Every .dk domain whose www name is a CNAME to sikg-cfs-prod-fd-main-ep-web-dwbuf9amdrftg2ew.z01.azurefd.net, i.e. the website is hosted on that platform. A target that no longer exists is flagged as dangling. Data comes from our own scanners, which re-resolve every .dk domain in the zone roughly once a week.