WCAG Master Guide - Accessibility Checker

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#	Description	Disabilities Affected	Accessibility Guidelines & Standards
1	Landmarks Should Have a Unique Role or role/label/title (i.e. accessible name) Combination	Blind Hearing	WCAG 2.1 Level A
2	Ensure the Scope Attribute is Used Correctly On Tables	Blind Hearing Mobility	WCAG 2.1 Level A
3	Ensure the Order of Headings is Semantically Correct	Blind Hearing Mobility	WCAG 2.1 Level A
4	Ensure the Main Landmark Is At the Top Level	Blind Hearing Mobility	WCAG 2.1 Level A
5	Ensure the lang Attribute of the <html> Element Has a Valid Value	Blind Hearing	WCAG 2.1 Level A
6	Ensure the Document Has At Most One Main Landmark	Blind Hearing Mobility	WCAG 2.1 Level A
7	Ensure the Document Has At Most One contentinfo Landmark	Blind Hearing	WCAG 2.1 Level A
8	Ensure the Document Has At Most One Banner Landmark	Blind Hearing	WCAG 2.1 Level A
9	Ensure the Contrast Between Foreground and Background Colors Meets WCAG 2 AAA Enhanced Contrast Ratio Thresholds	Low vision	WCAG 2.1 Level AAA
10	Ensure the Contrast Between Foreground and Background Colors Meets WCAG 2 AA Minimum Contrast Ratio Thresholds	Low vision	WCAG 2.1 Level AA
11	Ensure the contentinfo Landmark Is At the Top Level	Blind Hearing	WCAG 2.1 Level A
12	Ensure the Complementary Landmark or Aside Is At the Top Level	Blind Hearing Mobility	WCAG 2.1 Level A
13	Ensure the Banner Landmark Is At the Top Level	Blind Hearing	WCAG 2.1 Level A
14	Ensure That Server-Side Image Maps Are Not Used	Blind Hearing Mobility	WCAG 2.1 Level A
15	Ensure that Lists Are Structured Correctly	Blind Hearing	WCAG 2.1 Level A
16	Ensure That Every Form Element Has a Visible Label and Is Not Solely Labeled Using Hidden Labels, or the Title or aria-describedby Attributes	Blind Hearing Mobility	WCAG 2.1 Level A
17	Ensure Table Headers Have Discernible Text	Blind Low vision	WCAG 2.1 Level A
18	Ensure tabindex Attribute Values Are Not Greater Than 0	Blind Hearing Mobility	WCAG 2.1 Level A
19	Ensure Select Element Has An Accessible Name	Blind Hearing Mobility	WCAG 2.1 Level A
20	Ensures role=text Is Used On Elements with No Focusable Descendants	Blind Mobility	WCAG 2.1 Level A
21	Ensure Role Attribute Has an Appropriate Value for the Element	Blind Hearing Mobility	WCAG 2.1 Level A
22	Ensure Links Have Discernible Text	Blind Hearing Mobility	WCAG 2.1 Level A
23	Ensure lang Attributes Have Valid Values	Blind Hearing	WCAG 2.1 Level AA
24	Ensure Interactive Controls Are Not Nested As They Are Not Always Announced By Screen Readers or Can Cause Focus Problems for Assistive Technologies	Blind Mobility	WCAG 2.1 Level A
25	Ensure Input Buttons Have Discernible Text	Blind Hearing	WCAG 2.1 Level A
26	Ensure Headings Have Discernible Text	Blind Hearing Mobility	WCAG 2.1 Level A
27	Ensure Form Field Does Not Have Multiple Label Elements	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
28	Ensure Every id Attribute Value Used In ARIA and In Labels Is Unique	Blind Hearing	WCAG 2.1 Level A
29	Ensure Every HTML Document Has a lang Attribute	Blind Hearing	WCAG 2.1 Level A
30	Ensure Every Form Element Has a Label	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
31	Ensure Every ARIA treeitem Node Has An Accessible Name	Blind Low vision Mobility	WCAG 2.1 Level A
32	Ensures Every ARIA Tooltip Node Has an Accessible Name	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
33	Ensure Every ARIA Toggle Field Has an Accessible Name	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
34	Ensures Every ARIA Progressbar Node Has an Accessible Name	Blind Low vision Mobility	WCAG 2.1 Level A
35	Ensures Every ARIA Meter Node Has an Accessible Name	Blind Low vision Mobility	WCAG 2.1 Level A
36	Ensures Every ARIA Input Field Has an Accessible Name	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
37	Ensure Every ARIA Dialog and alertdialog Node Has an Accessible Name	Blind Hearing Mobility	WCAG 2.1 Level A
38	Ensures Every ARIA Button, Link, and Menuitem Has an Accessible Name	Blind Low vision Mobility	WCAG 2.1 Level A
39	Ensure Every accesskey Attribute Value Is Unique	Blind Low vision Mobility	WCAG 2.1 Level A
40	Ensures Elements with ARIA roles Have All Required ARIA Attributes	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
41	Ensures Elements With an ARIA Role That Requires Parent Roles Are Contained By Them	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
42	Ensures Elements With an ARIA Role that Require Child Roles Contain Them	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
43	Ensures Elements Do Not Use Deprecated Roles	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
44	Ensure Each Page Has at Least One Mechanism for a User to Bypass Navigation and Jump Straight to the Content	Blind Hearing	WCAG 2.1 Level A
45	Ensure Each HTML Document Contains a Non-Empty <title> Element	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
46	Ensure Buttons Have Discernible Text	Blind Hearing	WCAG 2.1 Level A
