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Accessibility

· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.
SCORE
50
GRADE
F
FIX
8
REVIEW
2
PASS
3
INFO
0
Checks
13
3 PASS 2 REVIEW 8 FIX
D
Landmark Structure
Action
No landmarks
FIX
No landmarks
Critical::
No <main> landmark found
Screen reader users cannot quickly navigate to the primary content. Wrap your main content in <main>.
Warning::
No <nav> landmark found
Info::
No banner (header) landmark
Info::
No contentinfo (footer) landmark
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.

No landmarks detected

Screen reader users have no way to navigate by region.

Screen reader users cannot quickly navigate to the primary content. Wrap your main content in <main>.

Why this matters

Without a <main> landmark, screen-reader users can't skip past the navigation to the page content — every page starts with re-reading the menu.

Learn more ▾

The <main> element marks the page's primary content area. Assistive tech offers a 'jump to main' shortcut — but only if <main> exists. Without it, every page navigation forces re-reading the header. Wrap your primary content in a single <main>.

Source: WAI-ARIA / WCAG 2.4.1

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

F
404 Error Page
Action
Soft 404 detected
FIX
Soft 404 detected
Critical::
Soft 404: server returns HTTP 200 for non-existent pages
The server returns HTTP 200 for a path that does not exist. Search engines will index these pages, diluting your real content. Configure your server to return a proper 404 status code for missing pages.
Got: Status: 200 for /beavercheck-404-test-kmzch2
404 Page Quality ✗ Soft 404 (HTTP 200)
Status Code: HTTP 200

The server returned HTTP 200 for a non-existent path. Search engines will index this page as real content. Configure your server to return HTTP 404 for missing pages.

F
Favicon & Branding
Action
2 icon(s) detected
FIX
2 icon(s) detected
Info::
favicon.ico present at site root
Info::
HTML icon links detected
Info::
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
F
Web Manifest
Action
Invalid JSON
FIX
Invalid JSON
Warning::
Manifest contains invalid JSON
Manifest at https://virtualbox.org/manifest.json contains invalid JSON. Browsers cannot parse it.
Got: https://virtualbox.org/manifest.json

Manifest contains invalid JSON.

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::
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
Back to Top
Hamburger Menu
Sticky Navigation Cannot reliably detect (CSS-based)
0 of 6 testable patterns navigation patterns detected. Limited navigation support. Consider adding breadcrumbs, search, and skip link.
D
Lighthouse Accessibility Audits
Action
Score 68/100 — 5 failing, 11 passed
FIX
68

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
ul > form > div > input#vboxsearch ul > form > div > input#vboxsearch

These are opportunities to improve the legibility of your content.

Names and labels

Labels ensure that form controls are announced properly by assistive technologies, like screen readers. Learn more about form element labels.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
ul > form > div > input#vboxsearch ul > form > div > input#vboxsearch

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
Home Download Documentation Community div#center > div#main > div#ctxtnav > ul

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
Oracle VirtualBox div#center > div#main > div#ctxtnav > li
Get Started div#opener > div.flexboxes > div.light > li
Community div.flexboxes_vertical > div#dark_background > a.dark > li
Documentation div.flexboxes_vertical > div#dark_background > a.dark > li
Training div.flexboxes_vertical > div#dark_background > a.dark > li

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

Best practices

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html html

These items highlight common accessibility best practices.

