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

31 issue(s) across 322 links and 10 buttons

FIX

31 issue(s) across 322 links and 10 buttons

18 link(s) with no accessible text

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

Got: https://x.com/nasa; https://plus.nasa.gov/scheduled-events/; https://www.youtube.com/@NASA/streams; https://www.amazon.com/gp/video/detail/B0GQS8BY5L/ref=atv_hm_liv_lr4f4b5f_c_WIXkOQ_1_17?jic=8%7CEgNhbGw%3D; https://www.peacocktv.com/signin?return=%2Fwatch%2Fplayback%2Fevent%2F_%2F24e11c93-0cc6-36e5-886e-020486c2b5f7; https://www.netflix.com/title/82066548; https://www.facebook.com/NASA/; https://www.twitch.tv/nasa/; https://x.com/nasa; https://plus.nasa.gov/scheduled-events/ (+8 more)

10 link(s) with generic text

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

Got: https://www.nasa.gov/blogs/missions/2026/04/06/artemis-ii-flight-day-6-crew-ready-for-lunar-flyby/ ("Artemis II Flight Day 6: Crew Ready for Lunar Flyby"); https://www.nasa.gov/blogs/missions/2026/04/05/artemis-ii-flight-day-5-correction-burn-complete/ ("Artemis II Flight Day 5: Correction Burn Complete"); https://www.nasa.gov/blogs/missions/2026/04/05/artemis-ii-flight-day-5-crew-demos-suits-readies-for-lunar-flyby/ ("Artemis II Flight Day 5: Crew Demos Suits, Readies for Lunar Flyby"); https://www.nasa.gov/blogs/missions/2026/04/05/artemis-ii-flight-day-5-crew-starts-day-with-suit-demo/ ("Artemis II Flight Day 5: Crew Starts Day with Suit Demo"); https://www.nasa.gov/blogs/missions/2026/04/04/artemis-ii-flight-day-4-crew-completes-manual-piloting-demonstration/ ("Artemis II Flight Day 4: Crew Completes Manual Piloting Demonstration"); https://www.nasa.gov/blogs/missions/2026/04/04/artemis-ii-flight-day-4-deep-space-flying-lunar-flyby-prep/ ("Artemis II Flight Day 4: Deep-Space Flying, Lunar Flyby Prep"); https://www.nasa.gov/blogs/missions/2026/04/04/artemis-ii-flight-day-3-crew-prepares-cabin-for-lunar-flyby/ ("Artemis II Flight Day 3: Crew Prepares Cabin for Lunar Flyby"); https://www.nasa.gov/blogs/missions/2026/04/03/artemis-ii-flight-day-3-outbound-trajectory-correction-burn-update/ ("Artemis II Flight Day 3: Outbound Trajectory Correction Burn Update"); https://www.nasa.gov/blogs/missions/2026/04/03/artemis-ii-flight-day-3-crew-prepares-for-first-correction-burn-readies-to-receive-lunar-observation-assignment/ ("Artemis II Flight Day 3: Crew Prepares for First Correction Burn, Readies to Receive Lunar Observation Assignment"); https://www.nasa.gov/blogs/missions/2026/04/02/artemis-ii-flight-day-2-orion-completes-tli-burn-crew-begins-journey-to-the-moon/ ("Artemis II Flight Day 2: Orion Completes TLI Burn, Crew Begins Journey to the Moon")

23 image-only link(s) without alt text

20 link(s) open in new tab without warning

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

Got: https://x.com/nasa; https://plus.nasa.gov/scheduled-events/; https://www.youtube.com/@NASA/streams; https://www.amazon.com/gp/video/detail/B0GQS8BY5L/ref=atv_hm_liv_lr4f4b5f_c_WIXkOQ_1_17?jic=8%7CEgNhbGw%3D; https://www.facebook.com/NASA/; https://www.twitch.tv/nasa/; https://x.com/nasa; https://plus.nasa.gov/scheduled-events/; https://www.youtube.com/@NASA/streams; https://www.amazon.com/gp/video/detail/B0GQS8BY5L/ref=atv_hm_liv_lr4f4b5f_c_WIXkOQ_1_17?jic=8%7CEgNhbGw%3D (+10 more)

