{"id":209567,"date":"2025-10-23T17:41:21","date_gmt":"2025-10-23T09:41:21","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209567\/"},"modified":"2025-10-23T17:41:22","modified_gmt":"2025-10-23T09:41:22","slug":"cdn-41","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209567\/","title":{"rendered":"CDN\u70ed\u70b9\u8d44\u6e90\u5206\u53d1\u4f18\u5316\uff1a\u63d0\u5347\u547d\u4e2d\u7387\u4e0e\u964d\u4f4e\u5ef6\u8fdf\u7684\u5b9e\u6218\u7b56\u7565"},"content":{"rendered":"<p>\u5728\u5168\u7403\u5316\u8bbf\u95ee\u548c\u79fb\u52a8\u5316\u6d41\u91cf\u5feb\u901f\u589e\u957f\u7684\u80cc\u666f\u4e0b\uff0cCDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u6210\u4e3a\u63d0\u5347\u7f51\u7ad9\u6027\u80fd\u548c\u7528\u6237\u4f53\u9a8c\u7684\u5173\u952e\u7ec4\u4ef6\u3002\u5bf9\u4e8e\u9762\u5411\u9999\u6e2f\u3001\u7f8e\u56fd\u3001\u65e5\u672c\u3001\u97e9\u56fd\u3001\u65b0\u52a0\u5761\u7b49\u5730\u533a\u7684\u7ad9\u70b9\uff0c\u5c24\u5176\u662f\u4f7f\u7528\u9999\u6e2f\u670d\u52a1\u5668\u6216\u7f8e\u56fd\u670d\u52a1\u5668\u4f5c\u4e3a\u6e90\u7ad9\u7684\u4f01\u4e1a\uff0c<strong>\u4f18\u5316\u70ed\u70b9\u8d44\u6e90\u5206\u53d1\u4ee5\u63d0\u5347\u7f13\u5b58\u547d\u4e2d\u7387\u4e0e\u964d\u4f4e\u5ef6\u8fdf<\/strong>\uff0c\u80fd\u663e\u8457\u964d\u4f4e\u5e26\u5bbd\u6210\u672c\u5e76\u63d0\u5347\u7528\u6237\u611f\u77e5\u901f\u5ea6\u3002\u672c\u6587\u4ece\u539f\u7406\u3001\u5b9e\u6218\u7b56\u7565\u4e0e\u9009\u8d2d\u5efa\u8bae\u51fa\u53d1\uff0c\u9762\u5411\u7ad9\u957f\u3001\u4f01\u4e1a\u8fd0\u7ef4\u548c\u5f00\u53d1\u8005\uff0c\u63d0\u4f9b\u53ef\u843d\u5730\u7684\u4f18\u5316\u8def\u5f84\u3002<\/p>\n<h2>CDN\u70ed\u70b9\u8d44\u6e90\u5206\u53d1\u7684\u57fa\u672c\u539f\u7406<\/h2>\n<p>\u6240\u8c13\u201c\u70ed\u70b9\u8d44\u6e90\u201d\uff0c\u901a\u5e38\u6307\u8bbf\u95ee\u9891\u6b21\u8fdc\u9ad8\u4e8e\u5e73\u5747\u6c34\u5e73\u7684\u9759\u6001\u6216\u534a\u9759\u6001\u5bf9\u8c61\uff0c\u5982\u9996\u9875\u7684\u9759\u6001 JS\/CSS\u3001\u70ed\u95e8\u56fe\u7247\u3001\u89c6\u9891\u7247\u6bb5\u6216 API \u8fd4\u56de\u7684\u7f13\u5b58\u7ed3\u679c\u3002CDN \u7684\u76ee\u6807\u662f\u5c3d\u91cf\u628a\u8fd9\u4e9b\u70ed\u70b9\u5bf9\u8c61\u653e\u5728\u9760\u8fd1\u7528\u6237\u7684\u8fb9\u7f18\u8282\u70b9\uff0c\u4ee5\u5b9e\u73b0\u6700\u77ed\u7684\u7f51\u7edc\u8def\u5f84\u548c\u6700\u5c0f\u7684\u54cd\u5e94\u65f6\u95f4\u3002<\/p>\n<p>\u5173\u952e\u539f\u7406\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u7f13\u5b58\u5206\u5c42\uff08Tiered