{"id":30350,"date":"2026-04-27T08:00:00","date_gmt":"2026-04-27T00:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=30350"},"modified":"2026-04-28T11:06:01","modified_gmt":"2026-04-28T03:06:01","slug":"shared-hosting-cdn-buying-guide","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/guides\/shared-hosting-cdn-buying-guide\/","title":{"rendered":"CDN\u52a0\u901f\u9009\u8d2d\u6307\u5357\uff1a\u628a\u865a\u62df\u4e3b\u673a\u5347\u7ea7\u4e3a\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\u7684\u5173\u952e\u6307\u6807\u4e0e\u9002\u7528\u573a\u666f"},"content":{"rendered":"<p><a 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150-200ms\u3002\u542f\u7528 CDN \u540e\uff0c\u56fe\u7247\u88ab\u7f13\u5b58\u5230\u5317\u7f8e\u8fb9\u7f18\u8282\u70b9\uff0c\u8bbf\u5ba2\u52a0\u8f7d\u56fe\u7247\u7684\u5ef6\u8fdf\u53ef\u4ee5\u964d\u4f4e\u5230 20-40ms\uff0c\u6574\u4f53\u9875\u9762\u52a0\u8f7d\u65f6\u95f4\u7f29\u77ed 40%-60%\u3002<\/p>\n<p><img decoding=\"async\" alt=\"CDN\u7f13\u5b58\u5206\u5c42\u67b6\u6784\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/04\/shared-hosting-cdn-buying-guide-cache-layers.webp\" \/><\/p>\n<p>\u8fd9\u80cc\u540e\u6d89\u53ca\u51e0\u4e2a\u6280\u672f\u73af\u8282\u3002\u9996\u5148\u662f DNS\uff08Domain Name System\uff0c\u57df\u540d\u7cfb\u7edf\uff09\u89e3\u6790\uff0cCDN \u63d0\u4f9b\u5546\u901a\u8fc7\u667a\u80fd DNS \u5c06\u7528\u6237\u8bf7\u6c42\u8def\u7531\u5230\u6700\u8fd1\u7684\u8fb9\u7f18\u8282\u70b9\u3002\u5176\u6b21\u662f SSL\uff08Secure Sockets Layer\uff0c\u5b89\u5168\u4f20\u8f93\u534f\u8bae\uff09\u652f\u6301\uff0c\u786e\u4fdd CDN 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\/><\/p>\n<p>\u5224\u65ad\u65b9\u6cd5\u5f88\u7b80\u5355\uff1a\u8981\u6c42\u4f9b\u5e94\u5546\u63d0\u4f9b\u8282\u70b9\u5730\u56fe\uff0c\u6807\u6ce8\u5177\u4f53\u57ce\u5e02\u548c PoP \u6570\u91cf\u3002\u5982\u679c\u5bf9\u65b9\u53ea\u7ed9\u51fa\u4e00\u4e2a\u603b\u6570\uff0c\u65e0\u6cd5\u8bf4\u660e\u5404\u533a\u57df\u7684\u5206\u5e03\u60c5\u51b5\uff0c\u8fd9\u672c\u8eab\u5c31\u662f\u4e00\u4e2a\u8b66\u793a\u4fe1\u53f7\u3002<\/p>\n<h3>\u4e8c\u3001\u7f13\u5b58\u63a7\u5236\u80fd\u529b<\/h3>\n<p>\u7f13\u5b58\u89c4\u5219\u51b3\u5b9a\u4e86\u54ea\u4e9b\u5185\u5bb9\u88ab\u7f13\u5b58\u3001\u7f13\u5b58\u591a\u4e45\u3001\u4ec0\u4e48\u65f6\u5019\u5931\u6548\u3002\u597d\u7684 CDN \u5e94\u8be5\u652f\u6301\uff1a<\/p>\n<ul>\n<li>\u81ea\u5b9a\u4e49\u7f13\u5b58 TTL\uff08Time To Live\uff0c\u751f\u5b58\u65f6\u95f4\uff09\uff0c\u7cbe\u786e\u5230\u79d2\u7ea7\u522b<\/li>\n<li>\u6309\u6587\u4ef6\u7c7b\u578b\u8bbe\u7f6e\u4e0d\u540c\u7f13\u5b58\u7b56\u7565\uff0c\u6bd4\u5982\u56fe\u7247\u7f13\u5b58 30 \u5929\u3001HTML \u4e0d\u7f13\u5b58<\/li>\n<li>URL \u53c2\u6570\u5ffd\u7565\u6216\u4fdd\u7559\u914d\u7f6e\uff0c\u907f\u514d\u540c\u4e00\u8d44\u6e90\u56e0\u53c2\u6570\u4e0d\u540c\u4ea7\u751f\u591a\u4efd\u7f13\u5b58<\/li>\n<li>\u624b\u52a8\u6e05\u9664\u7f13\u5b58\uff08Purge\uff09\u529f\u80fd\uff0c\u66f4\u65b0\u5185\u5bb9\u540e\u80fd\u5feb\u901f\u751f\u6548<\/li>\n<\/ul>\n<p>\u5982\u679c\u4f60\u7684\u7f51\u7ad9\u4ee5 WordPress \u9a71\u52a8\uff0c\u7f13\u5b58\u89c4\u5219\u7684\u914d\u7f6e\u5c24\u4e3a\u91cd\u8981\u3002WordPress \u751f\u6210\u7684\u9875\u9762 URL \u7ecf\u5e38\u5e26\u6709\u67e5\u8be2\u53c2\u6570\uff0c\u5982\u679c CDN \u4e0d\u80fd\u6b63\u786e\u5904\u7406\u8fd9\u4e9b\u53c2\u6570\uff0c\u53ef\u80fd\u5bfc\u81f4\u7528\u6237\u770b\u5230\u8fc7\u671f\u5185\u5bb9\u3002\u5173\u4e8e WordPress \u6258\u7ba1\u7684\u6ce8\u610f\u4e8b\u9879\uff0c\u53ef\u4ee5\u53c2\u8003<a href=\"https:\/\/cn.hostease.com\/blog\/wordpress\/\">WordPress 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