{"id":209891,"date":"2025-10-24T00:51:20","date_gmt":"2025-10-23T16:51:20","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209891\/"},"modified":"2025-10-24T00:51:22","modified_gmt":"2025-10-23T16:51:22","slug":"cdn-179","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209891\/","title":{"rendered":"CDN\u7f13\u5b58\u5237\u65b0\u7b56\u7565\u5dee\u5f02\u4e00\u89c8\uff1a\u5982\u4f55\u9009\u5bf9\u6700\u4f18\u65b9\u6848"},"content":{"rendered":"<p>\u5728\u5168\u7403\u5316\u4e92\u8054\u7f51\u67b6\u6784\u4e2d\uff0cCDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u4e0d\u4ec5\u51b3\u5b9a\u5185\u5bb9\u4ea4\u4ed8\u901f\u5ea6\uff0c\u8fd8\u76f4\u63a5\u5f71\u54cd\u7f13\u5b58\u4e00\u81f4\u6027\u3001\u90e8\u7f72\u6548\u7387\u4e0e\u6210\u672c\u3002\u5bf9\u4e8e\u7ad9\u957f\u3001\u4f01\u4e1a\u4e0e\u5f00\u53d1\u8005\u800c\u8a00\uff0c\u9009\u62e9\u5408\u9002\u7684\u7f13\u5b58\u5237\u65b0\u7b56\u7565\uff08Cache Invalidation \/ Purge \/ Eviction\uff09\u662f\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u4e0e\u8fd0\u7ef4\u53ef\u63a7\u6027\u7684\u5173\u952e\u4e00\u6b65\u3002\u672c\u6587\u5206\u5c42\u89e3\u6790\u7f13\u5b58\u5237\u65b0\u539f\u7406\u3001\u5e38\u89c1\u7b56\u7565\u3001\u5728\u4e0d\u540c\u573a\u666f\uff08\u9759\u6001\u8d44\u6e90\u3001\u52a8\u6001\u9875\u9762\u3001API\u3001\u89c6\u9891\u5927\u4f53\u91cf\u5206\u53d1\uff09\u4e0b\u7684\u4f18\u52a3\uff0c\u5e76\u7ed9\u51fa\u5b9e\u9645\u53ef\u843d\u5730\u7684\u9009\u8d2d\u4e0e\u90e8\u7f72\u5efa\u8bae\uff0c\u5e2e\u52a9\u4f60\u5728\u90e8\u7f72\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u6216\u6d77\u5916\u670d\u52a1\u5668\uff08\u5305\u62ec\u65e5\u672c\u670d\u52a1\u5668\u3001\u97e9\u56fd\u670d\u52a1\u5668\u3001\u65b0\u52a0\u5761\u670d\u52a1\u5668\uff09\u65f6\uff0c\u9009\u5bf9\u6700\u4f18\u65b9\u6848\u3002<\/p>\n<h2>\u7f13\u5b58\u5237\u65b0\u57fa\u672c\u539f\u7406\u4e0e\u5173\u952e\u6982\u5ff5<\/h2>\n<p>\u7406\u89e3\u7f13\u5b58\u5237\u65b0\u7b56\u7565\uff0c\u5148\u8981\u660e\u786e\u51e0\u4e2a\u57fa\u7840\u6982\u5ff5\uff1a<\/p>\n<ul>\n<li><strong>TTL\uff08Time To Live\uff09<\/strong>\uff1a\u8d44\u6e90\u5728\u8fb9\u7f18\u8282\u70b9\u4fdd\u7559\u7684\u9ed8\u8ba4\u65f6\u95f4\uff0c\u8fc7\u671f\u540e\u4f1a\u5411\u6e90\u7ad9\u9a8c\u8bc1\u6216\u56de\u6e90\u3002<\/li>\n<li><strong>\u5f3a\u5236\u5237\u65b0\uff08Purge\/Invalidate\uff09<\/strong>\uff1a\u624b\u52a8\u6216\u901a\u8fc7API\u5c06\u6307\u5b9a\u8d44\u6e90\u4ece\u8fb9\u7f18\u8282\u70b9\u79fb\u9664\u6216\u6807\u8bb0\u4e3a\u8fc7\u671f\uff0c\u4e0b\u4e00\u6b21\u8bf7\u6c42\u9700\u56de\u6e90\u3002<\/li>\n<li><strong>\u8f6f\u5237\u65b0\uff08Soft