Landmarks give structure to your page. It's is also used to navigate and understand a page quickly.
For example:- <header role="banner">
- <nav>
- <main>
- <aside>
- <footer role="contentinfo">
- <form>
- <form role="search">
- <nav role="navigation">
- <main role="main">
- <aside role="complementary">
- <nav aria-label="Main navigation"> or even <nav aria-label="Main">
- <nav aria-label="Cocial media links">
- <aside role="Contact information">
- <aside aria-label="Related posts">
- <section aria-label="In the news">
Test with the Apple VoiceOver roter in Safari or with the Landmarks browers addon for FireFox/CHome/Opera