{"id":209559,"date":"2025-10-23T16:53:43","date_gmt":"2025-10-23T08:53:43","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209559\/"},"modified":"2025-10-23T16:53:44","modified_gmt":"2025-10-23T08:53:44","slug":"cdn-38","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209559\/","title":{"rendered":"CDN\u7f13\u5b58\u63a7\u5236\u7b56\u7565\u8be6\u89e3\uff1a\u63d0\u5347\u547d\u4e2d\u7387\u4e0e\u4e00\u81f4\u6027\u7684\u5b9e\u6218\u6307\u5357"},"content":{"rendered":"<p>\u5728\u5168\u7403\u5316\u7684\u7f51\u7ad9\u548c\u5e94\u7528\u90e8\u7f72\u4e2d\uff0c\u5408\u7406\u7684 CDN \u7f13\u5b58\u63a7\u5236\u7b56\u7565\u76f4\u63a5\u51b3\u5b9a\u4e86\u8bbf\u95ee\u6027\u80fd\u3001\u7a33\u5b9a\u6027\u4e0e\u5e26\u5bbd\u6210\u672c\u3002\u5bf9\u7ad9\u957f\u3001\u4f01\u4e1a\u548c\u5f00\u53d1\u8005\u6765\u8bf4\uff0c\u65e2\u8981\u63d0\u9ad8\u7f13\u5b58\u547d\u4e2d\u7387\uff0c\u53c8\u8981\u4fdd\u8bc1\u5185\u5bb9\u4e00\u81f4\u6027\uff0c\u662f\u4e00\u9879\u9700\u8981\u7ec6\u81f4\u8bbe\u8ba1\u4e0e\u6301\u7eed\u4f18\u5316\u7684\u5de5\u7a0b\u3002\u672c\u6587\u5c06\u4ece\u539f\u7406\u3001\u5b9e\u6218\u914d\u7f6e\u3001\u5e38\u89c1\u573a\u666f\u3001\u4f18\u52bf\u5bf9\u6bd4\u4e0e\u9009\u8d2d\u5efa\u8bae\u7b49\u65b9\u9762\uff0c\u63d0\u4f9b\u53ef\u64cd\u4f5c\u7684\u6280\u672f\u7ec6\u8282\u4e0e\u6700\u4f73\u5b9e\u8df5\uff0c\u5e2e\u52a9\u4f60\u5728\u9999\u6e2f\u670d\u52a1\u5668\u6216\u7f8e\u56fd\u670d\u52a1\u5668\u7b49\u4e0d\u540c\u8fb9\u7f18\u8282\u70b9\u73af\u5883\u4e2d\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u7f13\u5b58\u7b56\u7565\u3002<\/p>\n<h2>\u7f13\u5b58\u539f\u7406\u4e0e\u5173\u952e\u6982\u5ff5<\/h2>\n<p>\u5728\u7406\u89e3\u7b56\u7565\u524d\uff0c\u5148\u660e\u786e\u51e0\u4e2a\u5173\u952e\u6982\u5ff5\uff1a<\/p>\n<ul>\n<li><strong>Cache Key\uff08\u7f13\u5b58\u952e\uff09<\/strong>\uff1a\u51b3\u5b9a\u7f13\u5b58\u6761\u76ee\u662f\u5426\u53ef\u590d\u7528\u7684\u552f\u4e00\u6807\u8bc6\uff0c\u901a\u5e38\u7531\u8bf7\u6c42\u7684\u534f\u8bae\u3001\u57df\u540d\u3001\u8def\u5f84\u3001\u67e5\u8be2\u5b57\u7b26\u4e32\u3001\u8bf7\u6c42\u5934\uff08\u5982 Host\u3001Accept-Encoding\u3001Cookie\uff09\u7b49\u6784\u6210\u3002<\/li>\n<li><strong>TTL\uff08Time To Live\uff09<\/strong>\uff1a\u7f13\u5b58\u5b58\u6d3b\u65f6\u95f4\uff0c\u901a\u5e38\u7531 