Partial (CNAME) setup
A partial (CNAME
) setup allows you to use Cloudflare’s reverse proxy while maintaining your primary and authoritative DNS provider.
Use this option to proxy only individual subdomains through Cloudflare’s global edge network when you cannot change your authoritative DNS provider.
How to
Availability
Free | Pro | Business | Enterprise | |
Availability | No | No | Yes | Yes |
Reference
DNS resolution
With a partial zone, Cloudflare resolves DNS records differently than for full zones.
CNAME flattening
A partial (CNAME
) setup requires the proxied hostname to be pointed to Cloudflare via a CNAME
record. Since CNAME
records are not allowed on the zone apex (example.com
), you can only proxy your zone apex to Cloudflare if your authoritative DNS provider supports CNAME
Flattening.
If your authoritative DNS provider does not support CNAME Flattening, redirect its traffic — for example, with an .htaccess
file — to a subdomain proxied to Cloudflare. Alternatively, you can use static IPs or BYOIPs.
DDoS protection
DDoS protection for attacks against DNS infrastructure is only available for domains on full setup. Domains on the partial setup are not using Cloudflare authoritative nameservers.