{"id":35548,"date":"2026-08-25T16:04:13","date_gmt":"2026-08-25T08:04:13","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-cn\/why-does-a-server-become-slower-after-using-a-cdn\/"},"modified":"2026-08-25T16:11:02","modified_gmt":"2026-08-25T08:11:02","slug":"why-does-a-server-become-slower-after-using-a-cdn","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-cn\/blog\/why-does-a-server-become-slower-after-using-a-cdn\/","title":{"rendered":"\u4e3a\u4ec0\u4e48\u4f7f\u7528 CDN \u540e\u670d\u52a1\u5668\u53cd\u800c\u53d8\u6162\uff1f"},"content":{"rendered":"\n<p>\u4f60\u539f\u672c\u671f\u5f85<a href=\"https:\/\/www.varidata.com\/zh-cn\/knowledge\/100m-dedicated-bandwidth-content-distribution-on-hk-servers\/\" target=\"_blank\">\u5185\u5bb9\u5206\u53d1\u7f51\u7edc<\/a>\u80fd\u63d0\u5347\u901f\u5ea6\uff0c\u7ed3\u679c\u7f51\u7ad9\u5374\u611f\u89c9\u66f4\u6162\u4e86\u3002\u662f\u7684\uff0cCDN 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HTTP\/2\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u901a\u8fc7\u591a\u8def\u590d\u7528\u964d\u4f4e\u5ef6\u8fdf\u3002\u786e\u8ba4\u5e94\u7528\u6846\u67b6\u4e2d\u7684\u7f13\u5b58\u5c42\u662f\u5426\u5de5\u4f5c\u6b63\u5e38\u3002\u67e5\u770b\u9519\u8bef\u65e5\u5fd7\uff0c\u5bfb\u627e\u91cd\u590d\u6027\u6545\u969c\u6216\u8d85\u65f6\u4fe1\u606f\u3002\u6709\u65f6\uff0c\u4e00\u4e2a\u7b80\u5355\u7684\u8c03\u6574\uff0c\u6bd4\u5982\u63d0\u9ad8 PHP \u5185\u5b58\u9650\u5236\u6216\u4fee\u6539\u5de5\u4f5c\u8fdb\u7a0b\u6570\u91cf\uff0c\u5c31\u80fd\u89e3\u51b3\u6027\u80fd\u4e0b\u964d\u95ee\u9898\u3002\u8fd9\u7c7b\u8f6f\u4ef6\u5c42\u9762\u7684\u4f18\u5316\uff0c\u5f80\u5f80\u6bd4\u4f60\u5355\u7eaf\u4fee\u6539 CDN \u8bbe\u7f6e\u5e26\u6765\u7684\u6536\u76ca\u66f4\u660e\u663e\u3002<\/p>\n<h2>\u7f13\u5b58\u914d\u7f6e\u9677\u9631<\/h2>\n<figure class=\"aligncenter qc-single-image-wrapper\">\n<div class=\"qc-image-resizable-wrapper\" style=\"max-width: 100%\"><img decoding=\"async\" src=\"https:\/\/statics.mylandingpages.co\/static\/aaanxdmf26c522mpaaagw6hehmi5qbqs\/image\/3dbbcb5cdb474dde89982b2610750ecb.webp\" alt=\"\u7f13\u5b58\u914d\u7f6e\u9677\u9631\" width=\"720\" height=\"405\" loading=\"lazy\" style=\"width: 