Accessibility

Checks that accesskey values are unique

Checks that ARIA attributes are allowed on their elements

Checks that command elements have accessible names

Checks that dialog elements have accessible names

Ensures document body is not set to aria-hidden

Ensures aria-hidden elements do not contain focusable content

Checks that input fields have accessible names

Checks that interactive elements have accessible names

Checks that meter elements have accessible names

Checks that progressbar elements have accessible names

Checks that elements have required ARIA attributes for their roles

Checks that elements with certain roles have required child roles

Checks that elements with certain roles have required parent roles

Checks that elements with role=‘text’ have no focusable descendants

Checks that toggle fields (checkbox, radio, switch) have accessible names

Checks that tooltip elements have accessible names

Checks that treeitem elements have accessible names

Checks for valid values in ARIA attributes

Checks for valid ARIA attribute names

Checks for valid ARIA role values

Checks that all buttons have accessible names

Checks for color contrast issues in styles and classes

Checks that dt and dd elements are inside a dl

Checks that definition lists contain only dt and dd elements

Checks for deprecated or abstract ARIA roles

Checks that active, focusable elements have unique IDs

Checks that IDs used in ARIA attributes are unique

Checks that heading elements have visible content

Checks for focus indicator styles

Checks that form inputs have associated labels

Checks that iframes and frames have title attributes

Checks that heading levels don’t skip

Checks that the html lang attribute has a valid language code

Checks that lang and xml:lang attributes match on html element

Checks that links with identical text go to the same destination

Checks that input type=‘image’ elements have alt text

Checks that visible label text is part of accessible name

Checks for proper landmark regions (main, nav, footer)

Checks that links in text blocks are visually distinguishable

Checks for descriptive link text

Checks that li elements are inside ul, ol, or menu

Checks that ul and ol elements contain only li elements

Checks for meta refresh redirects that can disorient users

Checks that form fields don’t have multiple labels

Checks that object elements have alternative content

Checks that the page has exactly one main landmark

Detects form inputs that prevent pasting

Checks that image alt text is not redundant with surrounding text

Checks that select elements have accessible names

Checks for bypass mechanisms for keyboard navigation

Checks for appropriate tabindex values

Checks that td headers attribute references valid th ids

Checks that data tables have unique accessible names

Checks that data tables have proper headers

Checks that table headers have associated data cells

Checks for minimum touch target sizing hints

Checks that all lang attributes on the page have valid values

Checks that videos have captions or transcripts

Checks if viewport meta tag disables user zoom