Every .dk domain that delegates its _acme-challenge name to b95e8fa1-e02c-434f-a2c2-e88d58cfece6.acme.kb.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.