<script type="application/ld+json">{"@context":"http://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://www.simcentric.com/tc/"},{"@type":"ListItem","position":2,"name":"如何為美國伺服器選擇海外CDN加速專綫？","item":"https://www.simcentric.com/tc/america-dedicated-server-tc/how-to-choose-overseas-cdn-acceleration-line-for-us-servers/"}]}</script> {"id":20258,"date":"2024-12-03T11:55:17","date_gmt":"2024-12-03T03:55:17","guid":{"rendered":"https:\/\/www.simcentric.com\/uncategorized-tc\/how-to-choose-overseas-cdn-acceleration-line-for-us-servers\/"},"modified":"2024-12-03T11:57:05","modified_gmt":"2024-12-03T03:57:05","slug":"how-to-choose-overseas-cdn-acceleration-line-for-us-servers","status":"publish","type":"post","link":"https:\/\/www.simcentric.com\/tc\/america-dedicated-server-tc\/how-to-choose-overseas-cdn-acceleration-line-for-us-servers\/","title":{"rendered":"\u5982\u4f55\u70ba\u7f8e\u570b\u4f3a\u670d\u5668\u9078\u64c7\u6d77\u5916CDN\u52a0\u901f\u5c08\u7dab\uff1f"},"content":{"rendered":"<p>\u5728\u7576\u4eca\u7684\u6578\u4f4d\u5316\u74b0\u5883\u4e2d\uff0c\u5c0d<a href=\"https:\/\/www.simcentric.com\/tc\/products\/dedicated-server-us\/\" target=\"_blank\" rel=\"noopener\">\u7f8e\u570b\u4f3a\u670d\u5668<\/a>\u9032\u884cCDN\u52a0\u901f\u512a\u5316\u5c0d\u65bc\u9762\u5411\u5168\u7403\u7528\u6236\u7684\u4f01\u696d\u4f86\u8aaa\u8b8a\u5f97\u81f3\u95dc\u91cd\u8981\u3002\u4f3a\u670d\u5668\u79df\u7528\u6548\u80fd\u986f\u8457\u5f71\u97ff\u8457\u7528\u6236\u9ad4\u9a57\u548c\u641c\u5c0b\u5f15\u64ce\u6392\u540d\u3002\u96a8\u8457\u5168\u7403\u7db2\u8def\u67b6\u69cb\u65e5\u76ca\u8907\u96dc\u5316\uff0c\u5c0d\u7ba1\u7406\u7f8e\u570b\u57fa\u790e\u8a2d\u65bd\u7684\u6280\u8853\u5718\u968a\u4f86\u8aaa\uff0c\u9078\u64c7\u6b63\u78ba\u7684<a href=\"https:\/\/www.simcentric.com\/tc\/hong-kong-dedicated-server-tc\/how-to-build-cdn-service-on-hong-kong-high-bandwidth-server\/\" target=\"_blank\" rel=\"noopener\">CDN\u52a0\u901f<\/a>\u89e3\u6c7a\u65b9\u6848\u5df2\u6210\u70ba\u4e00\u500b\u95dc\u9375\u6c7a\u7b56\u3002<\/p>\n<h2><strong>\u7406\u89e3CDN\u52a0\u901f\u67b6\u69cb<\/strong><\/h2>\n<p>CDN\u52a0\u901f\u7dda\u8def\u900f\u904e\u5168\u7403\u6230\u7565\u6027\u4f48\u5c40\u7684\u5206\u6563\u5f0f\u4f3a\u670d\u5668\u7db2\u8def\u904b\u4f5c\u3002\u8207\u50b3\u7d71CDN\u4e0d\u540c\uff0c\u5c08\u7528\u52a0\u901f\u7dda\u8def\u5229\u7528\u79c1\u6709\u7db2\u8