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https://rwth-aachen.de

Accessibility

· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.
SCORE
79
GRADE
C
FIX
2
REVIEW
5
PASS
6
INFO
0
Checks
13
6 PASS 5 REVIEW 2 FIX
D
Web Manifest
Action
Valid manifest
FIX
Valid manifest
Warning::
No name or short_name
Add a name field to identify the app.
Info::
192x192 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 #00529f Icons 6 icon(s)
F
Navigation UX
Action
1 navigation pattern(s)
FIX
1 navigation pattern(s)
Info::
Skip navigation link detected
Info::
1 navigation landmark(s) detected
Breadcrumbs
Search
Skip Link Skip link detected
Labeled Navigation 1 <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
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 Fehlerseite - RWTH AACHEN UNIVERSITY ✓Custom Styling ✓Navigation ✓Homepage Link ✗Search Form ✗
B
Favicon & Branding
23 icon(s) detected
REVIEW
23 icon(s) detected
Info::
favicon.ico present at site root
Info::
HTML icon links detected
Info::
Apple touch icon present
Info::
Multiple icon sizes detected
✓ favicon.ico Present
✓ PNG Icons Present
✓ Apple Touch Present
✗ SVG Favicon Missing
✓ Manifest Icons Present
✓ Multiple Sizes Present
B
Dark Mode Support
Dark mode detected
REVIEW
Dark mode detected
Info::
color-scheme meta tag present
The site declares support for light and dark color schemes via <meta name='color-scheme'>.
Got: light only
Info::
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: #00529f
Info::
Detection limited to meta tags and inline styles
External CSS files may contain prefers-color-scheme rules not visible to this scan.
Dark Mode✓ Dark Mode Supported
color-scheme meta light only ✓Dark theme-color Not set ✗CSS indicators Not detected ✗

Detection limited to meta tags and inline styles.

C
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
h1 Studying at RWTH
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
32px · bottom of viewport
h1 Research at RWTH
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
32px · bottom of viewport
h1 Technology Transfer
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
32px · bottom of viewport
h1 Who We Are
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
32px · bottom of viewport
h2 Using your mobile phone for measurements
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Next-Generation University: RWTH Retains…
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
24px · bottom of viewport
h2 RWTH Tech Impact Festival
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
24px · bottom of viewport
h2 New Staff Development Strategy for RWTH
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Teaser
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Recent Highlights
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Research with Purpose. Answers with Impa…
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Excellence
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Sustainability
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Diversity
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Internationalization
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Upcoming Events
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Working at RWTH
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Footer
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
24px · bottom of viewport
h3 How Students Become AI Power Users
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
19px · bottom of viewport
h3 RWTH Study on Fuel Rebates
2.03:1
#000000
on
#404042
needs 3.0:1 (large text)
19px · bottom of viewport
Show all checked elements (20)
ElementRatioRequiredFGBGResult
h1 Studying at RWTH2.03:13.0:1
#000000
#404042
Fail
h1 Research at RWTH2.03:13.0:1
#000000
#404042
Fail
h1 Technology Transfer2.03:13.0:1
#000000
#404042
Fail
h1 Who We Are2.03:13.0:1
#000000
#404042
Fail
h2 Using your mobile ph…2.03:13.0:1
#000000
#404042
Fail
h2 Next-Generation Univ…2.03:13.0:1
#000000
#404042
Fail
h2 RWTH Tech Impact Fes…2.03:13.0:1
#000000
#404042
Fail
h2 New Staff Developmen…2.03:13.0:1
#000000
#404042
Fail
h2 Teaser2.03:13.0:1
#000000
#404042
Fail
h2 Recent Highlights2.03:13.0:1
#000000
#404042
Fail
h2 Research with Purpos…2.03:13.0:1
#000000
#404042
Fail
h2 Excellence2.03:13.0:1
#000000
#404042
Fail
h2 Sustainability2.03:13.0:1
#000000
#404042
Fail
h2 Diversity2.03:13.0:1
#000000
#404042
Fail
h2 Internationalization2.03:13.0:1
#000000
#404042
Fail
h2 Upcoming Events2.03:13.0:1
#000000
#404042
Fail
h2 Working at RWTH2.03:13.0:1
#000000
#404042
Fail
h2 Footer2.03:13.0:1
#000000
#404042
Fail
h3 How Students Become …2.03:13.0:1
#000000
#404042
Fail
h3 RWTH Study on Fuel R…2.03:13.0:1
#000000
#404042
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+
Landmark Structure
8 landmarks
PASS
8 landmarks
Info::
<main> landmark present
Info::
1 <nav> landmark(s) found
Info::
Skip navigation link present
Page Structure — as a screen reader sees it
BANNER header NAV "Skip Navigation" MAIN CONTENTINFO footer
A
Heading Hierarchy
37 headings
PASS
37 headings
Warning::
Multiple H1 headings (4 found)
A page should have only one H1. Multiple H1s dilute the document outline.
  • H5 Tools
  • H5 Services
  • H5 Institutions
  • H5 Start page RWTH
  • H5 Tools
  • H5 Services
  • H5 Institutions
  • H1 Studying at RWTH
  • H2 Using your mobile phone for measurements
  • H1 Research at RWTH duplicate H1
  • H2 Next-Generation University: RWTH Retains Excellence Status
  • H1 Technology Transfer duplicate H1
  • H2 RWTH Tech Impact Festival
  • H1 Who We Are duplicate H1
  • H2 New Staff Development Strategy for RWTH
  • H2 Teaser
  • H3 How Students Become AI Power Users
  • H3 RWTH Study on Fuel Rebates
  • H2 Recent Highlights
  • H3 Scientists from Aachen Set Standards for Microbiome Analysis by Metagenomics
  • H3 How Students Become AI Power Users
  • H3 Dissertation Award for Research on Citizen Participation
  • H2 Research with Purpose. Answers with Impact.
  • H2 Excellence
  • H2 Sustainability
  • H2 Diversity
  • H2 Internationalization
  • H2 Upcoming Events
  • H3 Musical Instruments: The Physics of Sound
  • H3 AI in Engineering: Building Learning Machines with Machine Learning
  • H3 Should I Think for Myself or Let AI do it for Me?—Benefits and Drawbacks of AI in Education and Society
  • H2 Working at RWTH
  • H2 Footer
  • H3 Services
  • H3 Other Portals
  • H3 Further Institutions
  • H3 Social Media

