Bloomberg provides an authentication certificate in order to gain access to their network, as well as their web services host and port information. The second option (Web Solutions) doesn't seem well-documented, at minimum for those functioning with L (like myself).Ħ Overview of DLWS Introduction Data License Web Services (DLWS) provide a programmatic interface to Bloomberg’s reference data for use in client applications. To my understanding, the SFTP option requires a Bloomberg application ('Demand Builder') in purchase to obtain data. There are usually two choices for requesting data: SFTP and Web Providers.