306e\u6c7a\u5b9a\u8981\u7d20\u3068\u3057\u3066\u300cCore Web Vitals\uff08\u30b3\u30a2\u30a6\u30a7\u30d6\u30d0\u30a4\u30bf\u30eb\uff09\u300d\u304c\u52a0\u308f\u308b\u3068\u767a\u8868\u3057\u3066\u3044\u307e\u3059\u3002\u30b3\u30a2\u30a6\u30a7\u30d6\u30d0\u30a4\u30bf\u30eb\u306f\u3001UX\u5411\u4e0a\u306e\u305f\u3081\u306b\u30b5\u30a4\u30c8\u306e\u5065\u5168\u6027\u3092\u8a08\u6e2c\u3059\u308b\u6307\u6a19\u3067\u3042\u308a\u3001\u4ee5\u4e0b3\u8981\u7d20\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u30fbLCP\uff08Largest Contentful Paint\uff09\uff1a\u30e1\u30a4\u30f3\u8981\u7d20\u3068\u5224\u65ad\u3055\u308c\u305f\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u307e\u3067\u306e\u6642\u9593\u3092\u8a08\u6e2c<\/p>\n<p>\u30fbFID\uff08First Input Delay\uff09\uff1a\u30e6\u30fc\u30b6\u304c\u30da\u30fc\u30b8\u5185\u3067\u8981\u7d20\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u306a\u3069\u306e\u884c\u52d5\u3092\u3057\u305f\u969b\u306e\u5fdc\u7b54\u901f\u5ea6\u3092\u5b9a\u91cf\u7684\u306b\u8a08\u6e2c<\/p>\n<p>\u30fbCLS\uff08Cumulative Layout Shift\uff09\uff1a\u30da\u30fc\u30b8\u8aad\u307f\u8fbc\u307f\u306e\u9045\u5ef6\u306b\u3088\u308b\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u30ba\u30ec\u3084\u8868\u793a\u4e0d\u5177\u5408\u306a\u3069\u8996\u899a\u7684\u306a\u5b89\u5b9a\u6027\u3092\u6e2c\u5b9a<\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u30b3\u30a2\u30a6\u30a7\u30d6\u30d0\u30a4\u30bf\u30eb\u3067\u306f\u3001\u300c\u30e6\u30fc\u30b6\u304c\u3069\u308c\u3060\u3051\u65e9\u304f\u3001\u30b9\u30e0\u30fc\u30ba\u306b\u3001\u5feb\u9069\u306b\u30b3\u30f3\u30c6\u30f3\u30c4\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u304b\u300d\u304c\u91cd\u8996\u3055\u308c\u307e\u3059\u3002\u8a00\u3044\u63db\u3048\u308c\u3070\u300c\u8868\u793a\u901f\u5ea6\u306e\u901f\u3055\u300d\u304cWeb\u30b5\u30a4\u30c8\u30fb\u30b5\u30fc\u30d3\u30b9\u306e\u8a55\u4fa1\u3092\u5927\u304d\u304f\u5de6\u53f3\u3059\u308b\u3053\u3068\u306b\u306a\u308b\u3068\u8a00\u3048\u307e\u3059\u3002CDN\u306f\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u8868\u793a\u30fb\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3092\u30b9\u30e0\u30fc\u30ba\u306b\u3059\u308b\u52b9\u679c\u304c\u3042\u308b\u3053\u3068\u304b\u3089\u3001\u30b3\u30a2\u30a6\u30a7\u30d6\u30d0\u30a4\u30bf\u30eb\u306e\u6539\u5584\u306b\u3082\u52b9\u679c\u304c\u898b\u8fbc\u3081\u308b\u4ed5\u7d44\u307f\u3068\u8a00\u3048\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<h4><strong>\u30aa\u30f3\u30e9\u30a4\u30f3\u30b7\u30d5\u30c8\u306b\u3088\u308b\u30cd\u30c3\u30c8\u30e6\u30fc\u30b6\u306e\u5897\u52a0<\/strong><\/h4>\n<p>\u30b3\u30ed\u30ca\u798d\u3092\u304d\u3063\u304b\u3051\u3068\u3057\u3066\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u4eba\u30fb\u6642\u9593\u3068\u3082\u306b\u5897\u3048\u308b\u50be\u5411\u304c\u7d9a\u3044\u3066\u304a\u308a\u3001\u305d\u306e\u7d50\u679c\u3001\u30a2\u30af\u30bb\u30b9\u96c6\u4e2d\u306e\u30ea\u30b9\u30af