+
+
+ 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
+
+ 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.
+
+
+
4.1.1 Parsing [A]
+undefined
+
+
+ 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.
+
+
+ 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
+
+ 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
+
+
HTML HTML Messages [NA]
+The HTML specification issues that cause accessibility issues may be covered by other rules and will be reported under those accessibility requirements. However, some non-conforming HTML specification issues are reported.
+
+ 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
+
+ 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}>
+
+
+ ARIA ARIA Messages [NA]
+The ARIA specification issues that cause accessibility issues may be covered by other rules and will be reported under those accessibility requirements. However, some non-conforming ARIA specification issues are reported.
+