Accessibility

· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Checks

4 PASS 5 REVIEW 4 FIX

Heading Hierarchy

Action

53 headings, 2 skip(s)

FIX

53 headings, 2 skip(s)

No H1 heading found

Every page should have one H1 that describes the page content.

Heading level skipped: H2 → H4 (missing H3)

Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.

Heading level skipped: H2 → H4 (missing H3)

Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.

H2 We are the non-profit organization behind Wikipedia.
H3 People
H3 Reports
H3 Careers
H3 Frequently asked questions
H2 Our technology supports the backbone of knowledge on the internet.
H3 Wikimedia projects
H3 Technology
H3 Public policy
H3 Closing knowledge gaps
H2 The more people take part, the better the internet’s knowledge gets.
H3 Donate
H3 Volunteer
H3 Advocate
H2 Stay up to date on our efforts to protect free knowledge.
H4 “Cinematic intensity”: The winners of Wiki Loves Earth 2025 skipped
H4 ICFJ and Wikimedia Foundation Seek Applications for Open the Knowledge Journalism Awards in Africa
H4 Wikipedia celebrates 25 years of knowledge at its best
H2 We fundopensupport protect fund opensupportprotecthuman knowledge
H2 Celebrate Wikipedia’s 25th birthday
H2 By the numbers
H2 Our work
H4 “Cinematic intensity”: The winners of Wiki Loves Earth 2025 skipped
H4 ICFJ and Wikimedia Foundation Seek Applications for Open the Knowledge Journalism Awards in Africa
H4 Wikipedia celebrates 25 years of knowledge at its best
H4 Wikimedia Foundation Welcomes Two New Board Trustees
H4 Wikimedia Foundation appoints Bernadette Meehan as Chief Executive Officer
H4 Announcing Wikipedia’s top 25 most-read articles of 2025
H4 How does the Wikimedia Foundation use donations to Wikipedia?
H4 How is Wikipedia funded?
H4 The art of disagreement: How Wikipedia navigates disputes
H2 Built for people, by people
H3 Taufik Rosman
H3 Siobhan Leachman
H3 Armine Aghayan-Flisch
H3 Donatien Kangah
H3 Wilfredo Rodríguez
H3 Ellie Méndez
H3 Mónica Paola Bonilla-Parra
H3 Alberto Leoncio
H3 Alaa Najjar
H3 Nkem Osuigwe
H3 Ananya Mondal
H3 Netha Hussain
H3 Rosie Stephenson-Goodknight
H3 Andrew Lih
H2 Help expandhuman knowledge
H2 Donate
H2 Edit
H2 Participate
H2 Advocate
H2 Subscribe for news
H2 Photo credits

Every page should have one H1 that describes the page content.

Why this matters

No H1 means screen-reader users can't identify the page's primary topic, and Google's content-extraction degrades.

Learn more ▾

The H1 is the document title for assistive tech and a strong signal to search engines about page topic. Pages without one force screen readers to fall back to the <title> attribute or page chrome. Add a single H1 that names the page's primary subject.

Source: WCAG 2.4.6 / Google Search Central

Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.

Why this matters

Skipping heading levels breaks the document outline — screen-reader users lose track of section nesting.

Learn more ▾

Screen reader users navigate by jumping between headings (H1 → H2 → H3). Skipping (H1 → H3) breaks the sense of hierarchy. Use sequential levels even if you don't like the default styling — restyle with CSS instead. WCAG 1.3.1 (Info and Relationships) treats this as an A failure.

Source: WCAG 2.1 SC 1.3.1 / W3C WAI

Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.

Why this matters

Skipping heading levels breaks the document outline — screen-reader users lose track of section nesting.

Learn more ▾

Source: WCAG 2.1 SC 1.3.1 / W3C WAI

Web Manifest

Action

Not found

FIX

Not found

No web manifest found

No manifest at standard paths (/manifest.json, /site.webmanifest). A manifest is optional but enables PWA features like home screen installation and standalone display.

No web manifest found.

Print Stylesheet

Action

No print styles

FIX

No print styles

No print-specific styles detected

When users print this page, they get the screen layout including navigation and non-essential elements. Add @media print rules to hide navigation and optimize layout for paper.