Cache-Control: max-age \u6216 Expires \u6307\u5b9a\u3002<\/li>\n<li><strong>\u9a8c\u8bc1\u7f13\u5b58<\/strong>\uff1a\u901a\u8fc7 ETag \/ Last-Modified \u4e0e If-None-Match \/ If-Modified-Since \u5b9e\u73b0\u6761\u4ef6\u8bf7\u6c42\uff0c\u8282\u7701\u5e26\u5bbd\u540c\u65f6\u4fdd\u8bc1\u4e00\u81f4\u6027\u3002<\/li>\n<li><strong>\u8fb9\u7f18\u4e0e\u56de\u6e90<\/strong>\uff1aCDN \u8fb9\u7f18\u8282\u70b9\u4fdd\u5b58\u7f13\u5b58\uff0c\u56de\u6e90\u5230\u6e90\u7ad9\uff08\u5982\u9999\u6e2fVPS\u3001\u7f8e\u56fdVPS \u6216\u6d77\u5916\u670d\u52a1\u5668\uff09\u83b7\u53d6\u672a\u547d\u4e2d\u7684\u5185\u5bb9\u3002<\/li>\n<li><strong>\u4e00\u81f4\u6027\u63a7\u5236<\/strong>\uff1a\u5305\u62ec\u4e3b\u52a8\u5931\u6548\uff08purge\uff09\u3001\u8fc7\u671f\u7b56\u7565\u3001stale-while-revalidate \u4e0e stale-if-error \u7b49\u6307\u4ee4\u3002<\/li>\n<\/ul>\n<h3>Cache-Control \u5e38\u7528\u6307\u4ee4\u89e3\u6790<\/h3>\n<ul>\n<li><strong>public\/private<\/strong>\uff1a\u6807\u8bb0\u54cd\u5e94\u662f\u5426\u5141\u8bb8\u88ab\u5171\u4eab\u7f13\u5b58\uff08public \u53ef\u88ab CDN \u7f13\u5b58\uff0cprivate \u4ec5\u6d4f\u89c8\u5668\u7f13\u5b58\uff09\u3002<\/li>\n<li><strong>max-age<\/strong>\uff1a\u8d44\u6e90\u5728\u7f13\u5b58\u4e2d\u53ef\u5b58\u6d3b\u7684\u79d2\u6570\u3002<\/li>\n<li><strong>s-maxage<\/strong>\uff1a\u4e13\u7528\u4e8e\u5171\u4eab\u7f13\u5b58\uff08\u5982 CDN\uff09\u7684 TTL\uff0c\u4f1a\u8986\u76d6 max-age\u3002<\/li>\n<li><strong>must-revalidate\/no-cache<\/strong>\uff1a\u8981\u6c42\u5728\u8fc7\u671f\u540e\u5fc5\u987b\u5411\u6e90\u7ad9\u6821\u9a8c\u624d\u80fd\u4f7f\u7528\u7f13\u5b58\u3002<\/li>\n<li><strong>stale-while-revalidate<\/strong>\uff1a\u5141\u8bb8\u5728\u540e\u53f0\u5f02\u6b65\u5237\u65b0\u65f6\u7ee7\u7eed\u63d0\u4f9b\u9648\u65e7\u5185\u5bb9\uff0c\u63d0\u9ad8\u547d\u4e2d\u7387\u4e0e\u7528\u6237\u4f53\u9a8c\u3002<\/li>\n<li><strong>stale-if-error<\/strong>\uff1a\u5728\u56de\u6e90\u5931\u8d25\u65f6\u63d0\u4f9b\u9648\u65e7\u5185\u5bb9\uff0c\u63d0\u5347\u53ef\u7528\u6027\u3002<\/li>\n<\/ul>\n<h2>\u63d0\u9ad8\u547d\u4e2d\u7387\u7684\u5b9e\u6218\u6280\u5de7<\/h2>\n<p>\u547d\u4e2d\u7387\u7684\u6838\u5fc3\u5728\u4e8e\u8ba9\u8fb9\u7f18\u8282\u70b9\u7684\u7f13\u5b58\u6761\u76ee\u5728\u66f4\u591a\u8bf7\u6c42\u4e0b\u590d\u7528\u3002\u4e0b\u9762\u662f\u5b9e\u64cd\u6280\u5de7\uff1a<\/p>\n<h3>\u7edf\u4e00 