X_Nastavení DNS u domény - DNS CAA record
[dotace.usti-nad-labem.cz] acme: error: 403 :: urn:ietf:params:acme:error:caa :: CAA record for dotace.usti-nad-labem.cz prevents issuance
oni maji v DNS explicitne nastaveny CAA pouze s digicert, viz
$ host -t CAA usti-nad-labem.cz
usti-nad-labem.cz has CAA record 0 issue "digicert.com"