+
+
+ applet_alt_exists: <applet> elements must provide an 'alt' attribute and an alternative description
+
+ Violation —
+ An <applet> element does not have an 'alt' attribute that provides a short text alternative Violation —
+ The 'alt' attribute value for an <applet> element duplicates the 'code' attribute Violation —
+ An <applet> element provides alternative text, but does not provide inner content
+
+ img_alt_redundant: The text alternative for an image within a link should not repeat the link text or adjacent link text
+
+ Violation —
+ Link text is repeated in an image 'alt' value within the same link Violation —
+ Link text of previous link is repeated in image 'alt' value of a link Violation —
+ Image 'alt' value within a link is repeated in link text of the link after
+
+ img_alt_valid: Images require an 'alt' attribute with a short text alternative if they convey meaning, or 'alt="" if decorative
+
+ Violation —
+ Image 'alt' attribute value consists only of blank space(s) Violation —
+ The image has neither an alt atttribute nor an ARIA label or title Violation —
+ The image does not have an alt attribute or ARIA label and 'title' attribute value consists only of blank space(s)
+
+ area_alt_exists: <area> elements in an image map must have a text alternative
+
+ Violation —
+ <area> element in an image map has no text alternative
+
+ aria_graphic_labelled: An element with a graphics role must have a non-empty label
+
+ Violation —
+ Element with "{0}" graphics role has no label or an empty label
+
+ aria_img_labelled: An element with "img" role must have a non-empty label
+
+ Violation —
+ Element with "img" role has no label or an empty label
+
+ imagebutton_alt_exists: The <input> element of type "image" should have a text alternative
+
+ Violation —
+ The <input> element of type "image" has no text alternative
+
+ imagemap_alt_exists: An image map and each <area> element in an image map must have text alternative(s)
+
+ Violation —
+ Image map or child <area> has no text alternative
+
+ img_alt_decorative: Image designated as decorative must have 'alt=""
+
+ Violation —
+ Image designated as decorative has non-null 'alt' attribute
+
+ img_alt_null: When the image 'alt' attribute is empty, the 'title' attribute must also be empty
+
+ Violation —
+ The image 'alt' attribute is empty, but the 'title' attribute is not empty
+
+ object_text_exists: <object> element must have a text alternative for the content rendered by the object
+
+ Violation —
+ An <object> element does not have a text alternative
+
+ asciiart_alt_exists: ASCII art must have a text alternative
+
+ Needs review —
+ Verify that ASCII art has a text alternative
+
+ emoticons_alt_exists: Emoticons must have a short text alternative that describes their purpose
+
+ Needs review —
+ Verify that emoticons have a text alternative
+
+ img_alt_misuse: 'alt' attribute value must be a good inline replacement for the image
+
+ Needs review —
+ Verify that the file name serves as a good inline replacement for the image
+
+ img_ismap_misuse: Server-side image map hot-spots must have duplicate text links
+
+ Needs review —
+ Server-side image map hot-spots do not have duplicate text links
+
+ img_longdesc_misuse: The 'longdesc' attribute must reference HTML content
+
+ Needs review —
+ Verify that the file designated by the 'longdesc' attribute contains valid HTML content (file extension not recognized)
+
+ media_alt_exists: Audio or video on the page must have a short text alternative that describes the media content
+
+ Needs review —
+ Filename used as label for embedded audio or video
+
+ style_background_decorative: Images included by using CSS alone must not convey important information
+
+ Needs review —
+ Verify the CSS background image does not convey important information
+
+ style_highcontrast_visible: Windows high contrast mode must be supported when using CSS to include, position or alter non-decorative content
+
+ Needs review —
+ Confirm Windows high contrast mode is supported when using CSS to include, position or alter non-decorative content
+
+ figure_label_exists: A <figure> element must have an associated label
+
+ Recommendation —
+ The <figure> element does not have an associated label
+
+ embed_alt_exists: Provide alternative content for <embed> elements
+
+ Recommendation —
+ Verify that the <embed> element has alternative content
+
+ embed_noembed_exists: <embed> elements should be immediately followed by a non-embedded element
+
+ Recommendation —
+ Verify that the <embed> element is immediately followed by a non-embedded element
+
+ media_alt_brief: Alternative text in 'alt' attribute should be brief (<150 characters)
+
+ Recommendation —
+ Text alternative is more than 150 characters
+
+ noembed_content_exists: <noembed> elements should contain descriptive text
+
+ Recommendation —
+ Add descriptive text to the <noembed> element
+
+ canvas_content_described: The <canvas> element may not be accessible
+
+ Recommendation —
+ Verify accessibility of the <canvas> element
+
+ img_alt_background: Background images that convey important information must have a text alternative that describes the image
+
+ Recommendation —
+ Verify important background image information has a text alternative in system high contrast mode
+
+
1.1.1 Non-text Content [A]
+All non-text content that is presented to the user has a text alternative that serves the equivalent purpose.
+
+ caption_track_exists: A <video> element must have a text alternative for any meaningful audio content
+
+ Needs review —
+ Verify that captions are available for any meaningful audio or provide a caption track for the <video> element
+
+ media_audio_transcribed: Audio information should also be available in text form
+
+ Recommendation —
+ Provide transcripts for audio files
+
+
1.2.1 Audio-only and Video-only (Prerecorded) [A]
+For prerecorded audio-only or video-only media, an alternative provides equivalent information.
+
+ caption_track_exists: A <video> element must have a text alternative for any meaningful audio content
+
+ Needs review —
+ Verify that captions are available for any meaningful audio or provide a caption track for the <video> element
+
+
1.2.2 Captions (Prerecorded) [A]
+Captions are provided for all prerecorded audio content in synchronized media.
