Skip to content
https://caddyserver.com

Accessibility

· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.
SCORE
47
GRADE
F
FIX
8
REVIEW
2
PASS
3
INFO
0
Checks
13
3 PASS 2 REVIEW 8 FIX
F
Alt Text Quality
Action
80 of 108 images have issues
FIX
80 of 108 images have issues
Critical::
74 image(s) missing alt attribute
Images without alt text are invisible to screen readers.
Critical::
3 image-in-link without alt text
An image inside a link with no alt creates an empty link.
Warning::
6 image(s) with generic alt text
Info::
28 image(s) with good alt text
108 images 28 good alt text 6 generic 74 missing
IssueCount
missing74 image(s)
generic6 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

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 Custom Styling Navigation Homepage Link Search Form
F
Favicon & Branding
Action
1 icon(s) detected
FIX
1 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::
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 Missing
PNG Icons Present
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
Theme color only
FIX
Theme color only
Info::
Theme-color present but no dark variant
A theme-color is set but no dark-specific variant was found. The browser toolbar may not adapt for dark mode users.
Got: #1b3143
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 ModePartial Dark Mode
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::
1 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 1 <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.
C
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 Caddy
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
24px · bottom of viewport
h2 and
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
24px · bottom of viewport
h2 TLS certificates for
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
24px · bottom of viewport
h2 The
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
24px · bottom of viewport
h2 HTTPS server
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Experience it
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Deploy your own PKI with Caddy
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Recommended by experts
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
24px · bottom of viewport
h2 A forward-thinking reverse proxy
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Production-grade static file server
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Flexible configuration compatible with a…
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Unparalleled extensibility
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
24px · bottom of viewport
h2 4x faster PHP apps
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
24px · bottom of viewport
h2 The
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
24px · bottom of viewport
h2 web server
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Take everyone's word for it
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
24px · bottom of viewport
h3 Sponsored by
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
19px · bottom of viewport
h3 HTTPS/TLS for custom domains
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
19px · bottom of viewport
h3 Dynamically provision certificates
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
19px · bottom of viewport
h3 Massively scale your TLS
1.78:1
#000000
on
#0B376C
needs 3.0:1 (large text)
19px · bottom of viewport
Show all checked elements (20)
ElementRatioRequiredFGBGResult
h2 Caddy1.78:13.0:1
#000000
#0B376C
Fail
h2 and1.78:13.0:1
#000000
#0B376C
Fail
h2 TLS certificates for1.78:13.0:1
#000000
#0B376C
Fail
h2 The1.78:13.0:1
#000000
#0B376C
Fail
h2 HTTPS server1.78:13.0:1
#000000
#0B376C
Fail
h2 Experience it1.78:13.0:1
#000000
#0B376C
Fail
h2 Deploy your own PKI …1.78:13.0:1
#000000
#0B376C
Fail
h2 Recommended by exper…1.78:13.0:1
#000000
#0B376C
Fail
h2 A forward-thinking r…1.78:13.0:1
#000000
#0B376C
Fail
h2 Production-grade sta…1.78:13.0:1
#000000
#0B376C
Fail
h2 Flexible configurati…1.78:13.0:1
#000000
#0B376C
Fail
h2 Unparalleled extensi…1.78:13.0:1
#000000
#0B376C
Fail
h2 4x faster PHP apps1.78:13.0:1
#000000
#0B376C
Fail
h2 The1.78:13.0:1
#000000
#0B376C
Fail
h2 web server1.78:13.0:1
#000000
#0B376C
Fail
h2 Take everyone's word…1.78:13.0:1
#000000
#0B376C
Fail
h3 Sponsored by1.78:13.0:1
#000000
#0B376C
Fail
h3 HTTPS/TLS for custom…1.78:13.0:1
#000000
#0B376C
Fail
h3 Dynamically provisio…1.78:13.0:1
#000000
#0B376C
Fail
h3 Massively scale your…1.78:13.0:1
#000000
#0B376C
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.

C
Lighthouse Accessibility Audits
Action
Score 76/100 — 7 failing, 21 passed
REVIEW
76

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.