\u3082\u307e\u305f\u5897\u52a0\u3057\u3066\u3044\u307e\u3059\u3002CDN\u306b\u3088\u308b\u8ca0\u8377\u5206\u6563\u306f\u3001\u5b89\u5b9a\u3057\u305f\u30b5\u30fc\u30d3\u30b9\u306e\u63d0\u4f9b\u306b\u6b20\u304b\u305b\u306a\u3044\u3082\u306e\u3068\u306a\u3063\u3066\u3044\u308b\u306e\u3067\u3059\u3002<strong>\u00a0<\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"CDN%E3%81%AE%E4%BB%95%E7%B5%84%E3%81%BF\"><\/span>CDN\u306e\u4ed5\u7d44\u307f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u6b21\u306b\u3001CDN\u306e\u4ed5\u7d44\u307f\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E3%82%AA%E3%83%AA%E3%82%B8%E3%83%B3%E3%82%B5%E3%83%BC%E3%83%90%E3%83%BC%E3%81%A8%E3%82%AD%E3%83%A3%E3%83%83%E3%82%B7%E3%83%A5%E3%82%B5%E3%83%BC%E3%83%90%E3%83%BC%EF%BC%88%E4%BB%A3%E7%90%86%E3%82%B5%E3%83%BC%E3%83%90%E3%83%BC%EF%BC%89\"><\/span>\u30aa\u30ea\u30b8\u30f3\u30b5\u30fc\u30d0\u30fc\u3068\u30ad\u30e3\u30c3\u30b7\u30e5\u30b5\u30fc\u30d0\u30fc\uff08\u4ee3\u7406\u30b5\u30fc\u30d0\u30fc\uff09<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>CDN\u306f\u3001\u300c\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u7a2e\u985e\u300d\u3084\u300c\u30e6\u30fc\u30b6\u304c\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3044\u308b\u5730\u57df\u300d\u3088\u3063\u3066\u9069\u5207\u306a\u30a2\u30af\u30bb\u30b9\u5148\u3092\u63d0\u4f9b\u3057\u3001\u52b9\u7387\u3088\u304f\u914d\u4fe1\u3092\u884c\u3044\u307e\u3059\u3002\u305d\u308c\u3092\u5b9f\u73fe\u3059\u308b\u4ed5\u7d44\u307f\u304c\u300c\u30aa\u30ea\u30b8\u30f3\u30b5\u30fc\u30d0\u30fc\u300d\u3068\u300c\u30ad\u30e3\u30c3\u30b7\u30e5\u30b5\u30fc\u30d0\u30fc\uff08\u4ee3\u7406\u30b5\u30fc\u30d0\u30fc\uff09\u300d\u3067\u3059\u3002<\/p>\n<p>\u30aa\u30ea\u30b8\u30f3\u30b5\u30fc\u30d0\u30fc\u306f\u300c\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u672c\u4f53\u304c\u4fdd\u7ba1\u3055\u308c\u3066\u3044\u308b\u30b5\u30fc\u30d0\u30fc\u300d\u3067\u3059\u3002\u3053\u308c\u306b\u5bfe\u3057\u3066\u30ad\u30e3\u30c3\u30b7\u30e5\u30b5\u30fc\u30d0\u30fc\uff08\u4ee3\u7406\u30b5\u30fc\u30d0\u30fc\uff09\u306f\u3001\u300c\u30aa\u30ea\u30b8\u30f3\u30b5\u30fc\u30d0\u30fc\u306b\u4fdd\u7ba1\u3055\u308c\u3066\u3044\u308b\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u4e00\u90e8\u3092\u3001\u30b3\u30d4\u30fc\u3068\u3057\u3066\u4fdd\u6301\u3059\u308b\u30b5\u30fc\u30d0\u30fc\u300d\u3067\u3059\u3002<\/p>\n<p>CDN\u3092\u4f7f\u7528\u3057\u306a\u3044\u5834\u5408\u3001\u30e6\u30fc\u30b6\u306f\u30aa\u30ea\u30b8\u30f3\u30b5\u30fc\u30d0\u30fc\u306b\u3042\u308b\u30b3\u30f3\u30c6\u30f3\u30c4\u306b\u30a2\u30af\u30bb\u30b9\u3057\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u30aa\u30ea\u30b8\u30f3\u30b5\u30fc\u30d0\u30fc\u306e\u8ca0\u8377\u304c\u5897\u3048\u305f\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5e2f\u57df\u304c\u903c\u8feb\u3057\u3066\u3057\u307e\u3044\u3001\u9045\u5ef6\u3084\u30b5\u30fc\u30d0\u30fc\u30c0\u30a6\u30f3\u306e\u539f\u56e0\