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

Link & Button Quality

Action

6 issue(s) across 280 links and 13 buttons

FIX

6 issue(s) across 280 links and 13 buttons

2 link(s) with no accessible text

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

Got: https://www.nasa.gov/live/; https://www.nasa.gov/wp-content/uploads/2026/04/55207935871-acaeaa8692-o.jpg

1 link(s) with generic text

Generic link text like 'click here' doesn't describe the destination.

Got: https://www.nasa.gov/news-release/nasa-welcomes-record-setting-artemis-ii-moo… ("Learn More")

25 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.nasa.gov/missions/station/nasas-northrop-grumman-crs-24-mission-o…"]; a[href="https://www.nasa.gov/news-release/nasa-to-host-artemis-ii-crew-postflight-new…"]; a[href="https://science.nasa.gov/blogs/science-news/2026/04/15/science-nasa-gov-parke…"]; a[href="https://www.nasa.gov/missions/spherex/interstellar-glaciers-nasas-spherex-map…"]; a[href="https://science.nasa.gov/missions/chandra/nasa-finds-young-stars-dim-in-x-ray…"]; a[href="https://www.nasa.gov/blogs/quesst/2026/04/15/nasas-x-59-shows-streamlined-pro…"]; a[href="https://www.nasa.gov/general/nasa-receives-7-nominations-for-the-30th-annual-…"]; a[href="https://science.nasa.gov/missions/webb/nasas-webb-redefines-dividing-line-bet…"]; a[href="https://science.nasa.gov/solar-system/whats-up-april-2026-skywatching-tips-fr…"]; a[href="https://www.nasa.gov/international-space-station/"] (+15 more)

6 link(s) open in new tab without warning

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

Got: https://www.nasa.gov/es/; https://www.facebook.com/NASA; https://www.instagram.com/nasa/; https://x.com/NASA; https://www.youtube.com/@NASA; http://oig.nasa.gov/

3 button(s) with no accessible text

Icon-only buttons need an aria-label so screen readers can announce them.

Got: button#global-navigation-trigger--mobile; button.hds-search-panel-mobile-trigger (#129 on page); button.hds-search-panel-bar-close-icon (#253 on page)

