Welcome

• Yes, I've searched for similar issues on GitHub and didn't find any.
• Yes, the DNS provider exposes a public API.
• Yes, I know that the lego maintainers don't have an account in all DNS providers in the world.
• Yes, I'm able to create a pull request and be able to maintain the implementation.
• Yes, I'm able to test an implementation if someone creates a pull request to add the support of this DNS provider.

How do you use lego?

I don't know

Link to the DNS provider

https://www.united-domains.de

Link to the API documentation

https://www.united-domains.de/dns-apidoc/

Additional Notes

There is a IONOS DNS API. It is provided both for IONOS itself and also for the IONOS brand united-domains.

IONOS

• API endpoint: https://api.hosting.ionos.com/dns
• API documentation: https://developer.hosting.ionos.de/docs/dns

Note: Can be activated free of charge in any customer account

united-domains

• API endpoint: https://dnsapi.united-domains.de/dns
• API documentation: https://www.united-domains.de/dns-apidoc/

Note: Needs to be purchased.