HTML checklist

  • Accesskey attribute value must be unique
    • WCAG 2.2 - 2.1.1 Keyboard
  • Active <area> elements must have alternate text
    • WCAG 2.2 - 1.1.1 Non-text Content
  • Elements must only use allowed ARIA attributes
    • WCAG 2.1 - 4.1.1 Parsing
    • WCAG 2.2 - 4.1.2 Name, Role, Value
  • Required ARIA attributes must be provided
    • WCAG 2.2 - 4.1.1 Parsing
    • WCAG 2.2 - 4.1.2 Name, Role, Value
  • Certain ARIA roles must contain particular children
    • WCAG 2.2 - 1.3.1 Info and Relationships
  • Certain ARIA roles must be contained by particular parents
    • WCAG 2.2 - 1.3.1 Info and Relationships
  • ARIA roles used must conform to valid values
    • WCAG 2.2 - 1.3.1 Info and Relationships
    • WCAG 2.1 - 4.1.1 Parsing
    • WCAG 2.2 - 4.1.2 Name, Role, Value
  • ARIA attributes must conform to valid names
    • WCAG 2.1 - 4.1.1 Parsing
  • ARIA attributes must conform to valid values
    • WCAG 2.2 - 1.3.1 Info and Relationships
    • WCAG 2.1 - 4.1.1 Parsing
    • WCAG 2.2 - 4.1.2 Name, Role, Value
  • <blink> elements are deprecated and must not be used
    • WCAG 2.2 - 2.2.2 Pause, Stop, Hide
  • Buttons must have discernible text
    • WCAG 2.2 - 4.1.2 Name, Role, Value
  • Page must have a way to bypass repeated blocks of content
    • WCAG 2.2 - 2.4.1 Bypass Blocks
  • Checkbox inputs with the same name attribute value must be part of a group
  • Text elements must have sufficient color contrast against the background
    • WCAG 2.2 - 1.4.3 Contrast (Minimum)
    • Major issue
  • <dl> elements must only directly contain properly-ordered <dt> and <dd> groups, <script> or <template> elements (Minor)
    • WCAG 2.2 - 1.3.1 Info and Relationships
  • <dt> and <dd> elements must be contained by a <dl>
    • WCAG 2.2 - 1.3.1 Info and Relationships

  • Embedded YouTubeTM video <audio> elements must have a <track> for captions

    Auto-generated YouTube captions are not considered to be valid captions.

    • WCAG 2.2 - 1.2.2 Captions (Prerecorded)
    • Major issue

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  • id attribute value must be unique
    • WCAG 2.2 - 2.4.2 Page titled
  • Headings should be present
    • Major issue
  • Heading structure does not start at one
    • WCAG 2.2 - 1.3.1 Info and Relationships
    • Major issue
  • Headings should not be empty
    • WCAG 2.2 – 2.4.6 Headings and Labels
    • Major issue
  • Frames must have unique title attribute
    • WCAG 2.2 - 2.4.1 Bypass Blocks
  • <html> element must have a lang attribute
    • WCAG 2.2 - 3.1.1
  • Heading structure isn't appropriate, levels should only increase by one
    • Minor issue
  • Images must have alternate text description
    • WCAG 2.2 - 1.1.1 Non-text Content
    • Major issue
  • Text of buttons and links should not be repeated in the image alternative description
    • Major issue
  • Image buttons must have alternate text
    • WCAG 2.2 - 1.1.1 Non-text Content
    • Major issue
  • Form elements must have labels
    • WCAG 2.2 - 1.3.1 Info and Relationships
    • WCAG 2.2 - 3.3.2 Labels or Instructions
    • Major issue
  • Form elements should have a visible label
    • Major issue
  • <html> element must have a valid value for the lang attribute
    • WCAG 2.2 - 3.1.1 Language of Page
    • Minor issue
  • Layout tables must not use data table elements
    • WCAG 2.1 - 1.3.1 Info and Relationships
  • Links must have discernible text
    • WCAG 2.2 - 1.1.1 Non-text Content
    • WCAG 2.2 - 4.1.2 Name, Role, Value
    • Minor issue

  • Links work and aren't broken

    This check is only in Ally for Websites and Web Community Manager (WCM) at this time.

