From ba1e4e65fb5be3263aec635408603b5a550ce3a4 Mon Sep 17 00:00:00 2001 From: Dan Tripp Date: Sun, 31 Oct 2021 21:26:36 -0400 Subject: [PATCH] update rule-descriptions.md --- doc/rule-descriptions.md | 112 +++++++++++++++++++-------------------- 1 file changed, 56 insertions(+), 56 deletions(-) diff --git a/doc/rule-descriptions.md b/doc/rule-descriptions.md index 0f1d6cca4a..317534812f 100644 --- a/doc/rule-descriptions.md +++ b/doc/rule-descriptions.md @@ -11,62 +11,62 @@ ## WCAG 2.0 Level A & AA Rules -| Rule ID | Description | Impact | Tags | Issue Type | ACT Rules | -| :------------------------------------------------------------------------------------------------------------------------------- | :-------------------------------------------------------------------------------------------------------------------- | :---------------- | :----------------------------------------------------------------------------------------- | :------------------------- | :----------------------------------------------------------------------------------------------------- | -| [area-alt](https://dequeuniversity.com/rules/axe/4.3/area-alt?application=RuleDescription) | Ensures <area> elements of image maps have alternate text | Critical | cat.text-alternatives, wcag2a, wcag111, wcag244, wcag412, section508, section508.22.a, ACT | failure, needs review | [c487ae](https://act-rules.github.io/rules/c487ae) | -| [aria-allowed-attr](https://dequeuniversity.com/rules/axe/4.3/aria-allowed-attr?application=RuleDescription) | Ensures ARIA attributes are allowed for an element's role | Serious, Critical | cat.aria, wcag2a, wcag412 | failure, needs review | [5c01ea](https://act-rules.github.io/rules/5c01ea) | -| [aria-command-name](https://dequeuniversity.com/rules/axe/4.3/aria-command-name?application=RuleDescription) | Ensures every ARIA button, link and menuitem has an accessible name | Serious | cat.aria, wcag2a, wcag412 | failure, needs review | [97a4e1](https://act-rules.github.io/rules/97a4e1) | -| [aria-hidden-body](https://dequeuniversity.com/rules/axe/4.3/aria-hidden-body?application=RuleDescription) | Ensures aria-hidden='true' is not present on the document body. | Critical | cat.aria, wcag2a, wcag412 | failure | | -| [aria-hidden-focus](https://dequeuniversity.com/rules/axe/4.3/aria-hidden-focus?application=RuleDescription) | Ensures aria-hidden elements do not contain focusable elements | Serious | cat.name-role-value, wcag2a, wcag412, wcag131 | failure, needs review | [6cfa84](https://act-rules.github.io/rules/6cfa84) | -| [aria-input-field-name](https://dequeuniversity.com/rules/axe/4.3/aria-input-field-name?application=RuleDescription) | Ensures every ARIA input field has an accessible name | Moderate, Serious | cat.aria, wcag2a, wcag412, ACT | failure, needs review | [e086e5](https://act-rules.github.io/rules/e086e5) | -| [aria-meter-name](https://dequeuniversity.com/rules/axe/4.3/aria-meter-name?application=RuleDescription) | Ensures every ARIA meter node has an accessible name | Serious | cat.aria, wcag2a, wcag111 | failure, needs review | | -| [aria-progressbar-name](https://dequeuniversity.com/rules/axe/4.3/aria-progressbar-name?application=RuleDescription) | Ensures every ARIA progressbar node has an accessible name | Serious | cat.aria, wcag2a, wcag111 | failure, needs review | | -| [aria-required-attr](https://dequeuniversity.com/rules/axe/4.3/aria-required-attr?application=RuleDescription) | Ensures elements with ARIA roles have all required ARIA attributes | Critical | cat.aria, wcag2a, wcag412 | failure | | -| [aria-required-children](https://dequeuniversity.com/rules/axe/4.3/aria-required-children?application=RuleDescription) | Ensures elements with an ARIA role that require child roles contain them | Critical | cat.aria, wcag2a, wcag131 | failure, needs review | [ff89c9](https://act-rules.github.io/rules/ff89c9) | -| [aria-required-parent](https://dequeuniversity.com/rules/axe/4.3/aria-required-parent?application=RuleDescription) | Ensures elements with