+
+ media_track_available: Pre-recorded media should have an audio track that describes visual information
+
+ Recommendation —
+ Verify availability of a user-selectable audio track with description of visual content
+
+
1.2.3 Audio Description or Media Alternative (Prerecorded) [A]
+An alternative for time-based media or audio description of the prerecorded video content is provided for synchronized media.
+
+ caption_track_exists: A <video> element must have a text alternative for any meaningful audio content
+
+ Needs review —
+ Verify that captions are available for any meaningful audio or provide a caption track for the <video> element
+
+ media_live_captioned: Live media (streaming video with audio) should have captions for audio content
+
+ Recommendation —
+ Verify captions are provided for live media (streaming video with audio)
+
+
1.2.4 Captions (Live) [AA]
+Captions are provided for all live audio content in synchronized media.
+
+ media_track_available: Pre-recorded media should have an audio track that describes visual information
+
+ Recommendation —
+ Verify availability of a user-selectable audio track with description of visual content
+
+
1.2.5 Audio Description (Prerecorded) [AA]
+Audio description is provided for all prerecorded video content in synchronized media.
+
+ input_checkboxes_grouped: Related sets of radio buttons or checkboxes should be programmatically grouped
+
+ Violation —
+ {0} input found that has the same name, "{2}" as a {1} input Violation —
+ {0} input is not in the group with another {0} with the name "{1}" Violation —
+ {0} input and others with the name "{1}" are not grouped together Violation —
+ {0} input is in a different group than another {0} with the name "{1}" Needs review —
+ Verify that this ungrouped checkbox input is not related to other checkboxes Needs review —
+ Verify that this un-named, ungrouped checkbox input is not related to other checkboxes
+
+ table_headers_ref_valid: The 'headers' attribute should refer to a valid cell in the same table
+
+ Violation —
+ The 'headers' attribute value "{0}" does not reference a valid 'id' in this document Violation —
+ The 'headers' attribute value "{0}" refers to itself Violation —
+ The 'headers' attribute value "{0}" does not refer to a cell in the same table Violation —
+ The 'headers' attribute value "{0}" does not refer to a cell indicated with <th> or a role of "columnheader" or "rowheader"
+
+ fieldset_label_valid: Groups with nested inputs must have unique accessible name
+
+ Violation —
+ Group/Fieldset does not have an accessible name Violation —
+ Group/Fieldset "{0}" has a duplicate name to another group
+
+ table_scope_valid: Value for 'scope' attribute must be "row", "col", "rowgroup", or "colgroup"
+
+ Violation —
+ Value provided is invalid for the 'scope' attribute Violation —
+ The 'scope' attribute should only be used on a <th> element
+
+ aria_hidden_nontabbable: A hidden element should not contain any tabbable elements
+
+ Violation —
+ Element "{0}" should not be focusable within the subtree of an element with an 'aria-hidden' attribute with value 'true'
+
+ aria_landmark_name_unique: Multiple landmarks should have a unique 'aria-labelledby' or 'aria-label' or be nested in a different parent regions
+
+ Violation —
+ Multiple "{0}" landmarks with the same parent region are not distinguished from one another because they have the same "{1}" label
+
+ form_label_unique: Form controls should have exactly one label
+
+ Violation —
+ Form control has more than one label
+
+ label_ref_valid: The 'for' attribute must reference a non-empty, unique 'id' attribute of an <input> element
+
+ Violation —
+ The value "{0}" of the 'for' attribute is not the 'id' of a valid <input> element
+
+ table_caption_empty: A <caption> element for a <table> element must contain descriptive text
+
+ Violation —
+ The <table> element has an empty <caption> element
+
+ table_caption_nested: The <caption> element must be nested inside the associated <table> element
+
+ Violation —
+ <caption> element is not nested inside a <table> element
+
+ table_headers_exists: Data table must identify headers
+
+ Violation —
+ Table has no headers identified
+
+ table_headers_related: For a complex data table, all <th> and <td> elements must be related via 'header' or 'scope' attributes
+
+ Violation —
+ Complex table does not have headers for each cell properly defined with 'header' or 'scope'
+
+ table_structure_misuse: Table elements with 'role="presentation" or 'role="none" should not have structural elements or attributes
+
+ Violation —
+ The <{0}> element with "presentation" role or "none" role has structural element(s) and/or attribute(s) '{1}'
+
+ table_summary_redundant: The table summary must not duplicate the caption
+
+ Violation —
+ The table summary duplicates the caption
+
+ blockquote_cite_exists: Use <blockquote> only for quotations, not indentation
+
+ Needs review —
+ Verify that <blockquote> should not be used only for quotations, not indentation
+
+ heading_markup_misuse: Heading elements must not be used for presentation
+
+ Needs review —
+ Verify that the heading element is a genuine heading
+
+ list_markup_review: Use proper HTML list elements to create lists
+
+ Needs review —
+ Verify whether this is a list that should use HTML list elements
+
+ script_onclick_misuse: Scripts should not be used to emulate links
+
+ Needs review —
+ Possible use of a script to emulate a link
+
+ style_before_after_review: Do not use CSS '::before' and '::after' pseudo-elements to insert non-decorative content
+
+ Needs review —
+ Verify the '::before' and '::after' pseudo-elements do not insert non-decorative content
+
+ text_block_heading: Heading text must use a heading element
+
+ Needs review —
+ Check if this text should be marked up as a heading: {0}
+
+ text_quoted_correctly: Quotations should be marked with <q> or <blockquote> elements
+
+ Needs review —
+ If the following text is a quotation, mark it as a <q> or <blockquote> element: {0}
+
+ fieldset_legend_valid: <fieldset> elements should have a single, non-empty <legend> as a label
+
+ Recommendation —
+ <fieldset> element does not have a <legend> Recommendation —
+ <fieldset> element has more than one <legend> Recommendation —
+ <fieldset> element <legend> is empty
+
+ aria_accessiblename_exists: Elements with certain roles should have accessible names
+
+ Recommendation —
+ Element <{0}> with "{1}" role has no accessible name
+
+ input_fields_grouped: Groups of logically related input elements should be contained within a <fieldset> element
+
+ Recommendation —
+ Use the <fieldset> element to group logically related input elements
+
+ list_structure_proper: List elements should only be used for lists of related items
+
+ Recommendation —
+ List element is missing or improperly structured
+
+ script_onclick_avoid: Scripts should not be used to emulate links
+
+ Recommendation —
+ Verify that 'onclick' events are not used in script to emulate a link
+
+ select_options_grouped: Groups of related options within a selection list should be grouped with <optgroup>
+
+ Recommendation —
+ Group of related options may need <optgroup>
+
+ table_layout_linearized: Avoid using tables to format text documents in columns unless the table can be linearized
+
+ Recommendation —
+ Verify table is not being used to format text content in columns unless the table can be linearized
+
+
1.3.1 Info and Relationships [A]
+Information, structure, and relationships conveyed through presentation can be programmatically determined or are available in text.
