Skip to content
https://aaas.org

Accessibility

· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.
SCORE
60
GRADE
D
FIX
5
REVIEW
5
PASS
3
INFO
0
Checks
13
3 PASS 5 REVIEW 5 FIX
F
Heading Hierarchy
Action
37 headings, 5 skip(s)
FIX
37 headings, 5 skip(s)
Info::
Single H1 present
Warning::
Heading level skipped: H2 → H4 (missing H3)
Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.
Warning::
Heading level skipped: H2 → H4 (missing H3)
Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.
Warning::
Heading level skipped: H2 → H4 (missing H3)
Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.
Warning::
Heading level skipped: H2 → H4 (missing H3)
Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.
Warning::
Heading level skipped: H1 → H3 (missing H2)
Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.
Warning::
2 empty heading(s)
Empty headings appear in the document outline but provide no information.
  • H2 WHO WE ARE
  • H4 Explore Our Programs skipped
  • H2 WHAT WE DO
  • H4 Resource Center skipped
  • H2 GET INVOLVED
  • H4 Support AAAS skipped
  • H2 MEMBERSHIP
  • H4 Quick Links skipped
  • H4 External Links
  • H1 (empty)
  • H3 (empty)
  • H4 Read the Latest Issue of Science
  • H4 AAAS letter informs April 2026 House hearing on state of scientific publishing
  • H4 FY 2027 R&D Appropriations Dashboard
  • H4 FY 2027 R&D Appropriations: Report on the Presidential Budget Request
  • H4 AAAS Statement on U.S. Administration’s FY27 Budget Request
  • H4 FY 2026 R&D Appropriations: Final R&D Report
  • H4 AAAS welcomes 449 scientists and engineers as Honorary Fellows
  • H4 Researcher wins women’s health prize for work redefining patient care in early pregnancy loss
  • H4 Prize winner’s research reprograms tumor cells to trigger antitumor immunity
  • H4 AAAS unveils the AAAS Learning Hub to equip STEMM professionals with skills for today’s world
  • H4 A new vanguard of science writing emerges in the Global South
  • H4 Speaking Up for the U.S. Scientific Enterprise – Resources, Support & Latest News
  • H4 External Sites
  • H3 OUR MEMBERS
  • H2 Site Footer
  • H3 Support AAAS
  • H4 Dan and Kathy Monroe: Remembering a Passionate Champion for Science
  • H4 Jean E. Taylor: A Lifetime of Unique Contributions
  • H4 Leaving a Legacy to AAAS
  • H4 Dan and Kathy Monroe: Remembering a Passionate Champion for Science
  • H4 Jean E. Taylor: A Lifetime of Unique Contributions
  • H4 Leaving a Legacy to AAAS
  • H4 Dan and Kathy Monroe: Remembering a Passionate Champion for Science
  • H4 Jean E. Taylor: A Lifetime of Unique Contributions
  • H4 Useful Links
  • H4 Focus Areas

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

Why this matters

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

Learn more

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

Source: WCAG 2.1 SC 1.3.1 / W3C WAI

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

Why this matters

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

Learn more

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

Source: WCAG 2.1 SC 1.3.1 / W3C WAI

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

Why this matters

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

Learn more

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

Source: WCAG 2.1 SC 1.3.1 / W3C WAI

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

Why this matters

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

Learn more

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

Source: WCAG 2.1 SC 1.3.1 / W3C WAI

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

Why this matters

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

Learn more

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

Source: WCAG 2.1 SC 1.3.1 / W3C WAI

Empty headings appear in the document outline but provide no information.

Why this matters

Empty <hN> tags break the document outline — screen-reader users navigating by heading hit dead silence.

Source: WCAG 2.4.6

D
Dark Mode Support
Action
No dark mode signals
FIX
No dark mode signals
Info::
No dark mode signals detected
Consider adding CSS with @media (prefers-color-scheme: dark) and <meta name='color-scheme' content='light dark'>.
Info::
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.