def\u7e5e\u904e\u516c\u5171\u7db2\u969b\u7db2\u8def\u7684\u64c1\u585e\u9ede\u3002\u9019\u7a2e\u67b6\u69cb\u986f\u8457\u964d\u4f4e\u4e86\u5ef6\u9072\u548c\u4e1f\u5305\u7387\uff0c\u9019\u5c0d\u8de8\u5927\u6d32\u8cc7\u6599\u50b3\u8f38\u5c24\u70ba\u91cd\u8981\u3002<\/p>\n<p>\u6a19\u6e96CDN\u670d\u52d9\u8207\u52a0\u901f\u7dda\u8def\u7684\u6839\u672c\u5340\u5225\u5728\u65bc\u5176\u7db2\u8def\u67b6\u69cb\u3002\u6a19\u6e96CDN\u4e3b\u8981\u4f9d\u8cf4\u516c\u5171\u7db2\u969b\u7db2\u8def\u57fa\u790e\u8a2d\u65bd\uff0c\u800c\u52a0\u901f\u7dda\u8def\u5247\u5229\u7528\u5c08\u7528\u79c1\u6709\u7db2\u8def\uff0c\u901a\u5e38\u4f7f\u7528\u6d77\u5e95\u96fb\u7e9c\u548c\u79c1\u6709\u9aa8\u5e79\u7db2\u8def\u3002\u9019\u7a2e\u65b9\u5f0f\u78ba\u4fdd\u4e86\u6548\u80fd\u4e0d\u53d7\u516c\u5171\u7db2\u969b\u7db2\u8def\u72c0\u6cc1\u7684\u5f71\u97ff\u3002<\/p>\n<pre><code>\r\n# Basic CDN Route Visualization\r\nOrigin Server (US) -> Private Backbone Network -> Edge Nodes -> End Users\r\n\r\n# Example Latency Comparison\r\nPublic Internet: US -> China = ~250-300ms\r\nCDN Acceleration: US -> China = ~120-150ms\r\n\r\n# Typical Network Path\r\n1. Origin Pull\r\n2. Backbone Transmission\r\n3. Edge Distribution\r\n4. Last Mile Delivery\r\n<\/code><\/pre>\n<h2><strong>CDN\u89e3\u6c7a\u65b9\u6848\u7684\u95dc\u9375\u9078\u64c7\u56e0\u7d20<\/strong><\/h2>\n<p>\u5728\u8a55\u4f30CDN\u52a0\u901f\u9078\u9805\u6642\uff0c\u7db2\u8def\u5de5\u7a0b\u5e2b\u61c9\u95dc\u6ce8\u4ee5\u4e0b\u6280\u8853\u53c3\u6578\u4e26\u8003\u616e\u5176\u5c0d\u5be6\u969b\u6548\u80fd\u7684\u5f71\u97ff\uff1a<\/p>\n<h3>1. \u7bc0\u9ede\u5206\u5e03\u5206\u6790<\/h3>\n<p>CDN\u7684\u6709\u6548\u6027\u5f88\u5927\u7a0b\u5ea6\u4e0a\u53d6\u6c7a\u65bc\u5176\u5b58\u5728\u9ede\uff08PoP\uff09\u7684\u5206\u5e03\u3002\u5c0d\u65bc\u9762\u5411\u4e9e\u6d32\u5e02\u5834\u7684\u7f8e\u570b\u4f3a\u670d\u5668\uff0c\u61c9\u5c0b\u627e\u5728\u4ee5\u4e0b\u4f4d\u7f6e\u8a2d\u6709\u6230\u7565\u7bc0\u9ede\u7684\u4f9b\u61c9\u5546\uff1a<\/p>\n<ul>\n<li>\u4e3b\u8981\u4e9e\u6d32\u7db2\u969b\u7db2\u8def\u4ea4\u63db\u4e2d\u5fc3\uff08\u6771\u4eac\u3001\u9999\u6e2f\u3001\u65b0\u52a0\u5761\uff09<\/li>\n<li>\u4e2d\u570b\u5927\u9678\u4e00\u7dda\u57ce\u5e02\uff08\u5317\u4eac\u3001\u4e0a\u6d77\u3001\u5ee3\u5dde\uff09<\/li>\n<li>\u95dc\u9375\u6b50\u6d32\u4e92\u806f\u4e92\u901a\u9ede\uff08\u6cd5\u862d\u514b\u798f\u3001\u502b\u6566\u3001\u963f