Yes, it is. Usually, a certificate that says, "No record of marriage of this person in this county". Though, there is still a step to apostille and translate it to German for German cities to use it.
https://oberlandesgericht-stuttgart.justiz-bw.de/pb/,Lde/Sta...
- Countries without a link they have no info
- Countries with a link, but are cursive, generally provide the certificate in most cases (this seems to be broken, I see no cursive ones, but the UK is among this group, which one can see when opening the link; but that seems to be the minority).
- All others they seem to suggest need to go through the exemption process.