Accessibility

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Checks

3 PASS 5 REVIEW 5 FIX

Link & Button Quality

Action

8 issue(s) across 296 links and 6 buttons

FIX

8 issue(s) across 296 links and 6 buttons

7 link(s) with no accessible text

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

Got: https://thebulletin.org/tag/iran/; https://thebulletin.org/arts-science-initiative/; https://thebulletin.org/next-generation-program/; https://thebulletin.org/pathogens-project/; https://thebulletin.org/arts-science-initiative/; https://thebulletin.org/next-generation-program/; https://thebulletin.org/pathogens-project/

1 link(s) with generic text

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

Got: https://thebulletin.org/the-ai-power-trip/ ("Read more")

8 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://thebulletin.org/2026/04/ai-policy-is-built-for-oversight-not-crisis-t…"]; a[href="https://thebulletin.org/2026/04/what-the-historically-low-snowpack-in-the-ame…"]; a[href="https://thebulletin.org/2026/04/its-just-madness-trump-administration-to-clos…"]; a[href="https://thebulletin.org/2026/04/ai-policy-is-built-for-oversight-not-crisis-t…"]; a[href="https://thebulletin.org/2026/04/what-the-historically-low-snowpack-in-the-ame…"]; a[href="https://thebulletin.org/2026/04/its-just-madness-trump-administration-to-clos…"]; a[href="https://thebulletin.org/2026/03/fukushima-at-15-living-with-radioactive-hot-s…"]; a[href="https://thebulletin.org/2026/04/building-an-audio-experience-for-the-bulletin…"]

15 link(s) open in new tab without warning

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

Got: https://igfn.us/form/0r-Q2Q; https://www.facebook.com/BulletinOfTheAtomicScientists; https://bsky.app/profile/thebulletin.org; https://www.instagram.com/bulletinoftheatomicscientists/; https://www.youtube.com/channel/UCaeUKy8bDzOu2DH5c006NbQ; https://www.linkedin.com/company/bulletin-of-the-atomic-scientists; https://thebulletin.org/wp-content/uploads/2026/04/Advertising-kit-1.pdf; https://igfn.us/form/Q_JW1A; https://igfn.us/form/Q_JW1A; https://thebulletin.org/store/#footer_menu_itm (+5 more)