Caching\uff09<\/strong>\uff1a\u7531\u8fb9\u7f18\u8282\u70b9\u3001\u533a\u57df\u8282\u70b9\u5230\u6e90\u7ad9\u6784\u6210\u5206\u5c42\u7f13\u5b58\uff0c\u51cf\u5c11\u56de\u6e90\u9891\u7387\u3002<\/li>\n<li><strong>\u7f13\u5b58\u952e\uff08Cache Key\uff09\u6784\u5efa<\/strong>\uff1a\u901a\u8fc7\u8def\u5f84\u3001Host\u3001Query\u3001Cookie\u3001Header \u7b49\u5b57\u6bb5\u51b3\u5b9a\u662f\u5426\u547d\u4e2d\u540c\u4e00\u7f13\u5b58\u3002<\/li>\n<li><strong>\u66ff\u6362\u7b56\u7565<\/strong>\uff1aLRU\u3001LFU\u3001TTL \u7b49\u7528\u4e8e\u5728\u8282\u70b9\u5b58\u50a8\u6709\u9650\u7684\u60c5\u51b5\u4e0b\u4f18\u5148\u4fdd\u7559\u70ed\u70b9\u5bf9\u8c61\u3002<\/li>\n<li><strong>\u8def\u7531\u4e0e\u8c03\u5ea6<\/strong>\uff1a\u57fa\u4e8e\u5730\u7406\u3001\u7f51\u7edc\u5ef6\u8fdf\uff08RTT\uff09\u3001\u8282\u70b9\u8d1f\u8f7d\u8fdb\u884c\u7528\u6237\u5230\u8fb9\u7f18\u7684\u667a\u80fd\u8c03\u5ea6\u3002<\/li>\n<\/ul>\n<h2>\u8bc6\u522b\u4e0e\u91cf\u5316\u70ed\u70b9\uff1a\u5ea6\u91cf\u6307\u6807\u4e0e\u65b9\u6cd5<\/h2>\n<p>\u5728\u4f18\u5316\u524d\uff0c\u9700\u5148\u51c6\u786e\u8bc6\u522b\u70ed\u70b9\u5bf9\u8c61\u4e0e\u8bbf\u95ee\u6a21\u5f0f\u3002\u5e38\u7528\u5ea6\u91cf\u6307\u6807\uff1a<\/p>\n<ul>\n<li>\u8bf7\u6c42\u9891\u6b21\uff08RPS\uff09\u4e0e\u5e26\u5bbd\u5360\u6bd4\uff08\u6d41\u91cf\u767e\u5206\u6bd4\uff09\u3002<\/li>\n<li>\u7f13\u5b58\u547d\u4e2d\u7387\uff08Hit Ratio\uff09\u4e0e\u8fb9\u7f18\u547d\u4e2d\u7387\uff08Edge Hit\uff09\u3002<\/li>\n<li>\u56de\u6e90\u7387\uff08Miss Resulting In Origin Fetch\uff09\u4e0e\u56de\u6e90\u5ef6\u8fdf\u3002<\/li>\n<li>\u5bf9\u8c61\u751f\u547d\u5468\u671f\uff08\u4ece\u9996\u6b21\u8bf7\u6c42\u5230\u4e0d\u518d\u88ab\u8bf7\u6c42\u7684\u65f6\u95f4\u5206\u5e03\uff09\u3002<\/li>\n<\/ul>\n<p>\u53ef\u901a\u8fc7 CDN \u63d0\u4f9b\u7684\u7edf\u8ba1\u3001\u65e5\u5fd7\uff08Edge logs\uff09\u3001\u6216\u8005\u7ed3\u5408\u81ea\u5efa\u91c7\u96c6\uff08\u5982\u4f7f\u7528 Prometheus + Grafana\u3001ELK\uff09\u5bf9\u8bf7\u6c42\u8fdb\u884c\u805a\u5408\u5206\u6790\u3002\u5bf9\u63a5\u57df\u540d\u6ce8\u518c\u548c DNS \u7b56\u7565\u65f6\uff0c\u4e5f\u5efa\u8bae\u7ed3\u5408 DNS \u89e3\u6790\u65e5\u5fd7\u5206\u6790\u5730\u57df\u5206\u5e03\uff0c\u5c24\u5176\u662f\u4f7f\u7528\u9999\u6e2fVPS \u6216\u7f8e\u56fdVPS \u7684\u4e1a\u52a1\u573a\u666f\u3002<\/p>\n<h3>\u70ed\u5ea6\u5224\u5b9a\u7b56\u7565<\/h3>\n<ul>\n<li>\u6ed1\u52a8\u7a97\u53e3\u8ba1\u6570\uff1a\u5982\u8fc7\u53bb 5 \u5206\u949f\u30011 \u5c0f\u65f6\u300124 \u5c0f\u65f6\u7684\u8bbf\u95ee\u6b21\u6570\u3002<\/li>\n<li>\u9891\u7e41\u5ea6\u4e0e\u6700\u8fd1\u6027\u52a0\u6743\uff1a\u4f7f\u7528\u6307\u6570\u8870\u51cf\uff08Exponential Decay\uff09\u628a\u8fd1\u671f\u8bbf\u95ee\u6743\u91cd\u63d0\u9ad8\uff0c\u914d\u5408 LFU+LRU \u6df7\u5408\u7b56\u7565\u3002<\/li>\n<li>\u5927\u5c0f\u4e0e\u6536\u76ca\u6bd4\u8ba1\u7b97\uff1a\u8f83\u5927\u4f46\u8bbf\u95ee\u5c11\u7684\u5bf9\u8c61\u5373\u4f7f\u9891\u6b21\u9ad8\uff0c\u4e5f\u53ef\u80fd\u4e0d\u503c\u5f97\u957f\u671f\u7f13\u5b58\uff08\u5e26\u5bbd\/\u5b58\u50a8\u6743\u8861\uff09\u3002<\/li>\n<\/ul>\n<h2>\u5b9e\u6218\u4f18\u5316\u7b56\u7565\uff1a\u63d0\u5347\u547d\u4e2d\u7387\u4e0e\u964d\u4f4e\u5ef6\u8fdf<\/h2>\n<p>\u4e0b\u9762\u5217\u51fa\u53ef\u76f4\u63a5\u843d\u5730\u7684\u5b9e\u6218\u7b56\u7565\uff0c\u6db5\u76d6\u7f13\u5b58\u914d\u7f6e\u3001\u7f51\u7edc\u534f\u8bae\u3001\u7f16\u8bd1\u4e0e\u6784\u5efa\u6d41\u7a0b\u3001\u56de\u6e90\u4e0e\u9884\u70ed\u7b49\u65b9\u9762\u3002<\/p>\n<h3>\u4e00\u3001\u5408\u7406\u8bbe\u8ba1 Cache Key \u4e0e\u5ffd\u7565\u65e0\u7528\u5b57\u6bb5<\/h3>\n<p>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cCDN \u4f1a\u628a\u8bf7\u6c42 URL\uff08\u5305\u62ec query string\uff09\u4f5c\u4e3a\u7f13\u5b58\u952e\u7684\u4e00\u90e8\u5206\u3002\u5f88\u591a\u7535\u5546\u6216\u52a8\u6001\u7ad9\u70b9\u5728 URL \u540e\u9644\u5e26\u8ffd\u8e2a\u53c2\u6570\uff08utm\u3001sessionId \u7b49\uff09\uff0c\u4f1a\u5bfc\u81f4\u7f13\u5b58\u788e\u7247\u5316\u3002\u4f18\u5316\u63aa\u65bd\uff1a<\/p>\n<ul>\n<li>\u660e\u786e\u5141\u8bb8\u7684 query \u53c2\u6570\u767d\u540d\u5355\uff0c\u4ec5\u5c06\u5f71\u54cd\u8d44\u6e90\u5185\u5bb9\u7684\u53c2\u6570\u7eb3\u5165 Cache Key\u3002<\/li>\n<li>\u5265\u79bb\u6216\u89c4\u8303 Cookie\u3001Authorization \u7b49\u5934\u90e8\u5bf9\u9759\u6001\u8d44\u6e90\u7684\u5e72\u6270\uff0c\u6216\u8005\u4f7f\u7528 CDN \u7684 Cookie \u8def\u7531\u89c4\u5219\u4ee5\u5ffd\u7565\u65e0\u5173 Cookie\u3002<\/li>\n<li>\u5bf9\u4e8e\u76f8\u540c\u8d44\u6e90\u7684\u591a\u4e2a Host\uff08\u5982 www \u4e0e\u65e0 www\uff09\uff0c\u7edf\u4e00\u91cd\u5199 Host \u6216\u4f7f\u7528\u89c4\u8303\u5316 URL\u3002<\/li>\n<\/ul>\n<h3>\u4e8c\u3001\u5206\u7ea7 TTL \u4e0e\u667a\u80fd\u5931\u6548\u7b56\u7565<\/h3>\n<p>\u4e0d\u540c\u8d44\u6e90\u5e94\u8bbe\u7f6e\u4e0d\u540c\u7684 