{"id":34465,"date":"2026-07-23T15:55:51","date_gmt":"2026-07-23T07:55:51","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-tw\/choosing-cdn-origin-bandwidth-for-high-traffic-sites\/"},"modified":"2026-07-23T15:58:03","modified_gmt":"2026-07-23T07:58:03","slug":"choosing-cdn-origin-bandwidth-for-high-traffic-sites","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-tw\/knowledge-tc\/choosing-cdn-origin-bandwidth-for-high-traffic-sites\/","title":{"rendered":"\u5982\u4f55\u70ba\u9ad8\u4f75\u767c\u3001\u9ad8\u6d41\u91cf\u7db2\u7ad9\u9078\u64c7CDN\u548c\u6e90\u7ad9\u983b\u5bec"},"content":{"rendered":"<style>\n    table, th, td {\n        border: 1px solid black;\n        border-collapse: collapse;\n    }\n<\/style>\n<p>\u4f60\u9700\u8981\u6839\u64da\u7db2\u7ad9\u7684\u5cf0\u503c\u6d41\u91cf\u3001\u5167\u5bb9\u985e\u578b\u3001\u4f7f\u7528\u8005\u5206\u4f48\uff0c\u4ee5\u53ca\u662f\u5426\u90e8\u7f72<a target=\"_blank\" href=\"https:\/\/www.varidata.com\/zh-tw\/server\/hk\/cn2\/\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u6216\u5176\u4ed6\u5340\u57df\u57fa\u790e\u8a2d\u65bd\uff0c\u4f86\u9078\u64c7\u5408\u9069\u7684<a target=\"_blank\" href=\"https:\/\/www.varidata.com\/zh-tw\/knowledge-tc\/does-cdn-caching-really-slow-down-your-website\/\">CDN<\/a>\u548c\u6e90\u7ad9\u983b\u5bec\u3002\u6e96\u78ba\u7684\u983b\u5bec\u9810\u4f30\u6709\u52a9\u65bc\u63d0\u5347\u6548\u80fd\u3001\u53ef\u9760\u6027\u4e26\u63a7\u5236\u6210\u672c\u3002CDN\u900f\u904e\u6e1b\u5c11\u4f3a\u670d\u5668\u8ca0\u8f09\u3001\u964d\u4f4e\u983b\u5bec\u6d88\u8017\u4f86\u5e6b\u52a9\u4f60\u7bc0\u7701\u8cbb\u7528\uff0c\u540c\u6642\u9084\u80fd\u589e\u5f37\u5b89\u5168\u6027\u548c\u53ef\u64f4\u5c55\u6027\u3002\u4e0b\u8868\u5c55\u793a\u4e86\u8fd1\u671f\u500b\u6848\u7814\u7a76\u4e2d\uff0c\u7e3d\u7d50\u51fa\u7684\u95dc\u9375\u6210\u672c\u7bc0\u7d04\u6536\u76ca\uff1a<\/p>\n<div fullwidth=\"\" class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 75px;\">\n<colgroup>\n<col style=\"min-width: 25px;\">\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>\u6536\u76ca<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u8aaa\u660e<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u6210\u672c\u7bc0\u7d04\u9ede<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u964d\u4f4e\u4f3a\u670d\u5668\u8ca0\u8f09<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>CDN\u5c07\u5167\u5bb9\u5206\u767c\u5230\u5168\u7403\u5404\u5730<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6e1b\u5c11\u7dad\u904b\u548c\u57fa\u790e\u8a2d\u65bd\u6210\u672c<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u964d\u4f4e\u983b\u5bec\u6d88\u8017<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>CDN\u7e2e\u77ed\u8cc7\u6599\u50b3\u8f38\u8ddd\u96e2<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6e1b\u5c11\u8cc7\u6599\u50b3\u8f38\u8cbb\u7528<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u63d0\u9ad8\u5b89\u5168\u6027<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>CDN\u53ef\u9632\u79a6DDoS\u653b\u64ca<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u907f