265 link(s) with descriptive text

296 links

7 empty

1 generic text

15 new tab

0 empty buttons

Element	Text	Issue	Suggested Fix
https://igfn.us/form/0r-Q2Q	Donate	new tab	Add '(opens in new tab)' to text
https://www.facebook.com/BulletinOfTheAt…	Faceebok Icon	new tab	Add '(opens in new tab)' to text
https://bsky.app/profile/thebulletin.org	Bluesky Icon	new tab	Add '(opens in new tab)' to text
https://www.instagram.com/bulletinofthea…	Instagram Icon	new tab	Add '(opens in new tab)' to text
https://www.youtube.com/channel/UCaeUKy8…	YouTube Icon	new tab	Add '(opens in new tab)' to text
https://www.linkedin.com/company/bulleti…	LinkedIn Icon	new tab	Add '(opens in new tab)' to text
https://thebulletin.org/wp-content/uploa…	Advertise	new tab	Add '(opens in new tab)' to text
https://thebulletin.org/tag/iran/	(empty)	empty	Add link text or aria-label
https://thebulletin.org/2026/04/ai-polic…	AI policy is built for oversig…	img no alt	Add alt attribute to the image
https://thebulletin.org/2026/04/what-the…	What the historically low snow…	img no alt	Add alt attribute to the image
https://thebulletin.org/2026/04/its-just…	‘It’s just madness’: Tru…	img no alt	Add alt attribute to the image
https://thebulletin.org/2026/04/ai-polic…	AI policy is built for oversig…	img no alt	Add alt attribute to the image
https://thebulletin.org/2026/04/what-the…	What the historically low snow…	img no alt	Add alt attribute to the image
https://thebulletin.org/2026/04/its-just…	‘It’s just madness’: Tru…	img no alt	Add alt attribute to the image
https://igfn.us/form/Q_JW1A	Apr. 2026 Fundraising (2) — …	new tab	Add '(opens in new tab)' to text
https://igfn.us/form/Q_JW1A	Apr. 2026 Fundraising (2) — …	new tab	Add '(opens in new tab)' to text
https://thebulletin.org/2026/03/fukushim…	Fukushima at 15: Living with r…	img no alt	Add alt attribute to the image
https://thebulletin.org/the-ai-power-tri…	Read more	generic text	Replace with descriptive text
Before: Read more Suggested: The Ai Power Trip
https://thebulletin.org/arts-science-ini…	(empty)	empty	Add link text or aria-label
https://thebulletin.org/next-generation-…	(empty)	empty	Add link text or aria-label
https://thebulletin.org/pathogens-projec…	(empty)	empty	Add link text or aria-label
https://thebulletin.org/arts-science-ini…	(empty)	empty	Add link text or aria-label
https://thebulletin.org/next-generation-…	(empty)	empty	Add link text or aria-label
https://thebulletin.org/pathogens-projec…	(empty)	empty	Add link text or aria-label
https://thebulletin.org/2026/04/building…	Building an audio experience f…	img no alt	Add alt attribute to the image
https://thebulletin.org/store/#footer_me…	Store	new tab	Add '(opens in new tab)' to text
https://thebulletin.org/wp-content/uploa…	Advertise	new tab	Add '(opens in new tab)' to text
https://www.facebook.com/BulletinOfTheAt…	Facebook	new tab	Add '(opens in new tab)' to text
https://www.linkedin.com/company/bulleti…	LinkedIn	new tab	Add '(opens in new tab)' to text
https://www.instagram.com/bulletinofthea…	Instagram	new tab	Add '(opens in new tab)' to text
https://twitter.com/BulletinAtomic#foote…	Twitter	new tab	Add '(opens in new tab)' to text

271 links and buttons have descriptive text

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

https://thebulletin.org/tag/iran/; https://thebulletin.org/arts-science-initiative/; https://thebulletin.org/next-generation-program/; https://thebulletin.org/pathogens-project/; https://thebulletin.org/arts-science-initiative/; https://thebulletin.org/next-generation-program/; https://thebulletin.org/pathogens-project/

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://thebulletin.org/the-ai-power-trip/ ("Read 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://thebulletin.org/2026/04/ai-policy-is-built-for-oversight-not-crisis-t…"]; a[href="https://thebulletin.org/2026/04/what-the-historically-low-snowpack-in-the-ame…"]; a[href="https://thebulletin.org/2026/04/its-just-madness-trump-administration-to-clos…"]; a[href="https://thebulletin.org/2026/04/ai-policy-is-built-for-oversight-not-crisis-t…"]; a[href="https://thebulletin.org/2026/04/what-the-historically-low-snowpack-in-the-ame…"]; a[href="https://thebulletin.org/2026/04/its-just-madness-trump-administration-to-clos…"]; a[href="https://thebulletin.org/2026/03/fukushima-at-15-living-with-radioactive-hot-s…"]; a[href="https://thebulletin.org/2026/04/building-an-audio-experience-for-the-bulletin…"]

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://igfn.us/form/0r-Q2Q; https://www.facebook.com/BulletinOfTheAtomicScientists; https://bsky.app/profile/thebulletin.org; https://www.instagram.com/bulletinoftheatomicscientists/; https://www.youtube.com/channel/UCaeUKy8bDzOu2DH5c006NbQ; https://www.linkedin.com/company/bulletin-of-the-atomic-scientists; https://thebulletin.org/wp-content/uploads/2026/04/Advertising-kit-1.pdf; https://igfn.us/form/Q_JW1A; https://igfn.us/form/Q_JW1A; https://thebulletin.org/store/#footer_menu_itm (+5 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

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.