Print Stylesheet No Print Styles

Print stylesheet Not found ✗Inline @media print Not detected ✗

Form Accessibility

Action

3 of 8 controls have issues

REVIEW

3 of 8 controls have issues

2 control(s) without accessible label

Form controls need a <label>, aria-label, or aria-labelledby for screen readers.

Got: <input type="text" name="mailchimp_sf_alt_email">; <input type="submit" name="mc_signup_submit" id="mc_signup_submit_c69c060af4_6">

1 control(s) rely on placeholder only

Placeholder text disappears on focus and is not a reliable label.

Got: <input type="number" name="preSelect">

5 control(s) properly labeled

8 controls

5 labeled

1 placeholder only

2 unlabeled

Control	Type	Label	Method
#wp-block-search__input-1	search	Search	for/id
frequency	radio		none
frequency	radio		none
#mc_mv_EMAIL_4	text	Email Address*	for/id
#mc_mv_OPTIN_5_0	radio	Yes, I would like to receive updates, news, and promotional emails from the Wikimedia Foundation. I understand I can unsubscribe at any time.	for/id
preSelect	number	(2.75)	placeholder only
mailchimp_sf_alt_email	text	(none)	none
#mc_signup_submit_c69c060af4_6	submit	(none)	none

Form controls need a <label>, aria-label, or aria-labelledby for screen readers.

Why this matters

Form controls without labels — assistive tech announces 'edit text' with no context; users can't complete forms.

Source: WCAG 2.1 SC 3.3.2

Placeholder text disappears on focus and is not a reliable label.

Why this matters

Placeholder-only labels disappear when the user starts typing — they must remember what the field was for.

Learn more ▾

Placeholders are NOT labels. They vanish on input, fail color contrast checks (most are gray), and don't satisfy WCAG SC 3.3.2. Always use a real <label> alongside (or aria-labelledby).

Source: WCAG 2.1 SC 3.3.2 / Nielsen Norman

404 Error Page

HTTP 404, custom page

REVIEW

HTTP 404, custom page

Correct 404 status code returned

Got: HTTP 404

Custom styled 404 page

Navigation links present on 404 page

Homepage link present on 404 page

404 Page Quality ✓ Custom 404 Page

Status Code HTTP 404 ✓Page Title Page not found – Wikimedia Foundation ✓Custom Styling ✓Navigation ✓Homepage Link ✓Search Form ✗

Favicon & Branding

4 icon(s) detected

REVIEW

4 icon(s) detected

favicon.ico present at site root

HTML icon links detected

Apple touch icon present

Multiple icon sizes detected

✓ favicon.ico Present

✓ PNG Icons Present

✓ Apple Touch Present

✗ SVG Favicon Missing

✗ Manifest Icons Missing

✓ Multiple Sizes Present

Dark Mode Support

Dark mode detected

REVIEW

Dark mode detected

prefers-color-scheme CSS detected in inline styles

Detection limited to meta tags and inline styles

External CSS files may contain prefers-color-scheme rules not visible to this scan.

Dark Mode✓ Dark Mode Supported

color-scheme meta Not set ✗Dark theme-color Not set ✗CSS indicators Detected ✓

Detection limited to meta tags and inline styles.

Color Contrast (Screenshot)

Action

20 text elements analyzed, 11 fail WCAG AA

REVIEW

Analyzes text contrast against the actual rendered page, including background images, gradients, and overlays that CSS-based tools cannot detect.

9 pass 11 fail WCAG AA

h2 The more people take part, the better th…

2.94:1

#000000

#0C57A8

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Stay up to date on our efforts to protec…

2.94:1

#000000

#0C57A8

needs 3.0:1 (large text)

24px · bottom of viewport

h2 human knowledge

2.94:1

#000000

#0C57A8

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Celebrate Wikipedia’s 25th birthday

2.94:1

#000000

#0C57A8

needs 3.0:1 (large text)

24px · bottom of viewport · over background image/gradient

h2 By the numbers

2.94:1

#000000

#0C57A8

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Our work

2.94:1

#000000

#0C57A8

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Built for people, by people

2.94:1

#000000

#0C57A8

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Help expand

2.94:1

#000000

#0C57A8

needs 3.0:1 (large text)

24px · bottom of viewport

h2 human knowledge

2.94:1

#000000

#0C57A8

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Subscribe for news

2.94:1

#000000

#0C57A8

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Photo credits

2.94:1

#000000

#0C57A8

needs 3.0:1 (large text)

24px · bottom of viewport

1 contrast failures on background images/gradients

These failures are invisible to CSS-based accessibility tools like Lighthouse. The text may be fine on a solid background, but fails when rendered over an image or gradient.