47	Ensures Attributes That Begin with aria- Are Valid ARIA Attributes	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
48	Ensures aria-hidden=true Is Not Present on the Document Body	Blind Low vision	WCAG 2.1 Level A
49	Ensures aria-hidden Elements are Not Focusable Nor Contain Focusable Elements	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
50	Ensures ARIA Attributes Are Used as Described In the Specification of the Element’s Role	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
51	Ensures ARIA Attributes Are Not Prohibited for An Elements Role	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
52	Ensures an Elements Role Supports Its ARIA Attributes	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
53	Ensure All Page Content Is Contained By Landmarks	Blind Hearing Mobility	WCAG 2.1 Level A
54	Ensures All Elements With a Role Attribute Use a Valid Value	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
55	Ensure <video> or <audio> Elements Do Not Autoplay Audio for More Than 3 seconds Without a Control Mechanism to Stop or Mute the Audio	Blind Hearing	WCAG 2.1 Level A
56	Ensure <video> Elements Have Captions	Hearing	WCAG 2.1 Level A
57	Ensure <svg> Elements with an img, graphics-document or graphics-symbol Role Have an Accessible Text	Blind Hearing Mobility	WCAG 2.1 Level A
58	Ensure <object> Elements Have Alternate Text	Blind Hearing	WCAG 2.1 Level A
59	Ensures <meta name="viewport"> Does Not Disable Text Scaling and Zooming	Low vision	WCAG 2.1 Level AA
60	Ensure <meta name="viewport"> Can Scale a Significant Amount	Low vision	WCAG 2.1 Level A
61	Ensures <meta http-equiv="refresh"> Is Not Used for Delayed Refresh	Blind Hearing Mobility	WCAG 2.1 Level A
62	Ensure <meta http-equiv="refresh"> Is Not Used for Delayed Refresh	Blind Hearing Mobility	WCAG 2.1 Level AAA
63	Ensure <marquee> Elements Are Not Used	Low vision Mobility	WCAG 2.1 Level A
64	Ensure <li> Elements Are Used Semantically	Blind Hearing Mobility	WCAG 2.1 Level A
65	Ensure <input type="image"> Elements Have Alternate Text	Blind Hearing Mobility	WCAG 2.1 Level A
66	Ensure <img> Elements Have Alternate Text or a Role of None or Presentation	Blind Hearing	WCAG 2.1 Level A
67	Ensure <iframe> and <frame> Elements Have An Accessible Name	Blind Hearing Mobility	WCAG 2.1 Level A
68	Ensure <iframe> and <frame> Elements Contain the axe-core Script	Blind Hearing	WCAG 2.1 Level A
69	Ensure <iframe> and <frame> Elements Contain a Unique Title Attribute	Blind Hearing Mobility	WCAG 2.1 Level A
70	Ensure <dt> and <dd> Elements Are Contained By a <dl>	Blind Hearing Mobility	WCAG 2.1 Level A
71	Ensure <dl> Elements Are Structured Correctly	Blind Hearing	WCAG 2.1 Level A
72	Ensures <blink> Elements Are Not Used	Low vision Hearing Mobility	WCAG 2.1 Level A
73	Ensures <area> Elements of Image Maps Have Alternate Text	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
74	Ensure [role=img] Elements Have Alternate Text	Blind Hearing	WCAG 2.1 Level A
75	Ensure Touch Targets Have Sufficient Size and Space	Blind Low vision Mobility	WCAG 2.1 Level AA
76	Ensure the Autocomplete Attribute Is Correct and Suitable for the Form Field	Blind Low vision Hearing Mobility	WCAG 2.1 Level AA
77	Ensure the <caption> Element Does Not Contain the Same Text as the Summary Attribute	Blind Hearing	WCAG 2.1 Level A
78	Ensure That the Page, or At Least One of Its Frames Contains a Level-One Heading	Blind Low vision Hearing	WCAG 2.1 Level A
79	Ensure That Text Spacing Set Through Style Attributes Can Be Adjusted with Custom Stylesheets	Blind Low vision Hearing Mobility	WCAG 2.1 Level AA
80	Ensure That Links With the Same Accessible Name Serve a Similar Purpose	Blind Hearing	WCAG 2.1 Level AAA
81	Ensure That HTML Elements With Both Valid lang and xml:lang Attributes Agree On the Base Language of the Page	Blind Hearing	WCAG 2.1 Level A
82	Ensure that Each Cell In a Table That Uses the Headers Attribute Refers Only to Other Cells In That Table	Blind Hearing	WCAG 2.1 Level A
83	Ensure That <th> Elements and Elements With role=columnheader/rowheader Have Data Cells They Describe	Blind Hearing	WCAG 2.1 Level A
84	Ensure Links Are Distinguished From Surrounding Text In a Way That Does Not Rely on Color	Low vision	WCAG 2.1 Level A
85	Ensure Image Alternative Is Not Repeated as Text	Blind Hearing	WCAG 2.1 Level A
86	Ensure Elements That Have Scrollable Content Are Accessible By Keyboard	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
87	Ensure aria-braillelabel and aria-brailleroledescription Have a Bon-Braille Equivalent	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
88	Ensure All Skip Links Have a Focusable Target	Blind Low vision Hearing Mobility	WCAG 2.1 Level A
89	Ensure <frame> and <iframe> Elements With Focusable Content Do Not Have tabindex=-1	Blind Mobility	WCAG 2.1 Level A
90	Ensure All ARIA Attributes Have Valid Values	Blind Low vision Mobility	WCAG 2.1 Level A
91	Elements Marked as Presentational Should Not Have Global ARIA or tabindex to Ensure All Screen Readers Ignore Them	Blind Low vision Mobility	WCAG 2.1 Level AA

WCAG Masterguide