  • <ul> and <ol> must only directly contain <li> content elements
    • WCAG 2.2 - 1.3.1 Info and Relationships
  • <li> elements must be contained in a <ul> or <ol>
    • WCAG 2.2 - 1.3.1 Info and Relationships
  • <marquee> elements are deprecated and must not be used
    • WCAG 2.2 - 2.2.2 Pause, Stop, Hide
  • Timed refresh must not exist
    • WCAG 2.2 - 2.2.1Timing Adjustable
    • WCAG 2.2 - 2.2.4 Interruptions
    • WCAG 2.2 - 3.2.5 Change on Request
  • Zooming and scaling must not be disabled (2x)
    • WCAG 2.2 - 1.4.4 Resize text
  • Zooming and scaling should allow maximum scale of 5
  • <object> elements must have alternate text
    • WCAG 2.2 - 1.1.1 Non-text Content
  • Radio inputs with the same name attribute value must be part of a group
  • Content should be contained in a landmark region
  • scope attribute should be used correctly on tables
  • Server-side image maps must not be used
    • WCAG 2.2 - 2.1.1Keyboard
  • The page should have a skip link as its first link
  • Elements should not have tabindex greater than zero
  • The <caption> element should not contain the same text as the summary attribute
  • Data or header cells should not be used to give caption to a data table
    • WCAG 2.2 - 1.3.1 Info and Relationships
    • Major issue
  • All non-empty <td> elements in a table larger than 3 by 3 must have an associated table header
    • WCAG 2.2 - 1.3.1 Info and Relationships
    • Major issue
  • All cells in a <table> element that use the headers attribute must only refer to other cells of that same table
    • WCAG 2.2 - 1.3.1 Info and Relationships
  • All <th> elements and elements with role=columnheader/rowheader must have data cells they describe
    • WCAG 2.2 - 1.3.1 Info and Relationships
  • Documents must have <title> element to aid in navigation
    • WCAG 2.2 - 2.4.2 Page titled
  • lang attribute must have a valid value
    • WCAG 2.2 - 3.1.2 Language of Parts
    • Minor issue
  • Embedded YouTube <video> elements must have a <track> for captions
    • WCAG 2.2 - 1.2.2 Audio-only and Video-only (Prerecorded)
    • WCAG 2.2 - 1.2.3 Audio Description or Media Alternative (Prerecorded)
    • Major issue
  • <video> elements must have an audio description track
    • WCAG 2.2 - 1.2.5 Audio Description (Prerecorded)
    • Major issue

Image checklist

This includes JPG, JPEG, GIF, PNG, BPM, and TIFF files.

  • The image can induce seizures
    • WCAG 2.2 - 2.3 Seizures
    • Severe issue
  • The image does not have an alternative description
    • WCAG 2.2 - 1.1.1 Non-text Content
    • Major issue
  • The image has text that is not part of the alternative description
    • WCAG 2.2 - 1.4.5 Images of text
    • Minor issue
  • The image has contrast issues
    • WCAG 2.2 - 1.4.3 Contrast (Minimum)
    • WCAG 2.2 - 1.4.6 Contrast (Enhanced)
    • Major issue

PDF checklist

  • The PDF is malformed
    • Severe issue
  • The PDF is encrypted
    • Severe issue
  • The PDF is scanned
    • WCAG 2.2 - 1.4.5 Images of text
    • Severe issue
  • The PDF is untagged
    • WCAG 2.2 - 1.3.1 Info and Relationships o
    • WCAG 2.2 - 1.3.2 Meaningful Sequence
    • Major issue
  • The PDF does not have a language set
    • WCAG 2.2 - 3.1.1 Language of Page
    • Minor issue
  • The PDF does not have the correct language set
    • WCAG 2.2 - 3.1.1 Language of Page
    • Minor issue
  • The PDF has images without alternative descriptions
    • WCAG 2.2 - 1.1.1 Non-text Content
    • Major issue
  • The PDF has contrast issues
    • WCAG 2.2 - 1.4.3 Contrast (Minimum)
    • WCAG 2.2 - 1.4.6 Contrast (Enhanced)
    • Major issue

  • The PDF does not have any headings

    This accessibility check is currently only enforced for PDFs that have a minimum of 3 pages.

