DNS doesn't change your raw download speed, but it does affect how quickly websites start loading (domain resolution time) and can affect access to certain content. Good options: Cloudflare (1.1.1.1) — generally fastest and privacy-focused; Google (8.8.8.8) — reliable and widely used; Quad9 (9.9.9.9) — blocks known malicious domains. Change it in your router's DNS settings or your device's network adapter settings.

DNS不会改变你的原始下载速度，但会影响网页开始加载的速度(域名解析耗时)，也可能影响某些内容的访问。推荐：Cloudflare(1.1.1.1)——普遍最快，注重隐私；Google(8.8.8.8)——稳定、用的人多；Quad9(9.9.9.9)——会拦截已知的恶意域名。在路由器的DNS设置里或设备的网络适配器设置里可以改。