{"id":209509,"date":"2025-10-23T16:07:32","date_gmt":"2025-10-23T08:07:32","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209509\/"},"modified":"2025-10-23T16:07:32","modified_gmt":"2025-10-23T08:07:32","slug":"cdn-15","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209509\/","title":{"rendered":"CDN\u5982\u4f55\u5b9e\u73b0\u9875\u9762\u52a0\u901f\uff1a\u539f\u7406\u4e0e\u5b9e\u6218\u4f18\u5316"},"content":{"rendered":"<p>\u968f\u7740\u7f51\u7ad9\u548c\u5e94\u7528\u5bf9\u6027\u80fd\u8981\u6c42\u7684\u63d0\u9ad8\uff0cCDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u5df2\u6210\u4e3a\u63d0\u5347\u9875\u9762\u52a0\u8f7d\u901f\u5ea6\u3001\u964d\u4f4e\u5ef6\u8fdf\u4e0e\u63d0\u9ad8\u53ef\u7528\u6027\u7684\u6838\u5fc3\u6280\u672f\u4e4b\u4e00\u3002\u672c\u6587\u5c06\u4ece\u539f\u7406\u5c42\u9762\u89e3\u6790 CDN 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Brotli\uff1b\u56fe\u7247\u91c7\u7528 WebP\/AVIF \u7b49\u73b0\u4ee3\u7f16\u7801\uff0c\u5e76\u7ed3\u5408\u54cd\u5e94\u7684 Accept \u683c\u5f0f\u534f\u5546\u3002<\/li>\n<li><strong>\u5408\u5e76\u4e0e\u6309\u9700\u52a0\u8f7d\uff1a<\/strong>\u5408\u5e76\u5c0f\u6587\u4ef6\u51cf\u5c11\u8bf7\u6c42\u6570\u91cf\uff0c\u4f46\u9700\u6743\u8861 cache \u6548\u76ca\uff1b\u4f7f\u7528\u61d2\u52a0\u8f7d\uff08lazyload\uff09\u548c\u52a8\u6001\u5bfc\u5165\uff08code splitting\uff09\u6309\u9700\u52a0\u8f7d\u975e\u9996\u5c4f\u8d44\u6e90\u3002<\/li>\n<li><strong>\u5229\u7528 HTTP\/2 \u4e0e HTTP\/3\uff1a<\/strong>\u542f\u7528\u591a\u8def\u590d\u7528\u51cf\u5c11\u8fde\u63a5\u6570\uff0c\u4f7f\u7528 QUIC\uff08HTTP\/3\uff09\u8fdb\u4e00\u6b65\u964d\u4f4e\u4e22\u5305\u4e0b\u7684\u5ef6\u8fdf\uff0c\u7279\u522b\u5728\u8de8\u56fd\u94fe\u8def\uff08\u5982\u4ece\u9999\u6e2f\u8bbf\u95ee\u65e5\u672c\u6216\u7f8e\u56fd\uff09\u4e0a\u6548\u679c\u660e\u663e\u3002<\/li>\n<li><strong>\u8fb9\u7f18\u91cd\u5199\u4e0e\u538b\u7f29\uff1a<\/strong>\u5728\u8fb9\u7f18\u8282\u70b9\u8fdb\u884c HTML\/JS\/CSS \u7684\u6587\u672c\u66ff\u6362\u3001\u56fe\u7247\u538b\u7f29\u4e0e\u54cd\u5e94\u6700\u5c0f\u5316\uff0c\u964d\u4f4e\u56de\u6e90\u4e0e\u5ba2\u6237\u7aef\u8d1f\u62c5\u3002<\/li>\n<li><strong>\u5408\u7406\u7684\u9884\u53d6\u4e0e\u9884\u8fde\u63a5\uff1a<\/strong>\u4f7f\u7528 