TTL\uff1a\u957f TTL \u7528\u4e8e\u56fe\u7247\u3001\u7248\u672c\u5316\u9759\u6001\u8d44\u6e90\uff1b\u77ed TTL \u6216\u65e0\u9700\u7f13\u5b58\u7528\u4e8e\u5b9e\u65f6\u6570\u636e\u3002\u5b9e\u6218\u5efa\u8bae\uff1a<\/p>\n<ul>\n<li>\u5bf9\u53ef\u7248\u672c\u5316\u8d44\u6e90\u91c7\u7528\u6587\u4ef6\u540d\u6307\u7eb9\uff08content hashing\uff09\u7b56\u7565\uff0c\u7ed3\u5408\u957f\u671f\u7f13\u5b58\uff08Cache-Control: max-age=31536000, immutable\uff09\u3002<\/li>\n<li>\u5bf9\u70ed\u70b9 API \u54cd\u5e94\u53ef\u91c7\u7528\u77ed TTL\uff08\u5982 10s-60s\uff09\u5e76\u542f\u7528 stale-while-revalidate \u6216 stale-if-error\uff0c\u4ee5\u51cf\u5c11\u56de\u6e90\u538b\u529b\u5e76\u4fdd\u8bc1\u53ef\u7528\u6027\u3002<\/li>\n<li>\u4f7f\u7528 Surrogate-Control \/ Edge-Control \u5934\u4e3a\u8fb9\u7f18\u8282\u70b9\u4e0e\u6d4f\u89c8\u5668\u5206\u522b\u63a7\u5236\u7f13\u5b58\u884c\u4e3a\u3002<\/li>\n<\/ul>\n<h3>\u4e09\u3001\u9884\u70ed\uff08Cache Warming\uff09\u4e0e\u4e3b\u52a8\u4e0b\u53d1<\/h3>\n<p>\u51b7\u542f\u52a8\u671f\u95f4\uff0c\u70ed\u70b9\u5bf9\u8c61\u672a\u5728\u8fb9\u7f18\u7f13\u5b58\uff0c\u4f1a\u5bfc\u81f4\u9ad8\u5ef6\u8fdf\u3002\u5e38\u89c1\u505a\u6cd5\uff1a<\/p>\n<ul>\n<li>\u6839\u636e\u6d41\u91cf\u5206\u6790\u7ed3\u679c\u5bf9\u70ed\u70b9\u5bf9\u8c61\u8fdb\u884c\u4e3b\u52a8\u9884\u70ed\uff0c\u811a\u672c\u5316\u6279\u91cf\u8bf7\u6c42 CDN \u7684\u8fb9\u7f18\u8282\u70b9\u5730\u5740\u6216\u4f7f\u7528 CDN \u63d0\u4f9b\u7684\u9884\u70ed API\u3002<\/li>\n<li>\u5bf9\u65b0\u53d1\u5e03\u7684\u9759\u6001\u5305\u5728\u90e8\u7f72\u540e\u81ea\u52a8\u89e6\u53d1\u9884\u70ed\u6d41\u7a0b\uff0c\u5c24\u5176\u9002\u7528\u4e8e\u90e8\u7f72\u5728\u9999\u6e2f\u670d\u52a1\u5668\u6216\u7f8e\u56fd\u670d\u52a1\u5668\u7684\u6e90\u7ad9\u3002<\/li>\n<li>\u7ed3\u5408\u8d1f\u8f7d\u5747\u8861\u505a\u70ed\u5907\u4efd\uff0c\u907f\u514d\u5355\u70b9\u56de\u6e90\u538b\u529b\u5cf0\u503c\u3002<\/li>\n<\/ul>\n<h3>\u56db\u3001\u7f13\u5b58\u66ff\u6362\u4e0e\u70ed\u70b9\u4fdd\u62a4\u673a\u5236<\/h3>\n<p>\u70ed\u70b9\u98ce\u66b4\uff08thundering herd\uff09\u4f1a\u5bfc\u81f4\u8fb9\u7f18\u8282\u70b9\u9891\u7e41\u56de\u6e90\u6216\u7f13\u5b58\u88ab\u5feb\u901f\u66ff\u6362\u3002\u5e94\u5bf9\u7b56\u7565\uff1a<\/p>\n<ul>\n<li>\u542f\u7528\u70ed\u70b9\u4fdd\u62a4\uff08hot object protection\uff09\u6216\u201c\u5206\u6bb5\u7f13\u5b58\u201d\uff08segmented