if your registrar supports it you can give it api access and it will create the txt entry and delete it after as part of the renewal. look up acme.sh and you can see if it supports your registrar.
I didn't think to look for an API solution. Nice one - thanks.
@NotThamesWater started
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if your registrar supports it you can give it api access and it will create the txt entry and delete it after as part of the renewal. look up acme.sh and you can see if it supports your registrar.