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为什么一个网站的资源会存在于多个域名中？ #22

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Inchill opened this issue Aug 11, 2022 · 0 comments

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Inchill commented Aug 11, 2022

更方便 CDN 缓存
突破浏览器并发限制
节省 cookie 带宽（涉及用户登录时才会用到 cookie）
节省主域名连接数

域名发散作为网络性能优化手段之一，并不是说越多域名越好，因为 DNS 解析域名也会有开销。而且因为很多网站采用的是 https 协议，需要安装更多的证书，不利于快速部署。

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