User Guide

Add a new sub-domain is trivial.
DB backup
You must perform regular backups of your shop, so that in case of a
crash, you can reboot your shop quickly and in the best conditions. The
database contains all the information in your shop. To create database
backups of your shop, you have several solutions. You can use tools such
as phpMyAdmin (reserved for advanced users) or use the tool integrated
into PrestaShop, such as the one available on the "DB Backup" tab
displayed below.