Cloudflare has an excellent DNS service offered free and available to all its plans. When moving your DNS service, you'd notice upon adding your domain name or it's called websites with the "Add a site" button in Cloudflare dashboard, records are automatically drawn or pulled in which enables you to verify if everything is there. For years this particular function has been flawless and it never disappoint. What you need to do is make sure to disable every proxy enabled in each records before finally changing your name servers with your domain name registrar. The switch can happen immediately leaving the function of your registrar's DNS the moment you changed and applied the name servers provided by Cloudflare to finally use its DNS service. Most of the time, services and applications breaks with Cloudflare's proxy, enabled by default, which means they will be down due mostly to your DNS configuration. Not necessarily the services and applications involved as w...