Accessibility

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Checks

4 PASS 3 REVIEW 6 FIX

Link & Button Quality

Action

40 issue(s) across 208 links and 37 buttons

FIX

40 issue(s) across 208 links and 37 buttons

6 link(s) with no accessible text

Links without text are announced as raw URLs by screen readers.

Got: https://www.uni-ulm.de/universitaet/hochschulkommunikation/presse-und-oeffent…; a.lb-prev (#1030 on page); a.lb-next (#1031 on page); a.lb-cancel (#1033 on page); a.lb-close (#1040 on page); a.lb-download (#1041 on page)

5 image-only link(s) without alt text

Image-only links need alt text on the image (or aria-label on the link) so screen readers can announce them.

Got: a[href="https://www.uni-ulm.de/studium/semestereroeffnung-sose-2026/"]; a[href="https://www.uni-ulm.de/in/fakultaet/in-detailseiten/news-detail/article/volks…"]; a[href="https://www.uni-ulm.de/studium/bewerbung-und-immatrikulation/"]; a[href="https://www.uni-ulm.de/nawi/naturwissenschaften/nawi-detailseiten/news-detail…"]; a[href="https://www.uni-ulm.de/med/fakultaet/med-detailseiten/news-detail/article/neu…"]

15 link(s) open in new tab without warning

Add '(opens in new tab)' to link text or aria-label.

Got: https://www.facebook.com/sharer/sharer.php?u=https://www.uni-ulm.de/; mailto:?&subject=Universität Ulm&body=https://www.uni-ulm.de/; /forschung/; /studium/studieren-an-der-uni-ulm/; /transfer/; /universitaet/hochschulkommunikation/presse-und-oeffentlichkeitsarbeit/unimag…; https://www.uni-ulm.de/studium/studieren-an-der-uni-ulm/studiengaenge/; https://www.uni-ulm.de/klimaschutz-und-nachhaltigkeit/; https://www.uni-ulm.de/universitaet/hochschulkommunikation/presse-und-oeffent…; https://www.instagram.com/universitaetulm/ (+5 more)

34 button(s) with no accessible text

Icon-only buttons need an aria-label so screen readers can announce them.

Got: button.js-main-navigation-back (#84 on page); button.js-main-navigation-back (#91 on page); button.js-main-navigation-back (#114 on page); button.js-main-navigation-back (#121 on page); button.js-main-navigation-back (#136 on page); button.js-main-navigation-back (#165 on page); button.js-main-navigation-back (#172 on page); button.js-main-navigation-back (#191 on page); button.js-main-navigation-back (#200 on page); button.js-main-navigation-back (#207 on page) (+24 more)

182 link(s) with descriptive text

208 links

6 empty

0 generic text

15 new tab

34 empty buttons

Element	Text	Issue	Suggested Fix
https://www.facebook.com/sharer/sharer.p…	FB	new tab	Add '(opens in new tab)' to text
mailto:?&subject=Universität Ulm&body=…	@	new tab	Add '(opens in new tab)' to text
https://www.uni-ulm.de/studium/semestere…	Willkommen im Sommersemester …	img no alt	Add alt attribute to the image
https://www.uni-ulm.de/in/fakultaet/in-d…	Medizinische Wearables smarter…	img no alt	Add alt attribute to the image
https://www.uni-ulm.de/studium/bewerbung…	Zulassungsbeschränkte Studien…	img no alt	Add alt attribute to the image
https://www.uni-ulm.de/nawi/naturwissens…	Wie sich organische Düngung a…	img no alt	Add alt attribute to the image
https://www.uni-ulm.de/med/fakultaet/med…	Neue Skills Labs der Zahnmediz…	img no alt	Add alt attribute to the image
/forschung/	Mehr zur Forschung	new tab	Add '(opens in new tab)' to text
/studium/studieren-an-der-uni-ulm/	Mehr zum Studium	new tab	Add '(opens in new tab)' to text
/transfer/	Mehr zum Transfer	new tab	Add '(opens in new tab)' to text
/universitaet/hochschulkommunikation/pre…	Zur Online-Ausgabe des Uni-Mag…	new tab	Add '(opens in new tab)' to text
https://www.uni-ulm.de/studium/studieren…	Zur Übersicht der Studiengän…	new tab	Add '(opens in new tab)' to text
https://www.uni-ulm.de/klimaschutz-und-n…	Mehr zu Klimaschutz und Nachha…	new tab	Add '(opens in new tab)' to text
https://www.uni-ulm.de/universitaet/hoch…	(empty)	empty	Add link text or aria-label
https://www.uni-ulm.de/universitaet/hoch…	Zur Online-Ausgabe	new tab	Add '(opens in new tab)' to text
https://www.instagram.com/universitaetul…	instagram	new tab	Add '(opens in new tab)' to text
https://www.linkedin.com/school/ulm-univ…	linkedin	new tab	Add '(opens in new tab)' to text
https://mastodon.social/@UniUlm	mastodon	new tab	Add '(opens in new tab)' to text
https://bsky.app/profile/uniulm.bsky.soc…	bluesky	new tab	Add '(opens in new tab)' to text
https://www.facebook.com/UniUlm	facebook	new tab	Add '(opens in new tab)' to text
https://www.youtube.com/user/uulm	youtube	new tab	Add '(opens in new tab)' to text
	(empty)	empty	Add link text or aria-label
	(empty)	empty	Add link text or aria-label
	(empty)	empty	Add link text or aria-label
	(empty)	empty	Add link text or aria-label
	(empty)	empty	Add link text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label
<button>	(empty)	empty	Add button text or aria-label

