How do I change my nameservers to use Cloudflare's DNS servers?

First, create an account with Cloudflare and add your website. Cloudflare will scan your existing DNS records. Then, Cloudflare will provide you with two or more nameservers (e.g., `dave.ns.cloudflare.com`). Log in to your domain registrar (where you bought your domain) and update the nameserver settings to use the Cloudflare nameservers. It can take up to 48 hours for the changes to propagate.