Show all checked elements (20)

Element	Ratio	Required	FG	BG	Result
h2 We are the non-profi…	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 Our technology suppo…	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 The more people take…	2.94:1	3.0:1	#000000	#0C57A8	Fail
h2 Stay up to date on o…	2.94:1	3.0:1	#000000	#0C57A8	Fail
h2 human knowledge	2.94:1	3.0:1	#000000	#0C57A8	Fail
h2 Celebrate Wikipedia�…	2.94:1	3.0:1	#000000	#0C57A8	Fail
h2 By the numbers	2.94:1	3.0:1	#000000	#0C57A8	Fail
h2 Our work	2.94:1	3.0:1	#000000	#0C57A8	Fail
h2 Built for people, by…	2.94:1	3.0:1	#000000	#0C57A8	Fail
h2 Help expand	2.94:1	3.0:1	#000000	#0C57A8	Fail
h2 human knowledge	2.94:1	3.0:1	#000000	#0C57A8	Fail
h2 Subscribe for news	2.94:1	3.0:1	#000000	#0C57A8	Fail
h2 Photo credits	2.94:1	3.0:1	#000000	#0C57A8	Fail
title Home – Wikimedia F…	21.00:1	4.5:1	#000000	#FFFFFF	Pass
a Skip to content	21.00:1	4.5:1	#000000	#FFFFFF	Pass
button Who we are	21.00:1	4.5:1	#000000	#FFFFFF	Pass
a Get to know us	21.00:1	4.5:1	#000000	#FFFFFF	Pass
a People	21.00:1	4.5:1	#000000	#FFFFFF	Pass
a Board of Trustees	21.00:1	4.5:1	#000000	#FFFFFF	Pass
a Executive team	21.00:1	4.5:1	#000000	#FFFFFF	Pass

Methodology: The top 20 text elements by font size were checked. Background color was sampled from the desktop screenshot using a 5-point pattern. WCAG 2.1 AA requires 4.5:1 for normal text and 3:1 for large text.

A+

Landmark Structure

12 landmarks

PASS

12 landmarks

<main> landmark present

6 <nav> landmark(s) found

All <nav> elements are properly labeled

Skip navigation link present

Page Structure — as a screen reader sees it

A+

Alt Text Quality

All 62 images OK

PASS

All 62 images OK

56 decorative image(s) correctly marked

6 image(s) with good alt text

62 images 6 good alt text 56 decorative

All images have appropriate alt text.

Link & Button Quality

159 links, 22 buttons — all OK

PASS

159 links, 22 buttons — all OK

50 link(s) open in new tab without warning

Add '(opens in new tab)' to link text or aria-label.

Got: /news/2024/11/25/7-reasons-you-should-donate-to-wikipedia/; https://commons.wikimedia.org/wiki/File:Bothrops_bilineatus_PN_Carrasco.jpg; https://creativecommons.org/licenses/by-sa/4.0/; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Meehan-12032025CK_0312.jpg; https://creativecommons.org/publicdomain/zero/1.0/; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Wikipedia-blog-series-image-3.jpg; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Wikipedia-blog-series-image-2.jpg (+40 more)

