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https://cygwin.com

Accessibility

· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.
SCORE
54
GRADE
F
FIX
7
REVIEW
2
PASS
4
INFO
0
Checks
13
4 PASS 2 REVIEW 7 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
HTTP 404, bare page
FIX
HTTP 404, bare page
Info::
Correct 404 status code returned
Got: HTTP 404
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 404 Page Title 404 Not Found Custom Styling Navigation Homepage Link Search Form
F
Favicon & Branding
Action
1 icon(s) detected
FIX
1 icon(s) detected
Info::
favicon.ico present at site root
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 Missing
Apple Touch Missing
SVG Favicon Missing
Manifest Icons Missing
Multiple Sizes Missing
D
Web Manifest
Action
Not found
FIX
Not found
Info::
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.

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.
C
Color Contrast (Screenshot)
Action
20 text elements analyzed, 9 fail WCAG AA
REVIEW

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

11 pass 9 fail WCAG AA
h1 Cygwin
1.76:1
#000000
on
#373737
needs 3.0:1 (large text)
32px · bottom of viewport
h1 This is the home of the Cygwin project
1.76:1
#000000
on
#373737
needs 3.0:1 (large text)
32px · bottom of viewport
h2 What...
1.76:1
#000000
on
#373737
needs 3.0:1 (large text)
24px · bottom of viewport
h2 ...is it?
1.76:1
#000000
on
#373737
needs 3.0:1 (large text)
24px · bottom of viewport
h2 ...isn't it?
1.76:1
#000000
on
#373737
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Cygwin version
1.76:1
#000000
on
#373737
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Note to users of older Windows versions
1.76:1
#000000
on
#373737
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Installing Cygwin
1.76:1
#000000
on
#373737
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Support for Cygwin
1.76:1
#000000
on
#373737
needs 3.0:1 (large text)
24px · bottom of viewport
Show all checked elements (20)
ElementRatioRequiredFGBGResult
h1 Cygwin1.76:13.0:1
#000000
#373737
Fail
h1 This is the home of …1.76:13.0:1
#000000
#373737
Fail
h2 What...1.76:13.0:1
#000000
#373737
Fail
h2 ...is it?1.76:13.0:1
#000000
#373737
Fail
h2 ...isn't it?1.76:13.0:1
#000000
#373737
Fail
h2 Cygwin version1.76:13.0:1
#000000
#373737
Fail
h2 Note to users of old…1.76:13.0:1
#000000
#373737
Fail
h2 Installing Cygwin1.76:13.0:1
#000000
#373737
Fail
h2 Support for Cygwin1.76:13.0:1
#000000
#373737
Fail
title Cygwin18.59:14.5:1
#000000
#F1F1F1
Pass
a Cygwin17.14:14.5:1
#000000
#E8E8E8
Pass
a Install Cygwin9.04:14.5:1
#000000
#AAAAAA
Pass
a Update Cygwin21.00:14.5:1
#000000
#FFFFFF
Pass
a Search Packages21.00:14.5:1
#000000
#FFFFFF
Pass
a Licensing Terms19.43:14.5:1
#000000
#F6F6F6
Pass
a Cygwin/X18.59:14.5:1
#000000
#F1F1F1
Pass
a Community21.00:14.5:1
#000000
#FFFFFF
Pass
a Reporting Problems21.00:14.5:1
#000000
#FFFFFF
Pass
a Mailing Lists16.21:14.5:1
#000000
#E2E2E2
Pass
a Newsgroups19.43:14.5:1
#000000
#F6F6F6
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.

C
Lighthouse Accessibility Audits
Action
Score 78/100 — 3 failing, 9 passed
REVIEW
78

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
Cygwin div#navbar > ul > li > a
Install Cygwin li.nohover > ul > li > a
Update Cygwin li.nohover > ul > li > a
Search Packages li.nohover > ul > li > a
Licensing Terms li.nohover > ul > li > a
Cygwin/X div#navbar > ul > li > a
Community div#navbar > ul > li > a
Reporting Problems li.nohover > ul > li > a
Mailing Lists li.nohover > ul > li > a
Newsgroups li.nohover > ul > li > a
IRC channels li.nohover > ul > li > a
Gold Stars li.nohover > ul > li > a.gold
Mirror Sites li.nohover > ul > li > a
Donations li.nohover > ul > li > a
Documentation div#navbar > ul > li > a
FAQ li.nohover > ul > li > a
User's Guide li.nohover > ul > li > a
API Reference li.nohover > ul > li > a
Acronyms li.nohover > ul > li > a
Contributing div#navbar > ul > li > a
Source in Git li.nohover > ul > li > a
Cygwin DLL li.nohover > ul > li > a
Cygwin Packages li.nohover > ul > li > a
Cygwin Apps li.nohover > ul > li > a
Related Sites div#navbar > ul > li > a

These are opportunities to improve the legibility of your content.

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
Cygwin div#navbar > ul > li > a
Install Cygwin li.nohover > ul > li > a
Update Cygwin li.nohover > ul > li > a
Search Packages li.nohover > ul > li > a
Licensing Terms li.nohover > ul > li > a
Community div#navbar > ul > li > a
Reporting Problems li.nohover > ul > li > a
Mailing Lists li.nohover > ul > li > a
Newsgroups li.nohover > ul > li > a
IRC channels li.nohover > ul > li > a
Gold Stars li.nohover > ul > li > a.gold
Mirror Sites li.nohover > ul > li > a
Donations li.nohover > ul > li > a
FAQ li.nohover > ul > li > a
User's Guide li.nohover > ul > li > a
API Reference li.nohover > ul > li > a
Acronyms li.nohover > ul > li > a
Contributing div#navbar > ul > li > a
Source in Git li.nohover > ul > li > a
Cygwin DLL li.nohover > ul > li > a
Cygwin Packages li.nohover > ul > li > a
Cygwin Apps li.nohover > ul > li > a

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>`
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
Heading elements appear in a sequentially-descending order
`[accesskey]` values are unique
`[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.
Image elements have `[alt]` attributes
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">`
`[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.
Identical links have the same purpose.
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.
A
Heading Hierarchy
9 headings
PASS
9 headings
Warning::
Multiple H1 headings (2 found)
A page should have only one H1. Multiple H1s dilute the document outline.
  • H1 Cygwin
  • H1 This is the home of the Cygwin project duplicate H1
  • H2 What...
  • H2 ...is it?
  • H2 ...isn't it?
  • H2 Cygwin version
  • H2 Note to users of older Windows versions
  • H2 Installing Cygwin
  • H2 Support for Cygwin

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
No images
PASS
No images
Info::
No images on this page
No images on this page.
A+
Form Accessibility
No form controls
PASS
No form controls
Info::
No form controls on this page
No form controls found.
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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