SAML Metadata Viewer. Used to test the underlying XSLT machinery for as well as to gain insight into Metadata usage across Identity Federations (Entity Categories, MDUI elements, ServiceName, ServiceDescription, OrganizationName, OrgDisplayName, OrgURL, ContactPerson, registrationAuthority, etc.).

See also: REFEDS Metadata Explorer Tool, eduGAIN Entities Database

Contact ACOnet if you [don't] want your aggregate to be exposed here.