This section that includes the main content of the page lacks a role attribute (i.e. role="main") or a semantic element (i.e. <main>) indicating this:


Main content

This is the main content of the page. It is not grouped with a role attribute or a semantic element. Rather, it is nested with a plain div element.

Note: Hard to automatically test/detect. Requires a human tester or AI to determine which elements require role attributes (and if these role attributes are appropriate).