Cache Key\uff0c\u51cf\u5c11\u788e\u7247\u5316<\/h3>\n<ul>\n<li>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cCDN \u53ef\u80fd\u628a\u67e5\u8be2\u5b57\u7b26\u4e32\u3001Cookie \u6216\u67d0\u4e9b\u5934\u90e8\u7eb3\u5165 Cache Key\u3002\u5bf9\u9759\u6001\u8d44\u6e90\u5e94\u5c3d\u91cf\u5ffd\u7565\u65e0\u5173\u7684\u67e5\u8be2\u53c2\u6570\uff08\u901a\u8fc7 CDN \u914d\u7f6e\u5ffd\u7565\u6216\u89c4\u8303\u5316\uff09\uff0c\u5bf9\u52a8\u6001\u63a5\u53e3\u5219\u9700\u9488\u5bf9\u7248\u672c\u53f7\u6216\u7b7e\u540d\u4f5c\u4e3a\u5173\u952e\u5b57\u6bb5\u3002<\/li>\n<li>\u628a\u4e0d\u5f71\u54cd\u5185\u5bb9\u6e32\u67d3\u7684\u8ddf\u8e2a\u53c2\u6570\uff08\u5982 utm_\u3001gclid\uff09\u4f7f\u7528\u91cd\u5199\u6216\u5728\u8fb9\u7f18\u5265\u79bb\uff0c\u786e\u4fdd\u540c\u4e00\u8d44\u6e90\u4e0d\u88ab\u591a\u6b21\u7f13\u5b58\u3002<\/li>\n<\/ul>\n<h3>\u5408\u7406\u8bbe\u7f6e TTL \u4e0e\u5206\u5c42\u7f13\u5b58<\/h3>\n<ul>\n<li>\u5bf9\u9759\u6001\u8d44\u6e90\uff08JS\/CSS\/\u56fe\u7247\uff09\u4f7f\u7528\u8f83\u957f\u7684 max-age\uff08\u5982 7 \u5929\u5230 1 \u5e74\uff09\u5e76\u7ed3\u5408\u5185\u5bb9\u6307\u7eb9\uff08hash\uff09\u505a\u7f13\u5b58\u653e\u884c\uff1b\u5bf9 HTML\u3001API \u4f7f\u7528\u8f83\u77ed TTL\uff08\u51e0\u79d2\u5230\u51e0\u5206\u949f\uff09\u5e76\u8003\u8651\u4f7f\u7528 stale-while-revalidate\u3002<\/li>\n<li>\u542f\u7528 CDN \u7684\u5206\u5c42\u7f13\u5b58\uff08Origin Shield \/ Regional POP\uff09\u53ef\u51cf\u5c11\u56de\u6e90\u538b\u529b\uff0c\u63d0\u9ad8\u547d\u4e2d\u7387\u548c\u4e00\u81f4\u6027\uff0c\u5c24\u5176\u5728\u591a\u5730\u533a\u5206\u53d1\uff08\u9999\u6e2f\u3001\u65e5\u672c\u3001\u97e9\u56fd\u3001\u65b0\u52a0\u5761\u7b49\u8282\u70b9\uff09\u65f6\u663e\u8457\u6709\u6548\u3002<\/li>\n<\/ul>\n<h3>\u4f7f\u7528\u9a8c\u8bc1\u7f13\u5b58\u964d\u4f4e\u4e0d\u5fc5\u8981\u6d41\u91cf<\/h3>\n<p>\u5bf9\u53d8\u5316\u4e0d\u9891\u7e41\u4f46\u4ecd\u9700\u4fdd\u6301\u4e00\u81f4\u6027\u7684\u8d44\u6e90\uff0c\u63a8\u8350\u4f7f\u7528 ETag \u6216 Last-Modified\u3002\u8fb9\u7f18\u8282\u70b9\u5728\u6761\u76ee\u8fc7\u671f\u540e\u53d1\u8d77\u6761\u4ef6\u8bf7\u6c42\uff08If-None-Match\/If-Modified-Since\uff09\uff0c\u82e5\u8fd4\u56de 