○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>`
●Image elements have `[alt]` attributes
●`[accesskey]` values are unique
●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
●Touch targets have sufficient size and spacing.
●Heading elements appear in a sequentially-descending order
●Identical links have the same purpose.
○`[aria-*]` attributes match their roles
○`button`, `link`, and `menuitem` elements have accessible names
○ARIA attributes are used as specified for the element's role
○Deprecated ARIA roles were not used
○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 use only permitted ARIA attributes
○`[role]`s have all required `[aria-*]` attributes
○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
○`[role]` values are valid
○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
○`[aria-*]` attributes have valid values
○`[aria-*]` attributes are valid and not misspelled
○Buttons have an accessible name
○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
○The document does not use `<meta http-equiv="refresh">`
○`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○No element has a `[tabindex]` value greater than 0
○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.
B
Form Accessibility
2 of 3 controls have issues
REVIEW
2 of 3 controls have issues
Critical::
2 control(s) without accessible label
Form controls need a <label>, aria-label, or aria-labelledby for screen readers.
Got: <input type="submit">; <input type="text" name="q" id="vboxsearch">
Info::
1 control(s) properly labeled
3 controls
1 labeled
0 placeholder only
2 unlabeled
ControlTypeLabelMethod
#proj-searchtextSearch:for/id
inputsubmit(none)none
#vboxsearchtext(none)none

Form controls need a <label>, aria-label, or aria-labelledby for screen readers.

<input type="submit">; <input type="text" name="q" id="vboxsearch">

Why this matters

Form controls without labels — assistive tech announces 'edit text' with no context; users can't complete forms.

Source: WCAG 2.1 SC 3.3.2

C
Color Contrast (Screenshot)
Action
20 text elements analyzed, 5 fail WCAG AA
REVIEW

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

15 pass 5 fail WCAG AA
a Download
2.61:1
#000000
on
#554F4C
needs 4.5:1 (normal text)
16px · mid-page
p Download VirtualBox binaries and platfor…
2.61:1
#000000
on
#554F4C
needs 4.5:1 (normal text)
16px · mid-page
li Community
2.61:1
#000000
on
#554F4C
needs 4.5:1 (normal text)
16px · mid-page
p Become a part of the VirtualBox communit…
2.61:1
#000000
on
#554F4C
needs 4.5:1 (normal text)
16px · mid-page
li Documentation
2.61:1
#000000
on
#554F4C
needs 4.5:1 (normal text)
16px · mid-page
Show all checked elements (20)
ElementRatioRequiredFGBGResult
h1 Welcome to VirtualBo…20.29:13.0:1
#000000
#FBFBFB
Pass
h3 Recent releases20.29:13.0:1
#000000
#FBFBFB
Pass
h3 Download in other fo…20.29:13.0:1
#000000
#FBFBFB
Pass
title Oracle VirtualBox21.00:14.5:1
#000000
#FFFFFF
Pass
label Search:21.00:14.5:1
#000000
#FFFFFF
Pass
a wiki:19.77:14.5:1
#000000
#F8F8F8
Pass
a WikiStart19.77:14.5:1
#000000
#F8F8F8
Pass
a Home19.77:14.5:1
#000000
#F8F8F8
Pass
a Download20.29:14.5:1
#000000
#FBFBFB
Pass
a Documentation19.26:14.5:1
#000000
#F5F5F5
Pass
a Community19.26:14.5:1
#000000
#F5F5F5
Pass
div Powerful open source…19.77:14.5:1
#000000
#F8F8F8
Pass
p For personal and ent…19.77:14.5:1
#000000
#F8F8F8
Pass
p VirtualBox is a gene…20.29:14.5:1
#000000
#FBFBFB
Pass
li Get Started19.77:14.5:1
#000000
#F8F8F8
Pass
a Download2.61:14.5:1
#000000
#554F4C
Fail
p Download VirtualBox …2.61:14.5:1
#000000
#554F4C
Fail
li Community2.61:14.5:1
#000000
#554F4C
Fail
p Become a part of the…2.61:14.5:1
#000000
#554F4C
Fail
li Documentation2.61:14.5:1
#000000
#554F4C
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
Heading Hierarchy
3 headings, 1 skip(s)
PASS
3 headings, 1 skip(s)
Info::
Single H1 present
Warning::
Heading level skipped: H1 → H3 (missing H2)
Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.
  • H1 Welcome to VirtualBox.org! ¶
  • H3 Recent releases skipped
  • H3 Download in other formats:

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 7 images OK
PASS
All 7 images OK
Info::
7 image(s) with good alt text
7 images 7 good alt text
All images have appropriate alt text.
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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