Error 1001
This error indicates a DNS resolution failure preventing access to the requested domain.
- A web request was sent to a Cloudflare IP address for a non-existent Cloudflare domain.
- An external domain that is not on using Cloudflare has a CNAME record to a domain active on Cloudflare
- The target of the DNS CNAME record does not resolve.
- A CNAME record in your Cloudflare DNS app requires resolution via a DNS provider that is currently offline.
- Always Online is enabled for a Custom Hostname (Cloudflare for SaaS) domain.
A non-Cloudflare domain cannot CNAME to a Cloudflare domain, unless the non-Cloudflare domain is added to a Cloudflare account.
Attempting to directly access DNS records used for Cloudflare CNAME setups also causes error 1001. For example, www.example.com.cdn.cloudflare.net.
Disable Always Online, if using Custom Hostname (Cloudflare for SaaS) domain.
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