+
+ dir_attribute_valid: 'dir' attribute value must be "ltr", "rtl", or "auto"
+
+ Violation —
+ Invalid value used for the 'dir' attribute
+
+ text_whitespace_valid: Space characters should not be used to control spacing within a word
+
+ Needs review —
+ Space characters should not be used to create space between the letters of a word
+
+
1.3.2 Meaningful Sequence [A]
+When the sequence in which content is presented affects its meaning, a correct reading sequence can be programmatically determined.
+
+ text_sensory_misuse: Instructions must be meaningful without shape or location words
+
+ Needs review —
+ If the word(s) '{0}' is part of instructions for using page content, check it is still understandable without this location or shape information
+
+
1.3.3 Sensory Characteristics [A]
+Instructions provided for understanding and operating content do not rely solely on sensory characteristics of components such as shape, size, visual location, orientation, or sound.
+
+ element_orientation_unlocked: Elements should not be restricted to either landscape or portrait orientation using CSS transform property
+
+ Violation —
+ The element <{0}> is restricted to either landscape or portrait orientation using CSS transform property
+
+
1.3.4 Orientation [AA]
+Content does not restrict its view and operation to a single display orientation, such as portrait or landscape.
+
+ input_autocomplete_valid: The 'autocomplete' attribute's token(s) must be appropriate for the input form field
+
+ Violation —
+ The 'autocomplete' attribute's token(s) are not appropriate for the input form field Violation —
+ The 'autocomplete' attribute's token(s) are not appropriate for an input form field of any type Violation —
+ The 'autocomplete' attribute has an incorrect value
+
+
1.3.5 Identify Input Purpose [AA]
+The purpose of each input field that collects information about the user can be programmatically determined when the field serves a common purpose.
+
+ form_font_color: Combine color and descriptive markup to indicate required form fields
+
+ Needs review —
+ Check color is not used as the only visual means to convey which fields are required
+
+ style_color_misuse: Combine color and descriptive markup to convey information
+
+ Needs review —
+ Verify color is not used as the only visual means of conveying information
+
+
1.4.1 Use of Color [A]
+Color is not used as the only visual means of conveying information, indicating an action, prompting a response, or distinguishing a visual element.
+
+ media_autostart_controllable: Mechanism must be available to pause or stop and control the volume of the audio that plays automatically
+
+ Needs review —
+ Verify there is a mechanism to pause or stop and control the volume for the audio that plays automatically
+
+
1.4.2 Audio Control [A]
+If any audio plays automatically for more than 3 seconds, either a mechanism is available to pause or stop the audio, or a mechanism is available to control audio volume independently from the overall system volume level.
+
+ text_contrast_sufficient: The contrast ratio of text with its background must meet WCAG 2.1 AA requirements
+
+ Violation —
+ Text contrast of {0} with its background is less than the WCAG AA minimum requirements for text of size {1}px and weight of {2} Needs review —
+ The foreground text and its background color are both detected as {3}. Verify the text meets the WCAG 2.1 AA requirements for minimum contrast Needs review —
+ Verify the contrast ratio of the text against the lightest and the darkest colors of the background meets the WCAG 2.1 AA minimum requirements for text of size {1}px and weight of {2} Needs review —
+ Verify the contrast ratio of the text with shadow meets the WCAG 2.1 AA minimum requirements for text of size {1}px and weight of {2}
+
+
1.4.3 Contrast (Minimum) [AA]
+The visual presentation of text and images of text has a contrast ratio of at least 4.5:1, with a 3:1 ratio for large-scale text.
+
+ style_viewport_resizable: Text must scale up to 200% without loss of content or functionality
+
+ Needs review —
+ Verify that text sized using viewport units can be resized up to 200%
+
+ meta_viewport_zoomable: The 'meta[name=viewport]' should not prevent the browser zooming the content
+
+ Recommendation —
+ Confirm the 'meta[name=viewport]' with "{0}" can be zoomed by user
+
+
1.4.4 Resize text [AA]
+Text can be resized without assistive technology up to 200 percent without loss of content or functionality.
+
+
1.4.5 Images of Text [AA]
+If the technologies being used can achieve the visual presentation, text should not be used to convey information rather than images of text.
+
+
+ meta_viewport_zoomable: The 'meta[name=viewport]' should not prevent the browser zooming the content
+
+ Recommendation —
+ Confirm the 'meta[name=viewport]' with "{0}" can be zoomed by user
+
+
1.4.10 Reflow [AA]
+Content can reflow without loss of information or functionality, and without requiring scrolling in two dimensions.
