Use WAVE or a Screen Reader to identify all of the landmarks on the page. Use the inspector of your browser or a screen reader to identify the labels of any landmarks (the aria-label or aria-labelledby value, if it exists). All landmarks that do exist must meet the following checks.
The landmark type (banner, navigation, etc.) is consistent with the content inside the landmark.
If the landmark is titled (using aria-label or aria-labelledby), the title needs to be representative of the content.
Note - Do not mark a failure for missing landmarks. That is not flaggable under SC 1.3.1.
As a reminder, landmarks include:
Banner - Site-level content. Content that will typically repeat on all pages like the logo and site name.
Complementary - Content which is supplementary to main content, like most sidebar content
Contentinfo - Site-level content (typically footer content) which typically repeat on all pages. Copyright info or other important links go here.
Form - Any collection of inputs that constitutes a singular form.
Main - The main content of the page. Page-specific content goes here, including the page title.
Navigation - Any collection of links to different pages or different sections of the same page.
Region - Any section of content important enough that a user could want to navigate directly to it. Used only when no other landmark type is relevant.
Search - An attribute of role="search" on a container element.