DBA (Den Blå Avis) is Denmark's largest online marketplace for buying and selling new and used goods across a wide range of categories. Originally launched as the printed newspaper Den Blå Avis in 1981, the platform went online in 1995 and has since become one of Denmark's most popular marketplaces, attracting millions of users every month.

The website features a variety of items, including second-hand furniture, electronics, vehicles, property, jobs and business equipment, establishing it as a key platform for buying, selling and promoting reuse in Denmark.

https://www.dba.dk/