+
+
1.4.11 Non-text Contrast [AA]
+The parts of graphical objects required to understand the content, and the visual information required to identify UI components and states, have a contrast ratio of at least 3:1 against adjacent colors.
+
+
+ text_spacing_valid: CSS !important should not be used in inline style to control letter or word spacing or line height
+
+ Violation —
+ CSS !important should not be used in inline ‘letter-spacing’ style Violation —
+ CSS !important should not be used in inline ‘word-spacing’ style Violation —
+ CSS !important should not be used in inline ‘line-height’ style
+
+
1.4.12 Text Spacing [AA]
+No loss of content or functionality occurs when users change letter, word and paragraph spacing, as well as line height.
+
+ style_hover_persistent: The pointer should be able to move over content displayed on hover
+
+ Needs review —
+ Confirm the pointer can be positioned over the displayed element, not just the trigger Needs review —
+ Confirm the pointer can be positioned over all the information displayed on hover Needs review —
+ Confirm the margin style attribute has not prevented the pointer from hovering over the displayed element, not just the trigger
+
+
1.4.13 Content on Hover or Focus [AA]
+Where hover or focus actions cause additional content to become visible and hidden, the additional content is dismissable, hoverable and persistent.
+
+ aria_activedescendant_tabindex_valid: Element using 'aria-activedescendant' property should be tabbable
+
+ Violation —
+ The <{0}> element using 'aria-activedescendant' set to "{1}" is not tabbable
+
+ aria_child_tabbable: UI component must have at least one tabbable descendant for keyboard access
+
+ Violation —
+ None of the descendent elements with "{1}" role is tabbable
+
+ element_scrollable_tabbable: Scrollable elements should be tabbable or contain tabbable content
+
+ Violation —
+ The scrollable element <{0}> with non-interactive content is not tabbable
+
+ iframe_interactive_tabbable: Iframe with interactive content should not be excluded from tab order using tabindex
+
+ Violation —
+ The <iframe> with interactive content is excluded from tab order using tabindex
+
+ application_content_accessible: Non-decorative static text and image content within an element with "application" role must be accessible
+
+ Needs review —
+ Verify that the non-decorative static text and image content within an element with "application" role are accessible
+
+ aria_keyboard_handler_exists: Interactive WAI_ARIA UI components must provide keyboard access
+
+ Needs review —
+ Verify the <{0}> element with "{1}" role has keyboard access
+
+ media_keyboard_controllable: Media using <audio> and/or <video> elements must have keyboard accessible controls
+
+ Needs review —
+ Verify media using <audio> and/or <video> elements have keyboard accessible controls
+
+ element_mouseevent_keyboard: All interactive content with mouse event handlers must have equivalent keyboard access
+
+ Recommendation —
+ Confirm the <{0}> element with mouse event handler(s) '{1}' has a corresponding keyboard handler(s)
+
+
2.1.1 Keyboard [A]
+All functionality of the content is operable through a keyboard interface without requiring specific timings for individual keystrokes.
+
+ download_keyboard_controllable: File download mechanisms should be keyboard-operable and preserve page focus location
+
+ Recommendation —
+ Verify that the file download mechanism does not cause a keyboard trap
+
+
2.1.2 No Keyboard Trap [A]
+If keyboard focus can be moved to a component using a keyboard interface, then focus can be moved away from that component using only a keyboard interface, and, if it requires more than unmodified arrow or tab keys or other standard exit methods, the user is advised of the method for moving focus away.
+
+
2.1.4 Character Key Shortcuts [A]
+If a keyboard shortcut is implemented using only letter, punctuation, number or symbol characters, then the shortcut can be turned off, remapped or activated only on focus.
+
+
+ meta_redirect_optional: Page should not automatically refresh without warning or option to turn it off or adjust the time limit
+
+ Violation —
+ Check page does not automatically refresh without warning or options Violation —
+ Check page does not automatically refresh without warning or options
+
+ meta_refresh_delay: Pages should not refresh automatically
+
+ Needs review —
+ Verify page is not being caused to refresh automatically
+
+
2.2.1 Timing Adjustable [A]
+For each time limit that is set by the content, the user can turn off, adjust, or extend the limit.
+
+ blink_elem_deprecated: Content that blinks persistently must not be used
+
+ Violation —
+ Content found that blinks persistently
+
+ marquee_elem_avoid: The <marquee> element is obsolete and should not be used
+
+ Violation —
+ Scrolling content found that uses the obsolete <marquee> element
+
+ blink_css_review: Do not use the "blink" value of the 'text-decoration' property for longer than five seconds
+
+ Needs review —
+ Check the "blink" value of the CSS 'text-decoration' property is not used for more than than five seconds
+
+
2.2.2 Pause, Stop, Hide [A]
+For moving, blinking, scrolling, or auto-updating information, the user can pause, stop, hide or adjust the information.
+
+
2.3.1 Three Flashes or Below Threshold [A]
+Content does not contain anything that flashes more than three times in any one second period, or the flash is below the general flash and red flash thresholds.