304 \u5219\u7ee7\u7eed\u4f7f\u7528\u672c\u5730\u7f13\u5b58\uff0c\u4ece\u800c\u8282\u7701\u5e26\u5bbd\u5e76\u4fdd\u6301\u4e00\u81f4\u6027\u3002<\/p>\n<h3>\u5229\u7528 stale-while-revalidate \u4e0e stale-if-error<\/h3>\n<p>\u8fd9\u4e24\u4e2a\u6307\u4ee4\u662f\u63d0\u5347\u611f\u77e5\u53ef\u7528\u6027\u4e0e\u547d\u4e2d\u7387\u7684\u5229\u5668\uff1a\u5728\u5185\u5bb9\u8fc7\u671f\u540e\u5141\u8bb8 CDN \u5728\u56de\u6e90\u5237\u65b0\u671f\u95f4\u7ee7\u7eed\u8fd4\u56de\u65e7\u5185\u5bb9\uff08\u51cf\u5c11\u5ef6\u8fdf\uff09\uff0c\u5e76\u5728\u56de\u6e90\u5f02\u5e38\u65f6\u8fd4\u56de\u9648\u65e7\u5185\u5bb9\u4f5c\u4e3a\u964d\u7ea7\u65b9\u6848\u3002\u9002\u7528\u4e8e\u7528\u6237\u4e0d\u8981\u6c42\u5f3a\u5b9e\u65f6\u4e00\u81f4\u6027\u7684\u754c\u9762\u3002<\/p>\n<h2>\u4fdd\u6301\u4e00\u81f4\u6027\u7684\u7b56\u7565\u4e0e\u4ee3\u4ef7\u6743\u8861<\/h2>\n<p>\u4e00\u81f4\u6027\u901a\u5e38\u4e0e\u53ef\u7528\u6027\u548c\u6027\u80fd\u5b58\u5728\u51b2\u7a81\u3002\u5173\u952e\u662f\u6839\u636e\u4e1a\u52a1\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u7b56\u7565\uff1a<\/p>\n<ul>\n<li><strong>\u5f3a\u4e00\u81f4\u6027\u9700\u6c42<\/strong>\uff08\u5982\u91d1\u878d\u4ea4\u6613\u3001\u5e93\u5b58\uff09\uff1a\u907f\u514d\u957f TTL\uff0c\u542f\u7528 must-revalidate \u6216\u5b8c\u5168\u7ed5\u8fc7 CDN\uff08\u6216\u4ec5\u505a\u9759\u6001\u52a0\u901f\uff09\uff0c\u5e76\u4f7f\u7528\u4e3b\u52a8 purge\/ban \u7b56\u7565\u786e\u4fdd\u4fee\u6539\u5373\u65f6\u751f\u6548\u3002<\/li>\n<li><strong>\u6700\u7ec8\u4e00\u81f4\u6027\u9700\u6c42<\/strong>\uff08\u65b0\u95fb\u3001\u535a\u5ba2\u3001\u5546\u54c1\u5217\u8868\uff09\uff1a\u91c7\u7528\u8f83\u77ed TTL \u6216 stale-while-revalidate\uff0c\u5141\u8bb8\u77ed\u65f6\u95f4\u5dee\u5f02\u4ee5\u6362\u53d6\u66f4\u9ad8\u547d\u4e2d\u7387\u4e0e\u66f4\u4f4e\u5ef6\u8fdf\u3002<\/li>\n<\/ul>\n<h3>\u4e3b\u52a8\u5931\u6548\uff08Purge\/Ban\uff09\u4e0e\u56de\u6eda\u7b56\u7565<\/h3>\n<ul>\n<li>\u63d0\u4f9b\u7ec6\u7c92\u5ea6\u7684 purge API\uff08\u6309 URL\u3001CPattern \u6216\u6807\u7b7e\uff09\u4ee5\u652f\u6301\u7d27\u6025\u66f4\u65b0\uff0c\u540c\u65f6\u8003\u8651\u5e76\u53d1\u5931\u6548\u5bf9\u8fb9\u7f18\u5e26\u5bbd\u4e0e\u56de\u6e90\u538b\u529b\u7684\u5f71\u54cd\u3002<\/li>\n<li>\u4f7f\u7528\u7248\u672c\u5316\u8def\u5f84\uff08\/v2\/\uff09\u6bd4\u9891\u7e41 