Purge \/ Mark Stale\uff09<\/strong>\uff1a\u6807\u8bb0\u4e3a\u5df2\u8fc7\u671f\u4f46\u4fdd\u7559\u539f\u59cb\u526f\u672c\uff0c\u77ed\u65f6\u95f4\u5185\u53ef\u7ee7\u7eed\u63d0\u4f9b\u65e7\u5185\u5bb9\uff0c\u540e\u53f0\u5f02\u6b65\u56de\u6e90\u66f4\u65b0\uff0c\u5e38\u7528\u4e8e\u4fdd\u6301\u53ef\u7528\u6027\u3002<\/li>\n<li><strong>\u7f13\u5b58\u952e\uff08Cache Key\uff09<\/strong>\uff1a\u51b3\u5b9a\u54ea\u4e9b\u8bf7\u6c42\u547d\u4e2d\u540c\u4e00\u7f13\u5b58\u526f\u672c\uff0c\u901a\u5e38\u57fa\u4e8eURL\u3001Query String\u3001\u8bf7\u6c42\u5934\uff08Vary\uff09\u7b49\u3002<\/li>\n<li><strong>\u6761\u4ef6\u8bf7\u6c42\uff08Conditional GET\uff09<\/strong>\uff1a\u901a\u8fc7 ETag \/ Last-Modified \u5224\u65ad\u8d44\u6e90\u662f\u5426\u88ab\u4fee\u6539\uff0c\u4ece\u800c\u907f\u514d\u4f20\u8f93\u5b8c\u6574\u8d44\u6e90\u3002<\/li>\n<\/ul>\n<h3>\u5e38\u89c1HTTP\u7f13\u5b58\u5934\u4e0e\u7b56\u7565<\/h3>\n<p>\u5f00\u53d1\u8005\u5e94\u719f\u7ec3\u8fd0\u7528\u4ee5\u4e0b\u54cd\u5e94\u5934\u6765\u63a7\u5236CDN\u884c\u4e3a\uff1a<\/p>\n<ul>\n<li><strong>Cache-Control:<\/strong> max-age, s-maxage, public\/private, no-cache, no-store, must-revalidate \u7b49\u3002<\/li>\n<li><strong>Surrogate-Control\/Surrogate-Key:<\/strong> \u4e13\u4e3aCDN\u8bbe\u8ba1\uff0c\u53ef\u5728\u8fb9\u7f18\u505a\u66f4\u7cbe\u7ec6\u7684\u5206\u7ec4\u4e0e\u6279\u91cf\u6e05\u7406\u3002<\/li>\n<li><strong>ETag \/ Last-Modified:<\/strong> \u652f\u6301\u6761\u4ef6\u8bf7\u6c42\uff0c\u51cf\u5c11\u56de\u6e90\u5e26\u5bbd\u3002<\/li>\n<li><strong>Vary:<\/strong> \u6307\u793a\u7f13\u5b58\u5e94\u8003\u8651\u54ea\u4e9b\u8bf7\u6c42\u5934\uff08\u5982 User-Agent\u3001Accept-Encoding\uff09\uff0c\u907f\u514d\u9519\u8bef\u547d\u4e2d\u3002<\/li>\n<\/ul>\n<h2>\u4e3b\u6d41\u7f13\u5b58\u5237\u65b0\u7b56\u7565\u4e0e\u6280\u672f\u7ec6\u8282\u5bf9\u6bd4<\/h2>\n<p>\u4e0b\u9762\u6309\u7b56\u7565\u7c7b\u578b\u5c55\u5f00\uff0c\u5217\u51fa\u5b9e\u73b0\u65b9\u5f0f\u3001\u4f18\u7f3a\u70b9\u4e0e\u9002\u7528\u573a\u666f\u3002<\/p>\n<h3>1. \u57fa\u4e8eTTL\u7684\u81ea\u7136\u5931\u6548\uff08Passive