+
+
+ aria_application_label_unique: Each element with "application" role must have a unique label that describes its purpose
+
+ Violation —
+ Multiple elements with "application" role do not have unique labels
+
+ aria_application_labelled: An element with "application" role must have an accessible name that describes its purpose
+
+ Violation —
+ Element with "application" role does not have an accessible name
+
+ aria_article_label_unique: Each element with "article" role must have a unique label that describes its purpose
+
+ Violation —
+ Multiple elements with "article" role do not have unique labels
+
+ aria_banner_label_unique: Each element with "banner" role must have a unique label that describes its purpose
+
+ Violation —
+ Multiple elements with "banner" role do not have unique labels
+
+ aria_banner_single: There must be only one element with "banner" role on the page
+
+ Violation —
+ There is more than one element with "banner" role on the page
+
+ aria_complementary_label_unique: Each element with "complementary" role must have a unique label that describes its purpose
+
+ Violation —
+ Multiple elements with "complementary" role do not have unique labels
+
+ aria_complementary_labelled: An element with "complementary" role must have an accessible name
+
+ Violation —
+ The element with "complementary" role does not have an accessible name
+
+ aria_content_in_landmark: All content must reside within an element with a landmark role
+
+ Violation —
+ Content is not within a landmark element
+
+ aria_contentinfo_label_unique: Each element with "contentinfo" role must have a unique label that describes its purpose
+
+ Violation —
+ Multiple elements with "contentinfo" role do not have unique labels
+
+ aria_contentinfo_single: A page, document or application should only have one element with "contentinfo" role
+
+ Violation —
+ Multiple elements with "contentinfo" role found on a page
+
+ aria_document_label_unique: All elements with a "document" role must have unique labels
+
+ Violation —
+ Multiple elements with a "document" role do not have unique labels
+
+ aria_form_label_unique: Each element with "form" role must have a unique label that describes its purpose
+
+ Violation —
+ Multiple elements with "form" role do not have unique labels
+
+ aria_main_label_unique: Elements with "main" role must have unique labels
+
+ Violation —
+ Multiple elements with "main" role do not have unique labels
+
+ aria_navigation_label_unique: Each element with "navigation" role must have a unique label that describes its purpose
+
+ Violation —
+ Multiple elements with "navigation" role do not have unique labels
+
+ aria_region_label_unique: Each element with a "region" role must have a unique label
+
+ Violation —
+ Multiple elements with "region" role do not have unique labels
+
+ aria_region_labelled: Each element with "region" role must have an accessible name that describes its purpose
+
+ Violation —
+ Element with a "region" role does not have an accessible name
+
+ aria_search_label_unique: Each element with "search" role must have a unique label that describes its purpose
+
+ Violation —
+ Multiple elements with "search" role do not have unique labels
+
+ skip_main_exists: Pages must provide a way to skip directly to the main content
+
+ Violation —
+ The page does not provide a way to quickly navigate to the main content (ARIA "main" landmark or a skip link)
+
+ frame_src_valid: A <frame> containing non-HTML content must be made accessible
+
+ Needs review —
+ Verify <frame> content is accessible
+
+ html_skipnav_exists: Provide a way to bypass blocks of content that are repeated on multiple Web pages
+
+ Needs review —
+ Verify there is a way to bypass blocks of content that are repeated on multiple Web pages
+
+ skip_main_described: The description of a hyperlink used to skip content must communicate where it links to
+
+ Needs review —
+ Verify that if this hyperlink skips content, the description communicates where it links to
+
+ aria_complementary_label_visible: Each element with "complementary" role should have a visible label that describes its purpose
+
+ Recommendation —
+ The element with "complementary" role does not have a visible label
+
+ aria_contentinfo_misuse: An element with "contentinfo" role is only permitted with an element with "main" role
+
+ Recommendation —
+ The element with "contentinfo" role is present without an element with "main" role
+
+ aria_main_label_visible: Each element with "main" role should have a unique visible label that describes its purpose
+
+ Recommendation —
+ Multiple elements with "main" role do not have unique visible labels
+
+
2.4.1 Bypass Blocks [A]
+A mechanism is available to bypass blocks of content that are repeated on multiple Web pages.
+
+ page_title_exists: The page should have a title that correctly identifies the subject of the page
+
+ Violation —
+ Missing <head> element so there can be no <title> element present Violation —
+ Missing <title> element in <head> element Violation —
+ The <title> element is empty (no innerHTML)
+
+ page_title_valid: Page <title> should be a descriptive title, rather than a filename
+
+ Needs review —
+ Verify that using the filename as the page <title> value is descriptive
+
+
2.4.2 Page Titled [A]
+Web pages, non-web documents, and software have titles that describe topic or purpose.
+
+ widget_tabbable_exists: Component must have at least one tabbable element
+
+ Needs review —
+ Component with "{0}" role does not have a tabbable element
+
+ widget_tabbable_single: Certain components must have no more than one tabbable element
+
+ Needs review —
+ Component with "{0}" role has more than one tabbable element
+
+
2.4.3 Focus Order [A]
+If content can be navigated sequentially and the navigation sequences affect meaning or operation, focusable components receive focus in an order that preserves meaning and operability.
+
+ a_text_purpose: Hyperlinks must have a text description of their purpose
+
+ Violation —
+ Hyperlink has no link text, label or image with a text alternative
+
+
2.4.4 Link Purpose (In Context) [A]
+The purpose of each link can be determined from the link text alone or from the link text together with its programmatically determined link content.
+
+
2.4.5 Multiple Ways [AA]
+More than one way is available to locate a Web page within a set of Web pages, except where the Web Page is the result of, or a step in, a process.
+
+
+ heading_content_exists: Heading elements must provide descriptive text
+
+ Recommendation —
+ Heading element has no descriptive content
+
+
2.4.6 Headings and Labels [AA]
+Headings and labels describe topic or purpose.
+
+ element_tabbable_visible: A tabbable element should be visible on the screen when it has keyboard focus
+
+ Needs review —
+ Confirm the element should be tabbable, and is visible on the screen when it has keyboard focus
+
+ script_focus_blur_review: Scripting must not remove focus from content that normally receives focus
+
+ Needs review —
+ Verify script does not remove focus from content that normally receives focus
+
+ style_focus_visible: The keyboard focus indicator must be highly visible when default border or outline is modified by CSS
+
+ Needs review —
+ Check the keyboard focus indicator is highly visible when using CSS declaration for 'border' or 'outline'
+
+
2.4.7 Focus Visible [AA]
+Any keyboard operable user interface has a mode of operation where the keyboard focus indicator is visible.
