Not sure how to set up a Netlify subdomain

[luke]

Hi, @Kit_Zeller.

We have more information about the NETLIFY and NETLIFYv6 type DNS records here:

[Support Guide] What are the NETLIFY and NETLIFYv6 type DNS records? How do I delete these records?

Last reviewed by Netlify Support - August, 2023 short answer The DNS record types of NETLIFY and NETLIFYv6 are special “alias” records within Netlify DNS. They will return the IP addresses for the closest CDN nodes based on the IP address of the system making the DNS lookup. dns_api example.com- example.com 400 - link exists, all config must be empty Are you seeing an error like this one? [dns_api 400 - link exists, all config must be empty] This happens when you try to create an A or AAAA …

Please read that support guide above for an in-depth explanation of how these records behave with our service. The three key points there are summarized as:

• These records are locked by default and can be unlocked by our support team.
• These records only connect domain names to IP addresses.
• These records do not control which site the domain name is linked to (if any).

You can delete any of those records now. This only affects existing records. If other records cannot be deleted in the future, please let us know and we’ll unlock those as well.

EDIT:

I also want to thank you for taking the time to let us know that you used certbot and how you configured the DNS to make that successful.

While we appreciate the follow-up it will be particularly helpful for other people searching this community site. Seeing the solution that worked for someone can help other people with similar issues and I’m sure those finding this answer in their searches will appreciate it even more than we do. (This answer of using certbot doesn’t just apply to Netlify DNS either. It works with any DNS service and virtual servers with shell access.)

Thanks again for sharing your solution!