Cloudflare Error 1000: DNS Points to Prohibited IP
Error 1000 means that the DNS record for the domain resolves to an IP address that Cloudflare considers prohibited. This could be a localhost address (127.0.0.1), a Cloudflare IP address (creating a loop), or an IP that has been blocked due to abuse. Cloudflare prevents proxying to these addresses to avoid infinite loops, local network exploitation, or forwarding to known-malicious infrastructure.
Status
Error 1000: DNS Points to Prohibited IPExample
GET /home HTTP/1.1
Host: www.example.com
User-Agent: Mozilla/5.0
Accept: text/htmlHTTP/1.1 409 Conflict
Server: cloudflare
CF-RAY: 7c9d0e1f2a3b4567-ATL
Content-Type: text/html
<!doctype html>
<html>
<head>
<title>www.example.com | Error 1000</title>
</head>
<body>
<h1>Error 1000: DNS points to prohibited IP</h1>
<p>The DNS entry for this website is pointing to an IP address that Cloudflare does not allow. Please contact the site owner.</p>
</body>
</html>How to Troubleshoot
Check what IP your DNS record points to
Look up the actual A/AAAA record value in Cloudflare and verify it is your origin server IP, not a Cloudflare IP or localhost.
Check DNS RecordsGet your real origin IP from your hosting provider
If you do not know your origin IP, check your hosting control panel or contact your provider. It should be a dedicated or shared hosting IP.
Update the DNS record in Cloudflare
Replace the prohibited IP with your correct origin server IP in the Cloudflare DNS settings.
Common Causes
DNS record points to a Cloudflare IP
highIf your A record points to a Cloudflare IP instead of your origin server IP, it creates an infinite loop. This often happens when someone copies the resolved IP of a proxied record instead of the actual origin IP.
DNS record points to localhost (127.0.0.1 / ::1)
mediumA record set to 127.0.0.1 or ::1 would cause Cloudflare to try to connect to itself, which is blocked.
IP address is banned by Cloudflare
lowThe origin IP is on Cloudflare's blocklist due to abuse reports or policy violations.
Quick Diagnostics
Related Error Codes
DNS Resolution Error
Cloudflare's DNS could not resolve the requested hostname.
DNS Points to Prohibited IP (Restricted)
The DNS record resolves to an IP address that Cloudflare restricts for the current plan or configuration.
Direct IP Access Not Allowed
A visitor tried to access a Cloudflare IP address directly instead of using a domain name.
Frequently Asked Questions
This reference was compiled from official RFCs, protocol specifications, and hands-on troubleshooting experience. AI tools were used primarily for formatting and organizing the content on the page.