+
+
2.5.1 Pointer Gestures [A]
+All functionality that uses multipoint or path-based gestures for operation can be operated with a single pointer without a path-based gesture.
+
+
+
2.5.2 Pointer Cancellation [A]
+For functionality that can be operated using a single pointer, completion of the function is on the up-event with an ability to abort, undo or reverse the outcome.
+
+
+ label_name_visible: Accessible name must match or contain the visible label text
+
+ Violation —
+ Accessible name does not match or contain the visible label text
+
+
2.5.3 Label in Name [A]
+For user interface components with labels that include text or images of text, the accessible name contains the text that is presented visually.
+
+
2.5.4 Motion Actuation [A]
+Functionality that can be operated by motion can also be operated by user interface components, and the motion trigger can be disabled.
+
+
+ html_lang_exists: Page must identify the default language of the document with a 'lang' attribute
+
+ Violation —
+ Page detected as XHTML 1.0, but has neither 'lang' nor 'xml:lang' attributes Violation —
+ Page detected as XHTML, but does not have an 'xml:lang' attribute Violation —
+ Page detected as HTML, but does not have a 'lang' attribute Violation —
+ Page detected with 'lang' and 'xml:lang' attributes and primary languages do not match: "{0}", "{1}" Violation —
+ Page detected with 'lang' and 'xml:lang' attributes that do not match: "{0}", "{1}" Needs review —
+ Page detected as XHTML 1.0 with only a 'lang' attribute. Confirm that page is only delivered via text/html mime type Needs review —
+ Page detected as XHTML 1.0 with only an 'xml:lang' attribute. Confirm that page is only delivered via xml mime type
+
+ html_lang_valid: The default human language of the page must be valid and specified in accordance with BCP 47
+
+ Violation —
+ Specified 'lang' attribute does not include a valid primary language Violation —
+ Specified 'lang' attribute does not conform to BCP 47 Violation —
+ Specified 'xml:lang' attribute does not include a valid primary language Violation —
+ Specified 'xml:lang' attribute does not conform to BCP 47
+
+
3.1.1 Language of Page [A]
+The default human language of Web pages, non-Web documents, or software can be programmatically determined.
+
+ element_lang_valid: The change in language of specific content must be valid and specified in accordance with BCP 47
+
+ Violation —
+ Specified 'lang' attribute does not include a valid primary language Violation —
+ Specified 'lang' attribute does not conform to BCP 47 Violation —
+ Specified 'xml:lang' attribute does not include a valid primary language Violation —
+ Specified 'xml:lang' attribute does not conform to BCP 47
+
+
3.1.2 Language of Parts [AA]
+The human language of each passage or phrase in the content can be programmatically determined.
+
+ script_focus_blur_review: Scripting must not remove focus from content that normally receives focus
+
+ Needs review —
+ Verify script does not remove focus from content that normally receives focus
+
+ script_select_review: No changes of context should occur when a selection value receives focus
+
+ Needs review —
+ Verify that no change of context or action occurs when selection options in this component receive focus
+
+
3.2.1 On Focus [A]
+When any component receives focus, it does not initiate a change of context.
+
+ form_interaction_review: User should be informed in advance when interacting with content causes a change of context
+
+ Needs review —
+ Verify that interacting with content will not open pop-up windows or change the active window without informing the user
+
+ form_submit_button_exists: A <form> element should have a submit button or an image button
+
+ Needs review —
+ Verify the <form> element has a submit button or an image button
+
+ form_submit_review: A form should not be submitted automatically without warning the user
+
+ Needs review —
+ Confirm the form does not submit automatically without warning
+
+ input_onchange_review: Verify that any changes of context are explained in advance to the user
+
+ Needs review —
+ Verify that any changes of context are explained in advance to the user
+
+ a_target_warning: Users should be warned in advance if their input action will open a new window or otherwise change their context
+
+ Recommendation —
+ Inform the user when their input action will open a new window or otherwise change their context
+
+
3.2.2 On Input [A]
+Changing the setting of any user interface component does not automatically cause a change of context unless the user has been advised of the behavior before using the component.
+
+
3.2.3 Consistent Navigation [AA]
+Navigational mechanisms that are repeated on multiple Web pages within a set of Web pages occur in the same relative order each time they are repeated, unless a change is initiated by the user.
+
+
+
3.2.4 Consistent Identification [AA]
+Components that have the same functionality within a set of Web pages are identified consistently.
+
+
+ error_message_exists: A custom error message must reference a valid 'id' value and when triggered the message must be appropriately exposed
+
+ Violation —
+ Custom error message has invalid reference 'id' value Violation —
+ Custom error message is not visible
+
+
3.3.1 Error Identification [A]
+If an input error is automatically detected, the item that is in error is identified and the error is described to the user in text.
+
+ fieldset_label_valid: Groups with nested inputs must have unique accessible name
+
+ Violation —
+ Group/Fieldset does not have an accessible name Violation —
+ Group/Fieldset "{0}" has a duplicate name to another group
+
+ input_label_after: Checkboxes and radio buttons must have a label after the input control
+
+ Violation —
+ Checkbox or radio button is nested in label, so label is not after the input control Violation —
+ Label text is located before its associated checkbox or radio button element
+
+ input_label_before: Text inputs and <select> elements must have a label before the input control
+
+ Violation —
+ Text input is nested in label such that input precedes the label text Violation —
+ Label text is located after its associated text input or <select> element
+
+ input_placeholder_label_visible: HTML5 'placeholder' attribute must not be used as a visible label replacement
+
+ Needs review —
+ HTML5 placeholder is the only visible label Needs review —
+ Additional visible label referenced by 'aria-labelledby' is not valid
+
+ input_label_visible: An input element must have an associated visible label
+
+ Needs review —
+ The input element does not have an associated visible label
+
+ element_accesskey_labelled: An HTML element with an assigned 'accesskey' attribute must have an associated label
+
+ Recommendation —
+ The HTML element with an assigned 'accesskey' attribute does not have an associated label
+
+
3.3.2 Labels or Instructions [A]
+Labels or instructions are provided when content requires user input.