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

2 navigation landmark(s) detected

Hamburger menu detected (responsive design)

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 2 <nav> element(s)

Hamburger Menu

Sticky Navigation Cannot reliably detect (CSS-based)

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

Landmark Structure

4 landmarks

REVIEW

4 landmarks

<main> landmark present

2 <nav> landmark(s) found

1 of 2 <nav> elements are unlabeled

Multiple navigations need aria-label to distinguish them for screen readers.

No banner (header) landmark

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

Multiple navigations need aria-label to distinguish them for screen readers.

Why this matters

Some <nav> elements lack aria-label — screen-reader users hear 'navigation' multiple times with no way to distinguish them.

Learn more ▾

When a page has multiple <nav> regions (primary, footer, breadcrumb), each needs aria-label or aria-labelledby. AT users navigate by landmark; identical 'navigation' announcements force them to enter each one to discover purpose.

Source: WAI-ARIA Authoring Practices

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

Heading Hierarchy

48 headings

REVIEW

48 headings

No H1 heading found

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

H3 Analysis: Iran likely transferred highly enriched uranium to Isfahan before the June strikes
H3 Space-based missile defense: Golden Dome or gold brick?
H3 On this day in climate history: Why it’s important to look back to move forward
H3 AI policy is built for oversight, not crisis. That needs to change
H3 What the historically low snowpack in the American West means for water and wildfire this summer
H3 Taking a sledgehammer to the nuclear nonproliferation regime
H3 It seems Washington needs to be reminded of the Nuclear Non-Proliferation Treaty
H3 ‘It’s just madness’: Trump administration to close three-quarters of Forest Service research stations
H3 Python Cave tours? The ways disease jumps from animals to humans are evolving
H3 What this Norwegian ‘close call’ says about a world without New START
H3 When the war in Iran comes home: Why the US isn’t ready for increasing hybrid threats
H2 How to counter health misinformation when it’s coming from the top
H2 AI policy is built for oversight, not crisis. That needs to change
H2 Taking a sledgehammer to the nuclear nonproliferation regime
H2 Analysis: Iran likely transferred highly enriched uranium to Isfahan before the June strikes
H2 United States nuclear weapons, 2026
H2 Space-based missile defense: Golden Dome or gold brick?
H2 On this day in climate history: Why it’s important to look back to move forward
H2 What the historically low snowpack in the American West means for water and wildfire this summer
H2 It seems Washington needs to be reminded of the Nuclear Non-Proliferation Treaty
H2 ‘It’s just madness’: Trump administration to close three-quarters of Forest Service research stations
H2 Python Cave tours? The ways disease jumps from animals to humans are evolving
H2 Recent highlights
H2 What a recent court win reveals about the Trump administration’s unlawful attacks on climate science
H2 The Iran conflict edges the world closer to a new drone arms race
H2 AI in the information ecosystem and its impact on nuclear escalation
H2 Fukushima at 15: Living with radioactive hot spots and stigma as Japan’s government pushes for more reactors
H2 Bulletin initiatives
H3 The AI Power Trip
H3 Arts + Science Initiative
H3 Next Generation Initiative
H3 Pathogens Project
H3 Arts Science Initiative
H3 Next Generation Initiative
H3 Pathogens Project
H2 The Bulletin interactive
H2 Tracking the Trump administration on existential risk
H2 Virtual Tour: Turn Back the Clock
H2 Global Biolabs Map
H2 Nuclear Arsenals of the World
H2 Doomsday Clock Timeline
H2 What's new at the Bulletin
H2 Building an audio experience for the Bulletin’s journalism
H2 Announcing the 2025 Rieser Award recipient
H2 PRESS RELEASE: It is 85 seconds to midnight
H2 Don't miss an update
H2 Support our nonprofit's mission
H2 Don't miss an update

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

Action

HTTP 404, custom page

REVIEW

HTTP 404, custom page

Correct 404 status code returned

Got: HTTP 404

Custom styled 404 page

404 Page Quality ✓ Custom 404 Page

Status Code HTTP 404 ✓Page Title Page not found - Bulletin of the Atomic Scientists ✓Custom Styling ✓Navigation ✗Homepage Link ✗Search Form ✗

Favicon & Branding

Action

3 icon(s) detected

REVIEW

3 icon(s) detected

No favicon.ico at site root

Some older browsers, bookmark tools, and RSS readers look for /favicon.ico. Add one as a fallback.