Expiration\uff09<\/h3>\n<p>\u5b9e\u73b0\uff1a\u914d\u7f6e\u5408\u7406\u7684TTL\uff0c\u8d44\u6e90\u5728\u8fb9\u7f18\u8282\u70b9\u81ea\u52a8\u8fc7\u671f\u3002<\/p>\n<ul>\n<li>\u4f18\u70b9\uff1a\u7b80\u5355\u3001\u4f4e\u6210\u672c\u3001\u65e0\u9700\u989d\u5916API\u8c03\u7528\uff1b\u5bf9\u9759\u6001\u8d44\u6e90\uff08JS\/CSS\/\u56fe\u7247\uff09\u975e\u5e38\u9ad8\u6548\u3002<\/li>\n<li>\u7f3a\u70b9\uff1a\u65e0\u6cd5\u5b9e\u65f6\u4e0b\u7ebf\u9519\u8bef\u6216\u654f\u611f\u53d8\u66f4\uff1b\u5bf9\u9891\u7e41\u66f4\u65b0\u5185\u5bb9\u6548\u7387\u4f4e\u3002<\/li>\n<li>\u9002\u7528\u573a\u666f\uff1a\u9759\u6001\u6258\u7ba1\u3001\u5927\u6587\u4ef6\uff08\u955c\u50cf\u3001\u4e0b\u8f7d\uff09\u548c CDN \u7f13\u5b58\u53cb\u597d\u7684\u516c\u5171\u8d44\u6e90\u3002<\/li>\n<\/ul>\n<h3>2. \u4e3b\u52a8\u6e05\u7406\uff08Purge \/ Invalidate\uff09<\/h3>\n<p>\u5b9e\u73b0\uff1a\u901a\u8fc7\u63a7\u5236\u9762\u677f\u6216API\u6307\u5b9a URL\u3001\u524d\u7f00\u6216\u5e26\u901a\u914d\u7b26\u7684\u8d44\u6e90\u8fdb\u884c\u5f3a\u5236\u5237\u65b0\u3002<\/p>\n<ul>\n<li>\u4f18\u70b9\uff1a\u53ef\u5373\u65f6\u5931\u6548\uff0c\u9002\u5408\u4fee\u590d\u7d27\u6025\u5185\u5bb9\u6216\u4e0b\u7ebf\u654f\u611f\u4fe1\u606f\u3002<\/li>\n<li>\u7f3a\u70b9\uff1a\u9891\u7e41\u8c03\u7528\u53ef\u80fd\u6709\u6210\u672c\u6216\u901f\u7387\u9650\u5236\uff1b\u5927\u89c4\u6a21\u6e05\u7406\u53ef\u80fd\u89e6\u53d1\u56de\u6e90\u98ce\u66b4\u3002<\/li>\n<li>\u6280\u672f\u7ec6\u8282\uff1a\u4f7f\u7528\u6279\u91cf\u5316\u3001\u5206\u6279\u6e05\u7406\u3001\u914d\u5408 Origin Shield \u6216\u6e90\u7ad9\u9650\u6d41\uff0c\u907f\u514d\u56de\u6e90\u77ac\u65f6\u9ad8\u5e76\u53d1\u3002<\/li>\n<\/ul>\n<h3>3. \u7248\u672c\u5316\uff08Cache Busting \/ Fingerprinting\uff09<\/h3>\n<p>\u5b9e\u73b0\uff1a\u901a\u8fc7\u5728\u8d44\u6e90\u540d\u6216URL\u4e2d\u52a0\u5165\u7248\u672c\u53f7\/\u54c8\u5e0c\uff08\u4f8b\u5982 app.v1.2.3.js \u6216 style.abc123.css\uff09\u3002<\/p>\n<ul>\n<li>\u4f18\u70b9\uff1a\u65e0\u9700CDN\u6e05\u7406\uff0c\u90e8\u7f72\u65b0\u7248\u672c\u77ac\u65f6\u53ef\u7528\uff1b\u4e0e\u957fTTL\u7ed3\u5408\u6548\u679c\u6700\u4f73\uff0c\u63d0\u5347\u7f13\u5b58\u547d\u4e2d\u7387\u3002<\/li>\n<li>\u7f3a\u70b9\uff1a\u9700\u8981\u6784\u5efa\u6d41\u7a0b\u652f\u6301\uff1b\u5bf9HTML\u9875\u9762\u7b49\u65e0\u6cd5\u65b9\u4fbf\u6307\u7eb9\u5316\u7684\u5185\u5bb9\u65e0\u6548\u3002<\/li>\n<li>\u9002\u7528\u573a\u666f\uff1a\u524d\u7aef\u9759\u6001\u8d44\u6e90\u3001\u5e93\u6587\u4ef6\u3001\u6253\u5305\u8f93\u51fa\u7b49\u3002<\/li>\n<\/ul>\n<h3>4. \u6761\u4ef6\u56de\u6e90\u4e0e\u534f\u5546\u7f13\u5b58\uff08ETag \/ If-Modified-Since\uff09<\/h3>\n<p>\u5b9e\u73b0\uff1a\u8fb9\u7f18\u5728\u8d44\u6e90\u5230\u671f\u540e\u5411\u6e90\u7ad9\u53d1\u8d77\u5e26\u6761\u4ef6\u7684\u8bf7\u6c42\uff0c\u6e90\u7ad9\u53ea\u5728\u8d44\u6e90\u53d8\u5316\u65f6\u8fd4\u56de\u65b0\u5185\u5bb9\uff08304\uff09\u3002<\/p>\n<ul>\n<li>\u4f18\u70b9\uff1a\u8282\u7701\u56de\u6e90\u5e26\u5bbd\uff1b\u9002\u5408\u5185\u5bb9\u53d8\u5316\u5c11\u4f46\u4ecd\u9700\u9a8c\u8bc1\u7684\u60c5\u51b5\u3002<\/li>\n<li>\u7f3a\u70b9\uff1a\u589e\u52a0\u6e90\u7ad9\u8ba1\u7b97\u538b\u529b\uff0c\u5ef6\u8fdf\u7565\u9ad8\u4e8e\u5b8c\u5168\u547d\u4e2d\u3002<\/li>\n<\/ul>\n<h3>5. \u8f6f\u5237\u65b0\u4e0e\u5ef6\u8fdf\u5931\u6548\uff08Stale-while-revalidate \/ Stale-if-error\uff09<\/h3>\n<p>\u5b9e\u73b0\uff1a\u8fb9\u7f18\u8282\u70b9\u5728\u8d44\u6e90\u8fc7\u671f\u540e\u7ee7\u7eed\u8fd4\u56de\u65e7\u5185\u5bb9\uff0c\u540c\u65f6\u5f02\u6b65\u56de\u6e90\u66f4\u65b0\uff1b\u9047\u5230\u6e90\u7ad9\u9519\u8bef\u65f6\u7ee7\u7eed\u63d0\u4f9b\u65e7\u7248\u672c\u3002<\/p>\n<ul>\n<li>\u4f18\u70b9\uff1a\u63d0\u5347\u53ef\u7528\u6027\u4e0e\u7a33\u5b9a\u6027\uff0c\u907f\u514d\u56de\u6e90\u98ce\u66b4\u5f71\u54cd\u7528\u6237\u4f53\u9a8c\u3002<\/li>\n<li>\u7f3a\u70b9\uff1a\u5728\u77ed\u65f6\u95f4\u5185\u53ef\u80fd\u5411\u7528\u6237\u5c55\u793a\u8fc7\u671f\u6570\u636e\uff0c\u4e0d\u9002\u7528\u4e8e\u9ad8\u5ea6\u5b9e\u65f6\u6027\u573a\u666f\u3002<\/li>\n<li>\u5e94\u7528\u5efa\u8bae\uff1a\u5bf9\u7535\u5546\u5546\u54c1\u8be6\u60c5\u3001\u65b0\u95fb\u7c7b\u9875\u9762\u53ef\u9002\u5f53\u4f7f\u7528\u77ed\u65f6\u95f4\u7684 stale-while-revalidate\u3002<\/li>\n<\/ul>\n<h3>6. \u5206\u5c42\u7f13\u5b58\u4e0eOrigin Shield<\/h3>\n<p>\u5b9e\u73b0\uff1a\u8bbe\u7f6e\u4e2d\u95f4\u5c42\u7f13\u5b58\uff08\u5982\u533a\u57df\u6027\u7f13\u5b58\u8282\u70b9\u6216 Origin Shield\uff09\uff0c\u51cf\u5c11\u6e90\u7ad9\u8fde\u63a5\u6570\u5e76\u63d0\u9ad8\u6e05\u7406\u6548\u7387\u3002<\/p>\n<ul>\n<li>\u4f18\u70b9\uff1a\u5f53\u505a\u201c\u7f13\u5b58\u540e\u7684\u7f13\u5b58\u201d\uff0c\u964d\u4f4e\u6e90\u7ad9\u538b\u529b\u4e0e\u5168\u7403\u4f20\u64ad\u5ef6\u8fdf\u3002<\/li>\n<li>\u7f3a\u70b9\uff1a\u589e\u52a0\u67b6\u6784\u590d\u