3 button(s) with no accessible text

251 link(s) with descriptive text

322 links

18 empty

10 generic text

20 new tab

3 empty buttons

Element	Text	Issue	Suggested Fix
https://www.nasa.gov/general/nasa-releas…	7 min readNASA Releases Artemi…	img no alt	Add alt attribute to the image
https://www.nasa.gov/missions/artemis/na…	11 min readNASA’s Artemis II…	img no alt	Add alt attribute to the image
https://www.nasa.gov/missions/artemis/ar…	3 min readTrack NASA’s Artem…	img no alt	Add alt attribute to the image
https://www.nasa.gov/blogs/missions/2026…	link	generic text	Replace with descriptive text
Before: link Suggested: Artemis Ii Flight Day 6 Crew Ready For Lunar Flyby
https://www.nasa.gov/blogs/missions/2026…	link	generic text	Replace with descriptive text
Before: link Suggested: Artemis Ii Flight Day 5 Correction Burn Complete
https://www.nasa.gov/blogs/missions/2026…	link	generic text	Replace with descriptive text
Before: link Suggested: Artemis Ii Flight Day 5 Crew Demos Suits Readies For Lunar Flyby
https://www.nasa.gov/blogs/missions/2026…	link	generic text	Replace with descriptive text
Before: link Suggested: Artemis Ii Flight Day 5 Crew Starts Day With Suit Demo
https://www.nasa.gov/blogs/missions/2026…	link	generic text	Replace with descriptive text
Before: link Suggested: Artemis Ii Flight Day 4 Crew Completes Manual Piloting Demonstration
https://www.nasa.gov/blogs/missions/2026…	link	generic text	Replace with descriptive text
Before: link Suggested: Artemis Ii Flight Day 4 Deep Space Flying Lunar Flyby Prep
https://www.nasa.gov/blogs/missions/2026…	link	generic text	Replace with descriptive text
Before: link Suggested: Artemis Ii Flight Day 3 Crew Prepares Cabin For Lunar Flyby
https://www.nasa.gov/blogs/missions/2026…	link	generic text	Replace with descriptive text
Before: link Suggested: Artemis Ii Flight Day 3 Outbound Trajectory Correction Burn Update
https://www.nasa.gov/blogs/missions/2026…	link	generic text	Replace with descriptive text
Before: link Suggested: Artemis Ii Flight Day 3 Crew Prepares For First Correction Burn Readies To Receive Lunar Observation Assignment
https://www.nasa.gov/blogs/missions/2026…	link	generic text	Replace with descriptive text
Before: link Suggested: Artemis Ii Flight Day 2 Orion Completes Tli Burn Crew Begins Journey To The Moon
https://x.com/nasa	(empty)	empty	Add link text or aria-label
https://x.com/nasa	X	new tab	Add '(opens in new tab)' to text
https://plus.nasa.gov/scheduled-events/	(empty)	empty	Add link text or aria-label
https://plus.nasa.gov/scheduled-events/	NASA+	new tab	Add '(opens in new tab)' to text
https://www.youtube.com/@NASA/streams	(empty)	empty	Add link text or aria-label
https://www.youtube.com/@NASA/streams	YouTube	new tab	Add '(opens in new tab)' to text
https://www.amazon.com/gp/video/detail/B…	(empty)	empty	Add link text or aria-label
https://www.amazon.com/gp/video/detail/B…	Amazon Prime	new tab	Add '(opens in new tab)' to text
https://www.peacocktv.com/signin?return=…	(empty)	empty	Add link text or aria-label