an ARIA role that require parent roles are contained by them | Critical | cat.aria, wcag2a, wcag131 | failure | [bc4a75](https://act-rules.github.io/rules/bc4a75), [ff89c9](https://act-rules.github.io/rules/ff89c9) | -| [aria-roledescription](https://dequeuniversity.com/rules/axe/4.3/aria-roledescription?application=RuleDescription) | Ensure aria-roledescription is only used on elements with an implicit or explicit role | Serious | cat.aria, wcag2a, wcag412 | failure, needs review | | -| [aria-roles](https://dequeuniversity.com/rules/axe/4.3/aria-roles?application=RuleDescription) | Ensures all elements with a role attribute use a valid value | Serious, Critical | cat.aria, wcag2a, wcag412 | failure, needs review | | -| [aria-toggle-field-name](https://dequeuniversity.com/rules/axe/4.3/aria-toggle-field-name?application=RuleDescription) | Ensures every ARIA toggle field has an accessible name | Moderate, Serious | cat.aria, wcag2a, wcag412, ACT | failure, needs review | | -| [aria-tooltip-name](https://dequeuniversity.com/rules/axe/4.3/aria-tooltip-name?application=RuleDescription) | Ensures every ARIA tooltip node has an accessible name | Serious | cat.aria, wcag2a, wcag412 | failure, needs review | | -| [aria-valid-attr-value](https://dequeuniversity.com/rules/axe/4.3/aria-valid-attr-value?application=RuleDescription) | Ensures all ARIA attributes have valid values | Serious, Critical | cat.aria, wcag2a, wcag412 | failure, needs review | [5c01ea](https://act-rules.github.io/rules/5c01ea), [c487ae](https://act-rules.github.io/rules/c487ae) | -| [aria-valid-attr](https://dequeuniversity.com/rules/axe/4.3/aria-valid-attr?application=RuleDescription) | Ensures attributes that begin with aria- are valid ARIA attributes | Critical | cat.aria, wcag2a, wcag412 | failure | | -| [audio-caption](https://dequeuniversity.com/rules/axe/4.3/audio-caption?application=RuleDescription) | Ensures <audio> elements have captions | Critical | cat.time-and-media, wcag2a, wcag121, section508, section508.22.a | needs review | [c3232f](https://act-rules.github.io/rules/c3232f), [e7aa44](https://act-rules.github.io/rules/e7aa44) | -| [blink](https://dequeuniversity.com/rules/axe/4.3/blink?application=RuleDescription) | Ensures <blink> elements are not used | Serious | cat.time-and-media, wcag2a, wcag222, section508, section508.22.j | failure | | -| [button-name](https://dequeuniversity.com/rules/axe/4.3/button-name?application=RuleDescription) | Ensures buttons have discernible text | Critical | cat.name-role-value, wcag2a, wcag412, section508, section508.22.a, ACT | failure, needs review | [97a4e1](https://act-rules.github.io/rules/97a4e1), [m6b1q3](https://act-rules.github.io/rules/m6b1q3) | -| [bypass](https://dequeuniversity.com/rules/axe/4.3/bypass?application=RuleDescription) | Ensures each page has at least one mechanism for a user to bypass navigation and jump straight to the content | Serious | cat.keyboard, wcag2a, wcag241, section508, section508.22.o | needs review | | -| [color-contrast](https://dequeuniversity.com/rules/axe/4.3/color-contrast?application=RuleDescription) | Ensures the contrast between foreground and background colors meets WCAG 2 AA contrast ratio thresholds | Serious | cat.color, wcag2aa, wcag143 | failure, needs review | | -| [definition-list](https://dequeuniversity.com/rules/axe/4.3/definition-list?application=RuleDescription) | Ensures <dl> elements are structured correctly | Serious | cat.structure, wcag2a, wcag131 | failure | | -| [dlitem](https://dequeuniversity.com/rules/axe/4.3/dlitem?application=RuleDescription) | Ensures <dt> and <dd> elements are contained by a <dl> | Serious | cat.structure, wcag2a, wcag131 | failure | | -| [document-title](https://dequeuniversity.com/rules/axe/4.3/document-title?application=RuleDescription) | Ensures each HTML document contains a non-empty <title> element | Serious | cat.text-alternatives, wcag2a, wcag242, ACT | failure | [2779a5](https://act-rules.github.io/rules/2779a5) | -| [duplicate-id-active](https://dequeuniversity.com/rules/axe/4.3/duplicate-id-active?application=RuleDescription) | Ensures every id attribute value of active elements is unique | Serious | cat.parsing, wcag2a, wcag411 | failure | | -| [duplicate-id-aria](https://dequeuniversity.com/rules/axe/4.3/duplicate-id-aria?application=RuleDescription) | Ensures every id attribute value used in ARIA and in labels is unique | Critical | cat.parsing, wcag2a, wcag411 | failure | [3ea0c8](https://act-rules.github.io/rules/3ea0c8) | -| [duplicate-id](https://dequeuniversity.com/rules/axe/4.3/duplicate-id?application=RuleDescription) | Ensures every id attribute value is unique | Minor | cat.parsing, wcag2a, wcag411 | failure | | -| [form-field-multiple-labels](https://dequeuniversity.com/rules/axe/4.3/form-field-multiple-labels?application=RuleDescription) | Ensures form field does not have multiple label elements | Moderate | cat.forms, wcag2a, wcag332 | needs review | | -| [frame-focusable-content](https://dequeuniversity.com/rules/axe/4.3/frame-focusable-content?application=RuleDescription) | Ensures <frame> and <iframe> elements with focusable content do not have tabindex=-1 | Serious | cat.keyboard, wcag2a, wcag211 | failure, needs review | | -| [frame-title](https://dequeuniversity.com/rules/axe/4.3/frame-title?application=RuleDescription) | Ensures <iframe> and <frame> elements have an accessible name | Serious | cat.text-alternatives, wcag2a, wcag241, wcag412, section508, section508.22.i | failure, needs review | | -| [html-has-lang](https://dequeuniversity.com/rules/axe/4.3/html-has-lang?application=RuleDescription) | Ensures every HTML document has a lang attribute | Serious | cat.language, wcag2a, wcag311, ACT | failure | [b5c3f8](https://act-rules.github.io/rules/b5c3f8) | -| [html-lang-valid](https://dequeuniversity.com/rules/axe/4.3/html-lang-valid?application=RuleDescription) | Ensures the lang attribute of the <html> element has a valid value | Serious | cat.language, wcag2a, wcag311, ACT | failure | [bf051a](https://act-rules.github.io/rules/bf051a) | -| [html-xml-lang-mismatch](https://dequeuniversity.com/rules/axe/4.3/html-xml-lang-mismatch?application=RuleDescription) | Ensure that HTML elements with both valid lang and xml:lang attributes agree on the base language of the page | Moderate | cat.language, wcag2a, wcag311, ACT | failure | [5b7ae0](https://act-rules.github.io/rules/5b7ae0) | -| [image-alt](https://dequeuniversity.com/rules/axe/4.3/image-alt?application=RuleDescription) | Ensures <img> elements have alternate text or a role of none or presentation | Critical | cat.text-alternatives, wcag2a, wcag111, section508, section508.22.a, ACT | failure, needs review | [23a2a8](https://act-rules.github.io/rules/23a2a8) | -| [input-button-name](https://dequeuniversity.com/rules/axe/4.3/input-button-name?application=RuleDescription) | Ensures input buttons have discernible text | Critical | cat.name-role-value, wcag2a, wcag412, section508, section508.22.a | failure, needs review | | -| [input-image-alt](https://dequeuniversity.com/rules/axe/4.3/input-image-alt?application=RuleDescription) | Ensures <input type="image"> elements have alternate text | Critical | cat.text-alternatives, wcag2a, wcag111, section508, section508.22.a, ACT | failure, needs review | [59796f](https://act-rules.github.io/rules/59796f) | -| [label](https://dequeuniversity.com/rules/axe/4.3/label?application=RuleDescription) | Ensures every form element has a label | Minor, Critical | cat.forms, wcag2a, wcag412, wcag131, section508, section508.22.n, ACT | failure, needs review | [e086e5](https://act-rules.github.io/rules/e086e5), [307n5z](https://act-rules.github.io/rules/307n5z) | -| [link-name](https://dequeuniversity.com/rules/axe/4.3/link-name?application=RuleDescription) | Ensures links have discernible text | Serious | cat.name-role-value, wcag2a, wcag412, wcag244, section508, section508.22.a, ACT | failure, needs review | [c487ae](https://act-rules.github.io/rules/c487ae) | -| [list](https://dequeuniversity.com/rules/axe/4.3/list?application=RuleDescription) | Ensures