\u59c6\u65af\u7279\u4e39\uff09<\/li>\n<li>\u65b0\u8208\u5e02\u5834\u6a1e\u7d10\uff08\u5b5f\u8cb7\u3001\u8056\u4fdd\u7f85\u3001\u96ea\u68a8\uff09<\/li>\n<\/ul>\n<p>\u6700\u512a\u7bc0\u9ede\u5206\u5e03\u61c9\u9075\u5faa\u4ee5\u4e0b\u539f\u5247\uff1a<\/p>\n<ul>\n<li>\u7d42\u7aef\u7528\u6236\u5230\u6700\u8fd1\u908a\u7de3\u7bc0\u9ede\u7684\u6700\u5927\u8ddd\u96e2\uff1a\u5ef6\u9072 < 50ms<\/li>\n<li>\u6bcf\u500b\u4e3b\u8981\u5730\u5340\u90fd\u6709\u5197\u9918\u7bc0\u9ede\u4ee5\u5be6\u73fe\u6545\u969c\u8f49\u79fb<\/li>\n<li>\u8207\u76ee\u6a19\u5e02\u5834\u4e3b\u8981ISP\u76f4\u63a5\u5c0d\u7b49\u4e92\u806f<\/li>\n<li>\u5728\u7db2\u969b\u7db2\u8def\u4ea4\u63db\u9ede\uff08IXPs\uff09\u9644\u8fd1\u9032\u884c\u6230\u7565\u6027\u90e8\u7f72<\/li>\n<\/ul>\n<h3>2. \u7db2\u8def\u54c1\u8cea\u6307\u6a19<\/h3>\n<p>\u4f7f\u7528\u7522\u696d\u6a19\u6e96\u57fa\u6e96\u5be6\u65bd\u4ee5\u4e0b\u95dc\u9375\u6307\u6a19\u76e3\u63a7\uff1a<\/p>\n<pre><code>\r\n# Key Performance Indicators\r\nBandwidth Capacity: >= 10 Gbps per node\r\nPacket Loss Rate: < 0.1%\r\nNetwork Jitter: < 10ms\r\nGlobal Availability: > 99.9%\r\n\r\n# Monitoring Setup Example\r\n$ curl -w \"%{time_total}\\n\" -s -o \/dev\/null https:\/\/your-cdn-endpoint.com\r\n$ mtr --report-wide --show-ips target-node.cdn.com\r\n$ ping -c 100 edge-node.cdn.com | grep 'packet loss'\r\n<\/code><\/pre>\n<p>\u9019\u4e9b\u6307\u6a19\u61c9\u5728\u4e0d\u540c\u5730\u5340\u548c\u6642\u9593\u6bb5\u6301\u7e8c\u76e3\u63a7\uff0c\u4ee5\u78ba\u4fdd\u6548\u80fd\u7684\u4e00\u81f4\u6027\u3002\u61c9\u7279\u5225\u95dc\u6ce8\u76ee\u6a19\u5e02\u5834\u7684\u9ad8\u5cf0\u6d41\u91cf\u6642\u6bb5\u3002<\/p>\n<h2><strong>\u5b89\u5168\u5be6\u65bd\u6307\u5357<\/strong><\/h2>\n<p>\u73fe\u4ee3CDN\u89e3\u6c7a\u65b9\u6848\u5fc5\u9808\u5305\u542b\u5f37\u5927\u7684\u5b89\u5168\u529f\u80fd\u3002\u9664\u4e86\u57fa\u672c\u7684DDoS\u9632\u8b77\u5916\uff0c\u9032\u968e\u5b89\u5168\u5be6\u65bd\u9084\u61c9\u89e3\u6c7a\u65b0\u8208\u5a01\u8105\u548c\u5408\u898f\u8981\u6c42\u3002\u4ee5\u4e0b\u662f\u5168\u9762\u7684\u5b89\u5168\u6846\u67b6\uff1a<\/p>\n<h3>1. \u591a\u5c64\u5b89\u5168\u67b6\u69cb<\/h3>\n<pre><code>\r\n# Security Configuration Template\r\n# NGINX Security Headers\r\nadd_header X-Frame-Options \"SAMEORIGIN\" always;\r\nadd_header X-XSS-Protection \"1; mode=block\" always;\r\nadd_header X-Content-Type-Options \"nosniff\" always;\r\nadd_header