246 link(s) with descriptive text

280 links

2 empty

1 generic text

6 new tab

3 empty buttons

Element	Text	Issue	Suggested Fix
https://www.nasa.gov/missions/station/na…	4 min readNASA’s Northrop Gr…	img no alt	Add alt attribute to the image
https://www.nasa.gov/live/	(empty)	empty	Add link text or aria-label
https://www.nasa.gov/news-release/nasa-w…	Learn More	generic text	Replace with descriptive text
Before: Learn More Suggested: Nasa Welcomes Record Setting Artemis Ii Moonfarers Back To Earth
https://www.nasa.gov/news-release/nasa-t…	News Release3 Min ReadNASA to …	img no alt	Add alt attribute to the image
https://science.nasa.gov/blogs/science-n…	Blog2 Min ReadNASA’s Parker …	img no alt	Add alt attribute to the image
https://www.nasa.gov/missions/spherex/in…	Article6 Min Read‘Interstell…	img no alt	Add alt attribute to the image
https://science.nasa.gov/missions/chandr…	Article5 Min ReadNASA Finds Yo…	img no alt	Add alt attribute to the image
https://www.nasa.gov/blogs/quesst/2026/0…	2 Min ReadNASA’s X-59 Shows …	img no alt	Add alt attribute to the image
https://www.nasa.gov/general/nasa-receiv…	2 Min ReadNASA Receives 7 Nomi…	img no alt	Add alt attribute to the image
https://science.nasa.gov/missions/webb/n…	5 Min ReadNASA’s Webb Redefi…	img no alt	Add alt attribute to the image
https://science.nasa.gov/solar-system/wh…	3 Min ReadWhat’s Up: April 2…	img no alt	Add alt attribute to the image
https://www.nasa.gov/international-space…	International Space Station	img no alt	Add alt attribute to the image
https://www.nasa.gov/humans-in-space/liv…	Living in Space	img no alt	Add alt attribute to the image
https://www.nasa.gov/humans-in-space/des…	Destinations	img no alt	Add alt attribute to the image
https://www.nasa.gov/humans-in-space/ast…	Astronauts	img no alt	Add alt attribute to the image
https://www.nasa.gov/wp-content/uploads/…	(empty)	empty	Add link text or aria-label
https://www.nasa.gov/gallery/artemis-ii-…	Artemis II Splashdown and Retu…	img no alt	Add alt attribute to the image
https://www.nasa.gov/gallery/return-to-e…	Artemis II Return to Earth Gal…	img no alt	Add alt attribute to the image
https://www.nasa.gov/gallery/lunar-flyby…	Artemis II Lunar Flyby Gallery…	img no alt	Add alt attribute to the image
https://www.nasa.gov/gallery/journey-to-…	Artemis II Journey to the Moon…	img no alt	Add alt attribute to the image
https://www.nasa.gov/nasa-missions/	Missions	img no alt	Add alt attribute to the image
https://www.nasa.gov/humans-in-space/	Humans In Space	img no alt	Add alt attribute to the image
https://science.nasa.gov/earth/	Earth	img no alt	Add alt attribute to the image
https://science.nasa.gov/solar-system/ov…	Our Solar System	img no alt	Add alt attribute to the image
https://science.nasa.gov/universe/	Universe	img no alt	Add alt attribute to the image
https://science.nasa.gov/science-mission…	Science Missions	img no alt	Add alt attribute to the image
https://www.nasa.gov/aeronautics/	Aeronautics	img no alt	Add alt attribute to the image
https://www.nasa.gov/technology/	Technology	img no alt	Add alt attribute to the image
https://www.nasa.gov/es/	NASA en Español (opens in new…	new tab	Add '(opens in new tab)' to text
https://www.facebook.com/NASA	NASA on Facebook (opens in new…	new tab	Add '(opens in new tab)' to text
https://www.instagram.com/nasa/	NASA on Instagram (opens in ne…	new tab	Add '(opens in new tab)' to text
https://x.com/NASA	NASA on X (opens in new tab)	new tab	Add '(opens in new tab)' to text
https://www.youtube.com/@NASA	NASA on YouTube (opens in new …	new tab	Add '(opens in new tab)' to text
http://oig.nasa.gov/	Office of the IG (opens in new…	new tab	Add '(opens in new tab)' to text
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label

256 links and buttons have descriptive text

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

https://www.nasa.gov/live/; https://www.nasa.gov/wp-content/uploads/2026/04/55207935871-acaeaa8692-o.jpg

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

Generic link text like 'click here' doesn't describe the destination.

https://www.nasa.gov/news-release/nasa-welcomes-record-setting-artemis-ii-moo… ("Learn More")

Why this matters

Generic anchor text ('click here', 'read more', 'learn more') tells screen readers and search engines nothing about the destination.

Learn more ▾

Out-of-context lists of links read by AT (one navigation pattern) become useless when every link says 'click here'. Use the destination's title or topic as anchor text. Doubles as SEO win — Google passes anchor-text relevance to the destination.

Source: WCAG 2.4.4 / Google Search Central

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.nasa.gov/missions/station/nasas-northrop-grumman-crs-24-mission-o…"]; a[href="https://www.nasa.gov/news-release/nasa-to-host-artemis-ii-crew-postflight-new…"]; a[href="https://science.nasa.gov/blogs/science-news/2026/04/15/science-nasa-gov-parke…"]; a[href="https://www.nasa.gov/missions/spherex/interstellar-glaciers-nasas-spherex-map…"]; a[href="https://science.nasa.gov/missions/chandra/nasa-finds-young-stars-dim-in-x-ray…"]; a[href="https://www.nasa.gov/blogs/quesst/2026/04/15/nasas-x-59-shows-streamlined-pro…"]; a[href="https://www.nasa.gov/general/nasa-receives-7-nominations-for-the-30th-annual-…"]; a[href="https://science.nasa.gov/missions/webb/nasas-webb-redefines-dividing-line-bet…"]; a[href="https://science.nasa.gov/solar-system/whats-up-april-2026-skywatching-tips-fr…"]; a[href="https://www.nasa.gov/international-space-station/"] (+15 more)