https://www.netflix.com/title/82066548	(empty)	empty	Add link text or aria-label
https://www.facebook.com/NASA/	(empty)	empty	Add link text or aria-label
https://www.facebook.com/NASA/	Facebook	new tab	Add '(opens in new tab)' to text
https://www.twitch.tv/nasa/	(empty)	empty	Add link text or aria-label
https://www.twitch.tv/nasa/	Twitch	new tab	Add '(opens in new tab)' to text
https://x.com/nasa	(empty)	empty	Add link text or aria-label
https://x.com/nasa	X	new tab	Add '(opens in new tab)' to text
https://plus.nasa.gov/scheduled-events/	(empty)	empty	Add link text or aria-label
https://plus.nasa.gov/scheduled-events/	NASA+	new tab	Add '(opens in new tab)' to text
https://www.youtube.com/@NASA/streams	(empty)	empty	Add link text or aria-label
https://www.youtube.com/@NASA/streams	YouTube	new tab	Add '(opens in new tab)' to text
https://www.amazon.com/gp/video/detail/B…	(empty)	empty	Add link text or aria-label
https://www.amazon.com/gp/video/detail/B…	Amazon Prime	new tab	Add '(opens in new tab)' to text
https://www.peacocktv.com/signin?return=…	(empty)	empty	Add link text or aria-label
https://www.netflix.com/title/82066548	(empty)	empty	Add link text or aria-label
https://www.facebook.com/NASA/	(empty)	empty	Add link text or aria-label
https://www.facebook.com/NASA/	Facebook	new tab	Add '(opens in new tab)' to text
https://www.twitch.tv/nasa/	(empty)	empty	Add link text or aria-label
https://www.twitch.tv/nasa/	Twitch	new tab	Add '(opens in new tab)' to text
https://x.com/nasa	(empty)	empty	Add link text or aria-label
https://x.com/nasa	X	new tab	Add '(opens in new tab)' to text
https://www.nasa.gov/missions/nasa-answe…	Article11 Min ReadNASA Answers…	img no alt	Add alt attribute to the image
https://www.nasa.gov/missions/artemis/na…	Article11 Min ReadNASA’s Art…	img no alt	Add alt attribute to the image
https://www.nasa.gov/missions/artemis/ar…	Article3 Min ReadTrack NASA’…	img no alt	Add alt attribute to the image
https://www.nasa.gov/blogs/missions/2026…	Blog3 Min ReadArtemis II Fligh…	img no alt	Add alt attribute to the image
https://www.nasa.gov/missions/artemis/ar…	4 Min ReadArtemis II: What’s…	img no alt	Add alt attribute to the image
https://www.nasa.gov/centers-and-facilit…	4 Min ReadPreparing for Artemi…	img no alt	Add alt attribute to the image
https://www.nasa.gov/missions/artemis/ne…	5 Min ReadNetworks Keeping NAS…	img no alt	Add alt attribute to the image
https://science.nasa.gov/missions/artemi…	5 Min ReadMeet NASA’s New Ar…	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/artemis-ii-multimed…	Artemis II Multimedia	new tab	Add '(opens in new tab)' to text
https://www.nasa.gov/gallery/journey-to-…	Journey to the Moon Gallery27 …	img no alt	Add alt attribute to the image
https://www.nasa.gov/gallery/artemis-ii-…	Artemis II Astronauts Gallery1…	img no alt	Add alt attribute to the image
https://www.nasa.gov/gallery/nasas-space…	NASA’s Space Launch System R…	img no alt	Add alt attribute to the image
https://www.nasa.gov/gallery/nasas-orion…	NASA’s Orion Spacecraft Gall…	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

