{"id":209843,"date":"2025-10-24T00:08:55","date_gmt":"2025-10-23T16:08:55","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209843\/"},"modified":"2025-10-24T00:08:56","modified_gmt":"2025-10-23T16:08:56","slug":"cdn-156","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209843\/","title":{"rendered":"CDN\u5e26\u5bbd\u9650\u5236\u4e0e\u6027\u80fd\u6df1\u5ea6\u89e3\u6790\uff1a\u74f6\u9888\u6210\u56e0\u4e0e\u5b9e\u6218\u4f18\u5316\u8def\u5f84"},"content":{"rendered":"<p>\u5728\u5168\u7403\u5316\u7f51\u7edc\u548c\u9ad8\u5e76\u53d1\u8bbf\u95ee\u573a\u666f\u4e0b\uff0cCDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u5df2\u6210\u4e3a\u63d0\u9ad8\u7f51\u7ad9\u6027\u80fd\u548c\u7528\u6237\u4f53\u9a8c\u7684\u6838\u5fc3\u57fa\u7840\u8bbe\u65bd\u3002\u7136\u800c\uff0c\u5b9e\u9645\u90e8\u7f72\u4e2d\u7ecf\u5e38\u9047\u5230\u201c\u5e26\u5bbd\u9650\u5236\u5bfc\u81f4\u6027\u80fd\u74f6\u9888\u201d\u7684\u95ee\u9898\u3002\u672c\u6587\u5c06\u4ece\u539f\u7406\u5165\u624b\uff0c\u5256\u6790\u5e26\u5bbd\u74f6\u9888\u6210\u56e0\uff0c\u7ed3\u5408\u5e94\u7528\u573a\u666f\u7ed9\u51fa\u8be6\u7ec6\u7684\u5b9e\u6218\u4f18\u5316\u8def\u5f84\u4e0e\u9009\u8d2d\u5efa\u8bae\uff0c\u5e2e\u52a9\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u4e0e\u5f00\u53d1\u8005\u505a\u51fa\u66f4\u4f18\u7684\u67b6\u6784\u51b3\u5b9a\u3002<\/p>\n<h2>CDN\u5e26\u5bbd\u4e0e\u6027\u80fd\u7684\u57fa\u7840\u539f\u7406<\/h2>\n<p>\u5728\u8ba8\u8bba\u4f18\u5316\u4e4b\u524d\uff0c\u9700\u660e\u786e\u51e0\u4e2a\u6838\u5fc3\u6982\u5ff5\uff1a<strong>\u5e26\u5bbd<\/strong>\u3001\u541e\u5410\u91cf\u3001\u5ef6\u8fdf\u4e0e\u4e22\u5305\u7387\u3002\u5e26\u5bbd\u901a\u5e38\u6307\u7f51\u7edc\u94fe\u8def\u5728\u5355\u4f4d\u65f6\u95f4\u5185\u53ef\u4f20\u8f93\u7684\u6700\u5927\u6bd4\u7279\u6570\uff1b\u541e\u5410\u91cf\u662f\u5b9e\u9645\u4f20\u8f93\u901f\u7387\uff1b\u5ef6\u8fdf\u662f\u6570\u636e\u5728\u7f51\u7edc\u4e2d\u7684\u5f80\u8fd4\u65f6\u95f4\u3002CDN\u7684\u6027\u80fd\u53d7\u5236\u4e8e\u8fd9\u4e9b\u56e0\u7d20\u7684\u7efc\u5408\u8868\u73b0\uff0c\u800c\u5e26\u5bbd\u9650\u5236\u5f80\u5f80\u662f\u53ef\u6d4b\u4e14\u76f4\u63a5\u5f71\u54cd\u5e76\u53d1\u54cd\u5e94\u80fd\u529b\u7684\u74f6\u9888\u3002<\/p>\n<h3>CDN\u8282\u70b9\u5e26\u5bbd\u4e0e\u56de\u6e90