Every .dk domain that delegates its _acme-challenge name to 7692f339-e602-4aa0-8e4c-43c6dea90b18.certauth.wizkids.dk. 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.