Referrer-Policy \"no-referrer-when-downgrade\" always;\r\nadd_header Content-Security-Policy \"default-src 'self' http: https: data: blob: 'unsafe-inline'\" always;\r\n\r\n# SSL Configuration\r\nssl_protocols TLSv1.2 TLSv1.3;\r\nssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256;\r\nssl_prefer_server_ciphers on;\r\nssl_session_cache shared:SSL:10m;\r\nssl_session_timeout 10m;\r\nssl_session_tickets off;\r\n<\/code><\/pre>\n<h3>2. WAF\u898f\u5247\u5be6\u65bd<\/h3>\n<p>\u914d\u7f6eWeb\u61c9\u7528\u7a0b\u5f0f\u9632\u706b\u7246\u898f\u5247\u4ee5\u9632\u79a6\u5e38\u898b\u653b\u64ca\u5411\u91cf\uff1a<\/p>\n<pre><code>\r\n# ModSecurity Rule Example\r\nSecRule REQUEST_HEADERS:User-Agent \"@contains sqlmap\" \\\r\n    \"id:1000,\\\r\n    phase:1,\\\r\n    deny,\\\r\n    status:403,\\\r\n    msg:'SQL Injection Tool Detected'\"\r\n\r\n# Rate Limiting Configuration\r\nlimit_req_zone $binary_remote_addr zone=one:10m rate=1r\/s;\r\nlimit_req zone=one burst=10 nodelay;\r\n<\/code><\/pre>\n<h2><strong>\u6548\u80fd\u512a\u5316\u6280\u8853<\/strong><\/h2>\n<p>\u5be6\u65bd\u4ee5\u4e0b\u9032\u968e\u512a\u5316\u7b56\u7565\u4ee5\u6700\u5927\u5316CDN\u6548\u7387\u4e26\u6e1b\u5c11\u4f86\u6e90\u7ad9\u4f3a\u670d\u5668\u8ca0\u8f09\uff1a<\/p>\n<h3>1. \u52d5\u614b\u5167\u5bb9\u512a\u5316<\/h3>\n<pre><code>\r\n# Varnish Cache Configuration Example\r\nsub vcl_recv {\r\n    # Cache by device type\r\n    if (req.http.User-Agent ~ \"Mobile\") {\r\n        set req.http.X-Device = \"mobile\";\r\n    } else {\r\n        set req.http.X-Device = \"desktop\";\r\n    }\r\n    \r\n    # Custom caching rules\r\n    if (req.url ~ \"\\.(jpg|jpeg|png|gif)$\") {\r\n        unset req.http.Cookie;\r\n        return(hash);\r\n    }\r\n}\r\n\r\n# Edge Logic for Dynamic Content\r\nif (req.url ~ \"\/api\/\") {\r\n    set req.backend_hint = api_backend;\r\n    set req.http.X-Cache-Control = \"no-cache\";\r\n}\r\n<\/code><\/pre>\n<h3>2. \u9032\u968e\u5feb\u53d6\u7b56\u7565<\/h3>\n<p>\u57fa\u65bc\u5167\u5bb9\u985e\u578b\u548c\u7528\u6236\u6a21\u5f0f\u5be6\u65bd\u667a\u6167\u5feb\u53d6\u898f\u5247\uff1a<\/p>\n<pre><code>\r\n# Nginx Advanced Caching Rules\r\nlocation ~* \\.