6742\u5ea6\u4e0e\u6210\u672c\u3002<\/li>\n<\/ul>\n<h2>\u5e94\u7528\u573a\u666f\u4e0e\u7b56\u7565\u5efa\u8bae\uff08\u542b\u5730\u57df\u6027\u8003\u8651\uff09<\/h2>\n<p>\u4e0d\u540c\u4e1a\u52a1\u4e0e\u90e8\u7f72\u5730\u4f1a\u5f71\u54cd\u6700\u4f73\u7b56\u7565\u9009\u62e9\u3002\u4e0b\u9762\u6309\u5e38\u89c1\u573a\u666f\u7ed9\u51fa\u5efa\u8bae\uff1a<\/p>\n<h3>\u9759\u6001\u8d44\u6e90\uff08JS\/CSS\/\u56fe\u7247\uff09<\/h3>\n<p>\u4f18\u5148\u91c7\u7528<strong>\u7248\u672c\u5316 + \u957fTTL<\/strong>\uff0c\u5e76\u7ed3\u5408CDN\u8fb9\u7f18\u7f13\u5b58\u3002\u5bf9\u4e8e\u9762\u5411\u9999\u6e2f\u3001\u4e1c\u4e9a\u6216\u4e1c\u5357\u4e9a\u7528\u6237\uff08\u5982\u4f7f\u7528\u9999\u6e2fVPS\u3001\u9999\u6e2f\u670d\u52a1\u5668\u3001\u65e5\u672c\u670d\u52a1\u5668\u3001\u97e9\u56fd\u670d\u52a1\u5668\u3001\u65b0\u52a0\u5761\u670d\u52a1\u5668\uff09\u65f6\uff0c\u5229\u7528\u533a\u57df\u5316\u8282\u70b9\u4e0e\u77ed\u8ddd\u79bb\u56de\u6e90\u53ef\u4ee5\u8fdb\u4e00\u6b65\u964d\u4f4e\u5ef6\u8fdf\u3002<\/p>\n<h3>\u52a8\u6001\u9875\u9762\u4e0e\u4e2a\u6027\u5316\u5185\u5bb9<\/h3>\n<p>\u5bf9\u7528\u6237\u654f\u611f\u6216\u9700\u5b9e\u65f6\u66f4\u65b0\u7684\u9875\u9762\uff0c\u4f7f\u7528<strong>\u77edTTL + \u6761\u4ef6\u56de\u6e90 + \u67d0\u4e9b\u8def\u5f84\u7684\u4e3b\u52a8\u6e05\u7406<\/strong>\u3002\u53ef\u628a\u53ef\u7f13\u5b58\u90e8\u5206\u62c6\u5206\uff08\u8fb9\u8def\u7531\/Edge Side Includes, ESI\uff09\uff0c\u9759\u6001\u90e8\u5206\u653e\u5230CDN\uff0c\u52a8\u6001\u90e8\u5206\u7531\u540e\u7aef\u5b9e\u65f6\u6e32\u67d3\u3002<\/p>\n<h3>API\u4e0e\u5b9e\u65f6\u6570\u636e<\/h3>\n<p>API\u901a\u5e38\u4e0d\u80fd\u957f\u65f6\u95f4\u7f13\u5b58\uff0c\u4f46\u53ef\u4ee5\u901a\u8fc7\u54cd\u5e94\u5934\u63a7\u5236\u5c40\u90e8\u7f13\u5b58\uff08\u5982s-maxage\uff09\u6216\u5f15\u5165CDN\u7684\u8fb9\u7f18\u8ba1\u7b97\u80fd\u529b\u505a\u805a\u5408\u7f13\u5b58\uff1b\u5bf9\u4e8e\u5168\u7403\u5206\u5e03\u7684\u7528\u6237\uff08\u5305\u62ec\u4f7f\u7528\u7f8e\u56fd\u670d\u52a1\u5668\u6216\u7f8e\u56fdVPS\u7684\u5ba2\u6237\uff09\uff0c\u5408\u7406\u5229\u7528\u533a\u57df\u6027\u7f13\u5b58\u4e0e\u9650\u6d41\u7b56\u7565\u51cf\u5c0f\u56de\u6e90\u538b\u529b\u3002<\/p>\n<h3>\u5927\u6587\u4ef6\/\u5a92\u4f53\uff08\u89c6\u9891\u3001\u955c\u50cf\uff09<\/h3>\n<p>\u91c7\u7528\u957fTTL\u4e0e\u5206\u6bb5\u4f20\u8f93\uff08range