--- title: "Content is outside landmark regions (a11y/region)" description: "a11y/region: Content not inside header/nav/main/footer landmarks is easy to miss when navigating by landmarks." canonical: https://void-design.vercel.app/rules/a11y/region lastModified: 2026-09-16 --- # Content is outside landmark regions `a11y/region` · severity **warn** · category Accessibility · detected by `void a11y` and `void audit` ## Why it matters Content not inside header/nav/main/footer landmarks is easy to miss when navigating by landmarks. ## How to fix it Place all visible content inside semantic landmarks. ## References - https://dequeuniversity.com/rules/axe/4.13/region ## More accessibility rules `void a11y` reports 48 rules in this category. WCAG 2.2 AA through axe-core, plus checks axe can't do alone: visible keyboard focus, 24/44px target size on mobile, 320px reflow and disabled zoom. - `html-has-lang` has no lang attribute — [a11y/html-has-lang](https://void-design.vercel.app/rules/a11y/html-has-lang) - `html-lang-valid` is not a valid language tag — [a11y/html-lang-valid](https://void-design.vercel.app/rules/a11y/html-lang-valid) - `document-title` Page has no — [a11y/document-title](https://void-design.vercel.app/rules/a11y/document-title) - `landmark-one-main` Page has no <main> landmark — [a11y/landmark-one-main](https://void-design.vercel.app/rules/a11y/landmark-one-main) - `landmark-unique` Landmarks are not uniquely identifiable — [a11y/landmark-unique](https://void-design.vercel.app/rules/a11y/landmark-unique) - `page-has-heading-one` Page has no level-one heading — [a11y/page-has-heading-one](https://void-design.vercel.app/rules/a11y/page-has-heading-one) - `heading-order` Heading levels skip — [a11y/heading-order](https://void-design.vercel.app/rules/a11y/heading-order) - `empty-heading` Heading is empty — [a11y/empty-heading](https://void-design.vercel.app/rules/a11y/empty-heading) Detected by `void a11y` and `void audit`. Explain it in a terminal: `void rules a11y/region`