(jpg|jpeg|png|gif|ico|css|js)$ {\r\n    expires 30d;\r\n    add_header Cache-Control \"public, no-transform\";\r\n    proxy_cache_use_stale error timeout http_500 http_502 http_503 http_504;\r\n    proxy_cache_valid 200 302 24h;\r\n    proxy_cache_valid 404 1m;\r\n    proxy_cache_key \"$scheme$request_method$host$request_uri$is_mobile\";\r\n}\r\n\r\n# Browser Cache Configuration\r\nlocation ~* \\.(html|xml)$ {\r\n    expires 1h;\r\n    add_header Cache-Control \"public, must-revalidate, proxy-revalidate\";\r\n}\r\n<\/code><\/pre>\n<h2><strong>\u6210\u672c\u5206\u6790\u548cROI\u8a08\u7b97<\/strong><\/h2>\n<p>\u9032\u884c\u5168\u9762\u7684\u6210\u672c\u6548\u76ca\u5206\u6790\u9700\u8981\u8003\u616e\u591a\u500b\u53ef\u80fd\u986f\u8457\u5f71\u97ff\u7e3d\u6295\u8cc7\u7684\u56e0\u7d20\uff1a<\/p>\n<h3>1. \u7e3d\u64c1\u6709\u6210\u672c\uff08TCO\uff09\u5206\u6790<\/h3>\n<ul>\n<li>\u983b\u5bec\u6210\u672c\uff1a\n<ul>\n<li>95\u767e\u5206\u4f4d\u8a08\u8cbb\u6a21\u578b<\/li>\n<li>\u57fa\u65bc\u627f\u8afe\u7684\u968e\u68af\u5f0f\u5b9a\u50f9<\/li>\n<li>\u5340\u57df\u5dee\u7570\uff08\u4e9e\u592a\u5730\u5340\u901a\u5e38\u8cbb\u7528\u8f03\u9ad8\uff09<\/li>\n<li>\u9ad8\u5cf0\u8207\u975e\u9ad8\u5cf0\u6642\u6bb5\u5b9a\u50f9\u8003\u616e<\/li>\n<\/ul>\n<\/li>\n<li>\u8acb\u6c42\u91cf\u8a08\u8cbb\uff1a\n<ul>\n<li>HTTP\/HTTPS\u8acb\u6c42\u91cf\u5b9a\u50f9<\/li>\n<li>\u5feb\u53d6\u6e05\u9664\u548c\u5931\u6548\u8cbb\u7528<\/li>\n<li>\u52d5\u614b\u5167\u5bb9\u8655\u7406\u8cbb\u7528<\/li>\n<li>API\u8abf\u7528\u8cbb\u7528<\/li>\n<\/ul>\n<\/li>\n<li>\u9644\u52a0\u529f\u80fd\uff1a\n<ul>\n<li>SSL\u6191\u8b49\u7ba1\u7406\u8cbb\u7528<\/li>\n<li>WAF\u9632\u8b77\u8a02\u95b1\u8cbb\u7528<\/li>\n<li>DDoS\u9632\u8b77\u8cbb\u7528\u7b49\u7d1a<\/li>\n<li>\u9032\u968e\u76e3\u63a7\u548c\u5206\u6790\u8cbb\u7528<\/li>\n<li>\u5ba2\u88fd\u5316\u529f\u80fd\u5be6\u65bd\u8cbb\u7528<\/li>\n<\/ul>\n<\/li>\n<li>\u96b1\u85cf\u6210\u672c\u8003\u616e\uff1a\n<ul>\n<li>\u6574\u5408\u548c\u8a2d\u7f6e\u8cbb\u7528<\/li>\n<li>\u6280\u8853\u652f\u63f4\u8a08\u5283\u7b49\u7d1a<\/li>\n<li>\u57f9\u8a13\u548c\u6587\u4ef6\u5b58\u53d6<\/li>\n<li>\u5408\u7d04\u7d42\u6b62\u689d\u6b3e<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>2. ROI\u8003\u91cf<\/h3>\n<ul>\n<li>\u6548\u80fd\u6536\u76ca\uff1a\n<ul>\n<li>\u964d\u4f4e\u8df3\u51fa\u7387<\/li>\n<li>\u63d0\u9ad8\u8f49\u63db\u7387<\/li>\n<li>\u589e\u5f37\u7528\u6236\u53c3\u8207\u5ea6\u6307\u6a19<\/li>\n<li>\u6539\u5584SEO\u6392\u540d<\/li>\n<\/ul>\n<\/li>\n<li>\u71df\u904b\u6536\u76ca\uff1a\n<ul>\n<li>\u4f86\u6e90\u7ad9\u4f3a\u670d