    • WCAG 2.2 - 1.3.1 Info and Relationships
    • Major issue
  • The PDF does not have an appropriate heading structure
    • WCAG 2.2 - 1.3.1 Info and Relationships
    • Minor issue
  • The PDF’s heading structure does not start at one
    • WCAG 2.2 - 1.3.1 Info and Relationships
    • Major issue
  • The PDF’s heading structure goes beyond six levels
    • WCAG 2.2 - 1.3.1 Info and Relationships
    • Minor issue
  • The PDF has tables that don't have any headers
    • WCAG 2.2 - 1.3.1 Info and Relationships
    • Major issue
  • The PDF does not have a title
    • WCAG 2.2 – 2.4.2 Page Titled
    • Minor issue

Office document checklist

This includes Microsoft® Word and LibreOffice Writer.

  • The document is malformed
    • Severe issue
  • The document is encrypted
    • Severe issue
  • The document does not have a language set
    • WCAG 2.2 - 3.1.1 Language of Page
    • Minor issue
  • The document does not have the correct language set
    • WCAG 2.2 - 3.1.1 Language of Page
    • Minor issue

  • The document has images without alternative descriptions

    When using the web version of Office 365, ensure that you fill out the "Description" field in the Alternative Text panel.

    • WCAG 2.2 - 1.1.1 Non-text Content
    • Major issue
  • The document has text with insufficient contrast
    • WCAG 2.2 - 1.4.3 Contrast (Minimum)
    • WCAG 2.2 - 1.4.6 Contrast (Enhanced)
    • Major issue

  • The document does not have any headings

    This accessibility check is currently only enforced for Word documents that contain a minimum of 12 paragraphs.

    • WCAG 2.2 - 1.3.1 Info and Relationships
    • Major issue
  • The document does not have an appropriate heading structure
    • WCAG 2.2 - 1.3.1 Info and Relationships
    • Minor issue
  • The document heading structure does not start at one
    • WCAG 2.2 - 1.3.1 Info and Relationships
    • Major issue
  • The document’s heading structure goes beyond six levels
    • WCAG 2.2 - 1.3.1 Info and Relationships
    • Minor issue
  • The document has tables that don't have any headers
    • WCAG 2.2 - 1.3.1 Info and Relationships
    • Major issue

Presentation slide checklist

This includes Microsoft® PowerPoint® and LibreOffice Impress.

  • The presentation is malformed
    • Severe issue
  • The presentation is encrypted
    • Severe issue
  • The presentation does not have a language set
    • WCAG 2.2 - 3.1.1 Language of Page
    • Minor issue
  • The presentation does not have the correct language set
    • WCAG 2.2 - 3.1.1 Language of Page
    • Minor issue
  • The presentation has images without alternative descriptions
    • WCAG 2.2 - 1.1.1 Non-text Content
    • Major issue
  • The presentation has text with insufficient contrast
    • WCAG 2.2 - 1.4.3 Contrast (Minimum)
    • WCAG 2.2 - 1.4.6 Contrast (Enhanced)
    • Major issue

  • The presentation does not have any headings

    This accessibility check enforces a minimum of 1 title for every 7 slides in a PowerPoint document.

    • WCAG 2.2 - 1.3.1 Info and Relationships
    • Major issue
  • The presentation has tables that don't have any headers
    • WCAG 2.2 - 1.3.1 Info and Relationships
    • Major issue