185 links and buttons have descriptive text

Links without text are announced as raw URLs by screen readers.

https://www.uni-ulm.de/universitaet/hochschulkommunikation/presse-und-oeffent…; a.lb-prev (#1030 on page); a.lb-next (#1031 on page); a.lb-cancel (#1033 on page); a.lb-close (#1040 on page); a.lb-download (#1041 on page)

Why this matters

Links with no accessible text (empty <a></a>, image-only no alt, icon-only no aria-label) are unidentifiable to screen readers.

Source: WCAG 2.1 SC 2.4.4

Image-only links need alt text on the image (or aria-label on the link) so screen readers can announce them.

a[href="https://www.uni-ulm.de/studium/semestereroeffnung-sose-2026/"]; a[href="https://www.uni-ulm.de/in/fakultaet/in-detailseiten/news-detail/article/volks…"]; a[href="https://www.uni-ulm.de/studium/bewerbung-und-immatrikulation/"]; a[href="https://www.uni-ulm.de/nawi/naturwissenschaften/nawi-detailseiten/news-detail…"]; a[href="https://www.uni-ulm.de/med/fakultaet/med-detailseiten/news-detail/article/neu…"]

Why this matters

Image-only links with no alt are unidentifiable to screen-reader users — link's destination is invisible.

Source: WCAG 2.1 SC 2.4.4

Add '(opens in new tab)' to link text or aria-label.

https://www.facebook.com/sharer/sharer.php?u=https://www.uni-ulm.de/; mailto:?&subject=Universität Ulm&body=https://www.uni-ulm.de/; /forschung/; /studium/studieren-an-der-uni-ulm/; /transfer/; /universitaet/hochschulkommunikation/presse-und-oeffentlichkeitsarbeit/unimag…; https://www.uni-ulm.de/studium/studieren-an-der-uni-ulm/studiengaenge/; https://www.uni-ulm.de/klimaschutz-und-nachhaltigkeit/; https://www.uni-ulm.de/universitaet/hochschulkommunikation/presse-und-oeffent…; https://www.instagram.com/universitaetulm/ (+5 more)

Why this matters

Links with target="_blank" without rel="noopener" leak the originating page's window context — security and UX issue.

Learn more ▾

Without rel="noopener", the new tab can navigate the original tab via window.opener (tab-nabbing attack). Modern browsers default to noopener for target=_blank but only since recent versions. Always set rel="noopener noreferrer" explicitly.

Source: MDN target / OWASP

Icon-only buttons need an aria-label so screen readers can announce them.

button.js-main-navigation-back (#84 on page); button.js-main-navigation-back (#91 on page); button.js-main-navigation-back (#114 on page); button.js-main-navigation-back (#121 on page); button.js-main-navigation-back (#136 on page); button.js-main-navigation-back (#165 on page); button.js-main-navigation-back (#172 on page); button.js-main-navigation-back (#191 on page); button.js-main-navigation-back (#200 on page); button.js-main-navigation-back (#207 on page) (+24 more)

Why this matters

Buttons with no accessible text (icon-only, no aria-label) can't be activated by voice control or understood by screen readers.

Source: WCAG 2.1 SC 4.1.2

404 Error Page

Action

HTTP 404, bare page

FIX

HTTP 404, bare page

Correct 404 status code returned

Got: HTTP 404

Bare server default 404 page

The 404 page has no custom styling. Users hitting a broken link see a generic error with no way to navigate back. Add a custom 404 page with your site navigation and a search bar.

404 Page Quality Default 404 Page

Status Code HTTP 404 ✓Custom Styling ✗Navigation ✗Homepage Link ✗Search Form ✗

Favicon & Branding

Action

2 icon(s) detected

FIX

2 icon(s) detected

favicon.ico present at site root

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 Present

✓ 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.