A page should have only one H1. Multiple H1s dilute the document outline.

Why this matters

Multiple H1s blur the page's primary topic — screen-reader users and Google both prefer one H1.

Learn more ▾

HTML5's outline algorithm technically allows multiple H1s within sectioning content, but no browser implements it. In practice: one H1 per page. Use H2-H6 for subsections.

Source: WCAG 2.4.6 / Google Search Central

A+
Alt Text Quality
All 12 images OK
PASS
All 12 images OK
Info::
1 decorative image(s) correctly marked
Info::
11 image(s) with good alt text
12 images 11 good alt text 1 decorative
All images have appropriate alt text.
A+
Form Accessibility
All 1 controls labeled
PASS
All 1 controls labeled
Info::
1 control(s) properly labeled
1 controls
1 labeled
0 placeholder only
0 unlabeled
ControlTypeLabelMethod
#searchbartextSearch forfor/id
A+
Print Stylesheet
Print styles detected
PASS
Print styles detected
Info::
External print stylesheet detected
Got: /custom/rwth/resources/css/print.css
Print Stylesheet ✓ Print Optimized
Print stylesheet /custom/rwth/resources/css/print.css ✓Inline @media print Not detected ✗
A+
Lighthouse Accessibility Audits
Score 97/100 — 1 failing, 29 passed
PASS
97

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

Focusable descendents within an `[aria-hidden="true"]` element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn how `aria-hidden` affects focusable elements.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
  Copyright: © div#site-wrapper > main#main > div#aaaaaaaaabmzlvr > div#background-aaaaaaaaabmzlyf
  Copyright: © div#site-wrapper > main#main > div#aaaaaaaaabmzlvr > div#background-aaaaaaaaabnacti
  Copyright: © div#site-wrapper > main#main > div#aaaaaaaaabmzlvr > div#background-aaaaaaaaabnacua
  Copyright: © div#site-wrapper > main#main > div#aaaaaaaaabmzlvr > div#background-aaaaaaaaabnacuc
Studying at RWTH Welcome to Aachen, Welcome to RWTH Explore Academics Im Modul … div#site-wrapper > main#main > div#aaaaaaaaabmzlvr > div#container-aaaaaaaaabmzlyf
Technology Transfer From Research to Real-World Solutions Explore Technology Tr… div#site-wrapper > main#main > div#aaaaaaaaabmzlvr > div#container-aaaaaaaaabnacua
Who We Are International and Interdisciplinary by Design Explore RWTH Im Modul … div#site-wrapper > main#main > div#aaaaaaaaabmzlvr > div#container-aaaaaaaaabnacuc

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-*]` 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
●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 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
●`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
●Skip links are focusable.
●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 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
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○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.
○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.
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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