Deprecated - Fixing Error 1000 - DNS points to prohibited IP

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This tutorial is deprecated in favour of Troubleshooting Cloudflare 1XXX errors · Cloudflare Support docs

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General Information about Error 1000

This tutorial covers Error 1000 - DNS points to prohibited IP, which looks like this:

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This error is most commonly caused due to one or more DNS records in the Cloudflare dashboard pointing to a Cloudflare IP address. It can also be caused if your DNS record(s) reference another reverse proxy. In this tutorial, we will focus on fixing the most common cause, DNS records pointing to Cloudflare IPs. If you see this error, follow the steps below and do not see Cloudflare IPs in your DNS records, please click the Help Center link at the bottom of this tutorial for more detail on the other possible causes.

Resolving Error 1000 if your DNS record(s) point to a Cloudflare IP

How Cloudflare IPs can end up in your DNS records

  • If you move a proxied domain from one Cloudflare account to another, sometimes the proxy addresses are imported by the new account, if you don’t replace this with your actual server IP on setup, it can result in this error.
  • If you mistakenly configure one of your DNS records to point to a Cloudflare IP

How to find the Cloudflare IP in your DNS records

  • Navigate to the DNS App in your Cloudflare dashboard
  • Look at your DNS records and check that the IP address matches the one provided by your hosting provider
  • If you see IP addresses that begin with 104., they are most likely to be the Cloudflare ones, although sometimes this is not the case. You can use whois to see who owns an IP or use an online tool like whois.domaintools.com.

What to do once you have identified the Cloudflare IP

  • You now need to edit (or remove) the DNS records pointing to Cloudflare’s IPs to point to your own server.

This is an example from where a site has been moved from one Cloudflare account to another:

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You can see here that there are three A records and three AAAA records for both the root domain and www, these all point to Cloudflare IPs and therefore need to be removed or edited to point to your server IP.

In general, your hosting provider will give you one IPv4 address (in the format XXX.XXX.XXX.XXX) that goes in an A record, so we should do the following in this case:

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Other Relevant Resources

Relevant Help Center Article:
https://support.cloudflare.com/hc/en-us/articles/360029779472-Troubleshooting-Cloudflare-1XXX-errors#error1000

Tutorial Reference: CT-47

Reviewed: 07/21

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If you would like to provide any feedback on this tutorial, please post in the #Meta category, tag your post #TutorialFeedback and let us know the Tutorial Reference above.

Other great resources on this community include the Community Tips . These address best practices when configuring Cloudflare, how to fix issues you may see, and tools to troubleshoot. Also you can view Expert Tips, great posts on the community from people in the know that may help you with your issue.

We encourage users to check out these great resources and the Cloudflare Support Centre before posting

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