720px;max-width: 100%\"><\/div><figcaption class=\"qc-caption\">\u56fe\u7247\u6765\u6e90\uff1a<a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/pexels.com\">pexels<\/a><\/figcaption><\/figure>\n<h3>\u9ed8\u8ba4\u4ec5\u7f13\u5b58\u9759\u6001\u8d44\u6e90<\/h3>\n<p>\u8bb8\u591a CDN \u670d\u52a1\uff0c\u5305\u62ec Cloudflare\uff0c\u9ed8\u8ba4\u7b56\u7565\u90fd\u6bd4\u8f83\u4fdd\u5b88\u3002\u5b83\u4eec\u4f1a\u81ea\u52a8\u7f13\u5b58\u56fe\u7247\u3001CSS \u548c JavaScript \u6587\u4ef6\u7b49\u9759\u6001\u8d44\u6e90\uff0c\u4f46\u9ed8\u8ba4\u4e0d\u4f1a\u7f13\u5b58 HTML 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\u660e\u6587\u52a0\u8f7d\u7684\u8d44\u6e90\u3002\u6d4f\u89c8\u5668\u4f1a\u5c06\u8fd9\u7c7b\u8d44\u6e90\u89c6\u4e3a\u4e0d\u5b89\u5168\u5185\u5bb9\uff0c\u56e0\u6b64\u53ef\u80fd\u76f4\u63a5\u62e6\u622a\uff0c\u6216\u5ef6\u8fdf\u5176\u52a0\u8f7d\u3002\u800c\u8fd9\u79cd\u5ef6\u8fdf\u4f1a\u76f4\u63a5\u4f24\u5bb3\u9875\u9762\u6027\u80fd\u3002<\/p>\n<p>\u4e0b\u8868\u5c55\u793a\u4e86\u6df7\u5408\u5185\u5bb9\u5bf9\u5173\u952e\u6307\u6807\u7684\u5f71\u54cd\u3002<\/p>\n<div class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 50px\">\n<colgroup>\n<col style=\"min-width: 25px\">\n<col style=\"min-width: 25px\"><\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u6027\u80fd\u7ef4\u5ea6<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u6df7\u5408\u5185\u5bb9\u5e26\u6765\u7684\u5f71\u54cd<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6d4f\u89c8\u5668\u52a0\u8f7d<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u901a\u8fc7\u7acb\u5373\u63d0\u4f9b\u9759\u6001\u9875\u9762\u5916\u58f3\uff0c\u53ef\u6539\u5584 First Contentful Paint\uff08FCP\uff09\u548c Largest Contentful Paint\uff08LCP\uff09\uff1b\u7528\u6237\u80fd\u66f4\u5feb\u770b\u5230\u6709\u610f\u4e49\u7684\u5185\u5bb9\uff0c\u4ece\u800c\u63d0\u5347\u611f\u77e5\u6027\u80fd\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>CDN \u6027\u80fd<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u9759\u6001\u90e8\u5206\u53ef\u7531 CDN \u7f13\u5b58\uff0c\u4ece\u800c\u964d\u4f4e\u670d\u52a1\u5668\u8d1f\u8f7d\uff1b\u52a8\u6001\u90e8\u5206\u4ec5\u5728\u9700\u8981\u65f6\u6e32\u67d3\uff0c\u4f18\u5316\u8d44\u6e90\u5229\u7528\u7387\u5e76\u51cf\u5c11\u5197\u4f59\u7f51\u7edc\u8bf7\u6c42\u3002<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u5f53\u4f60\u4fee\u590d\u6df7\u5408\u5185\u5bb9\u540e\uff0c\u6d4f\u89c8\u5668\u5c31\u80fd\u7acb\u5373\u52a0\u8f7d\u9759\u6001\u9875\u9762\u5916\u58f3\u3002\u8fd9\u4f1a\u6539\u5584 First Contentful Paint \u548c Largest Contentful Paint\u3002\u4f60\u7684 CDN \u53ef\u4ee5\u7f13\u5b58\u9759\u6001\u90e8\u5206\uff0c\u964d\u4f4e\u6e90\u7ad9\u670d\u52a1\u5668\u8d1f\u8f7d\uff0c\u800c\u52a8\u6001\u90e8\u5206\u53ea\u5728\u9700\u8981\u65f6\u624d\u6e32\u67d3\uff0c\u4ece\u800c\u4f18\u5316\u8d44\u6e90\u6548\u7387\u3002<\/p>\n<p>\u4fee\u590d\u6df7\u5408\u5185\u5bb9\u7684\u65b9\u6cd5\u5f88\u7b80\u5355\uff1a\u628a\u6240\u6709\u8d44\u6e90 URL \u90fd\u66f4\u65b0\u4e3a HTTPS\uff1b\u4f7f\u7528\u534f\u8bae\u76f8\u5bf9 URL\uff0c\u6216\u8005\u786e\u4fdd\u4f60\u7684 CMS \u751f\u6210\u7684\u662f\u5b89\u5168\u94fe\u63a5\u3002\u8fd9\u6837\uff0c\u6d4f\u89c8\u5668\u548c CDN \u624d\u80fd\u534f\u540c\u5de5\u4f5c\uff0c\u6d88\u9664\u6df7\u5408\u5185\u5bb9\u5e26\u6765\u7684\u52a0\u8f7d\u5ef6\u8fdf\u3002<\/p>\n<h2>\u7f51\u7edc\u4e0e CDN \u670d\u52a1\u5546\u95ee\u9898<\/h2>\n<h3>\u5730\u7406\u4f4d\u7f6e\u4e0e\u6d77\u5e95\u5149\u7f06\u5ef6\u8fdf<\/h3>\n<p>\u6e90\u7ad9\u670d\u52a1\u5668\u7684\u7269\u7406\u4f4d\u7f6e\u6bd4\u4f60\u60f3\u8c61\u4e2d\u66f4\u91cd\u8981\u3002\u5982\u679c\u7528\u6237\u4f4d\u4e8e\u5927\u6d0b\u5f7c\u5cb8\uff0c\u4ed6\u4eec\u7684\u8bf7\u6c42\u5c31\u5fc5\u987b\u901a\u8fc7\u8de8\u6d32\u4f20\u8f93\u6570\u636e\u7684\u6d77\u5e95\u5149\u7f06\u3002\u8fd9\u4e9b\u5149\u7f06\u5bb9\u91cf\u6709\u9650\uff0c\u5728\u9ad8\u5cf0\u671f\u4e00\u65e6\u53d1\u751f\u62e5\u585e\uff0c\u6240\u6709\u5230\u8fbe\u6e90\u7ad9\u7684\u8bf7\u6c42\u90fd\u4f1a\u589e\u52a0\u660e\u663e\u5ef6\u8fdf\u3002CDN 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CDN\u3002\u6709\u4e9b\u670d\u52a1\u5546\u5728\u540c\u4e00\u4e2a\u56fd\u5bb6\u5185\u90e8\u5c31\u90e8\u7f72\u4e86\u591a\u4e2a\u8fb9\u7f18\u8282\u70b9\uff0c\u800c\u53e6\u4e00\u4e9b\u670d\u52a1\u5546\u8986\u76d6\u6709\u9650\uff0c\u5bfc\u81f4\u7528\u6237\u53ea\u80fd\u8fde\u63a5\u5230\u66f4\u8fdc\u7684\