MangoMap uses a range of default base maps, sourced from the following third party providers. Here you can find the licencing and attribution information for each of the base maps.
MapQuest Satellite - Imagery provided by MapQuest
MapQuest Street - Data and map information provided by MapQuest
World Shaded Relief - Tiles © Esri — Source: Esri
If you want to add your own custom map attribution information, please see our help documention regarding the Custom Copyright tool.