backsite
/ˈbæksaɪt/Definitions
1. noun
A website or online presence that is deliberately positioned or designed to be secondary to a main or primary site, often used for promotional or auxiliary purposes.
“The company set up a backsite for its new product launch, featuring a countdown and exclusive deals.”
2. noun
The rear or back portion of a site, such as a property or a building.
“The backsite of the property had a small garden and a view of the surrounding hills.”