u8fb9\u7f18\u8282\u70b9\u3002\u8fd9\u79cd\u5730\u7406\u4e0a\u7684\u8986\u76d6\u5dee\u8ddd\u4f1a\u76f4\u63a5\u589e\u52a0\u8bbf\u95ee\u5ef6\u8fdf\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u652f\u6301\u591a\u57ce\u5e02\u6d4b\u8bd5\u7684\u514d\u8d39\u5de5\u5177\uff0c\u5bf9\u6bd4\u4e0d\u540c\u5730\u533a\u7684\u54cd\u5e94\u65f6\u95f4\uff0c\u4ece\u800c\u91cf\u5316\u8fd9\u4e00\u5f71\u54cd\u3002<\/p>\n<h3>DNS \u4e0e\u8fb9\u7f18\u7f51\u7edc\u8d28\u91cf<\/h3>\n<p>\u5728\u9875\u9762\u771f\u6b63\u5f00\u59cb\u52a0\u8f7d\u4e4b\u524d\uff0cDNS \u89e3\u6790\u672c\u8eab\u4e5f\u4f1a\u5e26\u6765\u989d\u5916\u5ef6\u8fdf\u3002\u5f53\u7528\u6237\u8f93\u5165\u4f60\u7684\u57df\u540d\u65f6\uff0c\u6d4f\u89c8\u5668\u5fc5\u987b\u5148\u67e5\u8be2 DNS \u670d\u52a1\u5668\uff0c\u624d\u80fd\u83b7\u5f97\u7f51\u7ad9\u5bf9\u5e94\u7684 IP \u5730\u5740\u3002\u4e00\u4e2a\u7f13\u6162\u7684 DNS \u670d\u52a1\u5546\u53ef\u80fd\u4f1a\u5728\u8fd9\u4e2a\u9636\u6bb5\u989d\u5916\u589e\u52a0\u6570\u767e\u6beb\u79d2\u3002\u4f60\u53ef\u4ee5\u901a\u8fc7\u9009\u62e9\u54cd\u5e94\u901f\u5ea6\u5feb\u3001\u5177\u5907\u5168\u7403\u8986\u76d6\u80fd\u529b\u7684 DNS \u670d\u52a1\u6765\u51cf\u5c11\u8fd9\u79cd\u5ef6\u8fdf\u3002\u6709\u4e9b CDN \u670d\u52a1\u5546\u4f1a\u628a\u9ad8\u8d28\u91cf DNS \u4f5c\u4e3a\u670d\u52a1\u7684\u4e00\u90e8\u5206\u63d0\u4f9b\uff0c\u8fd9\u6837\u4f60\u5c31\u4e0d\u9700\u8981\u5355\u72ec\u518d\u627e DNS \u6258\u7ba1\u5546\u3002<\/p>\n<p>CDN \u8fb9\u7f18\u7f51\u7edc\u672c\u8eab\u7684\u8d28\u91cf\uff0c\u4e5f\u4f1a\u5f71\u54cd\u4f60\u7684\u6027\u80fd\u8868\u73b0\u3002\u7814\u7a76\u8868\u660e\uff0c\u5728\u5206\u5e03\u5f0f\u67b6\u6784\u4e2d\u589e\u52a0\u66f4\u591a\u670d\u52a1\u5668\uff0c\u5e76\u4e0d\u4e00\u5b9a\u4f1a\u964d\u4f4e\u5ef6\u8fdf\u3002\u989d\u5916\u7684\u670d\u52a1\u5668\u4e4b\u95f4\u9700\u8981\u66f4\u591a\u534f\u8c03\uff0c\u53cd\u800c\u53ef\u80fd\u589e\u52a0\u5f80\u8fd4\u65f6\u95f4\u3002\u8fd9\u8bf4\u660e\uff0c\u4f60\u5e94\u8be5\u8bc4\u4f30 CDN \u5b9e\u9645\u7684\u8fb9\u7f18\u6027\u80fd\uff0c\u800c\u4e0d\u662f\u60f3\u5f53\u7136\u5730\u8ba4\u4e3a\u201c\u8282\u70b9\u8d8a\u591a\u5c31\u4e00\u5b9a\u8d8a\u5feb\u201d\u3002<\/p>\n<blockquote>\n<p>\u53ea\u770b\u5e73\u5747 