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Accessibility

· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.
SCORE
73
GRADE
C
FIX
3
REVIEW
6
PASS
4
INFO
0
Checks
13
4 PASS 6 REVIEW 3 FIX
D
Dark Mode Support
Action
Theme color only
FIX
Theme color 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.
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 ModePartial Dark Mode
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::
Skip navigation link detected
Info::
Back-to-top link detected
Info::
5 navigation landmark(s) detected
Breadcrumbs
Search
Skip Link Skip link detected
Labeled Navigation 5 <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.
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
Info::
Homepage link present on 404 page
404 Page Quality ✓ Custom 404 Page
Status Code HTTP 404 ✓Page Title Universität Bielefeld ✓Custom Styling ✓Navigation ✓Homepage Link ✓Search Form ✗
B
Favicon & Branding
7 icon(s) detected
REVIEW
7 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
Web Manifest
Valid manifest
REVIEW
Valid manifest
Info::
Name present: Bielefeld University
Info::
192x192 icon present
Info::
512x512 icon present
Info::
Display mode: standalone
PWA Install Criteria Not Installable
Name Bielefeld University ✓192×192 icon ✓512×512 icon ✓Start URL ✗Display Mode standalone ✓
Name Bielefeld University Display Mode standalone Theme Color #ffffff Background Color #ffffff Icons 2 icon(s)
C
Color Contrast (Screenshot)
Action
20 text elements analyzed, 12 fail WCAG AA
REVIEW

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

8 pass 12 fail WCAG AA 8 pass AA only
title Bielefeld University
3.37:1
#000000
on
#63605E
needs 4.5:1 (normal text)
16px · top of page (header area)
button avoid automatic content change
2.58:1
#000000
on
#594D49
needs 4.5:1 (normal text)
16px · top of page (header area)
span skip to main content
2.51:1
#000000
on
#584B46
needs 4.5:1 (normal text)
16px · top of page (header area)
span skip to main menu
2.19:1
#000000
on
#54413A
needs 4.5:1 (normal text)
16px · top of page (header area)
span skip to footer
1.55:1
#000000
on
#3B2A26
needs 4.5:1 (normal text)
16px · above the fold
span Toggle Menu
1.32:1
#000000
on
#27211F
needs 4.5:1 (normal text)
16px · above the fold · over background image/gradient
span Uni­ver­sity
1.96:1
#000000
on
#50392D
needs 4.5:1 (normal text)
16px · above the fold
a Pro­file
1.76:1
#000000
on
#44332C
needs 4.5:1 (normal text)
16px · above the fold · over background image/gradient
a Fac­ul­ties
1.50:1
#000000
on
#39281F
needs 4.5:1 (normal text)
16px · above the fold
a Or­ga­ni­za­tion
1.38:1
#000000
on
#35211B
needs 4.5:1 (normal text)
16px · above the fold · over background image/gradient
a Ca­reer
1.16:1
#000000
on
#1F130B
needs 4.5:1 (normal text)
16px · above the fold
a Uni­ver­sity Li­brary
1.11:1
#000000
on
#16100C
needs 4.5:1 (normal text)
16px · above the fold · over background image/gradient

4 contrast failures on background images/gradients

These failures are invisible to CSS-based accessibility tools like Lighthouse. The text may be fine on a solid background, but fails when rendered over an image or gradient.

Show all checked elements (20)
ElementRatioRequiredFGBGResult
h2 News3.66:13.0:1
#000000
#666666
Pass
h2 Study­ing at Biele…3.66:13.0:1
#000000
#666666
Pass
h2 Re­search at Biele…3.66:13.0:1
#000000
#666666
Pass
h2 Get to know Biele­f…3.66:13.0:1
#000000
#666666
Pass
h2 Events3.66:13.0:1
#000000
#666666
Pass
h2 Datenschutzeinstellu…3.66:13.0:1
#000000
#666666
Pass
h3 Study­ing in Bielef…3.66:13.0:1
#000000
#666666
Pass
h3 Biele­feld Uni­ver…3.66:13.0:1
#000000
#666666
Pass
title Bielefeld University3.37:14.5:1
#000000
#63605E
Fail
button avoid automatic cont…2.58:14.5:1
#000000
#594D49
Fail
span skip to main content2.51:14.5:1
#000000
#584B46
Fail
span skip to main menu2.19:14.5:1
#000000
#54413A
Fail
span skip to footer1.55:14.5:1
#000000
#3B2A26
Fail
span Toggle Menu1.32:14.5:1
#000000
#27211F
Fail
span Uni­ver­sity1.96:14.5:1
#000000
#50392D
Fail
a Pro­file1.76:14.5:1
#000000
#44332C
Fail
a Fac­ul­ties1.50:14.5:1
#000000
#39281F
Fail
a Or­ga­ni­za­tion1.38:14.5:1
#000000
#35211B
Fail
a Ca­reer1.16:14.5:1
#000000
#1F130B
Fail
a Uni­ver­sity Li­b…1.11:14.5:1
#000000
#16100C
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 70/100 — 9 failing, 22 passed
REVIEW
70

