The front end is the front end of the website. This is what all visitors see when they visit it. The front end, if the standard template is installed, usually looks like this:
The information at the top of the website, the information that doesn't change from page to page, is the site header. Sometimes we call this the header.
In this example, it looks like this:
The information at the bottom of the website, the information that doesn't change from page to page, is the site footer. Sometimes we call this the footer.
In this example, it looks like this:
The information located between the site header and the footer is called the site body. You could call it a content zone.
In this zone, the content changes depending on the page.
Sometimes, on some pages, you might see a certain area in the content zone, located to the left or right, depending on the theme being used.
This is the sidebar, or sidebar for our theme.
The sidebar usually doesn't change from page to page. But if the theme is complex, it might.
For example, it looks like this:
Everything we see on the website is the front end.
If a user logs in, they'll first be taken to their personal account, where they can manage their data.
Authorized users have certain privileges associated with this setting.