258 links and buttons have descriptive text

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

https://x.com/nasa; https://plus.nasa.gov/scheduled-events/; https://www.youtube.com/@NASA/streams; https://www.amazon.com/gp/video/detail/B0GQS8BY5L/ref=atv_hm_liv_lr4f4b5f_c_WIXkOQ_1_17?jic=8%7CEgNhbGw%3D; https://www.peacocktv.com/signin?return=%2Fwatch%2Fplayback%2Fevent%2F_%2F24e11c93-0cc6-36e5-886e-020486c2b5f7; https://www.netflix.com/title/82066548; https://www.facebook.com/NASA/; https://www.twitch.tv/nasa/; https://x.com/nasa; https://plus.nasa.gov/scheduled-events/ (+8 more)

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/blogs/missions/2026/04/06/artemis-ii-flight-day-6-crew-ready-for-lunar-flyby/ ("Artemis II Flight Day 6: Crew Ready for Lunar Flyby"); https://www.nasa.gov/blogs/missions/2026/04/05/artemis-ii-flight-day-5-correction-burn-complete/ ("Artemis II Flight Day 5: Correction Burn Complete"); https://www.nasa.gov/blogs/missions/2026/04/05/artemis-ii-flight-day-5-crew-demos-suits-readies-for-lunar-flyby/ ("Artemis II Flight Day 5: Crew Demos Suits, Readies for Lunar Flyby"); https://www.nasa.gov/blogs/missions/2026/04/05/artemis-ii-flight-day-5-crew-starts-day-with-suit-demo/ ("Artemis II Flight Day 5: Crew Starts Day with Suit Demo"); https://www.nasa.gov/blogs/missions/2026/04/04/artemis-ii-flight-day-4-crew-completes-manual-piloting-demonstration/ ("Artemis II Flight Day 4: Crew Completes Manual Piloting Demonstration"); https://www.nasa.gov/blogs/missions/2026/04/04/artemis-ii-flight-day-4-deep-space-flying-lunar-flyby-prep/ ("Artemis II Flight Day 4: Deep-Space Flying, Lunar Flyby Prep"); https://www.nasa.gov/blogs/missions/2026/04/04/artemis-ii-flight-day-3-crew-prepares-cabin-for-lunar-flyby/ ("Artemis II Flight Day 3: Crew Prepares Cabin for Lunar Flyby"); https://www.nasa.gov/blogs/missions/2026/04/03/artemis-ii-flight-day-3-outbound-trajectory-correction-burn-update/ ("Artemis II Flight Day 3: Outbound Trajectory Correction Burn Update"); https://www.nasa.gov/blogs/missions/2026/04/03/artemis-ii-flight-day-3-crew-prepares-for-first-correction-burn-readies-to-receive-lunar-observation-assignment/ ("Artemis II Flight Day 3: Crew Prepares for First Correction Burn, Readies to Receive Lunar Observation Assignment"); https://www.nasa.gov/blogs/missions/2026/04/02/artemis-ii-flight-day-2-orion-completes-tli-burn-crew-begins-journey-to-the-moon/ ("Artemis II Flight Day 2: Orion Completes TLI Burn, Crew Begins Journey to the Moon")

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

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

https://x.com/nasa; https://plus.nasa.gov/scheduled-events/; https://www.youtube.com/@NASA/streams; https://www.amazon.com/gp/video/detail/B0GQS8BY5L/ref=atv_hm_liv_lr4f4b5f_c_WIXkOQ_1_17?jic=8%7CEgNhbGw%3D; https://www.facebook.com/NASA/; https://www.twitch.tv/nasa/; https://x.com/nasa; https://plus.nasa.gov/scheduled-events/; https://www.youtube.com/@NASA/streams; https://www.amazon.com/gp/video/detail/B0GQS8BY5L/ref=atv_hm_liv_lr4f4b5f_c_WIXkOQ_1_17?jic=8%7CEgNhbGw%3D (+10 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