\u5668\u8ca0\u8f09\u6e1b\u5c11<\/li>\n<li>\u983b\u5bec\u7bc0\u7701<\/li>\n<li>\u57fa\u790e\u8a2d\u65bd\u64f4\u5c55\u6548\u7387<\/li>\n<li>\u958b\u767c\u5718\u968a\u751f\u7522\u529b\u63d0\u5347<\/li>\n<\/ul>\n<\/li>\n<li>\u696d\u52d9\u5f71\u97ff\uff1a\n<ul>\n<li>\u5168\u7403\u5e02\u5834\u6ef2\u900f\u80fd\u529b<\/li>\n<li>\u5ba2\u6236\u6eff\u610f\u5ea6\u63d0\u5347<\/li>\n<li>\u7af6\u722d\u512a\u52e2\u7372\u53d6<\/li>\n<li>\u54c1\u724c\u8072\u8b7d\u63d0\u5347<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><strong>\u5be6\u65bd\u6700\u4f73\u5be6\u52d9<\/strong><\/h2>\n<p>\u6210\u529f\u7684CDN\u90e8\u7f72\u9700\u8981\u8b39\u614e\u898f\u5283\u548c\u7cfb\u7d71\u57f7\u884c\u3002\u8acb\u9075\u5faa\u4ee5\u4e0b\u7d9c\u5408\u90e8\u7f72\u6846\u67b6\uff1a<\/p>\n<h3>1. \u5be6\u65bd\u524d\u8a55\u4f30<\/h3>\n<pre><code>\r\n# Performance Baseline Testing Script\r\n#!\/bin\/bash\r\n# Run performance tests from multiple locations\r\nfor region in \"asia\" \"europe\" \"americas\"; do\r\n    echo \"Testing from $region\"\r\n    curl -w \"@curl-format.txt\" -o \/dev\/null -s \"https:\/\/your-site.com\"\r\n    traceroute your-site.com\r\n    mtr --report-wide your-site.com\r\ndone\r\n\r\n# Curl Format Template (curl-format.txt)\r\n\\n\r\n    time_namelookup:  %{time_namelookup}s\\n\r\n    time_connect:  %{time_connect}s\\n\r\n    time_appconnect:  %{time_appconnect}s\\n\r\n    time_pretransfer:  %{time_pretransfer}s\\n\r\n    time_redirect:  %{time_redirect}s\\n\r\n    time_starttransfer:  %{time_starttransfer}s\\n\r\n    ----------\\n\r\n    time_total:  %{time_total}s\\n\r\n<\/code><\/pre>\n<h3>2. DNS\u914d\u7f6e\u548c\u6574\u5408<\/h3>\n<p>\u5be6\u65bd\u9069\u7576\u7684DNS\u8a2d\u5b9a\u4ee5\u78ba\u4fdd\u6700\u4f73\u8def\u7531\uff1a<\/p>\n<pre><code>\r\n# Example DNS Configuration\r\n; CDN CNAME Setup\r\nwww.yourdomain.com.   IN  CNAME   cdn.provider.com.\r\n; Geographic DNS routing\r\nasia.yourdomain.com.  IN  CNAME   asia.cdn.provider.com.\r\neu.yourdomain.com.    IN  CNAME   eu.cdn.provider.com.