\u5e26\u5bbd\u7684\u533a\u522b<\/h3>\n<ul>\n<li>\u8282\u70b9\u5e26\u5bbd\uff1aCDN\u8fb9\u7f18\u8282\u70b9\u5411\u7ec8\u7aef\u7528\u6237\u63d0\u4f9b\u5185\u5bb9\u65f6\u7684\u51fa\u53e3\u5e26\u5bbd\u3002<\/li>\n<li>\u56de\u6e90\u5e26\u5bbd\uff1a\u5f53\u8fb9\u7f18\u8282\u70b9\u672a\u547d\u4e2d\u7f13\u5b58\uff0c\u9700\u8981\u5411\u6e90\u7ad9\uff08Origin\uff09\u62c9\u53d6\u5185\u5bb9\u65f6\uff0c\u6d89\u53ca\u7684\u4e0a\u884c\/\u4e0b\u884c\u5e26\u5bbd\u3002<\/li>\n<\/ul>\n<p>\u5982\u679c\u8fb9\u7f18\u8282\u70b9\u7684\u51fa\u53e3\u5e26\u5bbd\u53d7\u9650\uff0c\u4f1a\u5bfc\u81f4\u5373\u4f7f\u7f13\u5b58\u547d\u4e2d\u7387\u9ad8\uff0c\u4e5f\u65e0\u6cd5\u5145\u5206\u53d1\u6325\u6027\u80fd\uff1b\u5982\u679c\u56de\u6e90\u5e26\u5bbd\u53d7\u9650\uff0c\u5219\u5728\u4f4e\u7f13\u5b58\u547d\u4e2d\u6216\u52a8\u6001\u5185\u5bb9\u573a\u666f\u4e0b\u4f1a\u4ea7\u751f\u660e\u663e\u74f6\u9888\u3002<\/p>\n<h2>\u5e26\u5bbd\u74f6\u9888\u7684\u5e38\u89c1\u6210\u56e0<\/h2>\n<p>\u5e26\u5bbd\u74f6\u9888\u5e76\u975e\u5355\u4e00\u56e0\u7d20\u5bfc\u81f4\uff0c\u901a\u5e38\u662f\u591a\u56e0\u7d20\u53e0\u52a0\u7684\u7ed3\u679c\uff1a<\/p>\n<ul>\n<li><strong>\u6d41\u91cf\u5cf0\u503c\u4e0e\u8ba1\u8d39\u7b56\u7565\u4e0d\u5339\u914d<\/strong>\uff1a\u6309\u5e26\u5bbd\u8ba1\u8d39\u6216\u6309\u6d41\u91cf\u8ba1\u8d39\u4f46\u9650\u901f\uff0c\u4f1a\u5728\u6d41\u91cf\u7a81\u53d1\u65f6\u89e6\u53d1\u9650\u901f\u6216\u989d\u5916\u5ef6\u8fdf\u3002<\/li>\n<li><strong>\u8282\u70b9\u90e8\u7f72\u5206\u5e03\u4e0d\u5747<\/strong>\uff1a\u8fb9\u7f18\u8282\u70b9\u79bb\u7528\u6237\u8f83\u8fdc\u6216\u5206\u5e03\u4e0d\u5408\u7406\uff0c\u5bfc\u81f4\u5355\u4e2a\u8282\u70b9\u627f\u8f7d\u8fc7\u591a\u5e76\u53d1\u3002<\/li>\n<li><strong>\u56de\u6e90\u94fe\u8def\u74f6\u9888<\/strong>\uff1a\u6e90\u7ad9\u5e26\u5bbd\u3001\u4e0a\u884c\u94fe\u8def\u6216\u6570\u636e\u4e2d\u5fc3\u51fa\u53e3\u9650\u901f\uff0c\u5f71\u54cd\u56de\u6e90\u6548\u7387\u3002<\/li>\n<li><strong>TCP\u8fde\u63a5\u4e0e\u5e76\u53d1\u6570\u9650\u5236<\/strong>\uff1a\u64cd\u4f5c\u7cfb\u7edf\u3001web\u670d\u52a1\u5668\u6216CDN\u8282\u70b9\u914d\u7f6e\u9650\u5236\u5e76\u53d1\u8fde\u63a5\u6570\uff0c\u5f71\u54cd\u5b9e\u9645\u541e\u5410\u3002<\/li>\n<li><strong>\u534f\u8bae\u4e0e\u4f20\u8f93\u6548\u7387<\/strong>\