{"id":209877,"date":"2025-10-24T00:39:56","date_gmt":"2025-10-23T16:39:56","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209877\/"},"modified":"2025-10-24T00:39:57","modified_gmt":"2025-10-23T16:39:57","slug":"cdn-172","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209877\/","title":{"rendered":"\u4e3b\u6d41CDN\u8fb9\u7f18\u8ba1\u7b97\u80fd\u529b\u5bf9\u6bd4\uff1a\u6027\u80fd\u3001\u90e8\u7f72\u4e0e\u5e94\u7528\u573a\u666f\u4e00\u89c8"},"content":{"rendered":"<p>\u5728\u5168\u7403\u4e92\u8054\u7f51\u67b6\u6784\u65e5\u76ca\u8fb9\u7f18\u5316\u7684\u4eca\u5929\uff0cCDN \u5df2\u7ecf\u4e0d\u518d\u53ea\u662f\u9759\u6001\u8d44\u6e90\u7684\u7f13\u5b58\u5c42\u3002\u968f\u7740\u8fb9\u7f18\u8ba1\u7b97\uff08Edge Computing\uff09\u80fd\u529b\u7684\u5f15\u5165\uff0cCDN \u9010\u6e10\u627f\u62c5\u8d77\u5b9e\u65f6\u8ba1\u7b97\u3001\u8bf7\u6c42\u5904\u7406\u3001API 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API\u3002<\/li>\n<li><strong>\u5206\u5e03\u5f0f\u7f13\u5b58\u4e0e\u4e00\u81f4\u6027\u63a7\u5236<\/strong>\uff1a\u652f\u6301\u590d\u6742\u7f13\u5b58\u7b56\u7565\u3001Cache Key \u5b9a\u5236\u3001Stale-while-revalidate\u3001Origin Shield \u7b49\u51cf\u5c11\u56de\u6e90\u9891\u7387\u3002<\/li>\n<li><strong>\u7f51\u7edc\u534f\u8bae\u652f\u6301<\/strong>\uff1a\u652f\u6301 HTTP\/2\u3001HTTP\/3\uff08QUIC\uff09\u4ee5\u964d\u4f4e\u8fde\u63a5\u5efa\u7acb\u5ef6\u8fdf\uff1bAnycast \u8def\u7531\u63d0\u5347\u5168\u5c40\u8bbf\u95ee\u901f\u5ea6\u3002<\/li>\n<li><strong>\u5b89\u5168\u4e0e\u63a5\u5165\u63a7\u5236<\/strong>\uff1a\u8fb9\u7f18\u5c42\u53ef\u4ee5\u6267\u884c\u901f\u7387\u9650\u5236\u3001WAF \u89c4\u5219\u3001Bot \u7ba1\u63a7\u4e0eTLS \u7ec8\u7ed3\u3002<\/li>\n<li><strong>\u6301\u4e45\u5316\u80fd\u529b<\/strong>\uff1a\u90e8\u5206\u5382\u5546\u5f00\u59cb\u63d0\u4f9b\u8fb9\u7f18 KV \u5b58\u50a8\u6216\u5bf9\u8c61\u7f13\u5b58\uff08\u4f8b\u5982 Workers KV\uff09\uff0c\u4ee5\u964d\u4f4e\u8de8\u8282\u70b9\u8bbf\u95ee\u5ef6\u8fdf\u3002<\/li>\n<\/ul>\n<h2>\u4e3b\u6d41\u5382\u5546\u80fd\u529b\u5bf9\u6bd4\uff08\u6838\u5fc3\u7ef4\u5ea6\uff09<\/h2>\n<p>\u4ee5\u4e0b\u4ece\u51e0\u4e2a\u4e3b\u8981\u7ef4\u5ea6\u5bf9 Cloudflare\u3001Fastly\u3001Akamai\u3001AWS CloudFront\/AWS Lambda@Edge\u3001Azure Front Door \u7b49\u8fdb\u884c\u6bd4\u8f83\uff0c\u4fa7\u91cd\u6027\u80fd\u3001\u90e8\u7f72\u4f53\u9a8c\u4e0e\u5f00\u53d1\u8005\u53ef\u7528\u6027\u3002<\/p>\n<h3>\u6267\u884c\u73af\u5883\u4e0e\u8bed\u8a00\u652f\u6301<\/h3>\n<ul>\n<li>Cloudflare Workers\uff1a\u57fa\u4e8e V8 isolates\uff0c\u652f\u6301 JavaScript \/ TypeScript\uff0c\u542f\u52a8\u5feb\u3001\u5e76\u53d1\u9ad8\u3001\u51b7\u542f\u52a8\u51e0\u4e4e\u53ef\u5ffd\u7565\uff0c\u9002\u5408\u9ad8\u5e76\u53d1\u77ed\u65f6\u4efb\u52a1\u3002<\/li>\n<li>Fastly