Navigation UX

Action

1 navigation pattern(s)

FIX

1 navigation pattern(s)

Back-to-top link detected

3 navigation landmark(s) detected

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 3 <nav> element(s)

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.

Landmark Structure

6 landmarks

REVIEW

6 landmarks

<main> landmark present

3 <nav> landmark(s) found

2 of 3 <nav> elements are unlabeled

Multiple navigations need aria-label to distinguish them for screen readers.

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

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

Heading Hierarchy

27 headings

REVIEW

27 headings

No H1 heading found

Every page should have one H1 that describes the page content.

H3 Willkommen im Sommersemester
H3 Medizinische Wearables smarter machen
H3 Zulassungsbeschränkte Studiengänge
H3 Wie sich organische Düngung auf Antibiotika-resistente Erreger auswirkt
H3 Neue Skills Labs der Zahnmedizin feierlich eingeweiht
H2 Studium & Forschung auf höchstem Niveau
H3 Forschung
H3 Studium
H3 Transfer
H2 An der Uni Ulm gestalten wir gemeinsam die Zukunft - mit einem klaren Fokus und auf höchstem Niveau.
H3 Exzellent in der Batterieforschung
H3 Pioniere der Quantenforschung
H2 Aktuelles
H3 Gauß-Vorlesung im Stadthaus UlmProfessorin Karen Willcox spricht über Digitale Zwillinge
H3 Quantenforschung stärken, Talente fördern:Weitere 4,5 Millionen Euro für Graduiertenschule
H3 Biomedizintechnik im Taschenformat soll smarter werdenVolkswagenStiftung unterstützt Mobile-Health-Experte Professor Walter Karlen
H3 Von Buddhas, Batterien und Blutkrebs Kostenlose Vortragsreihe in der Ulmer Stadtmitte
H3 Uni Ulm fördert Projekte zu molekularen Quanten-Bits und digitaler Diabetesforschung Forschungsinkubatoren legen Fokus auf Ideen außerhalb des Mainstreams
H2 Veranstaltungen
H3 Bundesweite Online-Ringvorlesung "Gesundheit im Wandel"
H3 Girls‘ und Boys‘ Day
H3 Institutskolloquium PsychologieIntegrating sensory signals for effective perception and action: From childhood development to senory augmentation
H2 Studiengänge an derUniversität Ulm
H2 Klimaschutz undNachhaltigkeit
H2 Unimagazin u-topics
H2 Service
H2 Rechtliche Hinweise

Every page should have one H1 that describes the page content.

Why this matters

No H1 means screen-reader users can't identify the page's primary topic, and Google's content-extraction degrades.

Learn more ▾

The H1 is the document title for assistive tech and a strong signal to search engines about page topic. Pages without one force screen readers to fall back to the <title> attribute or page chrome. Add a single H1 that names the page's primary subject.

Source: WCAG 2.4.6 / Google Search Central

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

h2 Studium & Forschung auf höchstem Niveau

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Aktuelles

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Veranstaltungen

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Studiengänge an der

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Universität Ulm

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Klimaschutz und

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Nachhaltigkeit

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Unimagazin u-topics

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Service

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

24px · bottom of viewport

h2 Rechtliche Hinweise

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

24px · bottom of viewport

h3 Willkommen im Sommersemester

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Medizinische Wearables smarter machen

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Zulassungsbeschränkte Studiengänge

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Wie sich organische Düngung auf Antibio…

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Neue Skills Labs der Zahnmedizin feierli…

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Exzellent in der Batterieforschung

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Pioniere der Quantenforschung

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Gauß-Vorlesung im Stadthaus Ulm

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Professorin Karen Willcox spricht über …

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

19px · bottom of viewport

h3 Quantenforschung stärken, Talente förd…

1.23:1

#000000

#1C1C1C

needs 3.0:1 (large text)

19px · bottom of viewport

Show all checked elements (20)

Element	Ratio	Required	FG	BG	Result
h2 Studium & Forschung …	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h2 Aktuelles	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h2 Veranstaltungen	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h2 Studiengänge an der	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h2 Universität Ulm	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h2 Klimaschutz und	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h2 Nachhaltigkeit	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h2 Unimagazin u-topics	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h2 Service	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h2 Rechtliche Hinweise	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h3 Willkommen im Sommer…	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h3 Medizinische Wearabl…	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h3 Zulassungsbeschränk…	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h3 Wie sich organische …	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h3 Neue Skills Labs der…	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h3 Exzellent in der Bat…	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h3 Pioniere der Quanten…	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h3 Gauß-Vorlesung im S…	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h3 Professorin Karen Wi…	1.23:1	3.0:1	#000000	#1C1C1C	Fail
h3 Quantenforschung st�…	1.23:1	3.0:1	#000000	#1C1C1C	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.