+
+
3.3.3 Error Suggestion [AA]
+If an input error is automatically detected and suggestions for correction are known, then the suggestions are provided to the user, unless it would jeopardize the security or purpose of the content.
+
+
+
3.3.4 Error Prevention (Legal, Financial, Data) [AA]
+For content that cause legal commitments or financial transactions for the user to occur, that modify or delete user-controllable data in data storage systems, or that submit user test responses, the user can reverse, correct, or confirm the action.
+
+
+ element_id_unique: Element 'id' attribute values must be unique within a document
+
+ Violation —
+ The <{0}> element has the id "{1}" that is empty Violation —
+ The <{0}> element has the id "{1}" that is already in use
+
+ element_accesskey_unique: 'accesskey' attribute values on each element must be unique for the page
+
+ Violation —
+ 'accesskey' attribute value on the element is not unique
+
+ aria_attribute_deprecated: No deprecated ARIA role or attribute should be used
+
+ Recommendation —
+ The ARIA role "{0}" is deprecated in the ARIA specification Recommendation —
+ The ARIA attributes "{0}" are deprecated in the ARIA specification Recommendation —
+ The ARIA attributes "{0}" are deprecated for the role "{1}" in the ARIA specification
+
+ element_attribute_deprecated: Avoid use of obsolete features if possible
+
+ Recommendation —
+ The <{0}> element is deprecated in HTML 5 Recommendation —
+ The HTML attribute(s) "{0}" is deprecated in HTML 5 Recommendation —
+ The HTML attribute(s) "{0}" is deprecated for the <{1}> element in HTML 5
+
+ aria_role_redundant: An explicitly-assigned ARIA role should not be redundant with the implicit role of the element
+
+ Recommendation —
+ The explicitly-assigned ARIA role "{0}" is redundant with the implicit role of the element <{1}>
+
+
4.1.1 Parsing [A]
+In content implemented using markup languages, elements have complete start and end tags, elements are nested according to their specifications, elements do not contain duplicate attributes, and any IDs are unique, except where the specifications allow these features.
+
+ combobox_popup_reference: The 'aria-controls' (for ARIA 1.2) or the 'aria-owns' (for ARIA 1.0) attribute of the expanded combobox must reference a valid popup 'id' value
+
+ Violation —
+ The 'aria-owns' attribute of the expanded combobox is missing Violation —
+ The 'aria-controls' attribute of the expanded combobox is missing Violation —
+ The 'aria-owns' attribute "{0}" of the expanded combobox does not reference a valid popup 'id' value Violation —
+ The 'aria-controls' attribute "{0}" of the expanded combobox does not reference a valid popup 'id' value Violation —
+ The combobox 'aria-expanded' attribute is true, but the combobox popup is not visible Violation —
+ The combobox 'aria-expanded' attribute is false, but the combobox popup is visible
+
+ aria_activedescendant_valid: The 'aria-activedescendant' property must reference the 'id' of a non-empty, non-hidden active child element
+
+ Violation —
+ The 'aria-activedescendant' property is empty Violation —
+ The 'aria-activedescendant' property references a hidden node Violation —
+ Element is not a combobox, and the referenced active-descendant element is not a valid descendant
+
+ combobox_active_descendant: 'aria-activedescendant' must be used to define focus within the combobox popup, except when using a dialog popup
+
+ Violation —
+ The element referenced by 'aria-activedescendant' "{0}" does not exist Violation —
+ The 'aria-activedescendant' "{0}" references an element with the roles "{1}", which does not have a valid ARIA role of 'option', 'gridcell', 'row', or 'treeitem' Violation —
+ The 'aria-activedescendant' "{0}" references an element that does not have 'aria-selected' set to true
+
+ aria_role_valid: ARIA roles must be valid for the element to which they are assigned
+
+ Violation —
+ The ARIA role '{0}' is not valid for the element <{1}> Violation —
+ The ARIA role '{0}' is not valid for the element <{1}> and may be ignored by the browser since the element is focusable
+
+ aria_attribute_valid: ARIA attributes must be valid for the element and ARIA role to which they are assigned
+
+ Violation —
+ The ARIA attributes "{0}" are not valid for the element <{1}> with ARIA role "{2}" Violation —
+ The ARIA attributes "{0}" are not valid for the element <{1}> with implicit ARIA role "{2}"
+
+ combobox_autocomplete_valid: A combobox that supports autocompletion behavior must have the 'aria-autocomplete' attribute only on its text input element with a valid value; a value of '"inline"' is not supported
+
+ Violation —
+ The combobox has the 'aria-autocomplete' attribute incorrectly set on an element within the popup referenced by "{0}" Violation —
+ The combobox does not support an 'aria-autocomplete' attribute value set to '"inline"'
+
+ combobox_focusable_elements: Tabbable focus for the combobox must be allowed only on the text input, except when using a dialog popup
+
+ Violation —
+ The combobox element does not allow DOM focus as required Violation —
+ The popup of the combobox has DOM focus or has 'aria-activedescendant' defined, which is not allowed
+
+ combobox_haspopup_valid: The combobox attribute 'aria-haspopup' value must be appropriate for the role of the element referenced by 'aria-controls' (ARIA 1.2) or 'aria-owns' (ARIA 1.0)
+
+ Violation —
+ The 'role' value "{0}" of the popup element "{1}" should be one of "listbox", "grid", "tree" or "dialog" Violation —
+ The value of the combobox 'aria-haspopup' attribute "{0}" does not match the 'role' value of the popup element "{1}"
+
+ input_label_exists: Each form control must have an associated label
+
+ Violation —
