[dns-operations] Cloudflare people here ? Problematic records served from a Cloudflare hosted zone.

[Joe Abley]

On 27 Nov 2025, at 13:23, Ondřej Surý <ondrej at sury.org> wrote:

>> Like many other DNS providers of a certain shape, Cloudflare provides various non-standard DNS features that are generally intended to be invisible to the Internet at large, but which achieve certain things that our customers want to do. Sometimes they are not invisible, which means they are protocol violations. Sometimes we find we have particular custonmers who come to rely on the strange behaviour, which makes it more of a challenge to change. But we are working on it; our goal is certainly not to cause unpleasant surprises for others, quite the opposite.
> 
> To clarify - my message was not meant to be point and shame, but to share
> the awareness of the issue and to satisfy the general curiosity of DNS people.

That's totally how I read it, sorry if it sounded like I was somehow irritated!

Problem reports are good. That's how we make our code better.


Joe