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
In times of crisis, we need spaces for creativity div.ubf-slideshow__navigation > ul.ubf-slideshowNavigation__items > li.ubf-slideshowNavigation__item > a#label_slideshow-comp_000062cf78a8_00000029cf_36ca-0

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
go to previous content div.ubf-contentBlock > div.ubf-contentBlock__slideshow > div.ubf-slideshow__navigation > ul.ubf-slideshowNavigation__items
See next content div.ubf-section__content > div.ubf-contentBlock > div.ubf-previewsSliderNavigation > ul.ubf-previewsSliderNavigation__items
See next content div.ubf-section__content > div.ubf-contentBlock > div.ubf-previewsSliderNavigation > ul.ubf-previewsSliderNavigation__items
See next content div.ubf-section__content > div.ubf-contentBlock > div.ubf-previewsSliderNavigation > ul.ubf-previewsSliderNavigation__items

Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. Learn more about valid values for ARIA attributes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Tab 1 div.ubf-previewsSliderPaging > ul.ubf-previewsSliderPaging__items > li.ubf-previewsSliderPaging__item > button#comp_00006840fa2f_000000459b_7f5a-0
Tab 1 div.ubf-previewsSliderPaging > ul.ubf-previewsSliderPaging__items > li.ubf-previewsSliderPaging__item > button#comp_0000660cb82b_00000043a8_0dff-0
Tab 1 div.ubf-previewsSliderPaging > ul.ubf-previewsSliderPaging__items > li.ubf-previewsSliderPaging__item > button#comp_0000660cb82b_0000004511_0dff-0

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.

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
The Power of the Individual – Talks Now Online - Universität Bielefeld ul.ubf-contentBlock__mainnews > li.ubf-mainnews__mainnews-item > div.ubf-mainnews-item__visual > a.ubf-mainnews-item__thumbLink

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 have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
In times of cri­sis, we need spaces for cre­ativ­ity How do good ideas emerge—… section.ubf-page__section > div.ubf-contentBlock > div.ubf-contentBlock__slideshow > ul.ubf-slideshow__slides
Service Faculties Information for … Further information footer#footer > div.ubf-footer__content > nav.ubf-footer__menu > ul.ubf-footer__menuSections

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
go to previous content div.ubf-contentBlock__slideshow > div.ubf-slideshow__navigation > ul.ubf-slideshowNavigation__items > li.ubf-slideshowNavigation__item
go to next content div.ubf-contentBlock__slideshow > div.ubf-slideshow__navigation > ul.ubf-slideshowNavigation__items > li.ubf-slideshowNavigation__item
See next content div.ubf-contentBlock > div.ubf-previewsSliderNavigation > ul.ubf-previewsSliderNavigation__items > li.ubf-previewsSliderNavigation__item
See next content div.ubf-contentBlock > div.ubf-previewsSliderNavigation > ul.ubf-previewsSliderNavigation__items > li.ubf-previewsSliderNavigation__item
See next content div.ubf-contentBlock > div.ubf-previewsSliderNavigation > ul.ubf-previewsSliderNavigation__items > li.ubf-previewsSliderNavigation__item
See next content div.ubf-contentBlock > div.ubf-previewsSliderNavigation > ul.ubf-previewsSliderNavigation__items > li.ubf-previewsSliderNavigation__item
See next content div.ubf-contentBlock > div.ubf-previewsSliderNavigation > ul.ubf-previewsSliderNavigation__items > li.ubf-previewsSliderNavigation__item
See next content div.ubf-contentBlock > div.ubf-previewsSliderNavigation > ul.ubf-previewsSliderNavigation__items > li.ubf-previewsSliderNavigation__item

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Navigation

A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn more about the `tabindex` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
avoid automatic content change body#top > span.ubf-skip-links > button.ubf-skip-links__link