D
Print Stylesheet
Action
No print styles
FIX
No print styles
Info::
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
D
Navigation UX
Action
2 navigation pattern(s)
FIX
2 navigation pattern(s)
Info::
Search functionality detected
Got: role-search
Info::
Skip navigation link detected
Info::
4 navigation landmark(s) detected
Breadcrumbs
Search role='search' landmark
Skip Link Skip link detected
Labeled Navigation 4 <nav> element(s)
Back to Top
Hamburger Menu
Sticky Navigation Cannot reliably detect (CSS-based)
3 of 6 testable patterns navigation patterns detected. Strong navigation UX with multiple discovery paths.
C
Landmark Structure
Action
15 landmarks
REVIEW
15 landmarks
Critical::
No <main> landmark found
Screen reader users cannot quickly navigate to the primary content. Wrap your main content in <main>.
Info::
4 <nav> landmark(s) found
Warning::
3 of 4 <nav> elements are unlabeled
Multiple navigations need aria-label to distinguish them for screen readers.
Info::
Skip navigation link present
Info::
Search landmark present
Page Structure — as a screen reader sees it
BANNER header NAV SEARCH MAIN (missing!) CONTENTINFO footer

Screen reader users cannot quickly navigate to the primary content. Wrap your main content in <main>.

Why this matters

Without a <main> landmark, screen-reader users can't skip past the navigation to the page content — every page starts with re-reading the menu.

Learn more

The <main> element marks the page's primary content area. Assistive tech offers a 'jump to main' shortcut — but only if <main> exists. Without it, every page navigation forces re-reading the header. Wrap your primary content in a single <main>.

Source: WAI-ARIA / WCAG 2.4.1

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

C
Favicon & Branding
Action
4 icon(s) detected
REVIEW
4 icon(s) detected
Info::
favicon.ico present at site root
Info::
HTML icon links detected
Info::
No apple-touch-icon detected
iOS devices use this when users add your site to their home screen. Add <link rel='apple-touch-icon' sizes='180x180' href='/apple-touch-icon.png'>.
Info::
Multiple icon sizes detected
favicon.ico Present
PNG Icons Present
Apple Touch Missing
SVG Favicon Missing
Manifest Icons Present
Multiple Sizes Present
C
Web Manifest
Action
Valid manifest
REVIEW
Valid manifest
Info::
Name present: AAAS
Info::
192x192 icon present
Info::
512x512 icon present
PWA Install Criteria Not Installable
Name AAAS 192×192 icon 512×512 icon Start URL Display Mode
Name AAAS Theme Color #ffffff Icons 2 icon(s)
C
Color Contrast (Screenshot)
Action
20 text elements analyzed, 16 fail WCAG AA
REVIEW

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

4 pass 16 fail WCAG AA 1 pass AA only
h2 WHO WE ARE
1.40:1
#000000
on
#122937
needs 3.0:1 (large text)
24px · bottom of viewport
h2 WHAT WE DO
1.40:1
#000000
on
#122937
needs 3.0:1 (large text)
24px · bottom of viewport
h2 GET INVOLVED
1.40:1
#000000
on
#122937
needs 3.0:1 (large text)
24px · bottom of viewport
h2 MEMBERSHIP
1.40:1
#000000
on
#122937
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Site Footer
1.40:1
#000000
on
#122937
needs 3.0:1 (large text)
24px · bottom of viewport
h3 OUR MEMBERS
1.40:1
#000000
on
#122937
needs 3.0:1 (large text)
19px · bottom of viewport
h3 Support AAAS
1.40:1
#000000
on
#122937
needs 3.0:1 (large text)
19px · bottom of viewport
title AAAS Home | American Association for the…
1.40:1
#000000
on
#122937
needs 4.5:1 (normal text)
16px · top of page (header area)
span Opens in a new window
1.40:1
#000000
on
#122937
needs 4.5:1 (normal text)
16px · top of page (header area)
span Opens an external website
1.65:1
#000000
on
#083459
needs 4.5:1 (normal text)
16px · top of page (header area)
span Opens an external website in a new windo…
1.65:1
#000000
on
#083459
needs 4.5:1 (normal text)
16px · top of page (header area)
span This website utilizes technologies such …
1.65:1
#000000
on
#083459
needs 4.5:1 (normal text)
16px · above the fold
span You may change your settings at any time…
1.65:1
#000000
on
#083459
needs 4.5:1 (normal text)
16px · above the fold
span You may close this banner to continue wi…
1.65:1
#000000
on
#083459
needs 4.5:1 (normal text)
16px · above the fold
span Analytics
1.40:1
#000000
on
#122937
needs 4.5:1 (normal text)
16px · above the fold
button Save
1.40:1
#000000
on
#122937
needs 4.5:1 (normal text)
16px · above the fold
Show all checked elements (20)
ElementRatioRequiredFGBGResult
h2 WHO WE ARE1.40:13.0:1
#000000
#122937
Fail
h2 WHAT WE DO1.40:13.0:1
#000000
#122937
Fail
h2 GET INVOLVED1.40:13.0:1
#000000
#122937
Fail
h2 MEMBERSHIP1.40:13.0:1
#000000
#122937
Fail
h2 Site Footer1.40:13.0:1
#000000
#122937
Fail
h3 OUR MEMBERS1.40:13.0:1
#000000
#122937
Fail
h3 Support AAAS1.40:13.0:1
#000000
#122937
Fail
title AAAS Home | American…1.40:14.5:1
#000000
#122937
Fail
span Opens in a new windo…1.40:14.5:1
#000000
#122937
Fail
span Opens an external we…1.65:14.5:1
#000000
#083459
Fail
span Opens an external we…1.65:14.5:1
#000000
#083459
Fail
span This website utilize…1.65:14.5:1
#000000
#083459
Fail
span You may change your …1.65:14.5:1
#000000
#083459
Fail
span You may close this b…1.65:14.5:1
#000000
#083459
Fail
a Privacy Policy5.45:14.5:1
#000000
#6B859B
Pass
a Storage Preferences21.00:14.5:1
#000000
#FFFFFF
Pass
span Targeted Advertising21.00:14.5:1
#000000
#FFFFFF
Pass
span Personalization21.00:14.5:1
#000000
#FFFFFF
Pass
span Analytics1.40:14.5:1
#000000
#122937
Fail
button Save1.40:14.5:1
#000000
#122937
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.

