Ulrich's Web Global DirectorySearch for a journal's name to see details about the journal including whether it is peer reviewed/refereed.
Refereed items are marked with an icon which is a representation of a 'referees shirt'.
Using Ulrichsweb global serials directory:
Choose 'Database by title' in the top navigation bar in MultiSearch
Type Ulrichsweb into the Database search box.
Use the links under View Online to access the database.