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

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

https://www.nasa.gov/es/; https://www.facebook.com/NASA; https://www.instagram.com/nasa/; https://x.com/NASA; https://www.youtube.com/@NASA; http://oig.nasa.gov/

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

Icon-only buttons need an aria-label so screen readers can announce them.

button#global-navigation-trigger--mobile; button.hds-search-panel-mobile-trigger (#129 on page); button.hds-search-panel-bar-close-icon (#253 on page)

Why this matters

Buttons with no accessible text (icon-only, no aria-label) can't be activated by voice control or understood by screen readers.

Source: WCAG 2.1 SC 4.1.2

Dark Mode Support

Action

Theme color only

FIX

Theme color only

Theme-color present but no dark variant

A theme-color is set but no dark-specific variant was found. The browser toolbar may not adapt for dark mode users.

Got: #ffffff

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 ModePartial Dark Mode

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

Detection limited to meta tags and inline styles.

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 ✗

Navigation UX

Action

No navigation patterns

FIX

No navigation patterns

1 navigation landmark(s) detected

No breadcrumbs, search, or skip link detected

These navigation aids help users orient themselves and find content efficiently, especially on large sites.

Breadcrumbs

Skip Link

Labeled Navigation 1 <nav> element(s)

Hamburger Menu

Sticky Navigation Cannot reliably detect (CSS-based)

1 of 6 testable patterns navigation patterns detected. Limited navigation support. Consider adding breadcrumbs, search, and skip link.

Heading Hierarchy

99 headings

REVIEW

99 headings

No H1 heading found

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

H3 News & Events
H3 Multimedia
H2 Suggested Searches
H3 Featured
H3 Hubble Spies an Active Spiral
H3 Earthset From the Lunar Far Side
H3 NASA’s Northrop Grumman CRS-24 Mission Overview
H3 Missions
H3 Humans in Space
H3 Earth
H3 The Solar System
H3 The Universe
H3 Science
H3 Aeronautics
H3 Technology
H3 Learning Resources
H3 About NASA
H3 NASA en Español
H3 News & Events
H3 Multimedia
H3 Featured
H3 Hubble Spies an Active Spiral
H3 Earthset From the Lunar Far Side
H3 NASA’s Northrop Grumman CRS-24 Mission Overview
H3 Highlights
H3 NASA Answers Your Most Pressing Artemis II Questions
H3 Artemis II Podcast Series
H3 NASA Releases Artemis II Moon Mission Launch Countdown
H3 Highlights
H3 Eyeing the Richat Structure
H3 Honoring Alex Goetz, a Landsat Legend
H3 Contours of the James Bay Lowlands
H3 Highlights
H3 Amendment 51: C.6 Development and Advancement of Lunar Instrumentation Not Solicited in ROSES-25
H3 Twin NASA Control Rooms Support Artemis Safety, Success
H3 A Volcanic Medley Near Mammoth Lakes
H3 Featured
H3 ‘Interstellar Glaciers’: NASA’s SPHEREx Maps Vast Galactic Ice Regions
H3 NASA Finds Young Stars Dim in X-rays Surprisingly Quickly
H3 NASA’s Webb Redefines Dividing Line Between Planets, Stars
H3 Highlights
H3 Eyeing the Richat Structure
H3 ‘Interstellar Glaciers’: NASA’s SPHEREx Maps Vast Galactic Ice Regions
H3 Contours of the James Bay Lowlands
H3 Highlights
H3 2025-2026 Dream with Us Design Challenge Winners
H3 NASA Selects Finalists in Student Aircraft Maintenance Competition
H3 NASA’s X-59 Experimental Supersonic Aircraft Makes Second Flight
H3 Highlights
H3 Amendment 51: C.6 Development and Advancement of Lunar Instrumentation Not Solicited in ROSES-25
H3 Snow in the Shadow of the Andes
H3 Fires Tear Through Nebraska Grasslands
H3 Featured
H3 Join the Artemis Mission to the Moon
H3 Featured
H3 Twin NASA Control Rooms Support Artemis Safety, Success
H3 Meet NASA’s New Artemis II Science Officers
H3 NASA Strengthens Artemis: Adds Mission, Refines Overall Architecture
H3 Highlights
H3 La NASA anuncia la cobertura de la misión lunar Artemis II
H3 Agenda diaria de la misión a la Luna de Artemis II de la NASA
H3 La NASA refuerza Artemis: añade una misión y perfecciona su arquitectura general
H2 LIVE 2:30 p.m. EDT (1830 UTC)
H2 Artemis II
H2 Welcome Home
H3 MAKING HISTORY
H3 an incredible journey
H3 LUNAR EXPLORATION
H2 Featured News
H2 Nutrition in Space
H2 Humans in Space
H3 International Space Station
H3 Living in Space
H3 Destinations
H3 Astronauts
H3 Today
H2 Image Of The Day
H3 Today
H2 Image Of The Day
H2 More NASA Images
H3 Artemis II Splashdown and Return Gallery
H3 Artemis II Return to Earth Gallery
H3 Artemis II Lunar Flyby Gallery
H3 Artemis II Journey to the Moon Gallery
H2 Explore the Universe from your Inbox
H3 Freedom 250
H2 NASA Celebrates America’s 250th Birthday
H2 More Topics from NASA
H3 Missions
H3 Humans In Space
H3 Earth
H3 Our Solar System
H3 Universe
H3 Science Missions
H3 Aeronautics
H3 Technology
H3 National Aeronautics and Space Administration
H3 Follow NASA
H2 Was this page helpful?

