- Log in to PrestaShop as the administrator.
- On the top menu bar, click Preferences, and then click SEO & URLs.
- Scroll down to the Set shop URL section.
- In the Shop domain text box, type the new domain name that you want PrestaShop to use.
https://www.a2hosting.com/kb/installable-applications/optimization-and-configuration/prestashop2/changing-the-prestashop-url-settings