i am not quite sure if this is the right place to post this… Please move if it is not!
I want to share a short “How-To” because I had quite a few problems with getting DNS-Challange to work for my domain wich is managed by strato. My Problem was to create those two TXT-Records whithin strato’s DNS-Settings: The solution was to set “_acme-challenge” (without quotationmarks ) as “Prefix” and this rather “random” string as value. This solved my problem with getting TXT-Records to work. Even the “technical-support” at Strato did not managed to figure this out!
Hope this helps in case!