{"id":210299,"date":"2025-10-24T10:57:03","date_gmt":"2025-10-24T02:57:03","guid":{"rendered":"https:\/\/www.server.hk\/blog\/210299\/"},"modified":"2025-10-24T10:57:04","modified_gmt":"2025-10-24T02:57:04","slug":"cdn-353","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/210299\/","title":{"rendered":"\u8fb9\u7f18\u8d4b\u80fdCDN\uff1a\u5f00\u542f\u7f51\u7edc\u4f18\u5316\u7684\u65b0\u7eaa\u5143"},"content":{"rendered":"<p>\u968f\u7740\u4e92\u8054\u7f51\u5e94\u7528\u5bf9\u65f6\u5ef6\u3001\u53ef\u9760\u6027\u548c\u5b89\u5168\u6027\u7684\u8981\u6c42\u4e0d\u65ad\u63d0\u9ad8\uff0c\u4f20\u7edf\u4ee5\u4e2d\u5fc3\u5316\u6570\u636e\u4e2d\u5fc3\u4e3a\u6838\u5fc3\u7684CDN\u67b6\u6784\u5df2\u96be\u4ee5\u5b8c\u5168\u6ee1\u8db3\u65b0\u4e00\u4ee3\u4e1a\u52a1\u9700\u6c42\u3002\u901a\u8fc7\u5728\u7f51\u7edc\u8fb9\u7f18\u5f15\u5165\u8ba1\u7b97\u4e0e\u5b58\u50a8\u80fd\u529b\u2014\u2014\u5373\u201c\u8fb9\u7f18\u8d4b\u80fdCDN\u201d\uff0c\u53ef\u4ee5\u663e\u8457\u964d\u4f4e\u9996\u5b57\u8282\u65f6\u95f4\uff08TTFB\uff09\u3001\u63d0\u5347\u7f13\u5b58\u547d\u4e2d\u7387\u5e76\u4e3a\u5b9e\u65f6\u5e94\u7528\u63d0\u4f9b\u66f4\u63a5\u8fd1\u7528\u6237\u7684\u6267\u884c\u73af\u5883\u3002\u672c\u6587\u9762\u5411\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u4e0e\u5f00\u53d1\u8005\uff0c\u6df1\u5165\u89e3\u6790\u8fb9\u7f18\u8d4b\u80fdCDN\u7684\u539f\u7406\u3001\u5173\u952e\u6280\u672f\u5b9e\u73b0\u3001\u5b9e\u9645\u5e94\u7528\u573a\u666f\u3001\u4e0e\u4f20\u7edf\u65b9\u6848\u7684\u4f18\u52bf\u5bf9\u6bd4\uff0c\u5e76\u7ed9\u51fa\u9009\u8d2d\u4e0e\u90e8\u7f72\u5efa\u8bae\uff0c\u5e2e\u52a9\u8bfb\u8005\u5728\u9009\u62e9\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u6216\u6d77\u5916\u670d\u52a1\u5668\u65f6\u66f4\u6709\u9488\u5bf9\u6027\u5730\u8bc4\u4f30CDN\u80fd\u529b\u3002<\/p>\n<h2>\u8fb9\u7f18\u8d4b\u80fdCDN\u7684\u57fa\u672c\u539f\u7406\u4e0e\u67b6\u6784\u8981\u70b9<\/h2>\n<p>\u8fb9\u7f18\u8d4b\u80fdCDN\u7684\u6838\u5fc3\u601d\u60f3\u662f\u5c06\u7f13\u5b58\u3001\u8def\u7531\u4f18\u5316\u3001\u5b89\u5168\u9632\u62a4\u548c\u90e8\u5206\u5e94\u7528\u903b\u8f91\u4e0b\u6c89\u5230\u79bb\u7528\u6237\u66f4\u8fd1\u7684\u7f51\u7edc\u8282\u70b9\uff08\u8fb9\u7f18\u8282\u70b9\/POP\uff09\u3002\u8fd9\u79cd\u67b6\u6784\u901a\u5e38\u5177\u5907\u4ee5\u4e0b\u5173\u952e\u8981\u7d20\uff1a<\/p>\n<ul>\n<li><strong>\u5206\u5e03\u5f0f\u8fb9\u7f18\u8282\u70b9\uff08POP 