\u514d\u7576\u6a5f\uff0c\u6e1b\u5c11\u6f5b\u5728\u6536\u5165\u640d\u5931<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u63d0\u5347SEO\u6392\u540d<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u66f4\u5feb\u7684\u9801\u9762\u8f09\u5165\u901f\u5ea6<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u66f4\u9ad8\u66dd\u5149\u53ef\u5e36\u4f86\u66f4\u591a\u6d41\u91cf\u548c\u6536\u5165<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u589e\u5f37\u53ef\u64f4\u5c55\u6027<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>CDN\u53ef\u5728\u6d41\u91cf\u9ad8\u5cf0\u671f\u5feb\u901f\u64f4\u5c55<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u7121\u9700\u984d\u5916\u57fa\u790e\u8a2d\u65bd\u6295\u5165\u5373\u53ef\u7372\u5f97\u5f48\u6027<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>\u95dc\u9375\u8981\u9ede<\/h2>\n<ul>\n<li>\n<p>\u9810\u4f30\u7db2\u7ad9\u5cf0\u503c\u6d41\u91cf\u4ee5\u78ba\u5b9a\u983b\u5bec\u9700\u6c42\u3002\u4f7f\u7528 Google Analytics \u7b49\u5de5\u5177\u8ffd\u8e64\u6d41\u91cf\u6a21\u5f0f\uff0c\u70ba\u7a81\u767c\u6d41\u91cf\u505a\u597d\u6e96\u5099\u3002<\/p>\n<\/li>\n<li>\n<p>\u9078\u64c7\u5177\u5099\u5f37\u5927\u5feb\u53d6\u7b56\u7565\u7684CDN\u3002\u9ad8\u6548\u7684\u5feb\u53d6\u53ef\u5c07\u983b\u5bec\u6d88\u8017\u964d\u4f4e\u591a\u905480%\uff0c\u63d0\u5347\u6548\u80fd\u4e26\u964d\u4f4e\u6210\u672c\u3002<\/p>\n<\/li>\n<li>\n<p>\u6839\u64da\u4f7f\u7528\u8005\u5206\u4f48\u9078\u64c7CDN\u670d\u52d9\u3002\u5177\u5099\u5168\u7403\u7bc0\u9ede\u4f48\u5c40\u7684CDN\u53ef\u4ee5\u70ba\u5404\u5730\u5340\u4f7f\u7528\u8005\u63d0\u4f9b\u66f4\u5feb\u7684\u5167\u5bb9\u50b3\u905e\u9ad4\u9a57\u3002<\/p>\n<\/li>\n<li>\n<p>\u5b9a\u671f\u76e3\u63a7\u5feb\u53d6\u6548\u80fd\u3002\u900f\u904e\u8abf\u6574\u5feb\u53d6\u898f\u5247\u6e1b\u5c11\u5feb\u53d6\u672a\u547d\u4e2d\uff0c\u907f\u514d\u983b\u5bec\u4f7f\u7528\u4e0a\u5347\u548c\u7db2\u7ad9\u8b8a\u6162\u3002<\/p>\n<\/li>\n<li>\n<p>\u5b9a\u671f\u5be9\u67e5CDN\u548c\u6e90\u7ad9\u983b\u5bec\u6210\u672c\u3002\u51fa\u53e3\u6d41\u91cf\u8cbb\u7528\u6703\u986f\u8457\u5f71\u97ff\u9810\u7b97\uff0c\u61c9\u70ba\u7570\u5e38\u652f\u51fa\u8a2d\u5b9a\u8b66\u793a\u3002<\/p>\n<\/li>\n<\/ul>\n<h2>\u5f71\u97ff\u983b\u5bec\u7684\u56e0\u7d20<\/h2>\n<h3>\u5cf0\u503c\u6d41\u91cf<\/h3>\n<p>\u4f60\u5fc5\u9808\u4e86\u89e3\u7db2\u7ad9\u7684\u5cf0\u503c\u6d41\u91cf\uff0c\u624d\u80fd\u6e96\u78ba\u4f30\u7b97\u983b\u5bec\u9700\u6c42\u3002\u5cf0\u503c\u6d41\u91cf\u6307\u5728\u9ad8\u5cf0\u6642\u6bb5\uff08\u5982\u79d2\u6bba\u3001\u76f4\u64ad\u6d3b\u52d5\uff09\u5167\uff0c\u8a2a\u554f\u91cf\u548c\u8cc7\u6599\u50b3\u8f38\u91cf\u7684\u6700\u9ad8\u6c34\u6e96\u3002\u6d41\u91cf\u6fc0\u589e\u53ef\u80fd\u8b93\u983b\u5bec\u9700\u6c42\u9060\u8d85\u65e5\u5e38\u6c34\u6e96\uff0c\u5982\u679c\u4e0d\u63d0\u524d\u898f\u5283\uff0c\u5c31\u5bb9\u6613\u51fa\u73fe\u8b8a\u6162\u751a\u81f3\u7576\u6a5f\u3002Google Analytics 4 \u548c Google Search Console \u7b49\u5de5\u5177\u53ef\u4ee5\u5e6b\u52a9\u4f60\u8ffd\u8e64\u6d41\u91cf\u6a21\u5f0f\u4e26\u8b58\u5225\u9ad8\u5cf0\u6642\u6bb5\u3002\u7576\u4f60\u9078\u64c7\u4f7f\u7528CDN\u6642\uff0c\u53ef\u4ee5\u900f\u904e\u5c07\u5167\u5bb9\u5206\u767c\u5230\u591a\u53f0\u4f3a\u670d\u5668\u4f86\u66f4\u597d\u5730\u61c9\u5c0d\u7a81\u767c\u9700\u6c42\u3002\u63d0\u5347\u5feb\u53d6\u547d\u4e2d\u7387\u4e5f\u80fd\u6e1b\u8f15\u6e90\u7ad9\u58d3\u529b\u3002\u4f8b\u5982\uff0c\u5c07\u5feb\u53d6\u547d\u4e2d\u7387\u5f9e90%\u63d0\u9ad8\u523095%\uff0c\u5c31\u80fd\u5c07\u56de\u6e90\u8acb\u6c42\u6578\u91cf\u6e1b\u5c11\u4e00\u534a\uff0c\u986f\u8457\u964d\u4f4e\u983b\u5bec\u6d88\u8017\u3002<\/p>\n<blockquote>\n<p>\u63d0\u793a\uff1a\u6c38\u9060\u6309\u300c\u6700\u9ad8\u53ef\u80fd\u6d41\u91cf\u300d\u800c\u4e0d\u662f\u300c\u5e73\u5747\u6d41\u91cf\u300d\u4f86\u898f\u5283\u3002<\/p>\n<\/blockquote>\n<div fullwidth=\"\" 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>\u6d41\u91cf\u7d1a\u5225<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u983b\u5bec\u9700\u6c42<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4f4e\uff081,000 \u8a2a\u5ba2\/\u6708\uff09<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>1\u20132 GB<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4e2d\uff0810,000 \u8a2a\u5ba2\/\u6708\uff09<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>10\u201320 GB<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u9ad8\uff08100,000 \u8a2a\u5ba2\/\u6708\uff09<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>100\u2013200 GB<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3>\u4f7f\u7528\u8005\u5206\u4f48<\/h3>\n<p>\u4f7f\u7528\u8005\u6240\u5728\u5340\u57df\u6703\u5f71\u97ff\u4f60\u9700\u8981\u591a\u5c11\u983b\u5bec\uff0c\u4ee5\u53ca\u5728\u54ea\u4e9b\u5340\u57df\u9700\u8981\u66f4\u591a\u983b\u5bec\u3002\u5982\u679c\u4f60\u7684\u53d7\u773e\u662f\u5168\u7403\u4f7f\u7528\u8005\uff0c\u5c31\u5fc5\u9808\u70ba\u591a\u5730\u5340\u63d0\u4f9b\u5feb\u901f\u5167\u5bb9\u50b3\u905e\u3002CDN\u900f\u904e\u5728\u4e0d\u540c\u5340\u57df\u90e8\u7f72\u7bc0\u9ede\u4f86\u63d0\u5347\u5730\u7406\u8986\u84cb\uff0c\u5f9e\u800c\u70ba\u5404\u5730\u4f7f\u7528\u8005\u63d0\u4f9b\u66f4\u9ad8\u7684\u901f\u5ea6\u548c\u53ef\u9760\u6027\u3002\u5149\u7e96\u7b49\u9ad8\u901f\u9023\u7dda\u53ef\u5e36\u4f86\u6700\u4f73\u9ad4\u9a57\uff0c\u800cDSL\u6216\u885b\u661f\u7db2\u8def\u5247\u53ef\u80fd\u9650\u5236\u983b\u5bec\u3002\u7576\u4f60\u9078\u64c7\u64c1\u6709\u5ee3\u6cdb\u7bc0\u9ede\u5206\u4f48\u7684CDN\u670d\u52d9\u5546\u6642\uff0c\u5c31\u80fd\u5728\u9ad8\u9700\u6c42\u5834\u666f\u4e0b\u4fdd\u6301\u826f\u597d\u7684\u64f4\u5c55\u6027\u548c\u50b3\u8f38\u901f\u5ea6\u3002<\/p>\n<ul>\n<li>\n<p>\u4f3a\u670d\u5668\u5206\u4f48\u8d8a\u5ee3\uff0c\u5167\u5bb9\u50b3\u8f38\u901f\u5ea6\u8d8a\u5feb\u3002<\/p>\n<\/li>\n<li>\n<p>\u66f4\u9ad8\u983b\u5bec\u53ef\u652f\u63f4\u66f4\u5feb\u7684\u8cc7\u6599\u50b3\u8f38\u80fd\u529b\u3002<\/p>\n<\/li>\n<li>\n<p>\u826f\u597d\u7684\u53ef\u64f4\u5c55\u6027\u8b93\u7db2\u7ad9\u5728\u64f4\u5f35\u6642\u4ecd\u4fdd\u6301\u6548\u80fd\u7a69\u5b9a\u3002<\/p>\n<\/li>\n<\/ul>\n<h3>\u5167\u5bb9\u985e\u578b<\/h3>\n<p>\u4f60\u63d0\u4f9b\u7684\u5167\u5bb9\u985e\u578b\u4e5f\u6703\u6539\u8b8a\u983b\u5bec\u9700\u6c42\u3002