[aria-hidden="true"] is not present on the document <body>
The page body is not hidden from screen readers.
Active
Background and foreground colors have a sufficient contrast ratio
Text and background colors meet minimum contrast ratios.
Active
Document has a <title> element
The page has a descriptive title visible in browser tabs and search results.
Missing
Heading elements appear in a sequentially-descending order
Page headings follow a logical order without skipping levels.
Active
<html> element has a [lang] attribute
The page declares its language so screen readers use the correct voice.
Active
<html> element has a valid value for its [lang] attribute
The page has a valid language code so screen readers pronounce content correctly.
Active
[user-scalable="no"] is not used in the <meta name="viewport"> element and the [maximum-scale] attribute is not less than 5
The page allows users to zoom in on mobile devices.
Missing
Document has a main landmark
The page has exactly one main content area so screen readers can navigate to it.
Active
Image aspect ratio
Images display at their intended proportions.
Active
Valid doctype
The page has a doctype declaration so browsers render it correctly.
Active
Character encoding
The page declares its character encoding so text displays correctly.