requests\uff09\uff0c\u5e76\u7ed3\u5408\u8fb9\u7f18\u9884\u70ed\u6216\u9884\u53d6\u3002\u5bf9\u4e8e\u8de8\u56fd\u5206\u53d1\uff0c\u5efa\u8bae\u5728\u4e3b\u8981\u533a\u57df\uff08\u7f8e\u3001\u6e2f\u3001\u65e5\u3001\u97e9\u3001\u65b0\u52a0\u5761\uff09\u90e8\u7f72\u591a\u70b9\u6e90\u6216\u4f7f\u7528\u591a\u533a\u57df\u8d1f\u8f7d\u7b56\u7565\u3002<\/p>\n<h2>\u5b9e\u52a1\u64cd\u4f5c\u8981\u70b9\u4e0e\u8fd0\u7ef4\u5efa\u8bae<\/h2>\n<ul>\n<li>\u8bbe\u8ba1\u4e00\u81f4\u7684\u7f13\u5b58\u952e\uff1a\u786e\u4fddQuery String\u3001Cookie\u3001Host\u7b49\u4ec5\u5728\u5fc5\u8981\u65f6\u53c2\u4e0eCache Key\uff0c\u4ee5\u907f\u514d\u7f13\u5b58\u788e\u7247\u5316\u3002<\/li>\n<li>\u5206\u7ec4\u6e05\u7406\u7b56\u7565\uff1a\u5bf9\u9891\u7e41\u66f4\u65b0\u7684\u8d44\u6e90\u4f7f\u7528 surrogate-key\/\u6807\u7b7e\u5316\uff0c\u7136\u540e\u6309 tag \u6279\u91cf purge\uff0c\u964d\u4f4e\u5355\u6b21\u6e05\u7406\u91cf\u4e0eAPI\u8c03\u7528\u6b21\u6570\u3002<\/li>\n<li>\u4f7f\u7528\u8f6f\u6e05\u7406\u7ed3\u5408\u76d1\u63a7\uff1a\u914d\u7f6e stale-while-revalidate \u4e0e\u5065\u5eb7\u68c0\u67e5\uff0c\u907f\u514d\u5728\u6e90\u7ad9\u6545\u969c\u65f6\u7528\u6237\u4f53\u9a8c\u5d29\u76d8\u3002<\/li>\n<li>\u63a7\u5236\u901f\u7387\u4e0e\u56de\u6e90\u4fdd\u62a4\uff1a\u5728\u8fdb\u884c\u5927\u89c4\u6a21 purge \u65f6\u91c7\u7528\u5206\u6279\u7b56\u7565\uff0c\u6216\u4e34\u65f6\u63d0\u5347 Origin Shield \u7ea7\u522b\uff0c\u907f\u514d\u6e90\u7ad9\u88ab\u5237\u7206\u3002<\/li>\n<li>\u6d4b\u8bd5\u4e0e\u7070\u5ea6\u53d1\u5e03\uff1a\u901a\u8fc7 Canary \u53d1\u5e03\u4e0e\u7070\u5ea6 URL\uff08\u7248\u672c\u5316\uff09\u5148\u884c\u9a8c\u8bc1\u66f4\u65b0\uff0c\u518d\u6279\u91cf\u5207\u6362\u3002<\/li>\n<\/ul>\n<h2>\u6210\u672c\u3001\u6027\u80fd\u4e0e\u5408\u89c4\u6743\u8861<\/h2>\n<p>\u4e0d\u540c\u7b56\u7565\u5728\u6210\u672c\u548c\u6027\u80fd\u4e0a\u5b58\u5728\u660e\u663e\u53d6\u820d\uff1a<\/p>\n<ul>\n<li>\u957f\u671f\u4f7f\u7528\u957fTTL+\u7248\u672c\u5316\u80fd\u663e\u8457\u51cf\u5c11\u5e26\u5bbd\u6210\u672c\u4e0e\u8fb9\u7f18\u8bf7\u6c42\uff1b\u4f46\u9700\u8981\u6784\u5efa\u81ea\u52a8\u5316\u90e8\u7f72\u94fe\u4ee5\u7ef4\u62a4\u7248\u672c\u5316\u7b56\u7565\u3002<\/li>\n<li>\u9891\u7e41 purge \u4f1a\u589e\u52a0API\u8c03\u7528\u4e0e\u56de\u6e90\u8bf7\u6c42\uff0c\u53ef\u80fd\u4ea7\u751f\u989d\u5916\u8d39\u7528\u6216\u89e6\u53d1\u901f\u7387\u9650\u5236\uff0c\u5c24\u5176\u5728\u8de8\u533a\u57df\uff08\u5982\u7f8e\u56fd\u670d\u52a1\u5668\u4e0e\u9999\u6e2f\u670d\u52a1\u5668\u4e4b\u95f4\uff09\u6e05\u7406\u65f6\u8981\u6ce8\u610f\u3002<\/li>\n<li>\u4f01\u4e1a\u5728\u9009\u62e9\u6d77\u5916\u670d\u52a1\u5668\u6216\u591a\u533a\u57df\u90e8\u7f72\uff08\u7f8e\u56fdVPS\u3001\u9999\u6e2fVPS\u7b49\uff09\u65f6\uff0c\u5e94\u7efc\u5408\u8003\u8651\u5408\u89c4\u4e0e\u6570\u636e\u4e3b\u6743\u95ee\u9898\uff0c\u786e\u4fdd\u7f13\u5b58\u7b56\u7565\u4e0e\u6cd5\u5f8b\u5408\u89c4\u4e00\u81f4\u3002<\/li>\n<\/ul>\n<h2>\u9009\u8d2d\u4e0e\u90e8\u7f72\u5efa\u8bae\uff08\u4e00\u7ebf\u6e05\u5355\uff09<\/h2>\n<ul>\n<li>\u5982\u679c\u4e3b\u8981\u7528\u6237\u96c6\u4e2d\u5728\u9999\u6e2f\/\u4e1c\u4e9a\uff1a\u4f18\u5148\u9009\u5177\u5907\u672c\u5730POP\u548c\u4f4e\u5ef6\u8fdf\u56de\u6e90\u7684\u63d0\u4f9b\u5546\uff08\u4f8b\u5982\u5728\u9999\u6e2f\u6216\u65b0\u52a0\u5761\u6709\u8282\u70b9\u7684CDN\uff09\uff0c\u5e76\u914d\u5408\u9999\u6e2f\u670d\u52a1\u5668\u6216\u9999\u6e2fVPS \u90e8\u7f72\u6e90\u7ad9\u3002<\/li>\n<li>\u5982\u679c\u6709\u8de8\u592a\u5e73\u6d0b\u6d41\u91cf\uff1a\u5728\u7f8e\u56fd\u90e8\u7f72\u6e90\u7ad9\u6216\u4f7f\u7528\u7f8e\u56fd\u670d\u52a1\u5668\/\u7f8e\u56fdVPS \u53ef\u964d\u4f4e\u8de8\u6d0b\u56de\u6e90\u5ef6\u8fdf\uff0c\u540c\u65f6\u5728\u8fb9\u7f18\u505a\u533a\u57df\u5206\u53d1\u3002<\/li>\n<li>\u5bf9\u9891\u7e41\u53d8\u66f4\u7684\u4e1a\u52a1\uff1a\u4f18\u5148\u652f\u6301 surrogate-key\u3001\u7ec6\u7c92\u5ea6API purge \u4e0e\u8f6f\u5237\u65b0\u80fd\u529b\u7684CDN\uff1b\u540c\u65f6\u91c7\u7528\u7248\u672c\u5316\u51cf\u5c11\u5f3a\u5236\u6e05\u7406\u9891\u6b21\u3002<\/li>\n<li>\u5e0c\u671b\u6210\u672c\u6700\u4f18\u5316\uff1a\u4f7f\u7528\u957fTTL + \u7248\u672c\u5316\u4e3a\u4e3b\uff0c\u7ed3\u5408\u6761\u4ef6\u56de\u6e90\u964d\u4f4e\u5e26\u5bbd\u5f00\u9500\u3002<\/li>\n<li>\u5bf9\u4e8e\u5e0c\u671b\u5feb\u901f\u4e0a\u7ebf\u548c\u7b80\u5355\u8fd0\u7ef4\u7684\u56e2\u961f\uff1a\u9009\u62e9\u63d0\u4f9b\u6e05\u6670API\u3001\u826f\u597d\u6587\u6863\u4e0e\u63a7\u5236\u9762\u677f\u7684CDN\u670d\u52a1\uff0c\u5e76\u914d\u5408\u7a33\u5b9a\u7684\u57df\u540d\u6ce8\u518c\u4e0eDNS\u670d\u52a1\uff0c\u51cf\u5c11\u57df\u540d\u53d8\u66f4\u5e26\u6765\u7684\u7f13\u5b58\u95ee\u9898\u3002<\/li>\n<\/ul>\n<p>\u90e8\u7f72\u7f13\u5b58\u7b56\u7565\u65f6\uff0c\u8981\u628a\u63e1\u201c\u6027\u80fd\u4f18\u5148\u3001\u6570\u636e\u4