caching\uff09\uff0c\u9650\u5236\u540c\u4e00\u5bf9\u8c61\u7684\u5e76\u53d1\u56de\u6e90\u3002<\/li>\n<li>\u5bf9\u8d85\u5927\u6587\u4ef6\u91c7\u7528\u5206\u7247\uff08Range Requests\uff09\u548c\u5206\u6bb5\u7f13\u5b58\uff0c\u4ee5\u51cf\u5c11\u5355\u6b21\u56de\u6e90\u8d1f\u8f7d\u3002<\/li>\n<li>\u4f7f\u7528 LFU\/LRU \u6df7\u5408\u7b56\u7565\u5e76\u52a0\u5165\u4f18\u5148\u7ea7\u7eac\u5ea6\uff08\u70ed\u5ea6\u5206\u7ea7\uff09\u6765\u4fdd\u8bc1\u771f\u6b63\u70ed\u95e8\u5bf9\u8c61\u957f\u671f\u9a7b\u7559\u3002<\/li>\n<\/ul>\n<h3>\u4e94\u3001\u7f51\u7edc\u5c42\u4f18\u5316\uff1a\u534f\u8bae\u4e0e TLS \u914d\u7f6e<\/h3>\n<p>\u7f51\u7edc\u4f20\u8f93\u5c42\u4e5f\u4f1a\u663e\u8457\u5f71\u54cd\u5ef6\u8fdf\uff1a<\/p>\n<ul>\n<li>\u542f\u7528 HTTP\/2 \u6216 HTTP\/3\uff08QUIC\uff09\u6765\u51cf\u5c11\u8fde\u63a5\u5efa\u7acb\u548c\u5934\u90e8\u538b\u7f29\u5f00\u9500\uff0c\u5c24\u5176\u662f\u79fb\u52a8\u7aef\u5927\u91cf\u77ed\u8fde\u63a5\u573a\u666f\u3002<\/li>\n<li>\u5728\u8fb9\u7f18\u542f\u7528 TLS \u4f1a\u8bdd\u590d\u7528\u548c 0-RTT\uff08\u8c28\u614e\u4f7f\u7528\uff09\uff0c\u51cf\u5c11\u63e1\u624b\u5ef6\u8fdf\uff1b\u91c7\u7528 ECDSA \u8bc1\u4e66\u53ef\u964d\u4f4e CPU \u8d1f\u8f7d\u3002<\/li>\n<li>\u5f00\u542f\u591a\u8def\u5f84\u4f20\u8f93\u6216\u667a\u80fd\u8def\u7531\uff08\u5982 Anycast + BGP \u4f18\u5316\uff09\u4ee5\u63d0\u5347\u8de8\u5883\u8bbf\u95ee\uff08\u5982\u4ece\u9999\u6e2f\u8bbf\u95ee\u65e5\u672c\u670d\u52a1\u5668\u6216\u65b0\u52a0\u5761\u670d\u52a1\u5668\uff09\u7684\u7a33\u5b9a\u6027\u3002<\/li>\n<\/ul>\n<h3>\u516d\u3001\u8fb9\u7f18\u8ba1\u7b97\u4e0e\u8fd1\u6e90\u6e32\u67d3<\/h3>\n<p>\u5bf9\u4e8e\u9700\u8981\u4e2a\u6027\u5316\u4f46\u53c8\u5177\u6709\u70ed\u70b9\u7279\u5f81\u7684\u5185\u5bb9\uff08\u5982\u70ed\u95e8\u641c\u7d22\u7ed3\u679c\u7684\u7247\u6bb5\uff09\uff0c\u53ef\u4ee5\u5c06\u90e8\u5206\u903b\u8f91\u4e0b\u6c89\u5230\u8fb9\u7f18\uff08Edge Functions\u3001Workers\uff09\uff1a<\/p>\n<ul>\n<li>\u5728\u8fb9\u7f18\u505a\u8f7b\u91cf\u5316\u7684\u7f13\u5b58\u5408\u6210\u4e0e\u6a21\u677f\u6e32\u67d3\uff0c\u51cf\u5c11\u56de\u6e90\u6b21\u6570\u3002<\/li>\n<li>\u914d\u5408 Redis\u3001KV \u5b58\u50a8\u6216\u8fb9\u7f18\u952e\u503c\u5b58\u50a8\u7f13\u5b58\u70ed\u70b9\u6570\u636e\uff0c\u63d0\u9ad8\u547d\u4e2d\u7387\u3002<\/li>\n<\/ul>\n<h3>\u4e03\u3001\u76d1\u63a7\u3001\u544a\u8b66\u4e0e\u6301\u7eed\u4f18\u5316<\/h3>\n<p>\u6301\u7eed\u76d1\u63a7\u7f13\u5b58\u547d\u4e2d\u7387\u3001\u56de\u6e90\u6bd4\u4f8b\u3001\u8fb9\u7f18\u8d1f\u8f7d\u4ee5\u53ca\u94fe\u8def\u5ef6\u65f6\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\uff1a<\/p>\n<ul>\n<li>\u5173\u952e\u6307\u6807\uff1aEdge