Accessibility

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Checks

7 PASS 3 REVIEW 3 FIX

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.

Dark Mode Support

Action

No dark mode signals

FIX

No dark mode signals

No dark mode signals detected

Consider adding CSS with @media (prefers-color-scheme: dark) and <meta name='color-scheme' content='light dark'>.

Detection limited to meta tags and inline styles

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

Dark ModeNo Dark Mode Detected

color-scheme meta Not set ✗Dark theme-color Not set ✗CSS indicators Not detected ✗

Detection limited to meta tags and inline styles.

Link & Button Quality

1 issue(s) across 91 links and 14 buttons

REVIEW

1 issue(s) across 91 links and 14 buttons

1 link(s) with no accessible text

Links without text are announced as raw URLs by screen readers.

Got: a (#174 on page)

4 image-only link(s) without alt text

Image-only links need alt text on the image (or aria-label on the link) so screen readers can announce them.

Got: a[href="https://www.w3.org/help/search/"]; a#account-login-link; a[href="https://w3c.social/@w3c"]; a[href="https://github.com/w3c/"]

86 link(s) with descriptive text

91 links

1 empty

0 generic text

0 new tab

0 empty buttons

Element	Text	Issue	Suggested Fix
	(empty)	empty	Add link text or aria-label
https://www.w3.org/help/search/	Search	img no alt	Add alt attribute to the image
https://auth.w3.org/?url=https://www.w3.…	Sign in	img no alt	Add alt attribute to the image
https://w3c.social/@w3c	W3C on Mastodon	img no alt	Add alt attribute to the image
https://github.com/w3c/	W3C on GitHub	img no alt	Add alt attribute to the image

100 links and buttons have descriptive text

Links without text are announced as raw URLs by screen readers.

a (#174 on page)

Why this matters

Links with no accessible text (empty <a></a>, image-only no alt, icon-only no aria-label) are unidentifiable to screen readers.

Source: WCAG 2.1 SC 2.4.4

Image-only links need alt text on the image (or aria-label on the link) so screen readers can announce them.

a[href="https://www.w3.org/help/search/"]; a#account-login-link; a[href="https://w3c.social/@w3c"]; a[href="https://github.com/w3c/"]

Why this matters

Image-only links with no alt are unidentifiable to screen-reader users — link's destination is invisible.

Source: WCAG 2.1 SC 2.4.4

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

404 Page Quality ✓ Custom 404 Page

Status Code HTTP 404 ✓Page Title Page Not Found | W3C ✓Custom Styling ✓Navigation ✓Homepage Link ✗Search Form ✗

Favicon & Branding

Action

3 icon(s) detected

REVIEW

3 icon(s) detected

favicon.ico present at site root

HTML icon links detected

Apple touch icon present

✓ favicon.ico Present

✓ PNG Icons Present

✓ Apple Touch Present

✗ SVG Favicon Missing

✗ Manifest Icons Missing

✗ Multiple Sizes Missing

A+

Landmark Structure

6 landmarks

PASS

6 landmarks

<main> landmark present

2 <nav> landmark(s) found

All <nav> elements are properly labeled

Skip navigation link present

Page Structure — as a screen reader sees it

A+

Heading Hierarchy

16 headings

PASS

16 headings

Single H1 present

H2 Standards & groups
H2 Get involved
H2 Resources
H2 News & events
H2 Support us
H2 About
H1 Making the web work
H2 Working with stakeholders of the web
H2 W3C 30th anniversary
H2 Web standards
H2 Get involved
H2 Latest news
H3 Five First Public Working Drafts published by the Verifiable Credentials Working Group
H3 2026 Breakouts Day recap
H3 First Public Working Draft: CSS Image Animation Module Level 1
H3 First Public Working Draft: Verifiable Credentials Data Model v2.1

A+

Alt Text Quality

All 14 images OK

PASS

All 14 images OK

7 decorative image(s) correctly marked

7 image(s) with good alt text

14 images 7 good alt text 7 decorative

All images have appropriate alt text.

A+

Form Accessibility

No form controls

PASS

No form controls

No form controls on this page

No form controls found.

A+

Print Stylesheet

Print styles detected

PASS

Print styles detected

External print stylesheet detected

Got: https://www.w3.org/assets/website-2021/styles/print.css

Print Stylesheet ✓ Print Optimized

Print stylesheet https://www.w3.org/assets/website-2021/styles/print.css ✓Inline @media print Not detected ✗

A+

Color Contrast (Screenshot)

20 text elements analyzed, 0 fail WCAG AA

PASS

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

20 pass

Show all checked elements (20)

Element	Ratio	Required	FG	BG	Result
h1 Making the web work	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 Standards & groups	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 Get involved	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 Resources	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 News & events	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 Support us	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 About	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 Working with stakeho…	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 W3C 30th anniversary	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 Web standards	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 Get involved	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 Latest news	21.00:1	3.0:1	#000000	#FFFFFF	Pass
title W3C	19.81:1	4.5:1	#000000	#F8F8FB	Pass
a Skip to content	20.48:1	4.5:1	#000000	#FCFCFD	Pass
a 日本語ホーム�…	21.00:1	4.5:1	#000000	#FFFFFF	Pass
span Japanese website	21.00:1	4.5:1	#000000	#FFFFFF	Pass
a 简体中文首页	21.00:1	4.5:1	#000000	#FFFFFF	Pass
span Chinese website	21.00:1	4.5:1	#000000	#FFFFFF	Pass
span Visit the W3C homepa…	21.00:1	4.5:1	#000000	#FFFFFF	Pass
button Menu	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+

Lighthouse Accessibility Audits

Score 100/100 — 0 failing, 26 passed

PASS

100

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.

○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

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

●`[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

●`[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

●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

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

●Touch targets have sufficient size and spacing.

●`[lang]` attributes have a valid value

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

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

○`[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

○`[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 `tooltip` elements 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

○ARIA IDs are unique

○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 buttons have discernible text.

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

○Form elements have associated labels

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

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

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

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

○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.

○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.

○Identical links have the same purpose.

○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.