rel=&#8221;preload&#8221;\u3001rel=&#8221;preconnect&#8221;\u3001DNS prefetch \u6765\u63d0\u524d\u89e3\u6790\u57df\u540d\u6216\u9884\u5efa\u7acb\u8fde\u63a5\uff0c\u51cf\u5c11\u9996\u6b21\u6e32\u67d3\u7b49\u5f85\u65f6\u95f4\u3002<\/li>\n<\/ul>\n<h3>\u6d4b\u8bd5\u4e0e\u76d1\u63a7\u6307\u6807<\/h3>\n<p>\u8bc4\u4f30 CDN \u52a0\u901f\u6548\u679c\u8981\u5173\u6ce8\u4ee5\u4e0b\u6307\u6807\uff1a<\/p>\n<ul>\n<li>DNS \u89e3\u6790\u65f6\u5ef6\u4e0e\u89e3\u6790\u6210\u529f\u7387<\/li>\n<li>\u9996\u5b57\u8282\u65f6\u95f4\uff08TTFB\uff09\u4e0e\u603b\u52a0\u8f7d\u65f6\u95f4<\/li>\n<li>\u7f13\u5b58\u547d\u4e2d\u7387\uff08\u8fb9\u7f18\u547d\u4e2d\u7387 vs \u56de\u6e90\u6bd4\u4f8b\uff09<\/li>\n<li>\u5e26\u5bbd\u8282\u7701\u4e0e\u56de\u6e90\u6d41\u91cf<\/li>\n<li>\u9519\u8bef\u7387\u3001\u56de\u6e90\u5931\u8d25\u4e0e 5xx \u5206\u5e03<\/li>\n<\/ul>\n<p>\u7ed3\u5408\u5408\u9002\u7684\u76d1\u63a7\uff08\u5982\u5b9e\u65f6\u65e5\u5fd7\u3001\u8fb9\u7f18\u7edf\u8ba1\u3001RUM\uff09\u53ef\u4ee5\u8bc6\u522b\u95ee\u9898\u5e76\u6301\u7eed\u4f18\u5316\u3002<\/p>\n<h2>\u4e0d\u540c\u573a\u666f\u4e0b\u7684\u5e94\u7528\u4e0e\u4f18\u52bf\u5bf9\u6bd4<\/h2>\n<p>\u6839\u636e\u4e0d\u540c\u5730\u57df\u548c\u4e1a\u52a1\u9700\u6c42\uff0cCDN \u4e0e\u670d\u52a1\u5668\u7c7b\u578b\uff08\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u3001\u65e5\u672c\u670d\u52a1\u5668\u7b49\uff09\u7ec4\u5408\u4f1a\u6709\u5dee\u5f02\u5316\u8868\u73b0\u3002<\/p>\n<h3>\u9762\u5411\u672c\u5730\u7528\u6237\uff08\u4f8b\u5982\u9999\u6e2f\/\u4e1c\u4e9a\uff09<\/h3>\n<ul>\n<li>\u4f7f\u7528\u8986\u76d6\u9999\u6e2f\/\u9999\u6e2f\u9644\u8fd1 PoP \u7684 CDN \u80fd\u663e\u8457\u7f29\u77ed\u5ef6\u8fdf\uff0c\u5bf9\u672c\u5730\u6d41\u91cf\u53cb\u597d\u3002<\/li>\n<li>\u82e5 origin \u90e8\u7f72\u5728\u9999\u6e2f\u670d\u52a1\u5668 \u6216 \u9999\u6e2fVPS\uff0c\u53ef\u964d\u4f4e\u56de\u6e90\u5ef6\u8fdf\u548c\u6210\u672c\u3002<\/li>\n<\/ul>\n<h3>\u9762\u5411\u5168\u7403\u7528\u6237\uff08\u5305\u62ec\u7f8e\u6d32\u4e0e\u6b27\u6d32\uff09<\/h3>\n<ul>\n<li>\u9700\u8981\u5728\u76ee\u6807\u5730\u533a\u6709 PoP \u7684 CDN\uff0cAnycast DNS 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