The provider assumes no responsibility for the online contents that are linked through the use of cross-references (links), since the situation in question does not involve in-house contents. The linked sites were checked for illegal contents, and no such contents were discernible when the link was set up. The operators of the linked sites are responsible for their contents. In this regard, the supplier is not subject to any general obligation to monitor or check. However, if a violation of the law becomes known, the respective link will promptly be removed.