Examples relate to managing cross-domain information. The examples disclosed herein relate to generating a cross-domain sharing specification that comprises an identifier of a first domain and at least one type of user interaction information that a first user enables for cross-domain sharing. The at least one type of user interaction information may be selected from a plurality of types of user interaction information related to the first domain. The examples relate to obtaining, from the first domain, user interaction information corresponding to the at least one type of user interaction information and storing the user interaction information in the cross-domain sharing specification.