\u7d14\u6587\u5b57\u9801\u9762\u4f54\u7528\u7684\u983b\u5bec\u5f88\u5c11\uff0c\u800c\u5716\u7247\u3001\u5f71\u7247\u8207\u4e0b\u8f09\u5167\u5bb9\u6703\u986f\u8457\u63d0\u9ad8\u983b\u5bec\u4f54\u7528\u3002\u5c24\u5176\u662f\u4f7f\u7528\u81ea\u9069\u61c9\u6280\u8853\u7684\u4e32\u6d41\u5f71\u7247\uff0c\u6703\u6839\u64da\u4f7f\u7528\u8005\u7db2\u8def\u72c0\u6cc1\u81ea\u52d5\u8abf\u6574\u756b\u8cea\uff0c\u5f9e\u800c\u5e6b\u52a9\u63a7\u7ba1\u983b\u5bec\u3002\u500b\u4eba\u5316\u9801\u9762\u7b49\u52d5\u614b\u5167\u5bb9\u6bd4\u975c\u614b\u6a94\u6848\u66f4\u8017\u8cbb\u983b\u5bec\u3002\u900f\u904e\u512a\u5316\u6a94\u6848\u5927\u5c0f\u548c\u5229\u7528\u5feb\u53d6\u7b56\u7565\uff0c\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u983b\u5bec\u4f7f\u7528\u3002\u5982\u679c\u4f60\u63d0\u4f9b\u53ef\u4e0b\u8f09\u6a94\u6848\u6216\u9ad8\u89e3\u6790\u5ea6\u5a92\u9ad4\uff0c\u5c31\u5fc5\u9808\u70ba\u66f4\u9ad8\u983b\u5bec\u505a\u597d\u898f\u5283\u3002<\/p>\n<ul>\n<li>\n<p>\u6587\u5b57\u5167\u5bb9\u5e7e\u4e4e\u4e0d\u4f54\u7528\u591a\u5c11\u983b\u5bec\u3002<\/p>\n<\/li>\n<li>\n<p>\u5716\u7247\u3001\u5f71\u7247\u7b49\u5bcc\u5a92\u9ad4\u6703\u986f\u8457\u589e\u52a0\u983b\u5bec\u6d88\u8017\u3002<\/p>\n<\/li>\n<li>\n<p>\u81ea\u9069\u61c9\u5f71\u97f3\u4e32\u6d41\u6703\u6839\u64da\u7db2\u8def\u901f\u5ea6\u5339\u914d\u756b\u8cea\uff0c\u5f9e\u800c\u7bc0\u7701\u983b\u5bec\u3002<\/p>\n<\/li>\n<\/ul>\n<h2>\u983b\u5bec\u8a08\u7b97<\/h2>\n<h3>\u9700\u6c42\u9810\u4f30<\/h3>\n<p>\u5728\u9078\u64c7CDN\u548c\u6e90\u7ad9\u8cc7\u6e90\u4e4b\u524d\uff0c\u4f60\u9700\u8981\u5148\u9810\u4f30\u7db2\u7ad9\u7684\u983b\u5bec\u9700\u6c42\u3002\u9019\u6709\u52a9\u65bc\u907f\u514d\u6548\u80fd\u74f6\u9838\u548c\u610f\u5916\u6210\u672c\u3002\u53ef\u4ee5\u6309\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\u4f30\u7b97\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u78ba\u5b9a\u8a08\u91cf\u55ae\u4f4d<\/strong><br \/>\u9996\u5148\u8981\u6c7a\u5b9a\u4ee5\u4ec0\u9ebc\u55ae\u4f4d\u4f86\u8861\u91cf\u983b\u5bec\uff0c\u5982\u6bcf\u79d2\u5146\u4f4d\u5143\uff08Mbps\uff09\u3001\u6bcf\u6708GB\u6d41\u91cf\u7b49\u3002\u5927\u591a\u6578\u7db2\u7ad9\u6703\u7528GB\u6216TB\u4f86\u7d71\u8a08\u6bcf\u6708\u8cc7\u6599\u50b3\u8f38\u91cf\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u4f30\u7b97\u6bcf\u6b21\u64cd\u4f5c\u7684\u8cc7\u6599\u91cf<\/strong><br \/>\u8a08\u7b97\u4e00\u6b21\u9801\u9762\u8f09\u5165\u3001\u4e00\u6b21\u5f71\u7247\u64ad\u653e\u6216\u4e00\u6b21\u6a94\u6848\u4e0b\u8f09\u7684\u5927\u81f4\u8cc7\u6599\u5927\u5c0f\u3002\u4f8b\u5982\uff0c\u4e00\u500b\u5178\u578b\u7db2\u9801\u53ef\u80fd\u662f 2 MB\uff0c\u800c\u4e00\u500b\u4e32\u6d41\u53ef\u80fd\u5728 3 Mbps \u5de6\u53f3\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u78ba\u5b9a\u64cd\u4f5c\u983b\u7387<\/strong><br \/>\u4e86\u89e3\u4f7f\u7528\u8005\u6bcf\u5929\u57f7\u884c\u9019\u4e9b\u64cd\u4f5c\u7684\u6b21\u6578\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u5206\u6790\u5de5\u5177\u7d71\u8a08\u9801\u9762\u700f\u89bd\u91cf\u3001\u4e0b\u8f09\u91cf\u6216\u5f71\u7247\u64ad\u653e\u6b21\u6578\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u4f7f\u7528\u516c\u5f0f\u9032\u884c\u8a08\u7b97<\/strong><br \/>\u5c07\u55ae\u6b21\u8cc7\u6599\u91cf\u4e58\u4ee5\u64cd\u4f5c\u6b21\u6578\uff0c\u5373\u53ef\u5f97\u5230\u6bcf\u65e5\u6216\u6bcf\u6708\u7684\u983b\u5bec\u9810\u4f30\u503c\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u52a0\u5165\u5197\u9918\u548c\u5b89\u5168\u88d5\u91cf<\/strong><br \/>\u4e00\u5b9a\u8981\u70ba\u7a81\u767c\u6d41\u91cf\u9810\u7559\u984d\u5916\u5bb9\u91cf\u3002\u5c0d\u65bc\u9ad8\u4f75\u767c\u7db2\u7ad9\uff0c\u9810\u755920%\u5de6\u53f3\u7684\u5b89\u5168\u88d5\u91cf\u662f\u8f03\u5e38\u898b\u7684\u505a\u6cd5\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u9810\u6e2c\u5206\u6790\u53ef\u4ee5\u9032\u4e00\u6b65\u63d0\u5347\u9810\u4f30\u7cbe\u5ea6\u3002\u8a31\u591a\u4f01\u696d\u6703\u5206\u6790\u6b77\u53f2\u8cc7\u6599\u4f86\u9810\u6e2c\u672a\u4f86\u983b\u5bec\u9700\u6c42\u3002\u4f8b\u5982\uff0c\u4e00\u5bb6\u5168\u7403\u9867\u554f\u516c\u53f8\u4f7f\u7528\u9810\u6e2c\u6a21\u578b\u70ba85\u500b\u8fa6\u516c\u5ba4\u898f\u5283\u8996\u8a0a\u6703\u8b70\u983b\u5bec\uff0c\u4e26\u5efa\u69cb\u4e86\u4e92\u52d5\u5f0f\u5100\u8868\u677f\u5354\u52a9\u5404\u65b9\u6c7a\u7b56\u3002<\/p>\n<h3>\u8a08\u7b97\u516c\u5f0f<\/h3>\n<p>\u4f60\u53ef\u4ee5\u4f7f\u7528\u696d\u754c\u5e38\u7528\u516c\u5f0f\u4f86\u8a08\u7b97\u6240\u9700\u983b\u5bec\uff0c\u9019\u6709\u52a9\u65bc\u540c\u6642\u898f\u5283CDN\u548c\u6e90\u7ad9\u983b\u5bec\u3002<\/p>\n<div fullwidth=\"\" 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>\u516c\u5f0f\u985e\u578b<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u516c\u5f0f<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6708\u5ea6\u8cc7\u6599\u50b3\u8f38\u9810\u4f30<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\uff08\u5e73\u5747\u9801\u9762\u5927\u5c0fMB \u00d7 \u6708\u8a2a\u554f\u91cf \u00d7 \u6bcf\u6b21\u8a2a\u554f\u5e73\u5747\u700f\u89bd\u9801\u9762\u6578\uff09\u00f7 1,024 = \u9810\u4f30\u6708\u5ea6\u983b\u5bec\uff08GB\uff09<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4e32\u6d41\u983b\u5bec<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u540c\u6642\u89c0\u770b\u4eba\u6578 \u00d7 \u78bc\u7387\uff08Mbps\uff09 = \u6240\u9700\u57e0\u5bb9\u91cf\uff08Mbps\uff09<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u9801\u9762\u5e73\u5747\u5927\u5c0f\u70ba 2 MB\uff0c\u6bcf\u6708\u6709 100,000 \u540d\u8a2a\u5ba2\uff0c\u6bcf\u4f4d\u8a2a\u5ba2\u5e73\u5747\u700f\u89bd 5 \u500b\u9801\u9762\uff0c\u5247\u9810\u4f30\u6708\u5ea6\u983b\u5bec\u70ba\uff1a<br \/>\uff082 \u00d7 100,000 \u00d7 5\uff09\u00f7 1,024 \u2248 976 GB<\/p>\n<p>\u5728\u9078\u64c7CDN\u89e3\u6c7a\u65b9\u6848\u6642\uff0c\u8981\u8a18\u4f4f\u5feb\u53d6\u547d\u4e2d\u7387\uff08Cache Hit Ratio\uff0c\u7c21\u7a31 CHR\uff09\u6703\u76f4\u63a5\u5f71\u97ff\u6e90\u7ad9\u983b\u5bec\u9700\u6c42\uff1a<\/p>\n<ul>\n<li>\n<p>CHR \u8d8a\u9ad8\uff0c\u8d8a\u591a\u8acb\u6c42\u7531CDN\u5feb\u53d6\u76f4\u63a5\u56de\u61c9\u3002<\/p>\n<\/li>\n<li>\n<p>\u56de\u6e90\u8acb\u6c42\u8d8a\u5c11\uff0c\u6e90\u7ad9\u58d3\u529b\u8d8a\u4f4e\u3002<\/p>\n<\/li>\n<li>\n<p>\u6e90\u7ad9\u9700\u8981\u627f\u64d4\u7684\u983b\u5bec\u4e5f\u96a8\u4e4b\u6e1b\u5c11\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5982\u679cCDN\u7684CHR\u9054\u523095%\uff0c\u90a3\u9ebc\u53ea\u67095%\u7684\u8acb\u6c42\u6703\u56de\u6e90\u3002\u8207\u5b8c\u5168\u4e0d\u4f7f\u7528\u5feb\u53d6\u7684\u7ad9\u9ede\u76f8\u6bd4\uff0c\u9019\u53ef\u4ee5\u5c07\u6e90\u7ad9\u983b\u5bec\u9700\u6c42\u964d\u4f4e\u7d0420\u500d\u3002<\/p>\n<h3>\u793a\u4f8b\u5834\u666f<\/h3>\n<p>\u4e0b\u9762\u900f\u904e\u4e00\u4e9b\u771f\u5be6\u5834\u666f\uff0c\u4f86\u770b\u770b\u9019\u4e9b\u8a08\u7b97\u5982\u4f55\u843d\u5730\uff1a<\/p>\n<div fullwidth=\"\" class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 125px;\">\n<colgroup>\n<col style=\"min-width: 25px;\">\n<col style=\"min-width: 25px;\">\n<col style=\"min-width: 25px;\">\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>\u5834\u666f<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u65e5\u8a2a\u5ba2\u6578<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u5e73\u5747\u9801\u9762\u5927\u5c0f<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u6bcf\u65e5\u983b\u5bec<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u6bcf\u6708\u983b\u5bec<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u500b\u4eba\u90e8\u843d\u683c<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>500<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>1 MB<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>500 MB<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>15 GB<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6578\u4f4d\u4f5c\u54c1\u96c6<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>200<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>10 MB<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>2,000 MB<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>60 GB<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u5047\u8a2d\u4f60\u71df\u904b\u7684\u662f\u4e00\u500b\u6bcf\u65e5 200 \u8a2a\u5ba2\u3001\u5e73\u5747\u9801\u9762\u5927\u5c0f\u70ba 10 MB \u7684\u6578\u4f4d\u4f5c\u54c1\u96c6\u7db2\u7ad9\u3002\u6bcf\u65e5\u983b\u5bec\u5927\u7d04\u70ba 2,000 MB\uff082 GB\uff09\uff0c\u6bcf\u6708\u983b\u5bec\u7d04\u70ba 60 GB\u3002\u5982\u679c\u4f60\u9078\u64c7CDN\u4e26\u5be6\u73fe90%\u7684\u5feb\u53d6\u547d\u4e2d\u7387\uff0c\u90a3\u9ebc\u53ea\u670910%\u7684\u8acb\u6c42\u6703\u56de\u6e90\uff0c\u6e90\u7ad9\u6bcf\u6708\u53ea\u9700\u627f\u64d4\u7d04 6 GB \u983b\u5bec\u3002<\/p>\n<blockquote>\n<p>\u63d0\u793a\uff1a\u5728\u9078\u64c7CDN\u670d\u52d9\u5546\u6642\uff0c\u8981\u6bd4\u8f03\u5176\u5feb\u53d6\u6548\u7387\u548c\u670d\u52d9\u54c1\u8cea\u3002\u4e00\u4e9b\u591aCDN\uff08pan-CDN\uff09\u65b9\u6848\u80fd\u63d0\u4f9b\u66f4\u9ad8\u541e\u5410\u8207\u66f4\u4f4e\u6ce2\u52d5\uff0c\u800c\u53e6\u4e00\u4e9b\u65b9\u6848\u6210\u672c\u66f4\u4f4e\u4f46\u6548\u80fd\u6ce2\u52d5\u66f4\u5927\u3002\u52d9\u5fc5\u5728\u6210\u672c\u3001\u54c1\u8cea\u548c\u4f7f\u7528\u8005\u9ad4\u9a57\u4e4b\u9593\u53d6\u5f97\u5e73\u8861\u3002<\/p>\n<\/blockquote>\n<div fullwidth=\"\" class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 