TTFB \u4f1a\u63a9\u76d6\u6781\u7aef\u5ef6\u8fdf\u5c16\u5cf0\u3002\u5e73\u5747\u503c\u4f1a\u628a 99 \u6b21\u5feb\u901f\u7f13\u5b58\u547d\u4e2d\u4e0e 1 \u6b21\u707e\u96be\u6027\u7684\u6e90\u7ad9\u8d85\u65f6\u6df7\u5408\u6210\u4e00\u4e2a\u4e2d\u95f4\u6570\u5b57\uff0c\u800c\u8fd9\u4e2a\u6570\u5b57\u5e76\u4e0d\u80fd\u771f\u5b9e\u4ee3\u8868\u4efb\u4f55\u4e00\u6b21\u5b9e\u9645\u7528\u6237\u4f1a\u8bdd\u3002<\/p>\n<\/blockquote>\n<p>\u8fd9\u7c7b\u7f51\u7edc\u95ee\u9898\u5f80\u5f80\u4f1a\u7a81\u7136\u51fa\u73b0\u3002\u4f60\u53ef\u80fd\u4f1a\u53d1\u73b0\u5ef6\u8fdf\u7a81\u7136\u98d9\u5347\uff0c\u5e76\u6301\u7eed\u6570\u5c0f\u65f6\uff0c\u800c CDN \u670d\u52a1\u5546\u672a\u5fc5\u4f1a\u53ca\u65f6\u627f\u8ba4\u95ee\u9898\u3002\u4f60\u53ef\u4ee5\u901a\u8fc7\u6301\u7eed\u76d1\u63a7\u8fb9\u7f18\u6027\u80fd\uff0c\u5e76\u51c6\u5907\u597d\u5907\u7528\u670d\u52a1\u5546\uff0c\u6765\u964d\u4f4e\u8fd9\u7c7b\u98ce\u9669\u3002\u591a CDN \u7b56\u7565\u80fd\u5728\u67d0\u4e00\u7f51\u7edc\u51fa\u73b0\u6545\u969c\u65f6\u4e3a\u4f60\u63d0\u4f9b\u5207\u6362\u7a7a\u95f4\u3002<\/p>\n<div class=\"qc-divider-wrapper\">\n<div class=\"qc-divider\" style=\"border-top-style: solid;width: 100%\"><\/div>\n<\/div>\n<p>\u201c\u4e3a\u4ec0\u4e48\u4f7f\u7528 CDN \u540e\u670d\u52a1\u5668\u53cd\u800c\u53d8\u6162\uff1f\u201d\u8fd9\u4e2a\u95ee\u9898\u5176\u5b9e\u6709\u660e\u786e\u7b54\u6848\u3002\u670d\u52a1\u5668\u53d8\u6162\u901a\u5e38\u6e90\u4e8e\u914d\u7f6e\u9519\u8bef\u3001\u7f51\u7edc\u95ee\u9898\u3001\u672a\u88ab\u52a0\u901f\u7684\u7b2c\u4e09\u65b9\u8d44\u6e90\uff0c\u6216\u4e0d\u5408\u7406\u7684\u7f13\u5b58\u7b56\u7565\u3002\u8fd9\u4e9b\u95ee\u9898\u90fd\u662f\u53ef\u4ee5\u89e3\u51b3\u7684\u3002\u9996\u5148\u8981\u505a\u7684\u662f\u6301\u7eed\u76d1\u63a7\u6027\u80fd\uff0c\u4f8b\u5982\u8ddf\u8e2a Time to First Byte \u548c\u7f13\u5b58\u547d\u4e2d\u7387\u7b49\u6307\u6807\u3002\u8fd9\u4e9b\u6307\u6807\u80fd\u591f\u63ed\u793a\u5ef6\u8fdf\u7a76\u7adf\u51fa\u73b0\u5728\u54ea\u4e2a\u73af\u8282\u3002\u7136\u540e\uff0c\u8c03\u4f18\u7f13\u5b58\u6807\u5934\uff0c\u4e3a\u4e0d\u540c\u7c7b\u578b\u5185\u5bb9\u8bbe\u7f6e\u5408\u9002\u7684 TTL\uff1b\u542f\u7528 HTTP\/2 