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

124 headings

REVIEW

124 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 NASA Releases Artemis II Moon Mission Launch Countdown
H3 NASA’s Artemis II Moon Mission Daily Agenda
H3 Track NASA’s Artemis II Mission in Real Time
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 NASA Releases Artemis II Moon Mission Launch Countdown
H3 Preparing for Artemis II: Training for a Mission Around the Moon
H3 To Protect Artemis II Astronauts, NASA Experts Keep Eyes on Sun
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 Barents Sea Tied to Low Arctic Sea Ice
H3 Réunion Island Lava Reaches the Sea
H3 March of the Harmattan
H3 Highlights
H3 Meet NASA’s New Artemis II Science Officers
H3 Impact Flash!
H3 Helio and You: The Sun, Solar Wind, and Earth as a Connected System
H3 Featured
H3 NASA Webb, Hubble Share Most Comprehensive View of Saturn to Date
H3 NASA-JAXA’s XRISM Telescope Clocks Hot Wind of Galaxy M82
H3 NASA’s Hubble Revisits Crab Nebula to Track 25 Years of Expansion
H3 Highlights
H3 Meet NASA’s New Artemis II Science Officers
H3 Barents Sea Tied to Low Arctic Sea Ice
H3 Georgia Peterson
H3 Highlights
H3 NASA Selects Finalists in Student Aircraft Maintenance Competition
H3 NASA’s X-59 Experimental Supersonic Aircraft Makes Second Flight
H3 NASA Simulations Improve Artemis II Launch Environment
H3 Highlights
H3 Fires Tear Through Nebraska Grasslands
H3 I Am Artemis: Erik Richards
H3 NASA Tech and Science Bound for Low Earth Orbit on Commercial Launch
H3 Featured
H3 Join the Artemis Mission to the Moon
H3 Featured
H3 NASA’s Artemis II Moon Mission Daily Agenda
H3 Preparing for Artemis II: Training for a Mission Around the Moon
H3 Track NASA’s Artemis II Mission in Real Time
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 NASA’s Artemis II Crew Launches to the Moon
H3 Live Mission Updates
H4 13 minutes ago
H4 11 hours ago
H4 17 hours ago
H4 22 hours ago
H4 1 day ago
H4 1 day ago
H4 2 days ago
H4 2 days ago
H4 2 days ago
H4 3 days ago
H2 WHERE TO WATCH
H3 X
H3 NASA+
H3 YouTube
H3 Amazon Prime
H3 Peacock
H3 Netflix
H3 Facebook
H3 Twitch
H3 X
H3 NASA+
H3 YouTube
H3 Amazon Prime
H3 Peacock
H3 Netflix
H3 Facebook
H3 Twitch
H3 X
H2 Artemis II News
H2 Forging New Frontiers
H2 Meet the Astronauts
H3 Reid Wiseman
H3 Victor Glover
H3 Christina Koch
H3 Jeremy Hansen
H3 Today
H2 Image Of The Day
H3 Today
H2 Image Of The Day
H2 Mission Images
H3 Journey to the Moon Gallery
H3 Artemis II Astronauts Gallery
H3 NASA’s Space Launch System Rocket Gallery
H3 NASA’s Orion Spacecraft Gallery
H3 A Trip Around the Moon
H2 Who Is Your #NASAMoonCrew?
H3 A Trip Around the Moon
H2 Which Artemis Astronaut Are You?
H2 Explore the Universe from your Inbox
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

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

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 NASA’s Artemis II Crew Launches to the…

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 WHERE TO WATCH

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Artemis II News

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Forging New Frontiers

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Meet the Astronauts

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 Mission Images

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Who Is Your #NASAMoonCrew?

1.00:1

#000000

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Which Artemis Astronaut Are You?

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 More Topics from NASA

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 NASA Releases Artemis II Moon Mission La…

1.00:1

#000000

needs 3.0:1 (large text)

19px · bottom of viewport

h3 NASA’s Artemis II Moon Mission Daily A…

1.00:1

#000000

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Track NASA’s Artemis II Mission in Rea…

1.00:1

#000000

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Missions

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 NASA’s Artemis II …	1.00:1	3.0:1	#000000	#000000	Fail
h2 WHERE TO WATCH	1.00:1	3.0:1	#000000	#000000	Fail
h2 Artemis II News	1.00:1	3.0:1	#000000	#000000	Fail
h2 Forging New Frontier…	1.00:1	3.0:1	#000000	#000000	Fail
h2 Meet the Astronauts	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 Mission Images	1.00:1	3.0:1	#000000	#000000	Fail
h2 Who Is Your #NASAMoo…	1.00:1	3.0:1	#000000	#000000	Fail
h2 Which Artemis Astron…	1.00:1	3.0:1	#000000	#000000	Fail
h2 Explore the Universe…	1.00:1	3.0:1	#000000	#000000	Fail
h2 More Topics from NAS…	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 NASA Releases Artemi…	1.00:1	3.0:1	#000000	#000000	Fail
h3 NASA’s Artemis II …	1.00:1	3.0:1	#000000	#000000	Fail
h3 Track NASA’s Artem…	1.00:1	3.0:1	#000000	#000000	Fail
h3 Missions	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.

