The IONOS DNS API is in beta state, please read [1] on how to get started. PLEASE NOTE: The v2 wildcard certification creation [2] is not yet supported as the IONOS API doesn't allow the creation of multiple TXT records with the same domain name. [1] https://beta.developer.hosting.ionos.de/docs/getstarted [2] https://github.com/acmesh-official/acme.sh/issues/1261