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\u670d\u52a1\u5546\u4f1a\u5f71\u54cd\u7f51\u7ad9\u901f\u5ea6\uff1f<\/h3>\n<p>\u8fd9\u4e0e\u201c\u4e3a\u4ec0\u4e48\u4f7f\u7528 CDN \u540e\u670d\u52a1\u5668\u53cd\u800c\u53d8\u6162\uff1f\u201d\u76f4\u63a5\u76f8\u5173\u3002\u4f60\u7684 DNS \u670d\u52a1\u5546\u8d1f\u8d23\u628a\u7528\u6237\u5f15\u5bfc\u5230 CDN \u7684\u8fb9\u7f18\u8282\u70b9\u3002\u4e00\u6b21\u7f13\u6162\u7684\u89e3\u6790\u5c31\u53ef\u80fd\u589e\u52a0\u6570\u767e\u6beb\u79d2\u3002\u8bf7\u9009\u62e9\u5177\u5907\u5168\u7403\u8986\u76d6\u80fd\u529b\u4e14\u67e5\u8be2\u901f\u5ea6\u5feb\u7684 DNS \u670d\u52a1\u3002<\/p>\n<h3>\u9759\u6001\u8d44\u6e90\u7406\u60f3\u7684 cache control header \u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>\u56fe\u7247\u3001CSS \u548c JavaScript \u6587\u4ef6\u901a\u5e38\u53ef\u4ee5\u8bbe\u7f6e\u4e00\u5e74\u7684 TTL\u3002\u8fd9\u6837\u53ef\u4ee5\u544a\u8bc9\u6d4f\u89c8\u5668\u548c CDN \u957f\u671f\u7f13\u5b58\u8fd9\u4e9b\u8d44\u6e90\uff0c\u4ece\u800c\u51cf\u5c11\u6e90\u7ad9\u670d\u52a1\u5668\u9700\u8981\u5904\u7406\u7684\u8bf7\u6c42\u6570\u91cf\u3002<\/p>\n<h3>\u6211\u5982\u4f55\u9a8c\u8bc1\u4f60\u7684\u7f13\u5b58\u914d\u7f6e\u662f\u5426\u751f\u6548\uff1f<\/h3>\n<p>\u67e5\u770b\u670d\u52a1\u5546\u63a7\u5236\u53f0\u4e2d\u7684\u7f13\u5b58\u547d\u4e2d\u7387\u3002\u5982\u679c\u547d\u4e2d\u7387\u4f4e\u4e8e 85%\uff0c\u8bf4\u660e\u4ecd\u6709\u8fc7\u591a\u8bf7\u6c42\u843d\u56de\u6e90\u7ad9\u670d\u52a1\u5668\u3002\u4f60\u8fd8\u5e94\u76d1\u63a7 Time to First Byte\uff0c\u4ee5\u4fbf\u8bc6\u522b\u6f5c\u5728\u95ee\u9898\u3002<\/p>\n<h3>\u6211\u662f\u5426\u5e94\u8be5\u91c7\u7528\u591a\u670d\u52a1\u5546\u65b9\u6848\uff1f<\/h3>\n<p>\u662f\u7684\uff0c\u591a CDN \u7b56\u7565\u53ef\u4ee5\u5e2e\u52a9\u4f60\u89c4\u907f\u5355\u4e00\u670d\u52a1\u5546\u6545\u969c\u5e26\u6765\u7684\u98ce\u9669\u3002\u5982\u679c\u4e00\u4e2a\u7f51\u7edc\u51fa\u73b0\u95ee\u9898\uff0c\u53e6\u4e00\u4e2a\u7f51\u7edc\u53ef\u4ee5\u63a5\u7ba1\u6d41\u91cf\u3002\u5bf9\u4e8e\u9762\u5411\u5168\u7403\u7528\u6237\u7684\u7f51\u7ad9\u800c\u8a00\uff0c\u8fd9\u79cd\u505a\u6cd5\u80fd\u540c\u65f6\u63d0\u5347\u6027\u80fd\u4e0e\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f60\u539f\u672c\u671f\u5f85\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\u80fd\u63d0\u5347\u901f\u5ea6\uff0c\u7ed3\u679c\u7f51\u7ad9\u5374\u611f\u89c9\u66f4\u6162\u4e86\u3002\u662f\u7684\uff0cCDN \u786e\u5b9e\u6709\u53ef\u80fd\u8ba9\u4f60\u7684\u670d\u52a1\u5668\u53d8\u6162\u3002\u5176\u539f\u56e0\u901a\u5e38\u53ef\u4ee5\u8ffd\u6eaf\u5230 CDN \u4e0e\u6e90\u7ad9\u670d\u52a1\u5668\u7684\u4ea4\u4e92\u65b9\u5f0f\u3001\u4f60\u7684\u914d\u7f6e\uff0c\u4ee5\u53ca\u4f60\u7684\u7f51\u7edc\u73af\u5883\u3002\u90a3\u4e48\uff0c\u4e3a\u4ec0\u4e48\u4f1a\u51fa\u73b0\u201c\u4e3a\u4ec0\u4e48\u4f7f\u7528 CDN \u540e\u670d\u52a1\u5668\u53cd\u800c\u53d8\u6162\uff1f\u201d\u8fd9\u79cd\u60c5\u51b5\u5462\uff1f \u6709\u591a\u4e2a\u56e0\u7d20\u4f1a\u5bfc\u81f4\u8fd9\u79cd\u4ee4\u4eba\u6cae\u4e27\u7684\u7ed3\u679c\u3002\u670d\u52a1\u5668\u786c\u4ef6\u8d44\u6e90\u4e0d\u8db3\u53ef\u80fd\u4f1a\u5f62\u6210\u8bf7\u6c42\u74f6\u9888\uff1b\u7f13\u5b58\u8bbe\u7f6e\u53ef\u80fd\u5bfc\u81f4\u9891\u7e41\u672a\u547d\u4e2d\uff1b\u7b2c\u4e09\u65b9\u8d44\u6e90\u53ef\u80fd\u5b8c\u5168\u7ed5\u8fc7 CDN\uff1b\u7f51\u7edc\u95ee\u9898\uff0c\u4f8b\u5982\u8fb9\u7f18\u8282\u70b9\u8986\u76d6\u4e0d\u8db3\u6216 DNS 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\u5e76\u4e0d\u4f1a\u81ea\u52a8\u89e3\u51b3\u6240\u6709\u6027\u80fd\u95ee\u9898\u3002\u4e8b\u5b9e\u4e0a\uff0c\u5b83\u8fd8\u53ef\u80fd\u5f15\u5165\u65b0\u7684\u74f6\u9888\uff0c\u6216\u8005\u65e0\u6cd5\u5904\u7406\u539f\u672c\u5df2\u7ecf\u5b58\u5728\u7684\u95ee\u9898\u3002\u7406\u89e3\u8fd9\u4e9b\u539f\u56e0\uff0c\u80fd\u591f\u5e2e\u52a9\u4f60\u8bca\u65ad\u5e76\u4fee\u590d\u53d8\u6162\u7684\u6839\u6e90\u3002 \u4e0b\u8868\u603b\u7ed3\u4e86\u51e0\u7c7b\u4e3b\u8981\u7684\u6280\u672f\u56e0\u7d20\uff0c\u5373\u4f7f\u5927\u591a\u6570\u6d41\u91cf\u5df2\u7ecf\u7531 CDN \u5904\u7406\uff0c\u5b83\u4eec\u4ecd\u7136\u53ef\u80fd\u62d6\u6162\u4f60\u7684\u6e90\u7ad9\u670d\u52a1\u5668\u3002 \u6280\u672f\u56e0\u7d20 \u5b83\u5982\u4f55\u62d6\u6162\u6e90\u7ad9\u670d\u52a1\u5668 \u786c\u4ef6\u8d44\u6e90\u4e0d\u8db3 \u5373\u4f7f CDN \u5df2\u7ecf\u51cf\u5c11\u4e86\u4e00\u90e8\u5206\u6d41\u91cf\uff0c\u6e90\u7ad9\u670d\u52a1\u5668\u7684 CPU 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