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

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

Search form present on 404 page

404 Page Quality ✓ Custom 404 Page

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

Favicon & Branding

21 icon(s) detected

REVIEW

21 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 Present

✓ Multiple Sizes Present

Web Manifest

Action

Valid manifest

REVIEW

Valid manifest

No name or short_name

Add a name field to identify the app.

192x192 icon present

512x512 icon present

Display mode: standalone

PWA Install Criteria Not Installable

Name ✗192×192 icon ✓512×512 icon ✓Start URL ✗Display Mode standalone ✓

Display Mode standalone Theme Color #ffffff Background Color #ffffff Icons 2 icon(s)

Color Contrast (Screenshot)

Action

20 text elements analyzed, 20 fail WCAG AA

REVIEW

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

0 pass 20 fail WCAG AA

h2 Suggested Searches

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 LIVE 2:30 p.m. EDT (1830 UTC)

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Artemis II

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Welcome Home

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Featured News

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Nutrition in Space

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Humans in Space

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Image Of The Day

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Image Of The Day

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 More NASA Images

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Explore the Universe from your Inbox

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 NASA Celebrates America’s 250th Birthd…

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 More Topics from NASA

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Was this page helpful?

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h3 News & Events

1.00:1

#000000

needs 3.0:1 (large text)

19px · above the fold

h3 Multimedia

1.00:1

#000000

needs 3.0:1 (large text)

19px · mid-page

h3 Featured

1.00:1

#000000

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Hubble Spies an Active Spiral

1.00:1

#000000

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Earthset From the Lunar Far Side

1.00:1

#000000

needs 3.0:1 (large text)

19px · bottom of viewport

h3 NASA’s Northrop Grumman CRS-24 Missio…

1.00:1

#000000

needs 3.0:1 (large text)

19px · bottom of viewport

Show all checked elements (20)