109 link(s) with descriptive text

159 links

0 empty

0 generic text

50 new tab

0 empty buttons

Element	Text	Issue	Suggested Fix
/news/2024/11/25/7-reasons-you-should-do…	Why donate?	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	Bothrops bilineatus PN Carrasc…	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	Meehan-12032025CK 0312	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/publicdomain…	CC0 1.0	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	Wikipedia-blog-series-image-3	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	Wikipedia-blog-series-image-2	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	Un pecheur rentre au port au l…	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	WikiSG Headshots Taufik	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	Siobhan Leachman at BioBlitzWB…	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/publicdomain…	CC0 1.0	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	Armine Aghayan-Flisch	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	Le Burex de WikiCiv	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	The Photographer User in Humbo…	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/publicdomain…	CC0 1.0	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	Equipo de Wikipedistas en El S…	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	Monica Bonilla	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	Wikisource Conference 2025, Da…	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	Wikiar2022 0034 (cropped)	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	Nkem Osuigwe 3	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	Ananya Mondal - WLM	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	Netha Hussain-070A3987	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	Rosie at Wikimania 2023 6	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by-…	CC BY-SA 4.0	new tab	Add '(opens in new tab)' to text
https://commons.wikimedia.org/wiki/File:…	Andrew Lih	new tab	Add '(opens in new tab)' to text
https://creativecommons.org/licenses/by/…	CC BY 2.0	new tab	Add '(opens in new tab)' to text
https://store.wikimedia.org/	Wikipedia Store	new tab	Add '(opens in new tab)' to text
https://foundation.wikimedia.org/wiki/Sp…	Terms of use	new tab	Add '(opens in new tab)' to text
https://foundation.wikimedia.org/wiki/Sp…	Disclaimers	new tab	Add '(opens in new tab)' to text
https://foundation.wikimedia.org/wiki/Sp…	Cookies statement	new tab	Add '(opens in new tab)' to text

131 links and buttons have descriptive text

Add '(opens in new tab)' to link text or aria-label.

/news/2024/11/25/7-reasons-you-should-donate-to-wikipedia/; https://commons.wikimedia.org/wiki/File:Bothrops_bilineatus_PN_Carrasco.jpg; https://creativecommons.org/licenses/by-sa/4.0/; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Meehan-12032025CK_0312.jpg; https://creativecommons.org/publicdomain/zero/1.0/; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Wikipedia-blog-series-image-3.jpg; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Wikipedia-blog-series-image-2.jpg (+40 more)

Why this matters

Links with target="_blank" without rel="noopener" leak the originating page's window context — security and UX issue.

Learn more ▾

Without rel="noopener", the new tab can navigate the original tab via window.opener (tab-nabbing attack). Modern browsers default to noopener for target=_blank but only since recent versions. Always set rel="noopener noreferrer" explicitly.

Source: MDN target / OWASP

A+

Lighthouse Accessibility Audits

Score 95/100 — 2 failing, 30 passed

PASS

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
“Cinematic intensity”: The winners of Wiki Loves Earth 2025 `ul#splide01-list > li#splide01-slide01 > div.wp-block-group > h4.wp-block-post-title`

These are opportunities to improve keyboard navigation in your application.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`
File provided by Wikimedia Commons `div.attribution-item > div.attribution-item__content > div > a.commons-tooltip-wrapper`

These items highlight common accessibility best practices.

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

○The user's focus is directed to new content added to the page

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

●`[aria-*]` attributes match their roles

●`[aria-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●`[role]` values are valid

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Buttons have an accessible name

●Image elements have `[alt]` attributes

●Input buttons have discernible text.

●Form elements have associated labels

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

●ARIA attributes are used as specified for the element's role

●`[aria-hidden="true"]` elements do not contain focusable descendents

●Elements use only permitted ARIA attributes

●ARIA `tooltip` elements have accessible names

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links are distinguishable without relying on color.

●Links have a discernible name

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

●No element has a `[tabindex]` value greater than 0

●Skip links are focusable.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●ARIA IDs are unique

●`<video>` elements contain a `<track>` element with `[kind="captions"]`

●Identical links have the same purpose.

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements have accessible names

○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

○`[role]`s are contained by their required parent element

○Elements with the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `treeitem` elements have accessible names

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○No form fields have multiple labels

○`<frame>` or `<iframe>` elements have a title

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○`<input type="image">` elements have `[alt]` text

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`[lang]` attributes have a valid value

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Uses ARIA roles only on compatible elements

○Image elements do not have `[alt]` attributes that are redundant text.

○Elements with visible text labels have matching accessible names.

○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.

○`<td>` elements in a large `<table>` have one or more table headers.

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.