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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
7
REVIEW
4
PASS
2
INFO
0
Checks
13
2 PASS 4 REVIEW 7 FIX
D
Landmark Structure
Action
2 landmarks
FIX
2 landmarks
Critical::
No <main> landmark found
Screen reader users cannot quickly navigate to the primary content. Wrap your main content in <main>.
Info::
2 <nav> landmark(s) found
Warning::
2 of 2 <nav> elements are unlabeled
Multiple navigations need aria-label to distinguish them for screen readers.
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.
Page Structure — as a screen reader sees it
BANNER (missing!) NAV MAIN (missing!) CONTENTINFO (missing!)

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

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

F
Alt Text Quality
Action
7 of 9 images have issues
FIX
7 of 9 images have issues
Critical::
7 image(s) missing alt attribute
Images without alt text are invisible to screen readers.
Critical::
6 image-in-link without alt text
An image inside a link with no alt creates an empty link.
Info::
1 decorative image(s) correctly marked
Info::
1 image(s) with good alt text
9 images 1 good alt text 1 decorative 7 missing
IssueCount
missing7 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

An image inside a link with no alt creates an empty link.

Why this matters

Image-only links with no alt create empty links — screen-reader users hear 'link' with no destination context.

Learn more

An <a><img></a> with no img alt is the worst-case for accessibility: AT announces the link but can't describe where it goes. Either add alt to the image OR add aria-label to the link.

Source: WCAG 2.1 SC 2.4.4

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::
2 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 2 <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
Heading Hierarchy
2 headings
REVIEW
2 headings
Critical::
No H1 heading found
Every page should have one H1 that describes the page content.
  • H4 Your Donations Help Support NTP -- Donate Today!
  • H4 Welcome to the home of the Network Time Protocol (NTP) Project.

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

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
404 Page Quality Custom 404 Page
Status Code HTTP 404 Page Title 404 - Page Not Found Custom Styling Navigation Homepage Link Search Form
C
Favicon & Branding
Action
6 icon(s) detected
REVIEW
6 icon(s) detected
Warning::
No favicon.ico at site root
Some older browsers, bookmark tools, and RSS readers look for /favicon.ico. Add one as a fallback.
Info::
HTML icon links detected
Info::
Apple touch icon present
Info::
Multiple icon sizes detected
favicon.ico Missing
PNG Icons Present
Apple Touch Present
SVG Favicon Missing
Manifest Icons Missing
Multiple Sizes Present
C
Lighthouse Accessibility Audits
Action
Score 79/100 — 6 failing, 20 passed
REVIEW
79

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
SUPPORT div.container-fluid > div > button.btn > a.nav-item
REFERENCE LIBRARY div.container-fluid > div > button.btn > a.nav-item
DOCUMENTATION div.container-fluid > div > button.btn > a.nav-item
DONATE div.container-fluid > div > button.btn > a.nav-item
DOWNLOAD NTP body > section.min-vh-100 > button.btn > a.btn
REPORT A BUG body > section.min-vh-100 > button.btn > a.btn
© 2026 Network Time Foundation nav.site-footer > div.container > ul.mx-auto > p
Network Time Foundation div.container > ul.mx-auto > p > a.navbar-text

These are opportunities to improve the legibility of your content.

Names and labels

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
section.min-vh-100 > div.card > div.card-body > img.figure-img section.min-vh-100 > div.card > div.card-body > img.figure-img
section.min-vh-100 > button.btn > a.btn > img section.min-vh-100 > button.btn > a.btn > img
section.min-vh-100 > button.btn > a.btn > img section.min-vh-100 > button.btn > a.btn > img
ul.navbar-nav > li.nav-item > a.nav-link > img ul.navbar-nav > li.nav-item > a.nav-link > img
ul.navbar-nav > li.nav-item > a.nav-link > img ul.navbar-nav > li.nav-item > a.nav-link > img
ul.navbar-nav > li.nav-item > a.nav-link > img ul.navbar-nav > li.nav-item > a.nav-link > img
ul.navbar-nav > li.nav-item > a.nav-link > img ul.navbar-nav > li.nav-item > a.nav-link > img

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
nav.navbar > div.container-fluid > div > a.navbar-brand nav.navbar > div.container-fluid > div > a.navbar-brand
div.container > ul.navbar-nav > li.nav-item > a.nav-link div.container > ul.navbar-nav > li.nav-item > a.nav-link
div.container > ul.navbar-nav > li.nav-item > a.nav-link div.container > ul.navbar-nav > li.nav-item > a.nav-link
div.container > ul.navbar-nav > li.nav-item > a.nav-link div.container > ul.navbar-nav > li.nav-item > a.nav-link
div.container > ul.navbar-nav > li.nav-item > a.nav-link div.container > ul.navbar-nav > li.nav-item > a.nav-link

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
© 2026 Network Time Foundation body > nav.site-footer > div.container > ul.mx-auto

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

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
SUPPORT nav.navbar > div.container-fluid > div > button.btn
SUPPORT div.container-fluid > div > button.btn > a.nav-item
REFERENCE LIBRARY nav.navbar > div.container-fluid > div > button.btn
REFERENCE LIBRARY div.container-fluid > div > button.btn > a.nav-item
DOCUMENTATION nav.navbar > div.container-fluid > div > button.btn
DOCUMENTATION div.container-fluid > div > button.btn > a.nav-item
DONATE nav.navbar > div.container-fluid > div > button.btn
DOWNLOAD NTP body > section.min-vh-100 > button.btn
REPORT A BUG body > section.min-vh-100 > button.btn

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-*]` 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
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
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.
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
Heading elements appear in a sequentially-descending order
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
`<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">`
`<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.
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
#gsc-i-id1textsearcharia-label
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
title Welcome to the home …21.00:14.5:1
#000000
#FFFFFF
Pass
a Support21.00:14.5:1
#000000
#FFFFFF
Pass
a Reference Library21.00:14.5:1
#000000
#FFFFFF
Pass
a Documentation21.00:14.5:1
#000000
#FFFFFF
Pass
a Donate21.00:14.5:1
#000000
#FFFFFF
Pass
div Custom Search21.00:14.5:1
#000000
#FFFFFF
Pass
div Sort by21.00:14.5:1
#000000
#FFFFFF
Pass
div Relevance11.43:14.5:1
#000000
#94C5EA
Pass
div Date11.43:14.5:1
#000000
#94C5EA
Pass
a Your Donations Help …11.43:14.5:1
#000000
#94C5EA
Pass
h4 Welcome to the home …11.43:13.0:1
#000000
#94C5EA
Pass
p The NTP Project cond…21.00:14.5:1
#000000
#FFFFFF
Pass
p The NTP Project prod…21.00:14.5:1
#000000
#FFFFFF
Pass
a open source Referenc…21.00:14.5:1
#000000
#FFFFFF
Pass
p of the NTP standard,…21.00:14.5:1
#000000
#FFFFFF
Pass
a Documentation21.00:14.5:1
#000000
#FFFFFF
Pass
p , and develops the p…21.00:14.5:1
#000000
#FFFFFF
Pass
a Reference Library21.00:14.5:1
#000000
#FFFFFF
Pass
p Network Time Foundat…21.00:14.5:1
#000000
#FFFFFF
Pass
a Foundation’s work21.00:14.5:1
#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.

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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