that lists are structured correctly | Serious | cat.structure, wcag2a, wcag131 | failure | | -| [listitem](https://dequeuniversity.com/rules/axe/4.3/listitem?application=RuleDescription) | Ensures <li> elements are used semantically | Serious | cat.structure, wcag2a, wcag131 | failure | | -| [marquee](https://dequeuniversity.com/rules/axe/4.3/marquee?application=RuleDescription) | Ensures <marquee> elements are not used | Serious | cat.parsing, wcag2a, wcag222 | failure | | -| [meta-refresh](https://dequeuniversity.com/rules/axe/4.3/meta-refresh?application=RuleDescription) | Ensures <meta http-equiv="refresh"> is not used | Critical | cat.time-and-media, wcag2a, wcag221, wcag224, wcag325 | failure | | -| [nested-interactive](https://dequeuniversity.com/rules/axe/4.3/nested-interactive?application=RuleDescription) | Nested interactive controls are not always announced by screen readers or can cause focus problems for screen readers | Serious | cat.keyboard, wcag2a, wcag412 | failure, needs review | [307n5z](https://act-rules.github.io/rules/307n5z) | -| [object-alt](https://dequeuniversity.com/rules/axe/4.3/object-alt?application=RuleDescription) | Ensures <object> elements have alternate text | Serious | cat.text-alternatives, wcag2a, wcag111, section508, section508.22.a | failure, needs review | [8fc3b6](https://act-rules.github.io/rules/8fc3b6) | -| [role-img-alt](https://dequeuniversity.com/rules/axe/4.3/role-img-alt?application=RuleDescription) | Ensures [role='img'] elements have alternate text | Serious | cat.text-alternatives, wcag2a, wcag111, section508, section508.22.a, ACT | failure, needs review | [23a2a8](https://act-rules.github.io/rules/23a2a8) | -| [scrollable-region-focusable](https://dequeuniversity.com/rules/axe/4.3/scrollable-region-focusable?application=RuleDescription) | Ensure elements that have scrollable content are accessible by keyboard | Moderate | cat.keyboard, wcag2a, wcag211 | failure | [0ssw9k](https://act-rules.github.io/rules/0ssw9k) | -| [select-name](https://dequeuniversity.com/rules/axe/4.3/select-name?application=RuleDescription) | Ensures select element has an accessible name | Minor, Critical | cat.forms, wcag2a, wcag412, wcag131, section508, section508.22.n, ACT | failure, needs review | [e086e5](https://act-rules.github.io/rules/e086e5) | -| [server-side-image-map](https://dequeuniversity.com/rules/axe/4.3/server-side-image-map?application=RuleDescription) | Ensures that server-side image maps are not used | Minor | cat.text-alternatives, wcag2a, wcag211, section508, section508.22.f | needs review | | -| [svg-img-alt](https://dequeuniversity.com/rules/axe/4.3/svg-img-alt?application=RuleDescription) | Ensures <svg> elements with an img, graphics-document or graphics-symbol role have an accessible text | Serious | cat.text-alternatives, wcag2a, wcag111, section508, section508.22.a, ACT | failure, needs review | [7d6734](https://act-rules.github.io/rules/7d6734) | -| [td-headers-attr](https://dequeuniversity.com/rules/axe/4.3/td-headers-attr?application=RuleDescription) | Ensure that each cell in a table that uses the headers attribute refers only to other cells in that table | Serious | cat.tables, wcag2a, wcag131, section508, section508.22.g | failure, needs review | [a25f45](https://act-rules.github.io/rules/a25f45) | -| [th-has-data-cells](https://dequeuniversity.com/rules/axe/4.3/th-has-data-cells?application=RuleDescription) | Ensure that <th> elements and elements with role=columnheader/rowheader have data cells they describe | Serious | cat.tables, wcag2a, wcag131, section508, section508.22.g | failure, needs review | [d0f69e](https://act-rules.github.io/rules/d0f69e) | -| [valid-lang](https://dequeuniversity.com/rules/axe/4.3/valid-lang?application=RuleDescription) | Ensures lang attributes have valid values | Serious | cat.language, wcag2aa, wcag312 | failure | | -| [video-caption](https://dequeuniversity.com/rules/axe/4.3/video-caption?application=RuleDescription) | Ensures <video> elements have captions | Critical | cat.text-alternatives, wcag2a, wcag122, section508, section508.22.a | needs review | [eac66b](https://act-rules.github.io/rules/eac66b) | +| Rule ID | Description | Impact | Tags | Issue Type | ACT Rules | +| :------------------------------------------------------------------------------------------------------------------------------- | :---------------------------------------------------------------------------------------------------------------------------------------------------- | :---------------- | :----------------------------------------------------------------------------------------- | :------------------------- | :----------------------------------------------------------------------------------------------------- | +| [area-alt](https://dequeuniversity.com/rules/axe/4.3/area-alt?application=RuleDescription) | Ensures <area> elements of image maps have alternate text | Critical | cat.text-alternatives, wcag2a, wcag111, wcag244, wcag412, section508, section508.22.a, ACT | failure, needs review | [c487ae](https://act-rules.github.io/rules/c487ae) | +| [aria-allowed-attr](https://dequeuniversity.com/rules/axe/4.3/aria-allowed-attr?application=RuleDescription) | Ensures ARIA attributes are allowed for an element's role | Serious, Critical | cat.aria, wcag2a, wcag412 | failure, needs review | [5c01ea](https://act-rules.github.io/rules/5c01ea) | +| [aria-command-name](https://dequeuniversity.com/rules/axe/4.3/aria-command-name?application=RuleDescription) | Ensures every ARIA button, link and menuitem has an accessible name | Serious | cat.aria, wcag2a, wcag412 | failure, needs review | [97a4e1](https://act-rules.github.io/rules/97a4e1) | +| [aria-hidden-body](https://dequeuniversity.com/rules/axe/4.3/aria-hidden-body?application=RuleDescription) | Ensures aria-hidden='true' is not present on the document body. | Critical | cat.aria, wcag2a, wcag412 | failure | | +| [aria-hidden-focus](https://dequeuniversity.com/rules/axe/4.3/aria-hidden-focus?application=RuleDescription) | Ensures aria-hidden elements do not contain focusable elements | Serious | cat.name-role-value, wcag2a, wcag412, wcag131 | failure, needs review | [6cfa84](https://act-rules.github.io/rules/6cfa84) | +| [aria-input-field-name](https://dequeuniversity.com/rules/axe/4.3/aria-input-field-name?application=RuleDescription) | Ensures every ARIA input field has an accessible name | Moderate, Serious | cat.aria, wcag2a, wcag412, ACT | failure, needs review | [e086e5](https://act-rules.github.io/rules/e086e5) | +| [aria-meter-name](https://dequeuniversity.com/rules/axe/4.3/aria-meter-name?application=RuleDescription) | Ensures every ARIA meter node has an accessible name | Serious | cat.aria, wcag2a, wcag111 | failure, needs review | | +| [aria-progressbar-name](https://dequeuniversity.com/rules/axe/4.3/aria-progressbar-name?application=RuleDescription) | Ensures every ARIA progressbar node has an accessible name | Serious | cat.aria, wcag2a, wcag111 | failure, needs review | | +| [aria-required-attr](https://dequeuniversity.com/rules/axe/4.3/aria-required-attr?application=RuleDescription) | Ensures elements with ARIA roles have all required ARIA attributes | Critical | cat.aria, wcag2a, wcag412 | failure | | +| [aria-required-children](https://dequeuniversity.com/rules/axe/4.3/aria-required-children?application=RuleDescription) | Ensures elements with an ARIA role that require child roles contain them | Critical | cat.aria, wcag2a, wcag131 | failure, needs review | [ff89c9](https://act-rules.github.io/rules/ff89c9) | +| [aria-required-parent](https://dequeuniversity.com/rules/axe/4.3/aria-required-parent?application=RuleDescription) | Ensures elements with an ARIA role that require parent roles are contained by them | Critical | cat.aria, wcag2a, wcag131 | failure | [bc4a75](https://act-rules.github.io/rules/bc4a75), [ff89c9](https://act-rules.github.io/rules/ff89c9) | +| [aria-roledescription](https://dequeuniversity.com/rules/axe/4.3/aria-roledescription?application=RuleDescription) | Ensure