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https://Diehl.com

Accessibility

· 24 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.
SCORE
79
GRADE
C
FIX
5
REVIEW
4
PASS
15
INFO
0
Checks
24
15 PASS 4 REVIEW 5 FIX
F
404 Error Page
Action
HTTP 401, bare page
FIX
HTTP 401, bare page
Warning::
Unexpected status code: HTTP 401
Expected HTTP 404 but received 401. This may confuse search engine crawlers.
Got: HTTP 401
Warning::
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 401 Custom Styling Navigation Homepage Link Search Form
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::
4 navigation landmark(s) detected
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 4 <nav> element(s)
Back to Top
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.
B
Landmark Structure
7 landmarks
REVIEW
7 landmarks
Info::
<main> landmark present
Info::
4 <nav> landmark(s) found
Warning::
3 of 4 <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" 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
Tabindex Anti-Patterns
0 positive, 4 -1-on-focusable
REVIEW
0 positive, 4 -1-on-focusable
Info::
tabindex="-1" on naturally-focusable <a>
tabindex="-1" removes an element from the keyboard tab order. Naturally-focusable elements (links, buttons, form controls) become unreachable for keyboard users. (Common false-positive: hidden honeypot fields. Verify the element is genuinely interactive before removing the tabindex.)
Info::
tabindex="-1" on naturally-focusable <a>
tabindex="-1" removes an element from the keyboard tab order. Naturally-focusable elements (links, buttons, form controls) become unreachable for keyboard users. (Common false-positive: hidden honeypot fields. Verify the element is genuinely interactive before removing the tabindex.)
Info::
tabindex="-1" on naturally-focusable <a>
tabindex="-1" removes an element from the keyboard tab order. Naturally-focusable elements (links, buttons, form controls) become unreachable for keyboard users. (Common false-positive: hidden honeypot fields. Verify the element is genuinely interactive before removing the tabindex.)
Info::
tabindex="-1" on naturally-focusable <a>
tabindex="-1" removes an element from the keyboard tab order. Naturally-focusable elements (links, buttons, form controls) become unreachable for keyboard users. (Common false-positive: hidden honeypot fields. Verify the element is genuinely interactive before removing the tabindex.)
B
Favicon & Branding
6 icon(s) detected
REVIEW
6 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: Diehl
Info::
192x192 icon present
Info::
512x512 icon present
Info::
Display mode: standalone
PWA Install Criteria Not Installable
Name Diehl 192×192 icon 512×512 icon Start URL Display Mode standalone
Name Diehl Display Mode standalone Theme Color #ffffff Background Color #ffffff Icons 2 icon(s)
A+
Heading Hierarchy
19 headings
PASS
19 headings
Info::
Single H1 present
  • H1 Many solutions - one group.
  • H2 Diehl Group
  • H3 Tradition goes Future!
  • H2 Energy Transition thanks to Advanced Technologies
  • H2 Worldwide networked
  • H3 With around 100 locations
  • H2 News
  • H3 Successful SPIKE LR firings from Diehl Defence's UGV Ziesel
  • H3 Diehl Defence and Hellenic Defence Systems renew partnership on IRIS-T
  • H3 Reducing Water Loss: How GAIA locates leaks, remote meter reading
  • H3 Meet Diehl Metering’s smart metering experts on IFAT 2026!
  • H2 Annual Report 2024
  • H2 Spotlights
  • H3 Events of the Diehl
  • H3 Diehl Informatik
  • H3 Diehl Ventures
  • H2 One group. Five corporate divisions. Countless opportunities to make a difference worldwide.
  • H2 Not found what you’re looking for yet?
  • H2 Many solutions – one Group
A+
Heading Text Quality
All 19 heading(s) have substantive, well-formed text
PASS
All 19 heading(s) have substantive, well-formed text
Info::
Heading text quality is clean -- no placeholder, length, or styling issues
A
Alt Text Quality
3 of 13 images have issues
PASS
3 of 13 images have issues
Warning::
3 image(s) with filename as alt text
Info::
6 decorative image(s) correctly marked
Info::
4 image(s) with good alt text
13 images 4 good alt text 6 decorative 3 generic
IssueCount
filename3 image(s)
A+
Form Accessibility
All 2 controls labeled
PASS
All 2 controls labeled
Info::
2 control(s) properly labeled
2 controls
2 labeled
0 placeholder only
0 unlabeled
ControlTypeLabelMethod
#footer-searchsearchBrowse Diehlfor/id
#search-df60c37699searchBrowse Diehlfor/id
A+
Form Input Types
2 form control(s) checked, no type mismatches
PASS
2 form control(s) checked, no type mismatches
Info::
No input-type mismatches detected
A+
Form Input Quality
2 form control(s) checked, no input-semantic issues
PASS
2 form control(s) checked, no input-semantic issues
Info::
All form input semantics look correct
A+
Mobile Keyboard & Autofill
No autofill-eligible form controls
PASS
No autofill-eligible form controls
Info::
No autofill-eligible form controls (no name/email/tel/address fields)
A+
Document Language
Lang attribute set to "en-US"
PASS
Lang attribute set to "en-US"
Info::
<html lang="en-US"> is set and valid
Got: en-US
A+
Iframe Accessibility
No iframes on this page
PASS
No iframes on this page
Info::
No iframes on this page
A+
Tap Target Adequacy
All tap targets meet WCAG 2.5.5/2.5.8 sizing
PASS
All tap targets meet WCAG 2.5.5/2.5.8 sizing
Info::
All tap targets meet WCAG 2.5.5 (44x44px) sizing
A+
Mobile-Readable Font Sizes
All 150 visible text node(s) render at >= 12 CSS pixels
PASS
All 150 visible text node(s) render at >= 12 CSS pixels
Info::
All text uses legible mobile font sizes (>= 12 CSS px)
A+
PWA Depth
1 PWA signal(s) surfaced
PASS
1 PWA signal(s) surfaced
Info::
Manifest has no maskable icon
Android 12+ Adaptive Icons crop non-maskable icons to a circle or squircle -- frequently hiding important parts of the logo. Add at least one icon entry with `"purpose": "maskable"` (or `"any maskable"`) and a maskable-aware design (16% safe-zone padding around the inner mark).
A+
Mobile UX Depth
1 mobile-depth signal(s) detected
PASS
1 mobile-depth signal(s) detected
Info::
No `<meta name="theme-color">` -- browser chrome falls back to default
Without `theme-color`, Android Chrome's status bar and iOS Safari's toolbar fall back to a generic gray. Adding a single hex color in `<meta name="theme-color" content="#0066cc">` tints them to your brand color across all mobile browsers.
A+
Color Contrast (Screenshot)
20 text elements analyzed, 0 fail WCAG AA
PASS