These are opportunities to improve keyboard navigation in your application.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Tab 1 div.ubf-previewsSliderPaging > ul.ubf-previewsSliderPaging__items > li.ubf-previewsSliderPaging__item > button#comp_00006840fa2f_000000459b_7f5a-0
Tab 2 div.ubf-previewsSliderPaging > ul.ubf-previewsSliderPaging__items > li.ubf-previewsSliderPaging__item > button#comp_00006840fa2f_000000459b_7f5a-1
Tab 3 div.ubf-previewsSliderPaging > ul.ubf-previewsSliderPaging__items > li.ubf-previewsSliderPaging__item > button#comp_00006840fa2f_000000459b_7f5a-2
Tab 4 div.ubf-previewsSliderPaging > ul.ubf-previewsSliderPaging__items > li.ubf-previewsSliderPaging__item > button#comp_00006840fa2f_000000459b_7f5a-3
Tab 1 div.ubf-previewsSliderPaging > ul.ubf-previewsSliderPaging__items > li.ubf-previewsSliderPaging__item > button#comp_0000660cb82b_00000043a8_0dff-0
Tab 2 div.ubf-previewsSliderPaging > ul.ubf-previewsSliderPaging__items > li.ubf-previewsSliderPaging__item > button#comp_0000660cb82b_00000043a8_0dff-1
Tab 3 div.ubf-previewsSliderPaging > ul.ubf-previewsSliderPaging__items > li.ubf-previewsSliderPaging__item > button#comp_0000660cb82b_00000043a8_0dff-2
Tab 4 div.ubf-previewsSliderPaging > ul.ubf-previewsSliderPaging__items > li.ubf-previewsSliderPaging__item > button#comp_0000660cb82b_00000043a8_0dff-3
Tab 1 div.ubf-previewsSliderPaging > ul.ubf-previewsSliderPaging__items > li.ubf-previewsSliderPaging__item > button#comp_0000660cb82b_0000004511_0dff-0
Tab 2 div.ubf-previewsSliderPaging > ul.ubf-previewsSliderPaging__items > li.ubf-previewsSliderPaging__item > button#comp_0000660cb82b_0000004511_0dff-1
Tab 3 div.ubf-previewsSliderPaging > ul.ubf-previewsSliderPaging__items > li.ubf-previewsSliderPaging__item > button#comp_0000660cb82b_0000004511_0dff-2
Tab 4 div.ubf-previewsSliderPaging > ul.ubf-previewsSliderPaging__items > li.ubf-previewsSliderPaging__item > button#comp_0000660cb82b_0000004511_0dff-3
see previous nav.ubf-footer__menu > ul.ubf-footer__sliderNavigation > li.ubf-footer__sliderNavigationItem > button.ubf-footer__sliderNavigationButton

These items highlight common accessibility best practices.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Toggle Menu body#top > header.ubf-body__header > div.ubf-header__mainMenuToggler > a.ubf-header__mainMenuTogglerLink
○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]`s are contained by their required parent element
●`[role]` values are valid
●`[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.
●`[lang]` attributes have a valid value
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Uses ARIA roles only on compatible elements
●Identical links have the same purpose.
○`[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 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.
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○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.
A
Landmark Structure
17 landmarks
PASS
17 landmarks
Info::
<main> landmark present
Info::
5 <nav> landmark(s) found
Warning::
1 of 5 <nav> elements are unlabeled
Multiple navigations need aria-label to distinguish them for screen readers.
Info::
Skip navigation link present
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

A+
Heading Hierarchy
24 headings
PASS
24 headings
Info::
Single H1 present
  • H1 Bielefeld University Bielefeld University
  • H2 News
  • H3 Three ques­tions on post-​socialism and colo­nial­ity
  • H3 Project ad­vances pro­tec­tion of At­lantic corals
  • H3 The Power of the In­di­vid­ual – Talks Now On­line
  • H2 Study­ing at Biele­feld Uni­ver­sity
  • H3 Study­ing in Bielefeld-​ Dis­cover your ad­van­tages
  • H3 Sup­port and Ori­en­ta­tion Of­fer­ings
  • H3 Ser­vice and Ad­vice
  • H3 Info newslet­ter (in Ger­man)
  • H3 My Uni App
  • H2 Re­search at Biele­feld Uni­ver­sity
  • H3 Re­search Worlds
  • H3 Re­search Projects
  • H3 Re­searchers
  • H3 GrACe - Grad­u­ate and Aca­d­e­mic ­Ca­reer De­vel­op­ment Cen­tre
  • H2 Get to know Biele­feld Uni­ver­sity
  • H3 Biele­feld Uni­ver­sity - This is us.
  • H3 Ca­reer
  • H3 Sus­tain­abil­ity
  • H3 Equal­ity and Gen­der
  • H3 Di­ver­sity
  • H2 Events
  • H2 Datenschutzeinstellung
A
Alt Text Quality
All 30 images OK
PASS
All 30 images OK
Info::
3 image(s) with alt text over 125 characters
Info::
27 image(s) with good alt text
30 images 27 good alt text
IssueCount
too long3 image(s)
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
querytextsearch text inputaria-label
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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