aria-roledescription is only used on elements with an implicit or explicit role | Serious | cat.aria, wcag2a, wcag412 | failure, needs review | | +| [aria-roles](https://dequeuniversity.com/rules/axe/4.3/aria-roles?application=RuleDescription) | Ensures all elements with a role attribute use a valid value | Serious, Critical | cat.aria, wcag2a, wcag412 | failure, needs review | | +| [aria-toggle-field-name](https://dequeuniversity.com/rules/axe/4.3/aria-toggle-field-name?application=RuleDescription) | Ensures every ARIA toggle field has an accessible name | Moderate, Serious | cat.aria, wcag2a, wcag412, ACT | failure, needs review | | +| [aria-tooltip-name](https://dequeuniversity.com/rules/axe/4.3/aria-tooltip-name?application=RuleDescription) | Ensures every ARIA tooltip node has an accessible name | Serious | cat.aria, wcag2a, wcag412 | failure, needs review | | +| [aria-valid-attr-value](https://dequeuniversity.com/rules/axe/4.3/aria-valid-attr-value?application=RuleDescription) | Ensures all ARIA attributes have valid values | Serious, Critical | cat.aria, wcag2a, wcag412 | failure, needs review | [5c01ea](https://act-rules.github.io/rules/5c01ea), [c487ae](https://act-rules.github.io/rules/c487ae) | +| [aria-valid-attr](https://dequeuniversity.com/rules/axe/4.3/aria-valid-attr?application=RuleDescription) | Ensures attributes that begin with aria- are valid ARIA attributes | Critical | cat.aria, wcag2a, wcag412 | failure | | +| [audio-caption](https://dequeuniversity.com/rules/axe/4.3/audio-caption?application=RuleDescription) | Ensures <audio> elements have captions | Critical | cat.time-and-media, wcag2a, wcag121, section508, section508.22.a | needs review | [c3232f](https://act-rules.github.io/rules/c3232f), [e7aa44](https://act-rules.github.io/rules/e7aa44) | +| [blink](https://dequeuniversity.com/rules/axe/4.3/blink?application=RuleDescription) | Ensures <blink> elements are not used | Serious | cat.time-and-media, wcag2a, wcag222, section508, section508.22.j | failure | | +| [button-name](https://dequeuniversity.com/rules/axe/4.3/button-name?application=RuleDescription) | Ensures buttons have discernible text | Critical | cat.name-role-value, wcag2a, wcag412, section508, section508.22.a, ACT | failure, needs review | [97a4e1](https://act-rules.github.io/rules/97a4e1), [m6b1q3](https://act-rules.github.io/rules/m6b1q3) | +| [bypass](https://dequeuniversity.com/rules/axe/4.3/bypass?application=RuleDescription) | Ensures each page has at least one mechanism for a user to bypass navigation and jump straight to the content | Serious | cat.keyboard, wcag2a, wcag241, section508, section508.22.o | needs review | | +| [color-contrast](https://dequeuniversity.com/rules/axe/4.3/color-contrast?application=RuleDescription) | Ensures the contrast between foreground and background colors meets WCAG 2 AA contrast ratio thresholds | Serious | cat.color, wcag2aa, wcag143 | failure, needs review | | +| [definition-list](https://dequeuniversity.com/rules/axe/4.3/definition-list?application=RuleDescription) | Ensures <dl> elements are structured correctly | Serious | cat.structure, wcag2a, wcag131 | failure | | +| [dlitem](https://dequeuniversity.com/rules/axe/4.3/dlitem?application=RuleDescription) | Ensures <dt> and <dd> elements are contained by a <dl> | Serious | cat.structure, wcag2a, wcag131 | failure | | +| [document-title](https://dequeuniversity.com/rules/axe/4.3/document-title?application=RuleDescription) | Ensures each HTML document contains a non-empty <title> element | Serious | cat.text-alternatives, wcag2a, wcag242, ACT | failure | [2779a5](https://act-rules.github.io/rules/2779a5) | +| [duplicate-id-active](https://dequeuniversity.com/rules/axe/4.3/duplicate-id-active?application=RuleDescription) | Ensures every id attribute value of active elements is unique | Serious | cat.parsing, wcag2a, wcag411 | failure | | +| [duplicate-id-aria](https://dequeuniversity.com/rules/axe/4.3/duplicate-id-aria?application=RuleDescription) | Ensures