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Functions\uff09<\/h3>\n<p>\u8fb9\u7f18\u51fd\u6570\u4f7f\u5f97\u5f00\u53d1\u8005\u80fd\u591f\u5728\u8bf7\u6c42\u8def\u5f84\u7684\u6700\u524d\u7aef\u6267\u884c\u903b\u8f91\uff0c\u5e38\u89c1\u5e94\u7528\u5305\u62ecA\/B\u6d4b\u8bd5\u3001\u4e2a\u6027\u5316\u63a8\u8350\u3001\u91cd\u5199\/\u91cd\u5b9a\u5411\u3001\u8ba4\u8bc1\u4e0e\u7b7e\u540d\u6821\u9a8c\u3001\u56fe\u50cf\u5904\u7406\u548c\u8fb9\u7f18\u6e32\u67d3\u3002\u5173\u952e\u70b9\uff1a<\/p>\n<ul>\n<li>\u51fd\u6570\u51b7\u542f\u52a8\u5f00\u9500\u5c0f\u3001\u6267\u884c\u65f6\u95f4\u53d7\u9650\uff08\u901a\u5e38ms~\u6570\u767ems\uff09\uff0c\u9002\u5408\u8f7b\u91cf\u5316\u5904\u7406\u3002<\/li>\n<li>\u652f\u6301JavaScript\u3001WASM\u7b49\u8fd0\u884c\u65f6\uff0c\u90e8\u5206\u5e73\u53f0\u5141\u8bb8\u6301\u4e45\u5316\u5c0f\u89c4\u6a21\u72b6\u6001\u6216KV\u5b58\u50a8\u4ee5\u7f13\u5b58\u4f1a\u8bdd\u6570\u636e\u3002<\/li>\n<li>\u8fb9\u7f18\u4e0e\u4e2d\u5fc3\u7684\u534f\u540c\uff1a\u590d\u6742\u8fd0\u7b97\u6216\u957f\u65f6\u4efb\u52a1\u4ecd\u5728\u4e2d\u5fc3\u5904\u7406\uff0c\u8fb9\u7f18\u8d1f\u8d23\u5feb\u901f\u51b3\u7b56\u4e0e\u9884\u5904\u7406\u3002<\/li>\n<\/ul>\n<h2>\u8fb9\u7f18\u8d4b\u80fdCDN\u7684\u5178\u578b\u5e94\u7528\u573a\u666f<\/h2>\n<p>\u8fb9\u7f18CDN\u5e76\u975e\u53ea\u4e3a\u9759\u6001\u52a0\u901f\uff0c\u5b9e\u9645\u5e94\u7528\u5e7f\u6cdb\u4e14\u6280\u672f\u6311\u6218\u5404\u5f02\uff1a<\/p>\n<ul>\n<li><strong>\u5168\u7403\u5316\u7f51\u7ad9\u4e0e\u7535\u5546\u5e73\u53f0<\/strong>\uff1a\u901a\u8fc7\u8fb9\u7f18\u7f13\u5b58\u9759\u6001\u8d44\u6e90\u3001CDN\u52a0\u901f\u5546\u54c1\u56fe\u7247\u4e0eJS\uff0c\u7ed3\u5408\u8fb9\u7f18A\/B\u6d4b\u8bd5\u51cf\u5c11\u56de\u6e90\u548c\u7528\u6237\u611f\u77e5\u5ef6\u8fdf\u3002\u5bf9\u7ecf\u8425\u4e9a\u6d32\u5e02\u573a\u7684\u4f01\u4e1a\uff0c\u9999\u6e2f\u670d\u52a1\u5668\u6216\u65b0\u52a0\u5761\u670d\u52a1\u5668\u914d\u5408\u8fb9\u7f18\u8282\u70b9\u80fd\u663e\u8457\u63d0\u5347\u9999\u6e2f\u3001\u53f0\u6e7e\u3001\u65e5\u672c\u3001\u97e9\u56fd\u7528\u6237\u4f53\u9a8c\u3002<\/li>\n<li><strong>\u89c6\u9891\u70b9\u64ad\u4e0e\u76f4\u64ad<\/strong>\uff1a\u8fb9\u7f18\u652f\u6301\u5207\u7247\u5206\u53d1\u3001HLS\/DASH\u52a0\u901f\u4e0e\u4f4e\u5ef6\u8fdf\u76f4\u64ad\uff0c\u4f7f\u7528\u8fb9\u7f18\u8f6c\u5c01\u88c5\u548c\u5206\u6bb5\u7f13\u5b58\u964d\u4f4e\u56de\u6e90\u6d41\u91cf\u3002\u5bf9\u8de8\u5883\u76f4\u64ad\uff0c\u5408\u7406\u5728\u7f8e\u56fd\u670d\u52a1\u5668\u4e0e\u4e9a\u6d32\u8fb9\u7f18\u8282\u70b9\u5e03\u5c40\u80fd\u4f18\u5316\u5168\u7403\u8986\u76d6\u3002<\/li>\n<li><strong>API\u52a0\u901f\u4e0e\u5fae\u670d\u52a1\u7f51\u5173<\/strong>\uff