HTML icon links detected

Apple touch icon present

Multiple icon sizes detected

✗ favicon.ico Missing

✓ PNG Icons Present

✓ Apple Touch Present

✗ SVG Favicon Missing

✗ Manifest Icons Missing

✓ Multiple Sizes Present

Color Contrast (Screenshot)

Action

20 text elements analyzed, 9 fail WCAG AA

REVIEW

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

11 pass 9 fail WCAG AA

h3 The AI Power Trip

2.13:1

#000000

#851717

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Arts + Science Initiative

2.13:1

#000000

#851717

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Next Generation Initiative

2.13:1

#000000

#851717

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Pathogens Project

2.13:1

#000000

#851717

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Arts Science Initiative

2.13:1

#000000

#851717

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Next Generation Initiative

2.13:1

#000000

#851717

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Pathogens Project

2.13:1

#000000

#851717

needs 3.0:1 (large text)

19px · bottom of viewport

title Bulletin of the Atomic Scientists

2.13:1

#000000

#851618

needs 4.5:1 (normal text)

16px · top of page (header area)

button Preferences

1.00:1

#FFFFFF

needs 4.5:1 (normal text)

16px · above the fold

Show all checked elements (20)

Element	Ratio	Required	FG	BG	Result
h3 The AI Power Trip	2.13:1	3.0:1	#000000	#851717	Fail
h3 Arts + Science Initi…	2.13:1	3.0:1	#000000	#851717	Fail
h3 Next Generation Init…	2.13:1	3.0:1	#000000	#851717	Fail
h3 Pathogens Project	2.13:1	3.0:1	#000000	#851717	Fail
h3 Arts Science Initiat…	2.13:1	3.0:1	#000000	#851717	Fail
h3 Next Generation Init…	2.13:1	3.0:1	#000000	#851717	Fail
h3 Pathogens Project	2.13:1	3.0:1	#000000	#851717	Fail
title Bulletin of the Atom…	2.13:1	4.5:1	#000000	#851618	Fail
div We use essential coo…	9.32:1	4.5:1	#000000	#CEA2A3	Pass
span Cookie Policy	20.29:1	4.5:1	#000000	#FBFBFB	Pass
div . You can change you…	21.00:1	4.5:1	#000000	#FFFFFF	Pass
span Preferences	21.00:1	4.5:1	#000000	#FFFFFF	Pass
div .”	20.47:1	4.5:1	#000000	#FCFCFC	Pass
button Preferences	1.00:1	4.5:1	#FFFFFF	#FFFFFF	Fail
button Accept	21.00:1	4.5:1	#000000	#FFFFFF	Pass
a About	21.00:1	4.5:1	#000000	#FFFFFF	Pass
a Magazine	21.00:1	4.5:1	#000000	#FFFFFF	Pass
a Events	21.00:1	4.5:1	#000000	#FFFFFF	Pass
a Contact	21.00:1	4.5:1	#000000	#FFFFFF	Pass
a Store	20.65:1	4.5:1	#000000	#FDFDFD	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.

Alt Text Quality

All 48 images OK

PASS

All 48 images OK

5 image(s) with alt text over 125 characters

10 decorative image(s) correctly marked

33 image(s) with good alt text

48 images 33 good alt text 10 decorative

Issue	Count
too long	5 image(s)

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-inpt	text	Search Form	for/id
#search-inpt_navbarCollapse	text	Search Form	for/id

Lighthouse Accessibility Audits

Score 90/100 — 3 failing, 26 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.

