Dataforsyningen is Denmark's platform for distributing free public geographic data, operated by the Danish Agency for Climate Data (Klimadatastyrelsen). It provides topographic maps, the national elevation model, orthophotos, cadastral and address data, and a wide range of services.
As part of Denmark's basic data program, these datasets are free to use, available both as downloads and through extensive WMS/WFS/tile services. Dataforsyningen is the authoritative entry point for Danish national geodata.