\r\n\r\n# GeoDNS Configuration Example\r\n$TTL 300\r\n@       IN      SOA     ns1.yourdomain.com. admin.yourdomain.com. (\r\n                        2024030301 ; Serial\r\n                        3600       ; Refresh\r\n                        1800       ; Retry\r\n                        604800     ; Expire\r\n                        300 )      ; Minimum TTL\r\n<\/code><\/pre>\n<h2><strong>\u76e3\u63a7\u548c\u6548\u80fd\u512a\u5316<\/strong><\/h2>\n<p>\u5be6\u65bd\u5168\u9762\u7684\u76e3\u63a7\u7cfb\u7d71\u4ee5\u7dad\u6301\u6700\u4f73\u6548\u80fd\uff1a<\/p>\n<h3>1. \u5373\u6642\u76e3\u63a7\u8a2d\u7f6e<\/h3>\n<pre><code>\r\n# Prometheus Monitoring Configuration\r\nglobal:\r\n  scrape_interval: 15s\r\n  evaluation_interval: 15s\r\n\r\nscrape_configs:\r\n  - job_name: 'cdn_metrics'\r\n    static_configs:\r\n      - targets: ['cdn-exporter:9113']\r\n    metrics_path: \/metrics\r\n    scheme: https\r\n    basic_auth:\r\n      username: ${METRICS_USERNAME}\r\n      password: ${METRICS_PASSWORD}\r\n\r\n# Grafana Dashboard Query Example\r\nsum(rate(cdn_bandwidth_bytes{region=\"asia\"}[5m])) by (endpoint)\r\n<\/code><\/pre>\n<h3>2. \u6548\u80fd\u8b66\u5831\u7cfb\u7d71<\/h3>\n<p>\u914d\u7f6e\u95dc\u9375\u6307\u6a19\u7684\u81ea\u52d5\u8b66\u5831\uff1a<\/p>\n<ul>\n<li>\u5ef6\u9072\u95be\u503c\uff1a\u95dc\u9375\u8def\u7531 > 100ms \u6642\u8b66\u5831<\/li>\n<li>\u932f\u8aa4\u7387\uff1a5\u5206\u9418\u5167 > 0.1% \u6642\u901a\u77e5<\/li>\n<li>\u5feb\u53d6\u547d\u4e2d\u7387\uff1a\u975c\u614b\u5167\u5bb9 < 85% \u6642\u8b66\u5831<\/li>\n<li>SSL\u6191\u8b49\u904e\u671f\uff1a\u904e\u671f\u524d30\u5929\u767c\u51fa\u8b66\u544a<\/li>\n<\/ul>\n<h2><strong>CDN\u7b56\u7565\u7684\u672a\u4f86\u898f\u5283<\/strong><\/h2>\n<p>CDN\u9818\u57df\u6b63\u96a8\u8457\u65b0\u6280\u8853\u548c\u5354\u5b9a\u7684\u51fa\u73fe\u800c\u5feb\u901f\u767c\u5c55\u3002\u70ba\u4ee5\u4e0b\u65b0\u8208\u8da8\u52e2\u505a\u597d\u6e96\u5099\uff1a<\/p>\n<h3>1. \u65b0\u4e00\u4ee3\u5354\u5b9a<\/h3>\n<pre><code>\r\n# HTTP\/3 Configuration Example\r\nserver {\r\n    listen 443 quic reuseport;\r\n    listen 443 ssl http2;\r\n    \r\n    http3_max_concurrent_streams 256;\r\n    http3_stream_buffer_size 64k;\r\n    \r\n    add_header Alt-Svc 'h3=\":443\"; ma=86400';\r\n    \r\n    ssl_protocols TLSv1.3;\r\n    ssl_early_data on;\r\n}\r\n<\/code><\/pre>\n<h3>2. \u908a\u7de3\u904b\u7b97\u6574\u5408<\/h3>\n<p>\u70ba\u908a\u7de3\u904b\u7b97\u80fd\u529b\u6e96\u5099\u57fa\u790e\u8a2d\u65bd\uff1a<\/p>\n<pre><code>\r\n# Edge Worker Example\r\naddEventListener('fetch', event => {\r\n    event.respondWith(handleRequest(event.request))\r\n})\r\n\r\nasync function handleRequest(request) {\r\n    const cache = caches.default\r\n    let