To access the Administrative area of Joomla, by default, you would need to access your domain’s URL by adding “/administrator” at the end. In this example, the domain is named domain.com, therefore, the Admin URL should be as follows:
https://domain.com/administrator
Then you will be displayed with the following page:
Type or copy/paste the Admin login credentials that were created during the installation and you will gain access to the Administrative area of your Joomla website. There, you will view the main navigation menu has a few categories. Each of these categories have their sub-categories where their related features are located. With this design, the Administrative interface of Joomla is quite clean, yet intuitive to use.