How do I tell if a chart is from MacroMicro or a user?

Please look at the line below the chart title:

• Official chart: displays「MacroMicro.me｜MacroMicro」
• User chart: displays「MacroMicro.me｜(username)」

Official Charts: MacroMicro.me｜MacroMicro

User Charts: MacroMicro.me｜(User Name)