Lighthouse Accessibility Audits

Score 89/100 — 4 failing, 26 passed

REVIEW

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.slick-track > div.hds-meet-the-card > div.hds-meet-the-inner > a.hds-meet-the-image `div.slick-track > div.hds-meet-the-card > div.hds-meet-the-inner > a.hds-meet-the-image`
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.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
04 `div.countdown-item > div.countdown-item-inner > p`
days `div.countdown-item > div.countdown-item-inner > span.label`
16 `div.countdown-item > div.countdown-item-inner > p`
hrs `div.countdown-item > div.countdown-item-inner > span.label`
33 `div.countdown-item > div.countdown-item-inner > p`
mins `div.countdown-item > div.countdown-item-inner > span.label`
11 `div.countdown-item > div.countdown-item-inner > p`
secs `div.countdown-item > div.countdown-item-inner > span.label`
LIVE `div.hds-nasa-live-main > div.grid-container > div.w-full > div.hds-live-tag`

These are opportunities to improve the legibility of your content.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Artemis II Flight Day 6: Crew Ready for Lunar Flyby `ul.hds-live-updates-items > li.hds-live-update-item > div.hds-live-update-item-inner > a`
Artemis II Flight Day 5: Correction Burn Complete `ul.hds-live-updates-items > li.hds-live-update-item > div.hds-live-update-item-inner > a`
Artemis II Flight Day 5: Crew Demos Suits, Readies for Lunar Flyby `ul.hds-live-updates-items > li.hds-live-update-item > div.hds-live-update-item-inner > a`
Artemis II Flight Day 5: Crew Starts Day with Suit Demo `ul.hds-live-updates-items > li.hds-live-update-item > div.hds-live-update-item-inner > a`
Artemis II Flight Day 4: Crew Completes Manual Piloting Demonstration `ul.hds-live-updates-items > li.hds-live-update-item > div.hds-live-update-item-inner > a`
Artemis II Flight Day 4: Deep-Space Flying, Lunar Flyby Prep `ul.hds-live-updates-items > li.hds-live-update-item > div.hds-live-update-item-inner > a`
Artemis II Flight Day 3: Crew Prepares Cabin for Lunar Flyby `ul.hds-live-updates-items > li.hds-live-update-item > div.hds-live-update-item-inner > a`
Artemis II Flight Day 3: Outbound Trajectory Correction Burn Update `ul.hds-live-updates-items > li.hds-live-update-item > div.hds-live-update-item-inner > a`
Artemis II Flight Day 3: Crew Prepares for First Correction Burn, Readies to Re… `ul.hds-live-updates-items > li.hds-live-update-item > div.hds-live-update-item-inner > a`
Artemis II Flight Day 2: Orion Completes TLI Burn, Crew Begins Journey to the M… `ul.hds-live-updates-items > li.hds-live-update-item > div.hds-live-update-item-inner > a`

○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

●ARIA input fields have accessible names

●Elements use only permitted ARIA attributes

●Document has a `<title>` element

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

●`<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 `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

○`<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.

○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.

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 91 images OK

PASS

All 91 images OK

57 decorative image(s) correctly marked

34 image(s) with good alt text

91 images 34 good alt text 57 decorative

All images have appropriate alt text.

A+

Form Accessibility

All 2 controls labeled

PASS

All 2 controls labeled

2 control(s) properly labeled

2 controls

2 labeled

0 placeholder only

0 unlabeled

Control	Type	Label	Method
#search-field-en-small--desktop	search	Search	for/id
#search-field-en-small--mobile	search	Search	for/id

404 Error Page

HTTP 404, custom page

PASS

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

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 ✓

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