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Accessibility

· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.
SCORE
67
GRADE
D
FIX
3
REVIEW
5
PASS
5
INFO
0
Checks
13
5 PASS 5 REVIEW 3 FIX
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 ✗
F
Navigation UX
Action
No navigation patterns
FIX
No navigation patterns
Info::
3 navigation landmark(s) detected
Info::
Hamburger menu detected (responsive design)
Info::
No breadcrumbs, search, or skip link detected
These navigation aids help users orient themselves and find content efficiently, especially on large sites.
Breadcrumbs
Search
Skip Link
Labeled Navigation 3 <nav> element(s)
Back to Top
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.
B
Landmark Structure
9 landmarks
REVIEW
9 landmarks
Info::
<main> landmark present
Info::
3 <nav> landmark(s) found
Warning::
3 of 3 <nav> elements are unlabeled
Multiple navigations need aria-label to distinguish them for screen readers.
Warning::
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
BANNER header NAV MAIN CONTENTINFO footer

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

B
404 Error Page
HTTP 404, custom page
REVIEW
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
404 Page Quality ✓ Custom 404 Page
Status Code HTTP 404 ✓Page Title Sanofi ✓Custom Styling ✓Navigation ✓Homepage Link ✗Search Form ✗
C
Web Manifest
Action
Valid manifest
REVIEW
Valid manifest
Warning::
No name or short_name
Add a name field to identify the app.
Info::
192x192 icon present
Info::
512x512 icon present
Info::
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)
B
Color Contrast (Screenshot)
20 text elements analyzed, 0 fail WCAG AA
REVIEW

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

20 pass 2 pass AA only
Show all checked elements (20)
ElementRatioRequiredFGBGResult
h2 First quarter 20265.24:13.0:1
#000000
#7F7F7F
Pass
h2 Our Latest Articles5.24:13.0:1
#000000
#7F7F7F
Pass
h2 The Power of Chasing…5.24:13.0:1
#000000
#7F7F7F
Pass
h2 People Stories5.24:13.0:1
#000000
#7F7F7F
Pass
h2 About Us5.24:13.0:1
#000000
#7F7F7F
Pass
h2 Our Pipeline5.24:13.0:1
#000000
#7F7F7F
Pass
h2 Pursue Progress. Dis…5.24:13.0:1
#000000
#7F7F7F
Pass
h2 Our Latest Press Rel…5.24:13.0:1
#000000
#7F7F7F
Pass
h3 Shape Matters: Insid…5.24:13.0:1
#000000
#7F7F7F
Pass
h3 It’s Time to Look …5.24:13.0:1
#000000
#7F7F7F
Pass
h3 The Fast (And Intens…5.24:13.0:1
#000000
#7F7F7F
Pass
h3 Céline, living with…5.24:13.0:1
#000000
#7F7F7F
Pass
h3 Xavier, living with …5.24:13.0:1
#000000
#7F7F7F
Pass
h3 Wei, Sanofi5.24:13.0:1
#000000
#7F7F7F
Pass
h3 Who We Are5.24:13.0:1
#000000
#7F7F7F
Pass
h3 Our Science5.24:13.0:1
#000000
#7F7F7F
Pass
h3 Your Health5.24:13.0:1
#000000
#7F7F7F
Pass
h3 Sustainability5.24:13.0:1
#000000
#7F7F7F
Pass
title R&D-Driven and AI-Po…5.24:14.5:1
#000000
#7F7F7F
Pass
a Our Company5.24:14.5:1
#000000
#7F7F7F
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.

A
Heading Hierarchy
24 headings, 1 skip(s)
PASS
24 headings, 1 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.
  • H1 We chase the miracles of science so you can chase your dreams.
  • H2 First quarter 2026
  • H2 Our Latest Articles
  • H3 Shape Matters: Inside Molecular Clamp Vaccines
  • H3 It’s Time to Look Beyond the Bleed
  • H3 The Fast (And Intense) Lane: How Expedited Approvals Are Going Further and Faster for Patients
  • H2 The Power of Chasing A Dream
  • H2 People Stories
  • H4 We’re proud to spotlight those who inspire us to keep going further in the work we do. skipped
  • H3 Céline, living with secondary progressive multiple sclerosis
  • H3 Xavier, living with autoimmune type 1 diabetes
  • H3 Wei, Sanofi
  • H2 We are an R&D driven, AI-powered biopharmaceutical company committed to improving people’s lives and delivering compelling growth.
  • H2 About Us
  • H3 Who We Are
  • H3 Our Science
  • H3 Your Health
  • H3 Sustainability
  • H2 Our Pipeline
  • H3 5
  • H3 80
  • H3 28
  • H2 Pursue Progress. Discover Extraordinary.
  • H2 Our Latest Press Releases

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

A
Alt Text Quality
All 13 images OK
PASS
All 13 images OK
Info::
5 image(s) with alt text over 125 characters
Info::
4 decorative image(s) correctly marked
Info::
4 image(s) with good alt text
13 images 4 good alt text 4 decorative
IssueCount
too long5 image(s)
A+
Form Accessibility
No form controls
PASS
No form controls
Info::
No form controls on this page
No form controls found.
A
Favicon & Branding
6 icon(s) detected
PASS
6 icon(s) detected
Info::
favicon.ico present at site root
Info::
HTML icon links detected
Info::
Apple touch icon present
Info::
SVG favicon detected — scales perfectly to any size
Info::
Multiple icon sizes detected
✓ favicon.ico Present
✓ PNG Icons Present
✓ Apple Touch Present
✓ SVG Favicon Present
✓ Manifest Icons Present
✓ Multiple Sizes Present
A+
Lighthouse Accessibility Audits
Score 98/100 — 1 failing, 27 passed
PASS
98

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.

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
We’re proud to spotlight those who inspire us to keep going further in the work… div#b901fa86-2a41-448a-9246-49bd2a8d10e3 > div.MuiGrid2-root > div > h4.MuiTypography-root

These are opportunities to improve keyboard navigation in your application.

○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.
●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
●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.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●`<video>` elements contain a `<track>` element with `[kind="captions"]`
●Identical links have the same purpose.
●Elements with visible text labels have matching accessible names.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements 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
○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
○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.
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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