Error 1001
Error 1001 DNS Resolution Error Error
What This Error Means
Error 1001 indicates that Cloudflare could not resolve the origin web server's hostname. This is similar to Error 1016 but often implies a more fundamental issue with the DNS configuration or the validity of the hostname itself.
Common Causes
- The origin server's domain name does not exist.
- DNS records for the origin are invalid or refuse to resolve.
- A CNAME record points to an external domain that is currently down or unresolvable.
- Cloudflare internal DNS lookup failure.
How to Fix It (For Users)
- 1 Wait a few minutes and refresh.
- 2 Notify the site owner.
For Site Owners / Developers
- Check your DNS records in the Cloudflare dashboard.
- Ensure your origin server hostname is spelled correctly and exists.
- If using a CNAME, verify the target domain is active and resolvable.
- Disable 'Orange Cloud' (proxy) temporarily to debug if the origin is reachable directly.
When It Is NOT Your Fault
If the external DNS provider for your origin is experiencing an outage.
Check if this outage affects everyone globally
This error often indicates a wider problem. Use our tool to verify if the site is down for everyone.
Check Website Status →Recommended Tool to Prevent This Error
Fix DNS resolution issues and protect your site from DDoS attacks with Cloudflare.