every id attribute value used in ARIA and in labels is unique | Critical | cat.parsing, wcag2a, wcag411 | failure | [3ea0c8](https://act-rules.github.io/rules/3ea0c8) | +| [duplicate-id](https://dequeuniversity.com/rules/axe/4.3/duplicate-id?application=RuleDescription) | Ensures every id attribute value is unique | Minor | cat.parsing, wcag2a, wcag411 | failure | | +| [form-field-multiple-labels](https://dequeuniversity.com/rules/axe/4.3/form-field-multiple-labels?application=RuleDescription) | Ensures form field does not have multiple label elements | Moderate | cat.forms, wcag2a, wcag332 | needs review | | +| [frame-focusable-content](https://dequeuniversity.com/rules/axe/4.3/frame-focusable-content?application=RuleDescription) | Ensures <frame> and <iframe> elements with focusable content do not have tabindex=-1 | Serious | cat.keyboard, wcag2a, wcag211 | failure, needs review | | +| [frame-title](https://dequeuniversity.com/rules/axe/4.3/frame-title?application=RuleDescription) | Ensures <iframe> and <frame> elements have an accessible name | Serious | cat.text-alternatives, wcag2a, wcag241, wcag412, section508, section508.22.i | failure, needs review | | +| [html-has-lang](https://dequeuniversity.com/rules/axe/4.3/html-has-lang?application=RuleDescription) | Ensures every HTML document has a lang attribute | Serious | cat.language, wcag2a, wcag311, ACT | failure | [b5c3f8](https://act-rules.github.io/rules/b5c3f8) | +| [html-lang-valid](https://dequeuniversity.com/rules/axe/4.3/html-lang-valid?application=RuleDescription) | Ensures the lang attribute of the <html> element has a valid value | Serious | cat.language, wcag2a, wcag311, ACT | failure | [bf051a](https://act-rules.github.io/rules/bf051a) | +| [html-xml-lang-mismatch](https://dequeuniversity.com/rules/axe/4.3/html-xml-lang-mismatch?application=RuleDescription) | Ensure that HTML elements with both valid lang and xml:lang attributes agree on the base language of the page | Moderate | cat.language, wcag2a, wcag311, ACT | failure | [5b7ae0](https://act-rules.github.io/rules/5b7ae0) | +| [image-alt](https://dequeuniversity.com/rules/axe/4.3/image-alt?application=RuleDescription) | Ensures <img> elements have alternate text or a role of none or presentation | Critical | cat.text-alternatives, wcag2a, wcag111, section508, section508.22.a, ACT | failure, needs review | [23a2a8](https://act-rules.github.io/rules/23a2a8) | +| [input-button-name](https://dequeuniversity.com/rules/axe/4.3/input-button-name?application=RuleDescription) | Ensures input buttons have discernible text | Critical | cat.name-role-value, wcag2a, wcag412, section508, section508.22.a | failure, needs review | | +| [input-image-alt](https://dequeuniversity.com/rules/axe/4.3/input-image-alt?application=RuleDescription) | Ensures <input type="image"> elements have alternate text | Critical | cat.text-alternatives, wcag2a, wcag111, section508, section508.22.a, ACT | failure, needs review | [59796f](https://act-rules.github.io/rules/59796f) | +| [label](https://dequeuniversity.com/rules/axe/4.3/label?application=RuleDescription) | Ensures every form element has a label | Minor, Critical | cat.forms, wcag2a, wcag412, wcag131, section508, section508.22.n, ACT | failure, needs review | [e086e5](https://act-rules.github.io/rules/e086e5), [307n5z](https://act-rules.github.io/rules/307n5z) | +| [link-name](https://dequeuniversity.com/rules/axe/4.3/link-name?application=RuleDescription) | Ensures links have discernible text | Serious | cat.name-role-value, wcag2a, wcag412, wcag244, section508, section508.22.a, ACT | failure, needs review | [c487ae](https://act-rules.github.io/rules/c487ae) | +| [list](https://dequeuniversity.com/rules/axe/4.3/list?application=RuleDescription) | Ensures that lists are structured correctly | Serious | cat.structure, wcag2a, wcag131 | failure | | +| [listitem](https://dequeuniversity.com/rules/axe/4.3/listitem?application=RuleDescription) | Ensures <li> elements