1. Home
  2. Error Message
  3. Cloud Flare
  4. Error 530 / Error 1016: Origin DNS Error – Causes and Fixes

Error 530 / Error 1016: Origin DNS Error – Causes and Fixes

Causes

This error indicates Cloudflare is unable to send requests to your server because its origin IP cannot resolve the A/AAAA or CNAME DNS record requested.

The common causes are :

  • The origin host names (CNAMEs) in your Cloudflare Load Balancer default, region, and fallback pools are unresolvable.
  • A missing DNS A record that mentions the origin IP address.
  • A CNAME record in Cloudflare DNS points to an unresolvable external domain.

Fixes

Step 1: Uses A Fallback Pool

Use a fallback pool configured with an origin IP as a backup in case all other pools are unavailable (1st cause)

Step 2: Verify Cloudflare DNS

Verify that your Cloudflare DNS settings include an A record that points to a valid IP address. You can choose to edit existing A record or create a new one. (2nd Cause)

Step 3: Ensure Target Domain Can Be Resolved

Ensure that the target domain can be resolved by using command line tools as well as third-party tools to check DNS resolution, such as dig and nslookup. (3rd Cause)

  • dig command
    • dig subdomain.example.com
    • dig +trace subdomain.example.com
    • dig subdomain.example.com @1.1.1.1
  • nslookup
    • nslookup subdomain.example.com
      nslookup subdomain.example.com 1.1.1.1
Step 4: Try An Online Services

You can try an online services, such as whatsmydns.net, to check for DNS resolution worldwide. Take note that a response other than a valid IP address (e.g., timeout, SERVFAIL, NXDOMAIN or NOERROR) most likely points to the source of your issue.

Updated on June 29, 2020

Was this article helpful?

Related Articles

Need Help?
Submit a ticket to us and let our professional team assists you

Support Billing Sales
Support
Billing
Sales