purge \u66f4\u7a33\u5065\uff0c\u80fd\u51cf\u5c11\u77ac\u95f4\u56de\u6e90\u6f6e\u3002<\/li>\n<\/ul>\n<h2>\u5e38\u89c1\u5e94\u7528\u573a\u666f\u4e0e\u914d\u7f6e\u793a\u4f8b<\/h2>\n<p>\u4e0b\u9762\u7ed9\u51fa\u51e0\u7c7b\u5178\u578b\u573a\u666f\u7684\u5efa\u8bae\u914d\u7f6e\uff1a<\/p>\n<h3>\u9759\u6001\u8d44\u6e90\uff08\u56fe\u7247\u3001JS\u3001CSS\uff09<\/h3>\n<ul>\n<li>Cache-Control: public, max-age=31536000, immutable<\/li>\n<li>\u4f7f\u7528\u6307\u7eb9\u5316\u6587\u4ef6\u540d\uff08content hash\uff09\u505a\u7248\u672c\u63a7\u5236\uff0c\u51cf\u5c11 purge \u9700\u6c42\u3002<\/li>\n<\/ul>\n<h3>\u5e38\u89c4 HTML \u9875\u9762<\/h3>\n<ul>\n<li>Cache-Control: public, max-age=60, stale-while-revalidate=30, stale-if-error=86400<\/li>\n<li>\u5bf9\u4e8e\u767b\u5f55\u6001\u6216\u4e2a\u6027\u5316\u9875\u9762\uff0c\u4f7f\u7528 Cookie \u6216 Authorization \u63a7\u5236\u662f\u5426\u7ed5\u8fc7\u7f13\u5b58\uff0c\u6216\u91c7\u7528 Edge Side Includes\uff08ESI\uff09\u62fc\u63a5\u9759\u6001\u4e0e\u52a8\u6001\u90e8\u5206\u3002<\/li>\n<\/ul>\n<h3>API \u63a5\u53e3<\/h3>\n<ul>\n<li>\u5bf9\u53ef\u7f13\u5b58\u7684 GET \u63a5\u53e3\uff1aCache-Control: public, s-maxage=30, stale-while-revalidate=10<\/li>\n<li>\u5bf9\u5b9e\u65f6\u6027\u8981\u6c42\u9ad8\u7684\u63a5\u53e3\uff1aCache-Control: private, no-cache \u6216\u76f4\u63a5\u7981\u7528 CDN \u7f13\u5b58\u3002<\/li>\n<\/ul>\n<h2>\u6027\u80fd\u76d1\u63a7\u4e0e\u547d\u4e2d\u7387\u4f18\u5316\u6d41\u7a0b<\/h2>\n<p>\u6301\u7eed\u4f18\u5316\u9700\u8981\u6570\u636e\u9a71\u52a8\uff1a<\/p>\n<ul>\n<li>\u76d1\u63a7\u5173\u952e\u6307\u6807\uff1a\u8fb9\u7f18\u547d\u4e2d\u7387\u3001\u56de\u6e90\u6d41\u91cf\u3001\u56de\u6e90\u5ef6\u8fdf\u3001\u9519\u8bef\u7387\u4e0e\u54cd\u5e94\u65f6\u95f4\u3002<\/li>\n<li>\u6309\u57df\u540d\/\u8def\u5f84\/\u5ba2\u6237\u7aef\u5730\u57df\uff08\u9999\u6e2f\u3001\u65e5\u672c\u3001\u7f8e\u56fd\u7b49\uff09\u5206\u89e3\u547d\u4e2d\u7387\uff0c\u8bc6\u522b\u9ad8\u56de\u6e90\u70ed\u70b9\u3002<\/li>\n<li>\u5bf9\u4f4e\u547d\u4e2d\u8def\u5f84\u8fdb\u884c Cache Key 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