Skip to content

Conversation

@RebeccaTamachiro
Copy link
Contributor

Summary

PCX-13571

@github-actions github-actions bot added November 2025 product:dns Issues or PRs related to DNS size/xs labels Nov 4, 2025
@github-actions
Copy link
Contributor

github-actions bot commented Nov 4, 2025

This pull request requires reviews from CODEOWNERS as it changes files that match the following patterns:

Pattern Owners
/public/__redirects @cloudflare/pcx-content-engineering, @cloudflare/pcx-technical-writing, @kodster28
/src/content/docs/dns/ @RebeccaTamachiro, @cloudflare/pcx-technical-writing
/src/content/docs/registrar/ @dcpena, @cloudflare/pcx-technical-writing

@RebeccaTamachiro RebeccaTamachiro changed the title [DNS] DNS nameserver consistency [DNS] Nameserver assignment consistency Nov 4, 2025
@github-actions
Copy link
Contributor

github-actions bot commented Nov 4, 2025


The level of consistency you can expect when adding new zones depends on the nameserver type configured.

For [standard nameservers](/dns/nameservers/#standard-nameservers), since a conflict can be caused by anyone adding the same zone to any other Cloudflare account, the likelihood of your new zone being assigned different nameserver names than your previously existing ones is way higher.
Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

We could add a note that this can be prevented by placing a zone hold on your zone, if it's active already: https://developers.cloudflare.com/fundamentals/account/account-security/zone-holds/


For [standard nameservers](/dns/nameservers/#standard-nameservers), since a conflict can be caused by anyone adding the same zone to any other Cloudflare account, the likelihood of your new zone being assigned different nameserver names than your previously existing ones is way higher.

For [account custom nameservers](/dns/nameservers/custom-nameservers/account-custom-nameservers/), [tenant custom nameservers](/dns/nameservers/custom-nameservers/tenant-custom-nameservers/), and [Foundation DNS advanced nameservers](/dns/foundation-dns/advanced-nameservers/#nameservers-hosting-and-assignment), the only conflict would be between a parent and a child zone, which makes consistent assignment across new zones more likely.
Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

With Foundation DNS advanced nameservers, I could have the same conflict if someone else signs up the same zone name in their account, BUT since advanced nameservers is an ENT-only feature the likelihood is significantly smaller.

For account custom nameserver, your statement is correct, since I cannot have two zones with the same name twice in the same account, meaning the only conflict indeed could be between parent and child (or deeper relation).

For tenant custom nameserver, however, there could be a conflict between two zones with the same name in two different accounts, if both accounts belong to the same tenants. But again, the likelihood is very small that this would happen.

@github-actions
Copy link
Contributor

github-actions bot commented Nov 7, 2025

This PR requires additional review attention because it affects the following areas:

Redirects

This PR changes current filenames or deletes current files. Make sure you have redirects set up to cover the following paths:

  • /dns/zone-setups/reference/nameserver-assignment/

@RebeccaTamachiro RebeccaTamachiro marked this pull request as ready for review November 10, 2025 17:37
@RebeccaTamachiro RebeccaTamachiro enabled auto-merge (squash) November 11, 2025 08:31
@RebeccaTamachiro RebeccaTamachiro merged commit a72c5f7 into production Nov 11, 2025
8 checks passed
@RebeccaTamachiro RebeccaTamachiro deleted the rebecca/dns-nameserver-consistency branch November 11, 2025 08:44
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

November 2025 product:dns Issues or PRs related to DNS size/xs

Projects

None yet

Development

Successfully merging this pull request may close these issues.

3 participants