Every .dk domain that delegates its _acme-challenge name to 7b0eaec3-b72f-47e8-b908-78bac447bfa3.auth.acme-dns.io. 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.