Compute@Edge\uff1a\u57fa\u4e8e WebAssembly\uff08WASM\uff09\uff0c\u652f\u6301\u591a\u8bed\u8a00\uff08Rust\u3001AssemblyScript \u7b49\uff09\uff0c\u6027\u80fd\u5f3a\uff0c\u9002\u5408\u9700\u8981\u66f4\u9ad8 CPU \u6027\u80fd\u4e0e\u4e8c\u8fdb\u5236\u517c\u5bb9\u6027\u7684\u573a\u666f\u3002<\/li>\n<li>Akamai EdgeWorkers\uff1a\u63d0\u4f9b JavaScript \u8fd0\u884c\u73af\u5883\uff0c\u5f3a\u8c03\u4e0e Akamai \u5f3a\u5927\u7684\u5168\u7403 POP \u7ed3\u5408\uff0c\u9002\u5408\u9700\u8981\u5e7f\u6cdb\u5730\u7406\u8986\u76d6\u7684\u4f01\u4e1a\u3002<\/li>\n<li>AWS Lambda@Edge\uff1a\u5141\u8bb8\u5728 CloudFront POP \u6267\u884c Lambda \u51fd\u6570\uff0c\u652f\u6301\u591a\u8bed\u8a00\uff0c\u4f46\u51b7\u542f\u52a8\u4e0e\u6267\u884c\u65f6\u95f4\u9650\u5236\u76f8\u6bd4 Cloudflare \u5feb\u901f\u73af\u5883\u5b58\u5728\u5dee\u5f02\u3002<\/li>\n<\/ul>\n<h3>\u7f51\u7edc\u8986\u76d6\u4e0e\u5ef6\u8fdf<\/h3>\n<ul>\n<li>Akamai \u62e5\u6709\u6700\u5e7f\u6cdb\u7684 POP \u7f51\u7edc\uff0c\u9002\u5408\u5168\u7403\u5206\u5e03\u6781\u5e7f\u7684\u4f01\u4e1a\u7ea7\u7528\u6237\uff08\u5305\u62ec\u4e9a\u592a\u3001\u65e5\u97e9\u3001\u65b0\u52a0\u5761\u8282\u70b9\u8986\u76d6\uff09\u3002<\/li>\n<li>Cloudflare POP \u5206\u5e03\u5747\u8861\uff0c\u9999\u6e2f\u3001\u97e9\u56fd\u3001\u65e5\u672c\u3001\u65b0\u52a0\u5761\u7b49\u4e9a\u6d32\u91cd\u8981\u57ce\u5e02\u5177\u6709\u826f\u597d\u8986\u76d6\uff0c\u4e14 Anycast \u8def\u7531\u4e0e\u81ea\u7814\u7f51\u7edc\u6808\u5728\u5ef6\u8fdf\u65b9\u9762\u8868\u73b0\u7a81\u51fa\u3002<\/li>\n<li>Fastly \u5728\u5317\u7f8e\u4e0e\u6b27\u6d32\u8868\u73b0\u4f18\u5f02\uff0c\u5bf9\u52a8\u6001\u5185\u5bb9\u4e0e\u6d41\u5a92\u4f53\u52a0\u901f\u6709\u4e13\u95e8\u4f18\u5316\u3002<\/li>\n<li>AWS CloudFront \u4e0e Lambda@Edge \u5728\u4e0e AWS \u751f\u6001\uff08\u5982 S3\u3001API Gateway\u3001EC2\u3001\u9999\u6e2fVPS\/\u7f8e\u56fdVPS \u4f5c\u4e3a\u540e\u7aef\uff09\u534f\u540c\u65f6\uff0c\u6574\u4f53\u6027\u80fd\u4e0e\u53ef\u64cd\u4f5c\u6027\u597d\uff0c\u4f46\u8de8\u4e91\u573a\u666f\u9700\u8981\u6ce8\u610f\u51fa\u7ad9\u6d41\u91cf\u4e0e\u56de\u6e90\u5ef6\u8fdf\u3002<\/li>\n<\/ul>\n<h3>\u51b7\u542f\u52a8\u3001\u5e76\u53d1\u4e0e\u8d44\u6e90\u9650\u5236<\/h3>\n<ul>\n<li>Cloudflare Workers \u7684 V8 isolates \u8ba9\u51b7\u542f\u52a8\u65f6\u95f4\u6781\u4f4e\uff0c\u9002\u5408\u9ad8\u5e76\u53d1\u77ed\u4efb\u52a1\u3002<\/li>\n<li>WASM\uff08Fastly\uff09\u5728 CPU \u5bc6\u96c6\u578b\u573a\u666f\u4e0b\u66f4\u6709\u4f18\u52bf\uff0c\u4f46\u6784\u5efa\u4e0e\u8c03\u8bd5\u76f8\u5bf9\u590d\u6742\u3002<\/li>\n<li>AWS Lambda@Edge \u5bf9\u4e8e\u5927\u578b\u6267\u884c\u73af\u5883\u4e0e\u72b6\u6001\u7ba1\u7406\u6709\u66f4\u4e25\u683c\u9650\u5236\uff0c\u51b7\u542f\u52a8\u5bf9\u5ef6\u8fdf\u654f\u611f\u7684 