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

20 pass
Show all checked elements (20)
ElementRatioRequiredFGBGResult
h1 Many solutions - one…21.00:13.0:1
#000000
#FFFFFF
Pass
h2 Diehl Group21.00:13.0:1
#000000
#FFFFFF
Pass
h2 Energy Transition th…21.00:13.0:1
#000000
#FFFFFF
Pass
h2 Worldwide networked21.00:13.0:1
#000000
#FFFFFF
Pass
h2 News21.00:13.0:1
#000000
#FFFFFF
Pass
h2 Annual Report 202421.00:13.0:1
#000000
#FFFFFF
Pass
h2 Spotlights21.00:13.0:1
#000000
#FFFFFF
Pass
h2 One group. Five corp…21.00:13.0:1
#000000
#FFFFFF
Pass
h2 Not found what you…21.00:13.0:1
#000000
#FFFFFF
Pass
h2 Many solutions – o…21.00:13.0:1
#000000
#FFFFFF
Pass
h3 Tradition goes Futur…21.00:13.0:1
#000000
#FFFFFF
Pass
h3 With around 100 loca…21.00:13.0:1
#000000
#FFFFFF
Pass
h3 Successful SPIKE LR …21.00:13.0:1
#000000
#FFFFFF
Pass
h3 Diehl Defence and He…21.00:13.0:1
#000000
#FFFFFF
Pass
h3 Reducing Water Loss:…21.00:13.0:1
#000000
#FFFFFF
Pass
h3 Meet Diehl Metering…21.00:13.0:1
#000000
#FFFFFF
Pass
h3 Events of the Diehl21.00:13.0:1
#000000
#FFFFFF
Pass
h3 Diehl Informatik21.00:13.0:1
#000000
#FFFFFF
Pass
h3 Diehl Ventures21.00:13.0:1
#000000
#FFFFFF
Pass
title Diehl Group | Diehl …21.00:14.5:1
#000000
#FFFFFF
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
Lighthouse Accessibility Audits
Score 92/100 — 2 failing, 25 passed
PASS
92

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
Diehl Defence li.news-teaser > a.link-card > div.news-meta > span

These are opportunities to improve the legibility of your content.

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
Diehl Metall offers a broad spectrum of innovative products and technologies in… div.division-teaser > div.module-wrapper-inner > div.swiper > ul#swiper-wrapper-1058f6173594106c7b

These are opportunities to improve the experience of reading tabular or list data using 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.
ARIA attributes are used as specified for the element's role
Elements use only permitted ARIA attributes
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
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
`<video>` elements contain a `<track>` element with `[kind="captions"]`
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-hidden="true"]` elements do not contain focusable descendents
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
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.
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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