Alt Text Quality

2 of 32 images have issues

PASS

2 of 32 images have issues

1 image(s) missing alt attribute

Images without alt text are invisible to screen readers.

1 image(s) with generic alt text

6 decorative image(s) correctly marked

24 image(s) with good alt text

32 images 24 good alt text 6 decorative 1 generic 1 missing

Issue	Count
missing	1 image(s)
generic	1 image(s)

Images without alt text are invisible to screen readers.

Why this matters

Each image without alt text is a WCAG 1.1.1 failure — invisible to screen-reader users, lost from Google Image Search.

Learn more ▾

WCAG 2.1 Level A requires text alternatives for non-decorative images. Empty alt='' is fine for decorative; meaningful images need descriptive text. Common fixes: CMS audit + bulk add, build-time linter (alt-text-required ESLint rule), CI gate on Lighthouse a11y score.

Source: WCAG 2.1 SC 1.1.1 / WebAIM Million Report

A+

Form Accessibility

All 1 controls labeled

PASS

All 1 controls labeled

1 control(s) properly labeled

1 controls

1 labeled

0 placeholder only

0 unlabeled

Control	Type	Label	Method
#q	search	Suche	aria-label

A+

Print Stylesheet

Print styles detected

PASS

Print styles detected

External print stylesheet detected

Got: /typo3temp/assets/compressed/print-729ce677e4856c71b6ced60163b2b1d1.css.gz?1775726340

Print Stylesheet ✓ Print Optimized

Print stylesheet /typo3temp/assets/compressed/print-729ce677e4856c71b6ced60163b2b1d1.css.gz?1775726340 ✓Inline @media print Not detected ✗

Lighthouse Accessibility Audits

Score 90/100 — 3 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.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Alle Cookies akzeptieren `div.in2-modal__blackbox > div.in2-modal > div.in2-modal-spacing > button.in2-modal-reset`
oder `div.in2-modal__blackbox > div.in2-modal > div.in2-modal-spacing > p.in2-modal-divider`
Auswahl speichern & schließen `div.in2-modal__blackbox > div.in2-modal > div.in2-modal-spacing > button.in2-modal-reset`
oder `div.in2-modal__blackbox > div.in2-modal > div.in2-modal-spacing > p.in2-modal-divider`
Nur notwendige Cookies `div.in2-modal__blackbox > div.in2-modal > div.in2-modal-spacing > button.in2-modal-reset`

These are opportunities to improve the legibility of your content.

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.row > div#collapse1043053 > figure.figure-with-spacing > a `div.row > div#collapse1043053 > figure.figure-with-spacing > a`

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.

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
div.in2-modal > div.in2-modal-flexline > div.in2-modal-reset > input#in2-modal-checkbox-essential `div.in2-modal > div.in2-modal-flexline > div.in2-modal-reset > input#in2-modal-checkbox-essential`
div.in2-modal > div.in2-modal-flexline > div.in2-modal-reset > input#in2-modal-checkbox-external `div.in2-modal > div.in2-modal-flexline > div.in2-modal-reset > input#in2-modal-checkbox-external`
div.in2-modal > div.in2-modal-flexline > div.in2-modal-reset > input#in2-modal-checkbox-chatbot `div.in2-modal > div.in2-modal-flexline > div.in2-modal-reset > input#in2-modal-checkbox-chatbot`
Alle Cookies akzeptieren `div.in2-modal__blackbox > div.in2-modal > div.in2-modal-spacing > button.in2-modal-reset`
Auswahl speichern & schließen `div.in2-modal__blackbox > div.in2-modal > div.in2-modal-spacing > button.in2-modal-reset`
Nur notwendige Cookies `div.in2-modal__blackbox > div.in2-modal > div.in2-modal-spacing > button.in2-modal-reset`
Notwendige Cookies `div.in2-modal__blackbox > div.in2-modal > dl.in2-modal-accordion > dt.in2-modal-accordion__title`
Externe Video Inhalte `div.in2-modal__blackbox > div.in2-modal > dl.in2-modal-accordion > dt.in2-modal-accordion__title`
Chatbot Assistent `div.in2-modal__blackbox > div.in2-modal > dl.in2-modal-accordion > dt.in2-modal-accordion__title`

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

●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.

●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

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

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

●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>`).

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

●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

●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 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

○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

○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>`.

○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.