API \u9700\u505a\u9884\u70ed\u6216\u5176\u4ed6\u4f18\u5316\u3002<\/li>\n<\/ul>\n<h3>\u5b58\u50a8\u4e0e\u72b6\u6001\u7ba1\u7406<\/h3>\n<ul>\n<li>Workers KV \/ Durable Objects\uff1aCloudflare \u63d0\u4f9b KV\uff08\u5f31\u4e00\u81f4\uff09\u4e0e Durable Objects\uff08\u7528\u4e8e\u6709\u72b6\u6001\u4f1a\u8bdd\u4e0e\u534f\u8c03\uff09\uff0c\u9002\u5408\u5206\u5e03\u5f0f\u4f1a\u8bdd\u3001\u9650\u6d41\u8ba1\u6570\u5668\u7b49\u3002<\/li>\n<li>Fastly \u7684\u8fb9\u7f18\u5b58\u50a8\u901a\u5e38\u4f9d\u8d56\u7b2c\u4e09\u65b9\u6216 Origin \u914d\u5408\uff0cCompute@Edge \u6b63\u5728\u6269\u5c55\u76f8\u5173\u80fd\u529b\u3002<\/li>\n<li>Akamai \u4e0e AWS \u63d0\u4f9b\u7684\u8fb9\u7f18\u6301\u4e45\u5316\u80fd\u529b\u76f8\u5bf9\u6709\u9650\uff0c\u66f4\u591a\u91c7\u7528 Origin Shield \u4e0e\u56de\u6e90\u7b56\u7565\u4f18\u5316\u3002<\/li>\n<\/ul>\n<h2>\u5178\u578b\u5e94\u7528\u573a\u666f\u4e0e\u6027\u80fd\u8003\u91cf<\/h2>\n<p>\u4e0d\u540c\u7528\u4f8b\u5bf9\u8fb9\u7f18\u80fd\u529b\u7684\u4fa7\u91cd\u70b9\u4e0d\u540c\uff0c\u4e0b\u9762\u7ed9\u51fa\u5e38\u89c1\u573a\u666f\u4e0e\u9009\u578b\u8981\u70b9\u3002<\/p>\n<h3>\u9759\u6001\u8d44\u6e90\u52a0\u901f\u4e0e\u539f\u59cb\u7f13\u5b58<\/h3>\n<ul>\n<li>\u4e3b\u8981\u8003\u91cf\uff1aTTL \u7ba1\u7406\u3001Cache Key \u7b56\u7565\u3001\u7f13\u5b58\u64e6\u9664\uff08Purge\uff09\u5ef6\u8fdf\u3001POP \u8986\u76d6\u8303\u56f4\u3002<\/li>\n<li>\u5efa\u8bae\uff1a\u82e5\u4e3b\u7528\u6237\u5728\u9999\u6e2f\u4e0e\u4e9a\u6d32\u5730\u533a\uff0c\u4f18\u5148\u9009\u62e9\u5728\u9999\u6e2f\u3001\u4e1c\u4eac\u3001\u9996\u5c14\u3001\u65b0\u52a0\u5761\u6709 POP \u7684 CDN\uff0c\u5e76\u7ed3\u5408\u9999\u6e2f\u670d\u52a1\u5668 \u6216 \u9999\u6e2fVPS \u4f5c\u4e3a Origin\uff0c\u4ee5\u4fdd\u8bc1\u6700\u77ed\u56de\u6e90\u65f6\u5ef6\u3002<\/li>\n<\/ul>\n<h3>\u52a8\u6001\u9875\u9762\u6e32\u67d3\u4e0e\u8fb9\u7f18\u51fd\u6570<\/h3>\n<ul>\n<li>\u4e3b\u8981\u8003\u91cf\uff1a\u51fd\u6570\u51b7\u542f\u52a8\u3001\u6267\u884c\u65f6\u95f4\u3001\u5e76\u53d1\u3001\u8bed\u8a00\u652f\u6301\u53ca\u4e0e\u540e\u7aef\uff08\u6bd4\u5982\u7f8e\u56fd\u670d\u52a1\u5668\u3001\u7f8e\u56fdVPS\uff09\u8054\u52a8\u7684\u6027\u80fd\u3002<\/li>\n<li>\u5efa\u8bae\uff1a\u9ad8\u5e76\u53d1\u77ed\u4efb\u52a1\u4f18\u5148 Cloudflare Workers\uff1b\u9700\u8981\u81ea\u5b9a\u4e49\u4e8c\u8fdb\u5236\u6216\u66f4\u590d\u6742\u903b\u8f91\u53ef\u8003\u8651 Fastly Compute@Edge \u6216\u5c06\u90e8\u5206\u4e1a\u52a1\u653e\u5728\u9760\u8fd1\u7528\u6237\u7684\u65e5\u672c\u670d\u52a1\u5668\/\u97e9\u56fd\u670d\u52a1\u5668 \u4e0a\u4f5c\u4e3a\u540e\u7aef\u3002<\/li>\n<\/ul>\n<h3>API 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