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
Doomsday Clock Statement `div.menu-footer-menu-doomsday-clock-container > ul#menu-footer-menu-doomsday-clock > li#menu-item-22387 > a`
The Clock Setters `div.menu-footer-menu-doomsday-clock-container > ul#menu-footer-menu-doomsday-clock > li#menu-item-119003 > a`
Timeline `div.menu-footer-menu-doomsday-clock-container > ul#menu-footer-menu-doomsday-clock > li#menu-item-22260 > a`
FAQ `div.menu-footer-menu-doomsday-clock-container > ul#menu-footer-menu-doomsday-clock > li#menu-item-10810 > a`
Virtual Tour `div.menu-footer-menu-doomsday-clock-container > ul#menu-footer-menu-doomsday-clock > li#menu-item-121746 > a`
Doomsday Clock Playlist `div.menu-footer-menu-doomsday-clock-container > ul#menu-footer-menu-doomsday-clock > li#menu-item-93781 > a`
Nuclear Risk `div.menu-footer-menu-featured-topics-container > ul#menu-footer-menu-featured-topics > li#menu-item-10146 > a`
Climate Change `div.menu-footer-menu-featured-topics-container > ul#menu-footer-menu-featured-topics > li#menu-item-10147 > a`
Disruptive Technologies `div.menu-footer-menu-featured-topics-container > ul#menu-footer-menu-featured-topics > li#menu-item-10148 > a`
Biosecurity `div.menu-footer-menu-featured-topics-container > ul#menu-footer-menu-featured-topics > li#menu-item-121748 > a`
Nuclear Notebook `div.menu-footer-menu-featured-topics-container > ul#menu-footer-menu-featured-topics > li#menu-item-121749 > a`
What’s new at the Bulletin `div.menu-footer-menu-featured-topics-container > ul#menu-footer-menu-featured-topics > li#menu-item-121750 > a`
Bulletin `ul#menu-footer-menu-featured-topics > li#menu-item-121750 > a > em`
Login `div.menu-footer-menu-magazine-container > ul#menu-footer-menu-magazine > li#menu-item-121756 > a`
Current Magazine Issue `div.menu-footer-menu-magazine-container > ul#menu-footer-menu-magazine > li#menu-item-121752 > a`
Subscribe to the Magazine `div.menu-footer-menu-magazine-container > ul#menu-footer-menu-magazine > li#menu-item-121753 > a`
My Account `div.menu-footer-menu-magazine-container > ul#menu-footer-menu-magazine > li#menu-item-121751 > a`
Magazine Archive `div.menu-footer-menu-magazine-container > ul#menu-footer-menu-magazine > li#menu-item-121755 > a`
Magazine FAQ `div.menu-footer-menu-magazine-container > ul#menu-footer-menu-magazine > li#menu-item-121754 > a`
Magazine Covers `div.menu-footer-menu-magazine-container > ul#menu-footer-menu-magazine > li#menu-item-92105 > a`
Ways To Give `div.menu-footer-menu-support-our-work-container > ul#menu-footer-menu-support-our-work > li#menu-item-128167 > a`
Give Now `div.menu-footer-menu-support-our-work-container > ul#menu-footer-menu-support-our-work > li#menu-item-128132 > a`
What Your Gift Supports `div.menu-footer-menu-support-our-work-container > ul#menu-footer-menu-support-our-work > li#menu-item-128137 > a`
Annual Event `div.menu-footer-menu-support-our-work-container > ul#menu-footer-menu-support-our-work > li#menu-item-126087 > a`
Einstein Circle `div.menu-footer-menu-support-our-work-container > ul#menu-footer-menu-support-our-work > li#menu-item-128136 > a`
Legacy Society `div.menu-footer-menu-support-our-work-container > ul#menu-footer-menu-support-our-work > li#menu-item-128135 > a`
Donor-Advised Fund `div.menu-footer-menu-support-our-work-container > ul#menu-footer-menu-support-our-work > li#menu-item-128134 > a`
Store `div.menu-footer-menu-support-our-work-container > ul#menu-footer-menu-support-our-work > li#menu-item-75156 > a`
Our Mission `div.menu-footer-menu-about-container > ul#menu-footer-menu-about > li#menu-item-10397 > a`
Leadership `div.menu-footer-menu-about-container > ul#menu-footer-menu-about > li#menu-item-10408 > a`
Staff `div.menu-footer-menu-about-container > ul#menu-footer-menu-about > li#menu-item-10398 > a`
Events `div.menu-footer-menu-about-container > ul#menu-footer-menu-about > li#menu-item-121741 > a`
Editorial Independence Policy `div.menu-footer-menu-about-container > ul#menu-footer-menu-about > li#menu-item-10402 > a`
Annual Report `div.menu-footer-menu-about-container > ul#menu-footer-menu-about > li#menu-item-10399 > a`
Pathogens Project `div.menu-footer-menu-about-container > ul#menu-footer-menu-about > li#menu-item-121744 > a`
Arts + Science Initiative `div.menu-footer-menu-about-container > ul#menu-footer-menu-about > li#menu-item-121740 > a`
Next Generation Initiative `div.menu-footer-menu-about-container > ul#menu-footer-menu-about > li#menu-item-121742 > a`
Open Positions `div.menu-footer-menu-about-container > ul#menu-footer-menu-about > li#menu-item-92713 > a`
Send us a Tip `div.menu-footer-menu-contact-us-container > ul#menu-footer-menu-contact-us > li#menu-item-121745 > a`
Write for Us `div.menu-footer-menu-contact-us-container > ul#menu-footer-menu-contact-us > li#menu-item-10406 > a`
Permissions & Copyrights `div.menu-footer-menu-contact-us-container > ul#menu-footer-menu-contact-us > li#menu-item-10407 > a`
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Support Us `div.menu-footer-menu-contact-us-container > ul#menu-footer-menu-contact-us > li#menu-item-55590 > a`
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Email Courses `div.menu-footer-menu-stay-connected-container > ul#menu-footer-menu-stay-connected > li#menu-item-126290 > a`
Facebook `div.menu-footer-menu-stay-connected-container > ul#menu-footer-menu-stay-connected > li#menu-item-10409 > a`
Bluesky `div.menu-footer-menu-stay-connected-container > ul#menu-footer-menu-stay-connected > li#menu-item-118020 > a`
LinkedIn `div.menu-footer-menu-stay-connected-container > ul#menu-footer-menu-stay-connected > li#menu-item-10412 > a`
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These are opportunities to improve the legibility of your content.

