Proton VPN

aria-required-children

Ensure elements with an ARIA role that require child roles contain them

aria-required-parent

Ensure elements with an ARIA role that require parent roles are contained by them

aria-valid-attr-value

Ensure all ARIA attributes have valid values

color-contrast

Ensure the contrast between foreground and background colors meets WCAG 2 AA minimum contrast ratio thresholds

listitem

Ensure <li> elements are used semantically

landmark-unique

Ensure landmarks are unique

region

Ensure all page content is contained by landmarks

empty-table-header

Ensure table headers have discernible text