C
Lighthouse Accessibility Audits
Action
Score 79/100 — 6 failing, 26 passed
REVIEW
79

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.

ARIA

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
GIVE RESOURCE CENTER PROGRAMS NEWS MEMBER LOGIN JOIN div.col-md-10 > div.aa-site-quick-links > div.aa-site-quick-links__link-set > ul.aa-site-quick-links__link-list
202-326-6400 Contact Us About Us div.container > div.row > div.col-md-6 > ul.aa-links-unordered
Membership Careers at AAAS AAAS Community Privacy Policy Terms of Use Cookie Pr… div.col-md-6 > div.row > div.col-xs-6 > ul.aa-site-footer-menu__links
Science Education Science Diplomacy Public Engagement Careers in STEM div.col-xs-6 > div.row > div.col-xs-12 > ul.aa-site-footer-menu__links
Shaping Science Policy Advocacy for Evidence R&D Budget Analysis Human Rights, … div.col-xs-6 > div.row > div.col-xs-12 > ul.aa-site-footer-menu__links

Some ARIA child roles must be contained by specific parent roles to properly perform their intended accessibility functions. Learn more about ARIA roles and required parent element.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Mission and History div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Our Programs div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
AAAS News div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Science Journals div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Governance div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
AAAS Fellows div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Awards div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Annual Report div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Careers at AAAS div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Contact Us div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
OUR FOCUS AREAS div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Advocacy for Evidence li.aa-site-nav__list-item > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Careers in STEM li.aa-site-nav__list-item > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Federal Science Budget Analysis li.aa-site-nav__list-item > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Human Rights, Ethics & Law li.aa-site-nav__list-item > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Inclusivity for Excellence li.aa-site-nav__list-item > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Public Engagement li.aa-site-nav__list-item > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Science Diplomacy li.aa-site-nav__list-item > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Science Education li.aa-site-nav__list-item > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Shaping Science Policy li.aa-site-nav__list-item > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Membership div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Support AAAS div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Fellowships div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Careers div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Training Sessions div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Awards div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Annual Meeting div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Why Join div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Become a Member div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Gift a Membership div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Renew div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Member Benefits div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
AAAS Community div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
Connect div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
FAQ & Support div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
MEMBER LOGIN div.aa-site-nav__submenu-col > ul.aa-site-nav__links > li.aa-site-nav__list-item > a.aa-fs--16-d
GIVE div.aa-site-quick-links__link-set > ul.aa-site-quick-links__link-list > li > a.aa-fs--14-d-uc
RESOURCE CENTER div.aa-site-quick-links__link-set > ul.aa-site-quick-links__link-list > li > a.aa-fs--14-d-uc
PROGRAMS div.aa-site-quick-links__link-set > ul.aa-site-quick-links__link-list > li > a.aa-fs--14-d-uc
NEWS div.aa-site-quick-links__link-set > ul.aa-site-quick-links__link-list > li > a.aa-fs--14-d-uc
MEMBER LOGIN div.aa-site-quick-links__link-set > ul.aa-site-quick-links__link-list > li > a.aa-fs--14-d-uc
JOIN div.aa-site-quick-links__link-set > ul.aa-site-quick-links__link-list > li > a.aa-fs--14-d-uc
AAAS COMMUNITIES div.aa-site-external-links__link-set > ul.aa-site-external-links__link-list > li.aa-site-external-links__list-item > a.aa-teaser-string
SCIENCE CAREERS div.aa-site-external-links__link-set > ul.aa-site-external-links__link-list > li.aa-site-external-links__list-item > a.aa-teaser-string
SCIENCE FAMILY OF JOURNALS div.aa-site-external-links__link-set > ul.aa-site-external-links__link-list > li.aa-site-external-links__list-item > a.aa-teaser-string
MORE AAAS SITES div.aa-site-external-links__link-set > ul.aa-site-external-links__link-list > li.aa-site-external-links__list-item > a.aa-teaser-string