Names and labels

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.fl-module > div.fl-module-content > div.fl-html > iframe `div.fl-module > div.fl-module-content > div.fl-html > iframe`

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
nav.navbar > div.content-nav > div.second-logo > a `nav.navbar > div.content-nav > div.second-logo > a`
div.fl-module-content > div.uabb-module-content > div.uabb-infobox-left-right-wrap > a.uabb-infobox-module-link `div.fl-module-content > div.uabb-module-content > div.uabb-infobox-left-right-wrap > a.uabb-infobox-module-link`
div.fl-module > div.fl-module-content > div.uabb-module-content > a.uabb-infobanner-module-link `div.fl-module > div.fl-module-content > div.uabb-module-content > a.uabb-infobanner-module-link`
div.fl-module > div.fl-module-content > div.uabb-module-content > a.uabb-infobanner-module-link `div.fl-module > div.fl-module-content > div.uabb-module-content > a.uabb-infobanner-module-link`
div.fl-module > div.fl-module-content > div.uabb-module-content > a.uabb-infobanner-module-link `div.fl-module > div.fl-module-content > div.uabb-module-content > a.uabb-infobanner-module-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

●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.

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

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

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

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

●Elements use only permitted ARIA attributes

●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

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

○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

○`<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.

○Identical links have the same purpose.

○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.