Error code

Cloudflare 1018

CLOUDFLARE1018
Network Error Code· An error code from a CDN, proxy, or network edge service such as Cloudflare.

What it means

Cloudflare could not find a host matching the incoming request.

How to fix it

  1. Verify the domain's nameservers point to Cloudflare and the domain is active in a Cloudflare account.
  2. Check that the Cloudflare account associated with the domain is not suspended or over limit.
  3. Re-add the domain to Cloudflare if it was removed and wait for activation to complete.

Not affiliated with Cloudflare. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.