221px;\">\n<colgroup>\n<col style=\"width: 146px;\">\n<col style=\"min-width: 25px;\">\n<col style=\"min-width: 25px;\">\n<col style=\"min-width: 25px;\"><\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\" colwidth=\"146\">\n<p>\u591aCDN\u985e\u578b<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u6210\u672c\u6c34\u6e96<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u5e73\u5747\u670d\u52d9\u54c1\u8cea<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u4f7f\u7528\u8005\u9ad4\u9a57\u6ce2\u52d5<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\" colwidth=\"146\">\n<p>pan-CDN1<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6700\u9ad8<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6700\u4f73<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>65% \u541e\u5410\u7387\u8655\u65bc\u6700\u512a\u6c34\u6e96<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\" colwidth=\"146\">\n<p>pan-CDN2<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4e2d\u7b49<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4e2d\u7b49<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6ce2\u52d5\u8f03\u5927<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\" colwidth=\"146\">\n<p>pan-CDN3<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u8f03\u4f4e<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u8f03\u4f4e<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6ce2\u52d5\u8f03\u9ad8<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\" colwidth=\"146\">\n<p>pan-CDN4<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6700\u4f4e<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6700\u4f4e<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6ce2\u52d5\u975e\u5e38\u9ad8<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u4f60\u61c9\u59cb\u7d42\u9078\u64c7\u8207\u81ea\u8eab\u6d41\u91cf\u6a21\u5f0f\u548c\u6548\u80fd\u9700\u6c42\u5339\u914d\u7684CDN\u65b9\u6848\u3002\u900f\u904e\u7cbe\u78ba\u8a08\u7b97\u8207\u5408\u7406\u898f\u5283\uff0c\u53ef\u4ee5\u70ba\u6240\u6709\u4f7f\u7528\u8005\u63d0\u4f9b\u5feb\u901f\u800c\u7a69\u5b9a\u7684\u5b58\u53d6\u9ad4\u9a57\u3002<\/p>\n<h2>\u9078\u64c7CDN\u7279\u6027<\/h2>\n<p>\u5728\u70ba\u9ad8\u4f75\u767c\u3001\u9ad8\u6d41\u91cf\u5834\u666f\u9078\u64c7CDN\u6642\uff0c\u4f60\u5fc5\u9808\u95dc\u6ce8\u90a3\u4e9b\u5c0d\u6548\u80fd\u3001\u53ef\u9760\u6027\u548c\u53ef\u64f4\u5c55\u6027\u5f71\u97ff\u6700\u5927\u7684\u529f\u80fd\u3002\u4e0d\u540cCDN\u63d0\u4f9b\u5546\u5404\u6709\u5074\u91cd\uff0c\u4f60\u9700\u8981\u7d50\u5408\u81ea\u8eab\u696d\u52d9\u8ca0\u8f09\u548c\u76ee\u6a19\u4f86\u505a\u6bd4\u8f03\u3002<\/p>\n<h3>\u5feb\u53d6\u7b56\u7565<\/h3>\n<p>\u5feb\u53d6\u662f\u6e1b\u5c11\u6e90\u7ad9\u983b\u5bec\u6d88\u8017\u7684\u6700\u6709\u6548\u65b9\u5f0f\u4e4b\u4e00\u3002\u4f60\u53ef\u4ee5\u5229\u7528CDN\u5c07\u71b1\u9580\u5167\u5bb9\u5feb\u53d6\u5230\u96e2\u4f7f\u7528\u8005\u66f4\u8fd1\u7684\u7bc0\u9ede\uff0c\u5f9e\u800c\u6e1b\u5c11\u56de\u6e90\u8acb\u6c42\u4e26\u52a0\u5feb\u8f09\u5165\u901f\u5ea6\u3002<\/p>\n<ul>\n<li>\n<p>\u5c0d\u65bc\u71b1\u9580\u5167\u5bb9\uff0c\u5feb\u53d6\u53ef\u4ee5\u5c07\u983b\u5bec\u6d88\u8017\u6e1b\u5c11 