ARIA roles must have valid values in order to perform their intended accessibility functions. Learn more about valid ARIA roles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Membership div.col-xs-6 > ul.aa-site-footer-menu__links > li > a
Careers at AAAS div.col-xs-6 > ul.aa-site-footer-menu__links > li > a
AAAS Community div.col-xs-6 > ul.aa-site-footer-menu__links > li > a
Privacy Policy div.col-xs-6 > ul.aa-site-footer-menu__links > li > a
Terms of Use div.col-xs-6 > ul.aa-site-footer-menu__links > li > a
Cookie Preferences div.col-xs-6 > ul.aa-site-footer-menu__links > li > a.cookiePrefsLinkNoWidget
Science Education div.col-xs-12 > ul.aa-site-footer-menu__links > li > a
Science Diplomacy div.col-xs-12 > ul.aa-site-footer-menu__links > li > a
Public Engagement div.col-xs-12 > ul.aa-site-footer-menu__links > li > a
Careers in STEM div.col-xs-12 > ul.aa-site-footer-menu__links > li > a
Shaping Science Policy div.col-xs-12 > ul.aa-site-footer-menu__links > li > a
Advocacy for Evidence div.col-xs-12 > ul.aa-site-footer-menu__links > li > a
R&D Budget Analysis div.col-xs-12 > ul.aa-site-footer-menu__links > li > a
Human Rights, Ethics & Law div.col-xs-12 > ul.aa-site-footer-menu__links > li > a

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Navigation

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Explore Our Programs div.aa-teaser-promo__inset > header.aa-teaser-promo__header > div.aa-teaser-promo__header-inset > h4#explore-our-programs
Resource Center div.aa-teaser-promo__inset > header.aa-teaser-promo__header > div.aa-teaser-promo__header-inset > h4#explore-our-programs
Support AAAS div.aa-teaser-promo__inset > header.aa-teaser-promo__header > div.aa-teaser-promo__header-inset > h4#explore-our-programs
QUICK LINKS div.col-md-10 > div.aa-site-quick-links > div.aa-site-quick-links__link-set > h4#site-quick-links
div.row > div.col-xs-12 > header.aa-block-page-header > h3 div.row > div.col-xs-12 > header.aa-block-page-header > h3

These are opportunities to improve keyboard navigation in your application.

Names and labels

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.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a
div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a
div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a
div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a
div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a
div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a
div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a
div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a
div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a
div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a
div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a
div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a div.aa-teaser-card__inset > div.aa-teaser-card__figure > figure > a
div.aa-teaser-circle-photo__wrap > figure > p > a.aa-teaser-circle-photo__figure div.aa-teaser-circle-photo__wrap > figure > p > a.aa-teaser-circle-photo__figure
div.aa-teaser-circle-photo__wrap > figure > p > a.aa-teaser-circle-photo__figure div.aa-teaser-circle-photo__wrap > figure > p > a.aa-teaser-circle-photo__figure
div.aa-teaser-circle-photo__wrap > figure > p > a.aa-teaser-circle-photo__figure div.aa-teaser-circle-photo__wrap > figure > p > a.aa-teaser-circle-photo__figure

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.