e00\u81f4\u6027\u6309\u9700\u201d\u7684\u539f\u5219\u3002\u9759\u6001\u4e0e\u65e0\u6cd5\u5bb9\u5fcd\u8fc7\u671f\u7684\u91cd\u8981\u9875\u9762\u91c7\u53d6\u4e0d\u540c\u7b56\u7565\uff0c\u5408\u7406\u62c6\u5206\u540e\u7aef\u4e0e\u8fb9\u7f18\u804c\u8d23\u3002<\/p>\n<h2>\u603b\u7ed3\u4e0e\u843d\u5730\u5efa\u8bae<\/h2>\n<p>CDN\u7f13\u5b58\u5237\u65b0\u4e0d\u662f\u5355\u4e00\u6280\u672f\u80fd\u8986\u76d6\u7684\u9700\u6c42\u96c6\u5408\uff0c\u800c\u662f\u9700\u8981\u7ed3\u5408\u4e1a\u52a1\u7279\u6027\u3001\u5730\u57df\u5206\u5e03\u4e0e\u8fd0\u7ef4\u80fd\u529b\u6765\u8bbe\u8ba1\u7684\u7efc\u5408\u65b9\u6848\u3002\u4e00\u822c\u63a8\u8350\u7684\u5b9e\u8df5\u8def\u5f84\uff1a<\/p>\n<ul>\n<li>\u4e3a\u9759\u6001\u8d44\u6e90\u91c7\u7528<strong>\u7248\u672c\u5316 + \u957fTTL<\/strong>\uff1b<\/li>\n<li>\u5bf9\u5fc5\u987b\u5b9e\u65f6\u4e0b\u7ebf\u7684\u5185\u5bb9\u4f7f\u7528<strong>\u4e3b\u52a8 Purge\uff08\u914d\u5408 surrogate-key\uff09<\/strong>\uff0c\u5e76\u901a\u8fc7\u5206\u6279\u6e05\u7406\u4e0e Origin Shield \u964d\u4f4e\u51b2\u51fb\uff1b<\/li>\n<li>\u5bf9\u9ad8\u53ef\u7528\u573a\u666f\u5f00\u542f<strong>stale-while-revalidate \/ stale-if-error<\/strong>\u4ee5\u4fdd\u8bc1\u7528\u6237\u4f53\u9a8c\uff1b<\/li>\n<li>\u5c3d\u91cf\u5229\u7528\u6761\u4ef6\u8bf7\u6c42\uff08ETag \/ Last-Modified\uff09\u51cf\u5c0f\u56de\u6e90\u6d41\u91cf\uff1b<\/li>\n<li>\u5728\u591a\u533a\u57df\u90e8\u7f72\uff08\u9999\u6e2f\u3001\u7f8e\u56fd\u3001\u65e5\u672c\u3001\u97e9\u56fd\u3001\u65b0\u52a0\u5761\u7b49\uff09\u65f6\uff0c\u7ed3\u5408\u672c\u5730\u5316\u8282\u70b9\u4e0e\u533a\u57df\u6e90\u7ad9\u4f18\u5316\u5ef6\u8fdf\u4e0e\u6210\u672c\u3002<\/li>\n<\/ul>\n<p>\u5982\u679c\u4f60\u6b63\u5728\u8bc4\u4f30\u6258\u7ba1\u6216\u8fc1\u79fb\u9009\u9879\uff0c\u53ef\u4ee5\u53c2\u8003\u6211\u4eec\u5728 Server.HK \u7684\u670d\u52a1\uff1a\u4e86\u89e3\u66f4\u591a\u5173\u4e8e <a href=\"https:\/\/server.hk\/server.php\" target=\"_blank\" rel=\"noopener\">\u9999\u6e2f\u670d\u52a1\u5668<\/a> \u4e0e\u591a\u5730\u57df\u90e8\u7f72\u7684\u65b9\u6848\uff0c\u6216\u8bbf\u95ee\u4e3b\u9875\u83b7\u53d6\u5173\u4e8e <a href=\"https:\/\/server.hk\/\" target=\"_blank\" rel=\"noopener\">\u9999\u6e2f\u670d\u52a1\u5668<\/a>\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u3001\u9999\u6e2fVPS\u3001\u7f8e\u56fdVPS 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