Troubleshooting Cloudflare for SaaS
By default, you may issue up to 15 certificates per minute. Only successful submissions (POSTs that return 200) are counted towards your limit. If you exceed your limit, you will be prevented from issuing new certificates for 30 seconds.
If you require a higher rate limit, contact your Customer Success Manager.
Resolution error 1016 (Origin DNS error) when accessing the custom hostname
Cloudflare returns a 1016 error when the custom hostname cannot be routed or proxied.
There are two main causes of error 1016:
- Custom Hostname ownership validation is not complete. To check validation status, run an API call to and check the verification error field:
"verification_errors": ["custom hostname does not CNAME to this zone."].
- Fallback Origin is not . Confirm that you have created a DNS record for the fallback origin and also set the fallback origin.