Tables and lists

Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
GIVE div.aa-site-quick-links > div.aa-site-quick-links__link-set > ul.aa-site-quick-links__link-list > li
RESOURCE CENTER div.aa-site-quick-links > div.aa-site-quick-links__link-set > ul.aa-site-quick-links__link-list > li
PROGRAMS div.aa-site-quick-links > div.aa-site-quick-links__link-set > ul.aa-site-quick-links__link-list > li
NEWS div.aa-site-quick-links > div.aa-site-quick-links__link-set > ul.aa-site-quick-links__link-list > li
MEMBER LOGIN div.aa-site-quick-links > div.aa-site-quick-links__link-set > ul.aa-site-quick-links__link-list > li
JOIN div.aa-site-quick-links > div.aa-site-quick-links__link-set > ul.aa-site-quick-links__link-list > li
202-326-6400 div.row > div.col-md-6 > ul.aa-links-unordered > li.aa-links-unordered__list-item
Contact Us div.row > div.col-md-6 > ul.aa-links-unordered > li.aa-links-unordered__list-item
About Us div.row > div.col-md-6 > ul.aa-links-unordered > li.aa-links-unordered__list-item
Membership div.row > div.col-xs-6 > ul.aa-site-footer-menu__links > li
Careers at AAAS div.row > div.col-xs-6 > ul.aa-site-footer-menu__links > li
AAAS Community div.row > div.col-xs-6 > ul.aa-site-footer-menu__links > li
Privacy Policy div.row > div.col-xs-6 > ul.aa-site-footer-menu__links > li
Terms of Use div.row > div.col-xs-6 > ul.aa-site-footer-menu__links > li
Cookie Preferences div.row > div.col-xs-6 > ul.aa-site-footer-menu__links > li
Science Education div.row > div.col-xs-12 > ul.aa-site-footer-menu__links > li
Science Diplomacy div.row > div.col-xs-12 > ul.aa-site-footer-menu__links > li
Public Engagement div.row > div.col-xs-12 > ul.aa-site-footer-menu__links > li
Careers in STEM div.row > div.col-xs-12 > ul.aa-site-footer-menu__links > li
Shaping Science Policy div.row > div.col-xs-12 > ul.aa-site-footer-menu__links > li
Advocacy for Evidence div.row > div.col-xs-12 > ul.aa-site-footer-menu__links > li
R&D Budget Analysis div.row > div.col-xs-12 > ul.aa-site-footer-menu__links > li
Human Rights, Ethics & Law div.row > div.col-xs-12 > ul.aa-site-footer-menu__links > li

These are opportunities to improve the experience of reading tabular or list data using 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
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
Image elements have `[alt]` attributes
Form elements have associated labels
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
`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
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
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
No element has a `[tabindex]` value greater than 0
Touch targets have sufficient size and spacing.
Document has a main landmark.
Deprecated ARIA roles were not used
ARIA IDs are unique
All heading elements contain content.
Identical links have the same purpose.
`[accesskey]` values are unique
ARIA input fields have accessible names
ARIA `meter` elements have accessible names
ARIA `progressbar` elements have accessible names
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
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
Links are distinguishable without relying on color.
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>`.
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.
A+
Alt Text Quality
All 27 images OK
PASS
All 27 images OK
Info::
26 decorative image(s) correctly marked
Info::
1 image(s) with good alt text
27 images 1 good alt text 26 decorative
All images have appropriate alt text.
A+
Form Accessibility
All 4 controls labeled
PASS
All 4 controls labeled
Info::
4 control(s) properly labeled
4 controls
4 labeled
0 placeholder only
0 unlabeled
ControlTypeLabelMethod
#osano-cm-dialog-toggle--category_MARKETINGcheckboxnone
#osano-cm-dialog-toggle--category_PERSONALIZATIONcheckboxnone
#osano-cm-dialog-toggle--category_ANALYTICScheckboxnone
#site-search-fieldsearchSearchfor/id
A
404 Error Page
HTTP 404, custom page
PASS
HTTP 404, custom page
Info::
Correct 404 status code returned
Got: HTTP 404
Info::
Custom styled 404 page
Info::
Navigation links present on 404 page
Info::
Homepage link present on 404 page
Info::
Search form present on 404 page
404 Page Quality Custom 404 Page
Status Code HTTP 404 Page Title File Not Found (404) | American Association for the Advancement of Science (AAAS) 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.

Send Feedback