Hit Ratio\u3001Miss Latency\u3001Origin Bandwidth\u3001Response Time P95\/P99\u3002<\/li>\n<li>\u8bbe\u7f6e\u9608\u503c\u544a\u8b66\uff08\u5982\u77ed\u65f6\u95f4\u5185\u56de\u6e90\u7387\u7a81\u589e\uff09\uff0c\u5e76\u5efa\u7acb\u81ea\u52a8\u5316\u56de\u9000\u6216\u9650\u6d41\u7b56\u7565\u3002<\/li>\n<li>\u5b9a\u671f\u56de\u987e\u70ed\u70b9\u6e05\u5355\uff0c\u7ed3\u5408\u8bbf\u95ee\u8d8b\u52bf\u8c03\u6574 TTL\u3001\u9884\u70ed\u8303\u56f4\u4e0e\u7f13\u5b58\u952e\u7b56\u7565\u3002<\/li>\n<\/ul>\n<h2>\u5e94\u7528\u573a\u666f\u4e0e\u4f18\u52bf\u5bf9\u6bd4<\/h2>\n<p>\u4e0d\u540c\u4e1a\u52a1\u573a\u666f\u5bf9\u70ed\u70b9\u5206\u53d1\u7684\u4fa7\u91cd\u70b9\u4e0d\u540c\uff1a<\/p>\n<ul>\n<li>\u9759\u6001\u7f51\u7ad9\u4e0e CDN \u9759\u6001\u8d44\u6e90\uff1a\u5f3a\u8c03\u957f\u671f\u9ad8\u7f13\u5b58\u547d\u4e2d\uff0c\u4f18\u5148\u4f7f\u7528\u6587\u4ef6\u6307\u7eb9\u4e0e\u957f TTL\uff0c\u9002\u5408\u6258\u7ba1\u5728\u9999\u6e2f\u670d\u52a1\u5668\u6216\u65e5\u672c\u670d\u52a1\u5668\u9762\u5411\u4e9a\u592a\u7528\u6237\u3002<\/li>\n<li>\u7535\u5546\u9996\u9875\u4e0e\u5546\u54c1\u8be6\u60c5\u9875\uff1a\u70ed\u70b9\u96c6\u4e2d\u4e14\u9891\u7e41\u66f4\u65b0\uff0c\u9002\u5408\u77ed TTL + edge compute + \u70ed\u70b9\u4fdd\u62a4\u3002<\/li>\n<li>\u89c6\u9891\u4e0e\u5927\u6587\u4ef6\u5206\u53d1\uff1a\u5efa\u8bae\u4f7f\u7528\u5206\u7247\u3001Range \u7f13\u5b58\u4e0e\u6d41\u5a92\u4f53\u4f18\u5316\uff0c\u7ed3\u5408\u7f8e\u56fdVPS \u6216\u65b0\u52a0\u5761\u670d\u52a1\u5668\u505a\u8de8\u533a\u57df\u52a0\u901f\u3002<\/li>\n<li>API \u4e0e\u52a8\u6001\u5185\u5bb9\uff1a\u4f7f\u7528\u7f13\u5b58\u5c42\uff08\u5982 CDN + edge cache\uff09\u548c\u7f13\u5b58\u65c1\u8def\uff08cache aside\uff09\u7b56\u7565\uff0c\u7ed3\u5408\u4e00\u81f4\u6027\u914d\u7f6e\u964d\u4f4e\u7f13\u5b58\u6c61\u67d3\u3002<\/li>\n<\/ul>\n<h2>\u9009\u8d2d\u4e0e\u90e8\u7f72\u5efa\u8bae<\/h2>\n<p>\u5728\u9009\u62e9 CDN \u4e0e\u6e90\u7ad9\u90e8\u7f72\u65f6\u5e94\u8003\u8651\u4ee5\u4e0b\u56e0\u7d20\uff1a<\/p>\n<ul>\n<li><strong>\u8282\u70b9\u8986\u76d6\u4e0e\u9aa8\u5e72\u7f51\u7edc\u8d28\u91cf<\/strong>\uff1a\u82e5\u4e3b\u8981\u7528\u6237\u5728\u6e2f\u6fb3\u53f0\u4e0e\u4e1c\u5357\u4e9a\uff0c\u4f18\u5148\u8003\u8651\u5728\u9999\u6e2f\u3001\u53f0\u6e7e\u3001\u65b0\u52a0\u5761\u3001\u65e5\u672c\u3001\u97e9\u56fd\u8282\u70b9\u8868\u73b0\u597d\u7684\u4f9b\u5e94\u5546\uff1b\u82e5\u6709\u5927\u91cf\u7f8e\u56fd\u7528\u6237\uff0c\u9700\u8bc4\u4f30\u7f8e\u56fd\u8282\u70b9\u4e0e\u56de\u6e90\u5230\u7f8e\u56fd\u670d\u52a1\u5668\u7684\u6027\u80fd\u3002<\/li>\n<li><strong>\u5b9a\u4ef7\u4e0e\u8ba1\u8d39\u6a21\u578b<\/strong>\uff1a\u5173\u6ce8\u8bf7\u6c42\u8ba1\u8d39\u3001\u5e26\u5bbd\u5cf0\u503c\u3001\u7f13\u5b58\u9884\u70ed\/\u6e05\u7406\u8d39\u7528\u4ee5\u53ca\u8de8\u533a\u57df\u6d41\u91cf\u8d39\u7528\u3002<\/li>\n<li><strong>\u529f\u80fd\u96c6\u6210\u80fd\u529b<\/strong>\uff1a\u662f\u5426\u652f\u6301\u81ea\u5b9a\u4e49 Cache Key\u3001Edge Functions\u3001\u9884\u70ed API\u3001\u70ed\u70b9\u4fdd\u62a4\u3001\u8be6\u7ec6\u65e5\u5fd7\u4e0e\u7b2c\u4e09\u65b9\u76d1\u63a7\u5bf9\u63a5\u3002<\/li>\n<li><strong>\u4e0e\u73b0\u6709\u57fa\u7840\u8bbe\u65bd\u5951\u5408\u5ea6<\/strong>\uff1a\u5982\u6e90\u7ad9\u90e8\u7f72\u5728\u9999\u6e2f\u670d\u52a1\u5668\u3001\u4f7f\u7528\u9999\u6e2fVPS \u505a\u8fb9\u7f18\u7f13\u5b58\u4ee3\u7406\u6216\u7ba1\u7406\u57df\u540d\u6ce8\u518c\u7684 DNS \u670d\u52a1\uff0c\u9700\u786e\u4fdd DNS \u89e3\u6790\u7b56\u7565\uff08\u5982 Geo DNS\u3001Anycast\uff09\u4e0e CDN \u8c03\u5ea6\u517c\u5bb9\u3002<\/li>\n<\/ul>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u901a\u8fc7\u5bf9\u70ed\u70b9\u8d44\u6e90\u7684\u7cbe\u786e\u8bc6\u522b\u3001\u5408\u7406\u6784\u5efa\u7f13\u5b58\u952e\u3001\u91c7\u7528\u5206\u5c42 TTL \u7b56\u7565\u3001\u9884\u70ed\u4e0e\u70ed\u70b9\u4fdd\u62a4\u3001\u4ee5\u53ca\u7f51\u7edc\u5c42\u4e0e\u8fb9\u7f18\u8ba1\u7b97\u7684\u4f18\u5316\uff0c\u53ef\u4ee5\u5728\u63d0\u5347\u7f13\u5b58\u547d\u4e2d\u7387\u7684\u540c\u65f6\u663e\u8457\u964d\u4f4e\u7528\u6237\u7aef\u5ef6\u8fdf\u548c\u6e90\u7ad9\u538b\u529b\u3002\u5b9e\u8df5\u4e2d\u9700\u7ed3\u5408\u76d1\u63a7\u6570\u636e\u6301\u7eed\u8c03\u4f18\uff0c\u5e76\u9488\u5bf9\u4e0d\u540c\u5730\u57df\uff08\u5982\u9999\u6e2f\u3001\u65e5\u672c\u3001\u97e9\u56fd\u3001\u65b0\u52a0\u5761\u3001\u7f8e\u56fd\uff09\u4e0e\u4e0d\u540c\u6e90\u7ad9\u7c7b\u578b\uff08\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u3001\u9999\u6e2fVPS\u3001\u7f8e\u56fdVPS\uff09\u5236\u5b9a\u5dee\u5f02\u5316\u7b56\u7565\u3002\u4e0e\u6b64\u540c\u65f6\uff0c\u826f\u597d\u7684\u57df\u540d\u6ce8\u518c\u4e0e