Heritage datasets in the NDE Dataset Register by licence: most CC BY 4.0 (1,833 datasets), then CC0 1.0 and CC BY-SA 4.0

Heritage datasets in the NDE Dataset Register by licence, October 2026, in datasets. Total: 3,409; the largest 12 of 14 categories are shown. CC BY 4.0 is 54% of the total. The licence applies to the dataset description (the metadata), not necessarily to the collection items themselves. Variants of the same licence URI (http or https, with or without slash) are counted together.