Practical setup, management and troubleshooting guides for Cloudflare DNS.

Articles

Changing the hosting origin behind an existing Cloudflare proxy

You can move a website to another hosting origin while keeping Cloudflare’s proxied public...

Checking whether Cloudflare is active for a hostname

A domain can use Cloudflare DNS while some hostnames remain DNS-only. CDN caching and most...

Connecting a hosted domain to Cloudflare without breaking email

Cloudflare can become the authoritative DNS provider and proxy eligible web traffic while the...

Editing a Cloudflare DNS record and verifying authoritative answers

When Cloudflare is authoritative for your domain, edit public DNS in its zone. A matching...

Enabling Cloudflare DNSSEC with the correct registrar DS record

DNSSEC connects your signed Cloudflare zone to a trust record at the registrar. Both parts must...

Exporting a Cloudflare DNS zone before migration

Export the Cloudflare DNS zone before a migration or broad record change. Keep the export with...

Keeping mail and FTP hostnames outside Cloudflare’s web proxy

Cloudflare’s ordinary orange-cloud proxy handles supported web traffic. Mailbox and FTP...

Moving DNS away from Cloudflare and removing a zone

Removing a Cloudflare zone is a DNS and service migration task. Prepare the replacement zone...

Understanding Cloudflare CNAME flattening at the zone apex

CNAME flattening lets Cloudflare resolve a CNAME target and return its final address, including...

Using a wildcard DNS record without overriding explicit hostnames

A wildcard DNS record can answer for otherwise unmatched names, but it does not automatically...