DNS \u7b56\u7565\u4e5f\u662f\u4fdd\u8bc1\u5168\u7403\u8bbf\u95ee\u4f53\u9a8c\u7684\u57fa\u7840\u3002<\/p>\n<p>\u82e5\u60a8\u5e0c\u671b\u5feb\u901f\u542f\u52a8\u6216\u6269\u5c55\u6d77\u5916\u8282\u70b9\u90e8\u7f72\uff0c\u53ef\u4ee5\u53c2\u8003\u6211\u4eec\u7684\u4ea7\u54c1\u4e0e\u57fa\u7840\u8bbe\u65bd\u8d44\u6e90\uff1a\u8bbf\u95ee <a href=\"https:\/\/server.hk\/\">Server.HK<\/a> \u6216\u67e5\u770b\u53ef\u7528\u7684\u670d\u52a1\u5668\u5957\u9910\uff08\u542b\u9999\u6e2f\u670d\u52a1\u5668\u7b49\uff09\u5728\u6b64\u9875\u9762\uff1a<a href=\"https:\/\/server.hk\/server.php\">\u9999\u6e2f\u670d\u52a1\u5668\u4e0e\u6d77\u5916\u670d\u52a1\u5668\u65b9\u6848<\/a>\uff0c\u5e2e\u52a9\u60a8\u66f4\u597d\u5730\u4e0e CDN \u7b56\u7565\u7ed3\u5408\u90e8\u7f72\u6e90\u7ad9\u4e0e\u8fb9\u7f18\u65b9\u6848\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u5168\u7403\u5316\u4e0e\u79fb\u52a8\u6d41\u91cf\u6fc0\u589e\u7684\u4eca\u5929\uff0cCDN \u70ed\u70b9\u8d44\u6e90\u5206\u53d1\u662f\u63d0\u5347\u7f13\u5b58\u547d\u4e2d\u7387\u4e0e\u964d\u4f4e\u5ef6\u8fdf\u3001\u8282\u7701\u5e26\u5bbd\u6210\u672c\u7684\u5173\u952e\u4e00\u73af\u3002\u672c\u6587\u9762\u5411\u7ad9\u957f\u3001\u8fd0\u7ef4\u4e0e\u5f00\u53d1\u8005\uff0c\u4ece\u539f\u7406\u5230\u5b9e\u6218\u7ed9\u51fa\u53ef\u843d\u5730\u7b56\u7565\uff0c\u5e2e\u4f60\u628a\u70ed\u95e8 JS\/CSS\u3001\u56fe\u7247\u548c\u89c6\u9891\u7247\u6bb5\u53d8\u6210\u9760\u8fd1\u7528\u6237\u7684\u9ad8\u547d\u4e2d\u7f13\u5b58\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4928],"tags":[2848,3060,1051,3062,3028,488,3061,2154,3063],"class_list":{"0":"post-209567","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-4928","7":"tag-cdn","9":"tag-1051","10":"tag-3062","11":"tag-3028","12":"tag-488","13":"tag-3061","14":"tag-2154","15":"tag-3063"},"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/209567","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=209567"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/209567\/revisions"}],"predecessor-version":[{"id":209568,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/209567\/revisions\/209568"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=209567"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=209567"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=209567"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}