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/baremetal.jp\/blog\/wp-content\/uploads\/2021\/08\/CDN_originserver.png\" alt=\"\" \/><\/p>\n<p>\u4e00\u65b9\u3001CDN\u3092\u7528\u3044\u308b\u5834\u5408\u306f\u3001\u5404\u5730\u306b\u914d\u7f6e\u3055\u308c\u305f\u30ad\u30e3\u30c3\u30b7\u30e5\u30b5\u30fc\u30d0\u30fc\u306e\u4e2d\u304b\u3089\u30e6\u30fc\u30b6\u306b\u6700\u3082\u8fd1\u3044\u3082\u306e\u304c\u9078\u3070\u308c\u308b\u305f\u3081\u3001\u81ea\u52d5\u7684\u306b\u30a2\u30af\u30bb\u30b9\u304c\u5206\u6563\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30aa\u30ea\u30b8\u30f3\u30b5\u30fc\u30d0\u30fc\u306e\u30b9\u30da\u30c3\u30af\u3092\u4e0a\u3052\u305f\u308a\u3001\u8907\u6570\u53f0\u306b\u5897\u3084\u3057\u305f\u308a\u3057\u306a\u304f\u3066\u3082\u3001\u5b89\u5b9a\u3057\u3066\u9ad8\u901f\u306b\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u914d\u4fe1\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/baremetal.jp\/blog\/wp-content\/uploads\/2021\/08\/CDN_cacheserver.png\" alt=\"\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"CDN%E3%82%92%E5%88%A9%E7%94%A8%E3%81%99%E3%82%8B%E3%81%AB%E3%81%AFDNS%E3%81%AECNAME%E3%82%92%E4%BD%BF%E3%81%86\"><\/span>CDN\u3092\u5229\u7528\u3059\u308b\u306b\u306fDNS\u306eCNAME\u3092\u4f7f\u3046<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>CDN\u3092\u5229\u7528\u3059\u308b\u306b\u306f\u3001DNS\u306e\u300cCNAME\u30ec\u30b3\u30fc\u30c9\u300d\u306e\u8a2d\u5b9a\u304c\u5fc5\u8981\u3067\u3059\u3002CNAME\u30ec\u30b3\u30fc\u30c9\u3092\u5229\u7528\u3057\u3001\u300c\u4efb\u610f\u306eURL\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306b\u5bfe\u3057\u3001URL\u306f\u305d\u306e\u307e\u307e\u3067\u4ed6\u306e\u30b5\u30fc\u30d0\u30fc\u3078\u30a2\u30af\u30bb\u30b9\u3055\u305b\u308b\u300d\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u4f8b\u3067\u306f\u3001\u30aa\u30ea\u30b8\u30f3\u30b5\u30fc\u30d0\u30fc\u306eURL\u300cwww.origin.jp\u300d\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092CDN\u30b5\u30fc\u30d3\u30b9\u306eURL\u300ccdn.exampe.com\u300d\u306b\u5909\u66f4\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<blockquote><p>\u201cwww.origin.jp IN CNAME cdn.exampe.com\u201d<\/p><\/blockquote>\n<p>\u3053\u308c\u306b\u3088\u308a\u3001\u30aa\u30ea\u30b8\u30f3\u30b5\u30fc\u30d0\u30fc\u3068CDN\u3092\u7d50\u3073\u3064\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3001\u30aa\u30ea\u30b8\u30f3\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u6765\u305f\u6642\u306b\u3001\u4ee3\u308f\u308a\u306bCDN\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u30b5\u30fc\u30d0\u30fc\u304c\u5bfe\u5fdc\u3057\u3066\u304f\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<strong>\u00a0<\/strong><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E3%82%AD%E3%83%A3%E3%83%83%E3%82%B7%E3%83%A5%E3%81%AE%E8%A8%AD%E5%AE%9A\"><\/span>\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u8a2d\u5b9a<span 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