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关于 CDN 前端该懂的一切 about blog HOT 1 OPEN

rottenpen commented on June 12, 2024

关于 CDN 前端该懂的一切

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rottenpen commented on June 12, 2024

补充一下 QA:

公司官网有没有放cdn？

看到 www.xxx.com 的 index.html 文件是从正常域名中请求到的，但其他像 js/css 文件，是通过典型的 cdn 域名中获取的。

简单来说就是 CDN 服务商会分配给用户一个CNAME ，需要在域名解析服务商处将加速域名的DNS解析记录指向CNAME域名，访问请求才能转发到CDN节点上，实现CDN加速。所以说，我们访问 www.xxx.com DNS解析会指向 CDN 的 CNAME，而不是我们中心服务器。而针对其他 api 请求，调度服务会自动分配最佳的回源路径供用户向源服务器获得想到的数据

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