response = await cache.match(request)\r\n    \r\n    if (!response) {\r\n        response = await fetch(request)\r\n        response = new Response(response.body, {\r\n            headers: {\r\n                'Cache-Control': 'public, max-age=3600',\r\n                'CDN-Cache-Control': 'max-age=86400'\r\n            }\r\n        })\r\n        await cache.put(request, response.clone())\r\n    }\r\n    return response\r\n}\r\n<\/code><\/pre>\n<h2><strong>\u7d50\u8ad6<\/strong><\/h2>\n<p>\u70ba\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u57fa\u790e\u8a2d\u65bd\u9078\u64c7\u548c\u5be6\u65bd\u6b63\u78ba\u7684CDN\u52a0\u901f\u89e3\u6c7a\u65b9\u6848\u9700\u8981\u8b39\u614e\u8003\u616e\u6280\u8853\u898f\u683c\u3001\u7db2\u8def\u67b6\u69cb\u548c\u6548\u80fd\u9700\u6c42\u3002\u900f\u904e\u9075\u5faa\u9019\u4efd\u5168\u9762\u6307\u5357\u4e26\u7dad\u8b77\u5f37\u5927\u7684\u76e3\u63a7\u7cfb\u7d71\uff0c\u4f01\u696d\u53ef\u4ee5\u986f\u8457\u63d0\u5347\u5176\u5168\u7403\u5167\u5bb9\u5206\u767c\u80fd\u529b\uff0c\u540c\u6642\u78ba\u4fdd\u6700\u4f73\u7684\u4f3a\u670d\u5668\u79df\u7528\u6548\u80fd\u3002\u8acb\u8a18\u4f4f\u5b9a\u671f\u5be9\u67e5\u548c\u66f4\u65b0\u60a8\u7684CDN\u7b56\u7565\uff0c\u4ee5\u9069\u61c9\u65b0\u8208\u6280\u8853\u548c\u4e0d\u65b7\u8b8a\u5316\u7684\u696d\u52d9\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u7576\u4eca\u7684\u6578\u4f4d\u5316\u74b0\u5883\u4e2d\uff0c\u5c0d\u7f8e\u570b\u4f3a\u670d\u5668\u9032\u884cCDN\u52a0\u901f\u512a\u5316\u5c0d\u65bc\u9762\u5411\u5168\u7403\u7528\u6236\u7684\u4f01\u696d\u4f86\u8aaa\u8b8a\u5f97\u81f3\u95dc\u91cd\u8981\u3002\u4f3a\u670d\u5668\u79df\u7528\u6548\u80fd\u986f\u8457 [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"https:\/\/www.simcentric.com\/tc\/america-dedicated-server-tc\/how-to-choose-overseas-cdn-acceleration-line-for-us-servers\/\">Read More&#8230;<\/a><\/p>\n","protected":false},"author":3,"featured_media":20246,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4815],"tags":[5180,5181,1892,1669,511],"class_list":["post-20258","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-america-dedicated-server-tc","tag-us-server-optimization-tc","tag-global-cdn-nodes-tc","tag-server-hosting-tc","tag-cdn-acceleration-tc","tag-network-latency-tc"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ 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