Element	Ratio	Required	FG	BG	Result
h2 Suggested Searches	1.00:1	3.0:1	#000000	#000000	Fail
h2 LIVE 2:30 p.m. EDT (…	1.00:1	3.0:1	#000000	#000000	Fail
h2 Artemis II	1.00:1	3.0:1	#000000	#000000	Fail
h2 Welcome Home	1.00:1	3.0:1	#000000	#000000	Fail
h2 Featured News	1.00:1	3.0:1	#000000	#000000	Fail
h2 Nutrition in Space	1.00:1	3.0:1	#000000	#000000	Fail
h2 Humans in Space	1.00:1	3.0:1	#000000	#000000	Fail
h2 Image Of The Day	1.00:1	3.0:1	#000000	#000000	Fail
h2 Image Of The Day	1.00:1	3.0:1	#000000	#000000	Fail
h2 More NASA Images	1.00:1	3.0:1	#000000	#000000	Fail
h2 Explore the Universe…	1.00:1	3.0:1	#000000	#000000	Fail
h2 NASA Celebrates Amer…	1.00:1	3.0:1	#000000	#000000	Fail
h2 More Topics from NAS…	1.00:1	3.0:1	#000000	#000000	Fail
h2 Was this page helpfu…	1.00:1	3.0:1	#000000	#000000	Fail
h3 News & Events	1.00:1	3.0:1	#000000	#000000	Fail
h3 Multimedia	1.00:1	3.0:1	#000000	#000000	Fail
h3 Featured	1.00:1	3.0:1	#000000	#000000	Fail
h3 Hubble Spies an Acti…	1.00:1	3.0:1	#000000	#000000	Fail
h3 Earthset From the Lu…	1.00:1	3.0:1	#000000	#000000	Fail
h3 NASA’s Northrop Gr…	1.00:1	3.0:1	#000000	#000000	Fail

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.

Landmark Structure

5 landmarks

PASS

5 landmarks

<main> landmark present

1 <nav> landmark(s) found

Skip navigation link is missing (WCAG 2.4.1)

Add a skip link as the first focusable element so keyboard users can bypass repeated navigation.

Page Structure — as a screen reader sees it

Add a skip link as the first focusable element so keyboard users can bypass repeated navigation.

Why this matters

Without a skip-nav link, keyboard users tab through every nav item before reaching content — every page, every visit.

Learn more ▾

WCAG 2.4.1 (Bypass Blocks) requires a mechanism to skip past repeated content. The standard implementation is a 'Skip to main content' link that's the first focusable element, visually hidden until focused. Three lines of HTML + four of CSS.

Source: WCAG 2.1 SC 2.4.1

A+

Alt Text Quality

All 76 images OK

PASS

All 76 images OK

2 image(s) with alt text over 125 characters

37 decorative image(s) correctly marked

37 image(s) with good alt text

76 images 37 good alt text 37 decorative

Issue	Count
too long	2 image(s)

Form Accessibility

1 of 6 controls have issues

PASS

1 of 6 controls have issues

1 control(s) without accessible label

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

Got: <input type="submit" id="gform_submit_button_117">

5 control(s) properly labeled

6 controls

5 labeled

0 placeholder only

1 unlabeled

Control	Type	Label	Method
#search-field-en-small--desktop	search	Search	for/id
#search-field-en-small--mobile	search	Search	for/id
ak_hp_textarea	textarea	Δ	none
#choice_117_1_0	radio	Yes	for/id
#choice_117_1_1	radio	No	for/id
#gform_submit_button_117	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

Lighthouse Accessibility Audits

Score 91/100 — 2 failing, 25 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.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
header.hds-nasa-header > div.usa-nav-container > div.grid-col > button#global-navigation-trigger--mobile `header.hds-nasa-header > div.usa-nav-container > div.grid-col > button#global-navigation-trigger--mobile`
header.hds-nasa-header > div.usa-nav-container > div.grid-col > button.hds-search-panel-mobile-trigger `header.hds-nasa-header > div.usa-nav-container > div.grid-col > button.hds-search-panel-mobile-trigger`

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.grid-row > div.grid-row > div.grid-col-2 > a `div.grid-row > div.grid-row > div.grid-col-2 > a`
div.grid-row > div.grid-col-12 > div.hds-image-download-wrapper > a.hds-image-download-link `div.grid-row > div.grid-col-12 > div.hds-image-download-wrapper > a.hds-image-download-link`

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

○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

●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.

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

●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.

●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

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Identical links have the same purpose.

○`[accesskey]` values are unique

○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 `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

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

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○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

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

○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.