are used semantically | Serious | cat.structure, wcag2a, wcag131 | failure | | +| [marquee](https://dequeuniversity.com/rules/axe/4.3/marquee?application=RuleDescription) | Ensures <marquee> elements are not used | Serious | cat.parsing, wcag2a, wcag222 | failure | | +| [meta-refresh](https://dequeuniversity.com/rules/axe/4.3/meta-refresh?application=RuleDescription) | Ensures <meta http-equiv="refresh"> is not used | Critical | cat.time-and-media, wcag2a, wcag221, wcag224, wcag325 | failure | | +| [nested-interactive](https://dequeuniversity.com/rules/axe/4.3/nested-interactive?application=RuleDescription) | Ensures interactive controls are not nested as they are not always announced by screen readers or can cause focus problems for assistive technologies | Serious | cat.keyboard, wcag2a, wcag412 | failure, needs review | [307n5z](https://act-rules.github.io/rules/307n5z) | +| [object-alt](https://dequeuniversity.com/rules/axe/4.3/object-alt?application=RuleDescription) | Ensures <object> elements have alternate text | Serious | cat.text-alternatives, wcag2a, wcag111, section508, section508.22.a | failure, needs review | [8fc3b6](https://act-rules.github.io/rules/8fc3b6) | +| [role-img-alt](https://dequeuniversity.com/rules/axe/4.3/role-img-alt?application=RuleDescription) | Ensures [role='img'] elements have alternate text | Serious | cat.text-alternatives, wcag2a, wcag111, section508, section508.22.a, ACT | failure, needs review | [23a2a8](https://act-rules.github.io/rules/23a2a8) | +| [scrollable-region-focusable](https://dequeuniversity.com/rules/axe/4.3/scrollable-region-focusable?application=RuleDescription) | Ensure elements that have scrollable content are accessible by keyboard | Moderate | cat.keyboard, wcag2a, wcag211 | failure | [0ssw9k](https://act-rules.github.io/rules/0ssw9k) | +| [select-name](https://dequeuniversity.com/rules/axe/4.3/select-name?application=RuleDescription) | Ensures select element has an accessible name | Minor, Critical | cat.forms, wcag2a, wcag412, wcag131, section508, section508.22.n, ACT | failure, needs review | [e086e5](https://act-rules.github.io/rules/e086e5) | +| [server-side-image-map](https://dequeuniversity.com/rules/axe/4.3/server-side-image-map?application=RuleDescription) | Ensures that server-side image maps are not used | Minor | cat.text-alternatives, wcag2a, wcag211, section508, section508.22.f | needs review | | +| [svg-img-alt](https://dequeuniversity.com/rules/axe/4.3/svg-img-alt?application=RuleDescription) | Ensures <svg> elements with an img, graphics-document or graphics-symbol role have an accessible text | Serious | cat.text-alternatives, wcag2a, wcag111, section508, section508.22.a, ACT | failure, needs review | [7d6734](https://act-rules.github.io/rules/7d6734) | +| [td-headers-attr](https://dequeuniversity.com/rules/axe/4.3/td-headers-attr?application=RuleDescription) | Ensure that each cell in a table that uses the headers attribute refers only to other cells in that table | Serious | cat.tables, wcag2a, wcag131, section508, section508.22.g | failure, needs review | [a25f45](https://act-rules.github.io/rules/a25f45) | +| [th-has-data-cells](https://dequeuniversity.com/rules/axe/4.3/th-has-data-cells?application=RuleDescription) | Ensure that <th> elements and elements with role=columnheader/rowheader have data cells they describe | Serious | cat.tables, wcag2a, wcag131, section508, section508.22.g | failure, needs review | [d0f69e](https://act-rules.github.io/rules/d0f69e) | +| [valid-lang](https://dequeuniversity.com/rules/axe/4.3/valid-lang?application=RuleDescription) | Ensures lang attributes have valid values | Serious | cat.language, wcag2aa, wcag312 | failure | | +| [video-caption](https://dequeuniversity.com/rules/axe/4.3/video-caption?application=RuleDescription) | Ensures <video> elements have captions | Critical | cat.text-alternatives, wcag2a, wcag122, section508, section508.22.a | needs review | [eac66b](https://act-rules.github.io/rules/eac66b) | ## WCAG 2.1 Level A & AA Rules