Every .dk domain whose www name is a CNAME to ca-web-prod-tidsreg.salmonmeadow-3995ed2f.swedencentral.azurecontainerapps.io, 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.