When you start using Cloudflare’s nameservers for authoritative DNS, Cloudflare will become your primary DNS provider. This means that your DNS records in Cloudflare need to be accurate for your domain to work properly.
When you added your domain to Cloudflare, Cloudflare automatically scanned for common records and added them to your account’s DNS page.
Since this scan is not guaranteed to find all existing DNS records, you need to review your records, paying special attention to the following record types:
Wait up to 24 hours while your registrar updates your nameservers.
When your domain is Active:
You will receive an email from Cloudflare.
Your domain will have a status of Active on the Websites page of your account.
Online tools such as https://www.whatsmydns.net/Open external link will show your Cloudflare-assigned nameservers (most of these tools use cached query results, so it may take longer for them to show the updated nameservers).
CLI commands will show your Cloudflare-assigned nameservers