The sidebars varies and depends on your choice of theme. Many WordPress themes support multiple sidebars also known as widget ready areas. Some support a header, single sidebar and footer area’s.

widget ready areawithin wordpess

Widget ready area’s within wordpess

 

Sidebars play an important role in designing the layout of a WordPress website to display content other than the main articles of a website. For example, a short list of recent articles, recent comments, a list of pages, or popular articles on a website can easily be displayed across the entire site.

It can also be used to display advertisements from other websites. Users can drag and drop items into sidebars from Appearance ยป Widgets in the admin panel. Some WordPress themes come with highly configurable options to create dynamic layouts for different sections of a website, which allow users to add their own sidebars from a drag and drop interface.