1a\u628a\u8ba4\u8bc1\u3001\u901f\u7387\u9650\u5236\u3001\u7f13\u5b58\u4e0e\u805a\u5408\u79fb\u5230\u8fb9\u7f18\uff0c\u51cf\u8f7b\u540e\u7aef\u5fae\u670d\u52a1\u538b\u529b\uff0c\u63d0\u9ad8\u5e76\u53d1\u541e\u5410\u3002<\/li>\n<li><strong>\u7269\u8054\u7f51\u4e0e\u8fb9\u7f18\u667a\u80fd<\/strong>\uff1a\u8fb9\u7f18\u8282\u70b9\u5728\u672c\u5730\u805a\u5408\u4e0a\u62a5\u6570\u636e\u3001\u505a\u8f7b\u91cf\u89c4\u5219\u5f15\u64ce\u4e0e\u8fc7\u6ee4\uff0c\u51cf\u5c11\u5bf9\u4e2d\u5fc3\u6570\u636e\u94fe\u8def\u7684\u5e26\u5bbd\u5360\u7528\u3002<\/li>\n<li><strong>\u5b89\u5168\u9632\u62a4\u4e0e\u5408\u89c4\u52a0\u901f<\/strong>\uff1a\u5728\u8fb9\u7f18\u8fdb\u884cWAF\u89c4\u5219\u5339\u914d\u3001TLS\u7ec8\u6b62\u4e0eBot\u7ba1\u7406\uff0c\u907f\u514d\u6076\u610f\u6d41\u91cf\u89e6\u8fbe\u6e90\u7ad9\u3002<\/li>\n<\/ul>\n<h2>\u4e0e\u4f20\u7edfCDN\/\u4e2d\u5fc3\u5316\u65b9\u6848\u7684\u4f18\u52bf\u5bf9\u6bd4<\/h2>\n<p>\u5c06\u8fb9\u7f18\u8ba1\u7b97\u80fd\u529b\u878d\u5165CDN\u4e4b\u540e\uff0c\u6574\u4f53\u80fd\u529b\u76f8\u6bd4\u4f20\u7edfCDN\u63d0\u5347\u660e\u663e\uff0c\u4f46\u4e5f\u5e26\u6765\u65b0\u7684\u590d\u6742\u5ea6\uff1a<\/p>\n<ul>\n<li><strong>\u6027\u80fd\uff1a<\/strong>\u8fb9\u7f18\u6267\u884c\u51cf\u5c11RTT\u4e0e\u56de\u6e90\u6b21\u6570\uff0cHTTP\/3\u5728\u9ad8\u4e22\u5305\u94fe\u8def\u4e0a\u8868\u73b0\u4f18\u4e8eTCP+TLS\uff0c\u5c24\u5176\u5bf9\u79fb\u52a8\u4e0e\u8de8\u5883\u7528\u6237\u6709\u660e\u663e\u63d0\u5347\u3002<\/li>\n<li><strong>\u7075\u6d3b\u6027\uff1a<\/strong>\u8fb9\u7f18\u51fd\u6570\u4f7f\u5f97\u7ebf\u4e0a\u53d8\u66f4\u66f4\u5feb\uff0c\u53ef\u4ee5\u5728\u4e0d\u89e6\u53ca\u6e90\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\u5b9e\u73b0\u8def\u5f84\u7ea7\u903b\u8f91\u3002<\/li>\n<li><strong>\u6210\u672c\u63a7\u5236\uff1a<\/strong>\u901a\u8fc7\u8fb9\u7f18\u7f13\u5b58\u4e0e\u6d41\u91cf\u805a\u5408\u663e\u8457\u964d\u4f4e\u56de\u6e90\u5e26\u5bbd\u8d39\u7528\uff0c\u4f46\u8fb9\u7f18\u8ba1\u7b97\u8c03\u7528\u4e0e\u5b58\u50a8\u53ef\u80fd\u589e\u52a0\u8fb9\u7f18\u5e73\u53f0\u4f7f\u7528\u6210\u672c\uff0c\u9700\u8981\u6309\u6d41\u91cf\u4e0e\u8c03\u7528\u91cf\u8bc4\u4f30TCO\u3002<\/li>\n<li><strong>\u590d\u6742\u5ea6\u4e0e\u8fd0\u7ef4\uff1a<\/strong>\u5206\u5e03\u5f0f\u914d\u7f6e\u3001\u76d1\u63a7\u3001\u65e5\u5fd7\u91c7\u96c6\u4e0e\u4e00\u81f4\u6027\u7ba1\u7406\u589e\u52a0\u8fd0\u7ef4\u6311\u6218\uff0c\u9700\u8981\u826f\u597d\u7684\u89c2\u5bdf\u6027\uff08Tracing\u3001Metrics\u3001Real User 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