uff1aHTTP\/1.1\u7684\u8bf7\u6c42\u5934\u5197\u4f59\u3001TLS\u63e1\u624b\u6b21\u6570\u3001\u672a\u91c7\u7528QUIC\u6216HTTP\/2\u90fd\u53ef\u80fd\u964d\u4f4e\u6548\u7387\u3002<\/li>\n<li><strong>\u7f13\u5b58\u7b56\u7565\u4e0d\u5f53<\/strong>\uff1a\u77ed\u7f13\u5b58\u3001\u52a8\u6001\u8d44\u6e90\u9891\u7e41\u56de\u6e90\uff0c\u4f1a\u653e\u5927\u56de\u6e90\u5e26\u5bbd\u538b\u529b\u3002<\/li>\n<\/ul>\n<h2>\u4e0d\u540c\u5e94\u7528\u573a\u666f\u7684\u5e26\u5bbd\u75db\u70b9\u4e0e\u4f18\u5148\u7ea7<\/h2>\n<p>\u9009\u62e9\u4f18\u5316\u8def\u5f84\u5e94\u57fa\u4e8e\u5e94\u7528\u573a\u666f\u4f18\u5148\u7ea7\uff1a<\/p>\n<h3>\u9759\u6001\u5185\u5bb9\u5206\u53d1\uff08\u56fe\u7247\u3001\u89c6\u9891\u3001\u9759\u6001\u6587\u4ef6\uff09<\/h3>\n<ul>\n<li>\u75db\u70b9\uff1a\u5927\u6587\u4ef6\u6d41\u91cf\u5cf0\u503c\u5bfc\u81f4\u8282\u70b9\u5e26\u5bbd\u8017\u5c3d\u6216\u56de\u6e90\u538b\u529b\u5927\u3002<\/li>\n<li>\u4f18\u5316\u91cd\u70b9\uff1a\u63d0\u9ad8\u7f13\u5b58\u547d\u4e2d\u7387\u3001\u4f7f\u7528\u5206\u7247\/\u591a\u57df\u540d\u5e76\u884c\u4e0b\u8f7d\u3001\u5f00\u542f\u8303\u56f4\u8bf7\u6c42\uff08Range\uff09\u548c\u65ad\u70b9\u7eed\u4f20\u3002<\/li>\n<\/ul>\n<h3>\u52a8\u6001\u9875\u9762\u4e0eAPI\u8bf7\u6c42<\/h3>\n<ul>\n<li>\u75db\u70b9\uff1a\u4e0d\u53ef\u7f13\u5b58\u6216\u77ed\u65f6\u95f4\u7f13\u5b58\u5bfc\u81f4\u9891\u7e41\u56de\u6e90\uff0c\u56de\u6e90\u5e26\u5bbd\u548c\u6e90\u7ad9\u5904\u7406\u80fd\u529b\u6210\u4e3a\u74f6\u9888\u3002<\/li>\n<li>\u4f18\u5316\u91cd\u70b9\uff1a\u91c7\u7528\u8fb9\u7f18\u8ba1\u7b97\/Edge Computing\u7f13\u5b58\u52a8\u6001\u7247\u6bb5\u3001\u538b\u7f29\u54cd\u5e94\u3001\u5408\u7406\u8bbe\u7f6eCache-Control\u4e0eETag\u3002<\/li>\n<\/ul>\n<h3>\u76f4\u64ad\u4e0e\u5927\u6d41\u91cf\u5e76\u53d1\uff08\u6d41\u5a92\u4f53\uff09<\/h3>\n<ul>\n<li>\u75db\u70b9\uff1a\u6301\u7eed\u9ad8\u5e26\u5bbd\u5360\u7528\uff0c\u8282\u70b9\u4e0e\u56de\u6e90\u94fe\u8def\u9700\u8981\u7a33\u5b9a\u7684\u957f\u65f6\u5bbd\u5e26\u4fdd\u969c\u3002<\/li>\n<li>\u4f18\u5316\u91cd\u70b9\uff1a\u9009\u62e9\u5e26\u5bbd\u5145\u88d5\u7684\u8282\u70b9\u3001\u4f7f\u7528\u591aCDN\u6216\u591a\u533a\u57df\u5197\u4f59\u3001\u91c7\u7528\u5206\u53d1\u5c42\u6b21\u5316\u67b6\u6784\uff08\u591a\u7ea7\u7f13\u5b58\uff09\u3002<\/li>\n<\/ul