Accessibility

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Checks

5 PASS 3 REVIEW 5 FIX

Favicon & Branding

Action

1 icon(s) detected

FIX

1 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

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'>.

✗ favicon.ico Missing

✓ PNG Icons Present

✗ Apple Touch Missing

✗ SVG Favicon Missing

✗ Manifest Icons Missing

✗ Multiple Sizes Missing

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

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

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.

Landmark Structure

3 landmarks

REVIEW

3 landmarks

<main> landmark present

No <nav> landmark found

No contentinfo (footer) 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

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

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 ✓Custom Styling ✓Navigation ✗Homepage Link ✗Search Form ✗

Color Contrast (Screenshot)

Action

20 text elements analyzed, 19 fail WCAG AA

REVIEW

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

1 pass 19 fail WCAG AA

h2 Our mission

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

24px · mid-page

h2 Explore our science in action

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

24px · mid-page

h2 Los Alamos National Lab at a glance

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

24px · bottom of viewport

h2 From the top of the mesa

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Community

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Safety

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Collaborate

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Featured news

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Voices of the Lab

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Start your career with us

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Explore our history

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Bradbury Science Museum

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

24px · bottom of viewport

h2 National Security Research Center

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Manhattan Project National Historic Park

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Follow us

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

24px · bottom of viewport

h3 Dynamic imaging at Los Alamos: Look insi…

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

19px · mid-page

h3 $2.7 million

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

19px · bottom of viewport

h3 LANL experts receive awards from Federal…

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Boston Marathon runners

1.09:1

#000000

#0C0D17

needs 3.0:1 (large text)

19px · bottom of viewport

Show all checked elements (20)

Element	Ratio	Required	FG	BG	Result
h1 The Lab is prepared …	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 Our mission	1.09:1	3.0:1	#000000	#0C0D17	Fail
h2 Explore our science …	1.09:1	3.0:1	#000000	#0C0D17	Fail
h2 Los Alamos National …	1.09:1	3.0:1	#000000	#0C0D17	Fail
h2 From the top of the …	1.09:1	3.0:1	#000000	#0C0D17	Fail
h2 Community	1.09:1	3.0:1	#000000	#0C0D17	Fail
h2 Safety	1.09:1	3.0:1	#000000	#0C0D17	Fail
h2 Collaborate	1.09:1	3.0:1	#000000	#0C0D17	Fail
h2 Featured news	1.09:1	3.0:1	#000000	#0C0D17	Fail
h2 Voices of the Lab	1.09:1	3.0:1	#000000	#0C0D17	Fail
h2 Start your career wi…	1.09:1	3.0:1	#000000	#0C0D17	Fail
h2 Explore our history	1.09:1	3.0:1	#000000	#0C0D17	Fail
h2 Bradbury Science Mus…	1.09:1	3.0:1	#000000	#0C0D17	Fail
h2 National Security Re…	1.09:1	3.0:1	#000000	#0C0D17	Fail
h2 Manhattan Project Na…	1.09:1	3.0:1	#000000	#0C0D17	Fail
h2 Follow us	1.09:1	3.0:1	#000000	#0C0D17	Fail
h3 Dynamic imaging at L…	1.09:1	3.0:1	#000000	#0C0D17	Fail
h3 $2.7 million	1.09:1	3.0:1	#000000	#0C0D17	Fail
h3 LANL experts receive…	1.09:1	3.0:1	#000000	#0C0D17	Fail
h3 Boston Marathon runn…	1.09:1	3.0:1	#000000	#0C0D17	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.

A+

Heading Hierarchy

36 headings

PASS

36 headings

Single H1 present

H1 The Lab is prepared for wildfire season
H2 Our mission
H2 Explore our science in action
H3 Dynamic imaging at Los Alamos: Look inside extreme physics
H4 NASA's Curiosity rover finds more evidence of ancient lakes on Mars
H4 AI model successfully trained in electroplating
H4 Lab launches frontier AI models on Venado supercomputer
H4 URSA is AI agent transforming how science gets done
H2 Los Alamos National Lab at a glance
H3 10
H3 $2.7 million
H3 65
H3 27
H2 From the top of the mesa
H2 Community
H2 Safety
H2 Collaborate
H2 Featured news
H3 LANL experts receive awards from Federal Laboratory Consortium for Technology Transfer
H4 6 ways New Mexico colleges connect you with Lab careers
H4 LANL Foundation awards over $100,000 in grants to support STEAM education
H4 Los Alamos’ environmental impact: New report
H4 The Lab mitigates wildfire year-round
H2 Voices of the Lab
H3 Boston Marathon runners
H3 Ed Anderson
H3 Hermelinda Coronado
H3 Fatima Woody
H3 Vernon Vigil
H3 Aaron Couture
H2 Start your career with us
H2 Explore our history
H2 Bradbury Science Museum
H2 National Security Research Center
H2 Manhattan Project National Historic Park
H2 Follow us

A+

Alt Text Quality

All 28 images OK

PASS

All 28 images OK

28 image(s) with good alt text

28 images 28 good alt text

All images have appropriate alt text.

A+

Form Accessibility

No form controls

PASS

No form controls

No form controls on this page

No form controls found.

A+

Link & Button Quality

45 links, 5 buttons — all OK

PASS

45 links, 5 buttons — all OK

45 link(s) with descriptive text

45 links

0 empty

0 generic text

0 new tab

0 empty buttons

All links and buttons have descriptive accessible text.

50 links and buttons have descriptive text

A+

Lighthouse Accessibility Audits

Score 95/100 — 1 failing, 25 passed

PASS

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

ARIA

Each ARIA `role` supports a specific subset of `aria-*` attributes. Mismatching these invalidates the `aria-*` attributes. Learn how to match ARIA attributes to their roles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
DOE/LANL Jurisdiction Fire Danger Rating: High `body > section.Container-module_grid__f2mWn > div.RatingsBar-module-scss-module__v-_29W__ratings-bar-items`

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.

○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-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.

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

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

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links are distinguishable without relying on color.

●Links have a discernible name

●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

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

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

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

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

○`[role]`s are contained by their required parent element

○Elements with the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○ARIA IDs are unique

○No form fields have multiple labels

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

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○Input buttons have discernible text.

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

○Form elements have associated labels

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

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`[lang]` attributes have a valid value

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

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Uses ARIA roles only on compatible elements

○Image elements do not have `[alt]` attributes that are redundant text.

○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.