Every .dk domain that delegates its _acme-challenge name to ddcecaf3e5d6c7d81cca8286b5853c3e.cm-verify.adobe.com. Such CNAMEs hand DNS-01 certificate validation to a shared service, so this list shows who issues TLS certificates through it. Data comes from our own scanners, which re-resolve every .dk domain in the zone roughly once a week.