>\n<h2>\u5b9e\u6218\u4f18\u5316\u8def\u5f84\uff08\u9010\u9879\u53ef\u64cd\u4f5c\uff09<\/h2>\n<h3>1. \u6d41\u91cf\u5206\u6790\u4e0e\u5bb9\u91cf\u89c4\u5212<\/h3>\n<p>\u901a\u8fc7\u65e5\u5fd7\u4e0e\u76d1\u63a7\u7edf\u8ba1\u5cf0\u503c\u5e76\u53d1\u8fde\u63a5\u300195\/99\u767e\u5206\u4f4d\u5e26\u5bbd\u4f7f\u7528\u91cf\u3002\u57fa\u4e8e\u4e1a\u52a1\u589e\u957f\u9884\u4f30\u672a\u67653-6\u4e2a\u6708\u9700\u6c42\uff0c\u8bbe\u7f6e\u5197\u4f59\u7cfb\u6570\uff08\u901a\u5e382\u500d\u4ee5\u4e0a\uff09\u3002<\/p>\n<h3>2. \u4f18\u5316\u7f13\u5b58\u7b56\u7565<\/h3>\n<ul>\n<li>\u8bbe\u7f6e\u5408\u7406\u7684Cache-Control\u3001Expires\u4e0eETag\uff0c\u5c3d\u91cf\u5c06\u9759\u6001\u8d44\u6e90\u957f\u671f\u7f13\u5b58\u3002<\/li>\n<li>\u5bf9\u4e8e\u53ef\u5206\u7247\u7684\u8d44\u6e90\uff08\u5982\u89c6\u9891\uff09\uff0c\u91c7\u7528\u5207\u7247+CDN\u5206\u53d1\uff0c\u51cf\u5c11\u5355\u6587\u4ef6\u8bfb\u5199\u538b\u529b\u3002<\/li>\n<li>\u4f7f\u7528\u5185\u5bb9\u5206\u7247\u54c8\u5e0c\u548cURL\u53bb\u91cd\uff0c\u907f\u514d\u540c\u4e00\u8d44\u6e90\u88ab\u91cd\u590d\u7f13\u5b58\u5360\u7528\u5e26\u5bbd\u3002<\/li>\n<\/ul>\n<h3>3. \u534f\u8bae\u4e0e\u4f20\u8f93\u5c42\u4f18\u5316<\/h3>\n<ul>\n<li>\u542f\u7528HTTP\/2\u6216QUIC\uff08HTTP\/3\uff09\uff0c\u53ef\u663e\u8457\u51cf\u5c11\u63e1\u624b\u5ef6\u8fdf\u5e76\u63d0\u9ad8\u591a\u8def\u590d\u7528\u6548\u7387\u3002<\/li>\n<li>\u542f\u7528TLS\u4f1a\u8bdd\u590d\u7528\u3001OCSP Stapling\u4ee5\u964d\u4f4e\u63e1\u624b\u5f00\u9500\u3002<\/li>\n<li>\u542f\u7528Gzip\u6216Brotli\u538b\u7f29\uff0c\u51cf\u5c11\u6587\u672c\u7c7b\u8d44\u6e90\u5e26\u5bbd\u5360\u7528\u3002<\/li>\n<\/ul>\n<h3>4. \u5206\u53d1\u67b6\u6784\u4e0e\u591aCDN\u7b56\u7565<\/h3>\n<p>\u5bf9\u8de8\u56fd\u4e1a\u52a1\uff08\u5982\u90e8\u7f72\u5728\u9999\u6e2f\u3001\u7f8e\u56fd\u3001\u65e5\u672c\u3001\u97e9\u56fd\u3001\u65b0\u52a0\u5761\u7b49\u533a\u57df\u7684\u7528\u6237\uff09\u91c7\u7528\u591aCDN\u6216\u667a\u80fd\u8c03\u5ea6\uff0c\u907f\u514d\u5355\u4e00\u8282\u70b9\u6216\u94fe\u8def\u6210\u4e3a\u74f6\u9888\u3002\u591aCDN\u80fd\u5728\u4e00\u6761\u94fe\u8def\u5f02\u5e38\u65f6\u5207\u6362\u6d41\u91cf\uff0c\u63d0\u5347\u53ef\u7528\u6027\u4e0e\u6027\u80fd\u3002<\/p>\n<h3>5. 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