Ipsos’ data measures the total unduplicated number of people who used a brand’s websites and apps in a given month, according to Press Gazette’s data. The BBC was once again the UK’s biggest newsbrand by audience size, followed by The Guardian (13%) and Mail Online (14%). My London was the second-fastest-growing newsbrand in the UK in February. It was followed by Mail Online (24.8 million people, up 7%)