70\u201380%\u3002<\/p>\n<\/li>\n<li>\n<p>\u512a\u5316\u826f\u597d\u7684\u5feb\u53d6\u914d\u7f6e\uff0c\u5feb\u53d6\u547d\u4e2d\u7387\u5e38\u5e38\u80fd\u8d85\u904e 90%\u3002<\/p>\n<\/li>\n<li>\n<p>\u5feb\u53d6\u53ef\u5c07\u8655\u7406\u6548\u7387\u63d0\u5347\u6700\u9ad8\u7d04 30%\uff0c\u4e26\u964d\u4f4e\u80fd\u6e90\u6d88\u8017\u6700\u9ad8\u7d04 30%\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u4f60\u61c9\u9078\u64c7\u63d0\u4f9b\u5f48\u6027\u5feb\u53d6\u898f\u5247\u548c\u5373\u6642\u5feb\u53d6\u6e05\u9664\u80fd\u529b\u7684CDN\u670d\u52d9\u5546\u3002\u4f8b\u5982\uff0cFastly \u63d0\u4f9b\u5168\u7403\u5373\u6642\u6e05\u5feb\u53d6\u548c\u9762\u5411\u958b\u767c\u8005\u7684\u7cbe\u7d30\u63a7\u5236\uff1bGoogle Media CDN \u900f\u904e\u6df1\u5ea6\u5206\u5c64\u5feb\u53d6\u4f86\u5be6\u73fe\u9ad8\u56de\u6e90\u5378\u8f09\u7387\uff1bCloudflare \u548c Akamai \u5247\u63d0\u4f9b\u53ef\u7a0b\u5f0f\u5316\u5feb\u53d6\u8207\u908a\u7de3\u908f\u8f2f\u3002\u9019\u4e9b\u80fd\u529b\u6709\u52a9\u65bc\u4f60\u5f9e\u5bb9\u61c9\u5c0d\u7a81\u767c\u6d41\u91cf\u9ad8\u5cf0\uff0c\u4fdd\u969c\u7db2\u7ad9\u7a69\u5b9a\u904b\u884c\u3002<\/p>\n<blockquote>\n<p>\u63d0\u793a\uff1a\u70ba\u5716\u7247\u3001\u6307\u4ee4\u78bc\u3001\u6a23\u5f0f\u8868\u7b49\u975c\u614b\u8cc7\u6e90\u8a2d\u5b9a\u9577\u6642\u9593\u5feb\u53d6\uff0c\u5c0d\u52d5\u614b\u5167\u5bb9\u5247\u4f7f\u7528\u8f03\u77ed\u5feb\u53d6\u6642\u9593\u4ee5\u4fdd\u8b49\u65b0\u9bae\u5ea6\u3002<\/p>\n<\/blockquote>\n<h3>\u5b89\u5168\u8207DDoS\u9632\u8b77<\/h3>\n<p>\u5b89\u5168\u529f\u80fd\u5728\u983b\u5bec\u898f\u5283\u548c\u53ef\u9760\u6027\u65b9\u9762\u540c\u6a23\u81f3\u95dc\u91cd\u8981\u3002CDN\u53ef\u4ee5\u5e6b\u52a9\u4f60\u9632\u79a6DDoS\u653b\u64ca\u548c\u5176\u4ed6\u7db2\u8def\u5a01\u8105\uff0c\u4f60\u9700\u8981\u8db3\u5920\u5f37\u7684\u9632\u8b77\u80fd\u529b\u4f86\u78ba\u4fdd\u5728\u9ad8\u6d41\u91cf\u6216\u906d\u53d7\u653b\u64ca\u6642\u4f9d\u7136\u4fdd\u6301\u4e0a\u7dda\u3002<\/p>\n<ul>\n<li>\n<p>\u900f\u904e\u5373\u6642\u76e3\u63a7\u53ca\u65e9\u767c\u73fe\u653b\u64ca\u8de1\u8c61\uff0c\u4fbf\u65bc\u5feb\u901f\u56de\u61c9\u3002<\/p>\n<\/li>\n<li>\n<p>\u5c0d\u653b\u64ca\u985e\u578b\u9032\u884c\u5206\u985e\uff0c\u6709\u52a9\u65bc\u63a1\u7528\u6b63\u78ba\u7684\u9632\u79a6\u7b56\u7565\u3002<\/p>\n<\/li>\n<li>\n<p>\u591a\u5c64\u6b21\u9632\u8b77\u53ef\u4ee5\u5316\u89e3\u653b\u64ca\u4e26\u7dad\u6301\u670d\u52d9\u53ef\u7528\u6027\u3002<\/p>\n<\/li>\n<li>\n<p>CDN\u53ef\u5728\u6d41\u91cf\u5230\u9054\u6e90\u7ad9\u524d\uff0c\u6514\u622a 10\u2013100 Gbit\/s \u898f\u6a21\u7684\u653b\u64ca\u6d41\u91cf\u3002<\/p>\n<\/li>\n<\/ul>\n<p>Cloudflare \u4ee5\u5438\u6536\u8d85\u5927\u898f\u6a21\u653b\u64ca\u7684\u80fd\u529b\u548c\u5ee3\u6cdb\u7684\u5b89\u5168\u8207\u6a5f\u5668\u4eba\u9632\u8b77\u800c\u8457\u7a31\uff1bAkamai \u5728\u6536\u8cfc Noname \u5f8c\u6574\u5408\u4e86\u66f4\u5f37\u5927\u7684\u5b89\u5168\u80fd\u529b\uff1bAWS CloudFront \u5247\u8207 AWS Shield \u548c WAF 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