+ Form control element <{0}> has no associated label Violation —
+ Form control with "{0}" role has no associated label
+
+ aria_descendant_valid: Browsers ignore the explicit and implicit ARIA roles of the descendants of certain elements
+
+ Needs review —
+ The element with role "{0}" contains descendants with implicit roles "{1}" which are ignored by browsers Violation —
+ The element with role "{0}" contains descendants with roles "{1}" which are ignored by browsers
+
+ aria_role_allowed: Elements must have a valid 'role' per ARIA specification
+
+ Violation —
+ The role '{0}' defined on the element is not valid per ARIA specification Needs review —
+ Some of the roles, '{0}', defined on the element are not valid per ARIA specification
+
+ aria_attribute_allowed: ARIA attributes must be valid for the element's role
+
+ Violation —
+ The attribute(s) '{0}' referenced by the element <{1}> is not a valid ARIA state or property
+
+ aria_attribute_conflict: An ARIA attribute must not conflict with the corresponding HTML attribute
+
+ Violation —
+ The ARIA attribute "{0}" is in conflict with the corresponding HTML attribute "{1}"
+
+ aria_attribute_exists: When specifying a required ARIA attribute, the value must not be empty
+
+ Violation —
+ The element attribute(s): '{0}' value is empty
+
+ aria_attribute_required: When using a ARIA role on an element, the required attributes for that role must be defined
+
+ Violation —
+ An element with ARIA role '{0}' does not have the required ARIA attribute(s): '{1}'
+
+ aria_attribute_value_valid: ARIA property values must be valid
+
+ Violation —
+ The value "{0}" specified for attribute '{1}' on element <{2}> is not valid
+
+ aria_eventhandler_role_valid: Elements with event handlers must have a valid ARIA role
+
+ Violation —
+ The <{0}> element with '{1}' does not have a valid ARIA role specified
+
+ aria_hidden_nontabbable: A hidden element should not contain any tabbable elements
+
+ Violation —
+ Element "{0}" should not be focusable within the subtree of an element with an 'aria-hidden' attribute with value 'true'
+
+ aria_id_unique: The ARIA property must reference a non-empty unique id of an existing element that is visible
+
+ Violation —
+ The 'id' "{0}" specified for the ARIA property '{1}' value is not valid
+
+ aria_parent_required: An element with an implicit or explicit role must be contained within a valid element
+
+ Violation —
+ The element with role "{0}" is not contained in or owned by an element with one of the following roles: "{1}"
+
+ aria_toolbar_label_unique: All toolbar components on a page must have unique labels specified
+
+ Violation —
+ Multiple toolbar components do not have unique labels
+
+ aria_widget_labelled: Interactive component must have a programmatically associated name
+
+ Violation —
+ Interactive component with ARIA role '{0}' does not have a programmatically associated name
+
+ combobox_design_valid: The combobox design pattern must be valid for ARIA 1.2
+
+ Violation —
+ The combobox design pattern is detected as ARIA 1.1, which is not allowed by ARIA 1.2
+
+ element_tabbable_role_valid: A tabbable element must have a valid widget role
+
+ Violation —
+ The tabbable element's role '{0}' is not a widget role
+
+ frame_title_exists: Inline frames must have a unique, non-empty 'title' attribute
+
+ Violation —
+ Inline frame does not have a 'title' attribute
+
+ label_content_exists: A <label> element must have non-empty descriptive text that identifies the purpose of the interactive component
+
+ Violation —
+ The <label> element does not have descriptive text that identifies the expected input
+
+ list_children_valid: List component with "group" role must limit children to <listitem> elements
+
+ Violation —
+ List component with "group" role has children that are not <listitem> elements
+
+ table_aria_descendants: Table structure elements cannot specify an explicit 'role' within table containers
+
+ Violation —
+ An explicit ARIA 'role' is not valid for <{0}> element within a ARIA role '{1}' per the ARIA in HTML specification
+
+ input_haspopup_conflict: <input> element with 'list' attribute should not also use 'aria-haspopup' attribute
+
+ Needs review —
+ <input> element with 'list' attribute also uses 'aria-haspopup' attribute with type="{0}" Needs review —
+ <input> element with 'list' attribute also uses 'aria-haspopup' attribute with missing or invalid input type
+
+ aria_child_valid: An element with a ARIA role must own a required child
+
+ Recommendation —
+ The element with role "{0}" does not own any child element with any of the following role(s): "{1}" Recommendation —
+ The element with role "{0}" owns the child element with the role "{1}" that is not one of the allowed role(s): "{2}"
+
+ aria_attribute_redundant: An ARIA attribute should not be used when there is a corresponding HTML attribute
+
+ Recommendation —
+ The ARIA attribute "{0}" is redundant with the HTML attribute "{1}"
+
+ canvas_content_described: The <canvas> element may not be accessible
+
+ Recommendation —
+ Verify accessibility of the <canvas> element
+
+
4.1.2 Name, Role, Value [A]
+For all user interface components (including, but not limited to: form elements, links and components generated by scripts), the name and role can be programmatically determined; states, properties, and values that can be set by the user can be programmatically set; and notification of changes to these items is available to user agents, including assistive technologies.
+
+
+ 4.1.3 Status Messages [AA]
+In content implemented using markup languages, status messages can be programmatically determined through role or properties such that they can be presented to the user by assistive technologies without receiving focus.
+
+