ARIA

When an input field doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn more about input field labels.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
00:04 div.ap-wrapper > div.ap-player > div.ap-control-bar > span.ap-timer

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

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
All you need for TLS and PKI 🔐 div.wrapper > div.feature > div.col > h3.green
On-line config API ⚡️ div.wrapper > div.feature > div.col > h3.purple
HTTPS for localhost 🏠 div.wrapper > div.feature > div.col > h3.purple
Fewer moving parts ⚙️ div.wrapper > div.feature > div.col > h3.green
CNAME div.demobox > p.demo-ips > code > span.record-type
AAAA div.demobox > p.demo-ips > code > span.record-type
Smallstep libraries section.diagonal > div.wrapper > p > a
Internal and localhost certificates div.wrapper > div.asides > div > h3.purple
Keep certificates renewed div.wrapper > div.asides > div > h3.green
https://doi.org/10.1145/3319535.3363192 div.cols > div.col > p.cite > a
https://www.usenix.org/conference/usenixsecurity17/technical-sessions/presentat… div.cols > div.col > p.cite > a
https://doi.org/10.1145/2987443.2987480 div.cols > div.col > p.cite > a
intuitive, programmable REST API div.asides > div > p > a
Caddyfile div.asides > div > p > a
just ~15-25% the size of a less-capable nginx config div.asides > div > p > a
config adaptation div.asides > div > p > a
Unlimited power div.cols > div.col > h3.green > a
Native CPU performance div.wrapper > div.cols > div.col > h3.purple
OCSP stapling saves the day div.wrapper > div.cols > div.col > h3.green
On guard against revocation div.wrapper > div.cols > div.col > h3.purple

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
div.cols > div.col > div.sponsor-experience > img.experience-logo div.cols > div.col > div.sponsor-experience > img.experience-logo
div.cols > div.col > a > img.cite div.cols > div.col > a > img.cite
div.cols > div.col > a > img.cite div.cols > div.col > a > img.cite
div.cols > div.col > a > img.cite div.cols > div.col > a > img.cite
div.cols > div.col > div.sponsor-experience > img.experience-logo div.cols > div.col > div.sponsor-experience > img.experience-logo
div.wrapper > div.cols > div.col > img.gallery div.wrapper > div.cols > div.col > img.gallery
div.wrapper > div.cols > div.col > img.gallery div.wrapper > div.cols > div.col > img.gallery
section.frankenphp > div.wrapper > div.asides > img.franken-mascot section.frankenphp > div.wrapper > div.asides > img.franken-mascot
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture
div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture div.testimonials > div.testimonial-col > div.testimonial > img.testimonial-picture

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.asides > div > div.action-buttons > iframe.github-stars div.asides > div > div.action-buttons > iframe.github-stars

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.wrapper > div.cols > div.col > a div.wrapper > div.cols > div.col > a
div.wrapper > div.cols > div.col > a div.wrapper > div.cols > div.col > a
div.wrapper > div.cols > div.col > a div.wrapper > div.cols > div.col > 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

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Sponsored by leaders div.wrapper > div.hero-content > div.sponsors-leaders > h3

These are opportunities to improve keyboard navigation in your application.

Internationalization and localization

If a page doesn't specify a `lang` attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. Learn more about the `lang` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html html

These are opportunities to improve the interpretation of your content by users in different locales.

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
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
`button`, `link`, and `menuitem` elements have accessible names
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
Links are distinguishable without relying on color.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
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.
`[lang]` attributes have a valid value
Document has a main landmark.
Deprecated ARIA roles were not used
Identical links have the same purpose.
`[accesskey]` values are unique
Elements with `role="dialog"` or `role="alertdialog"` 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
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
`<html>` element has a valid value for its `[lang]` attribute
`<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
Form elements have associated labels
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.
`<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
Landmark Structure
4 landmarks
PASS
4 landmarks
Info::
<main> landmark present
Info::
1 <nav> landmark(s) found
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 CONTENTINFO footer

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

A
Heading Hierarchy
44 headings, 1 skip(s)
PASS
44 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 The Ultimate Server makes your sites more secure, more reliable, and more scalable than any other solution.
  • H3 Sponsored by leaders skipped
  • H2 By default, Caddy automatically obtains and renews TLS certificates for all your sites.
  • H3 HTTPS/TLS for custom domains
  • H3 Dynamically provision certificates
  • H3 Massively scale your TLS
  • H3 sponsored by users like you
  • H2 The most advanced HTTPS server in the world
  • H3 All you need for TLS and PKI 🔐
  • H3 On-line config API ⚡️
  • H3 PCI, HIPAA, and NIST compliant ✅
  • H3 HTTPS for localhost 🏠
  • H3 Cluster coordination 🌐
  • H3 Fewer moving parts ⚙️
  • H2 Experience it
  • H2 Deploy your own PKI with Caddy
  • H3 Internal and localhost certificates
  • H3 Make and use your own CAs
  • H3 Keep certificates renewed
  • H2 Recommended by experts
  • H2 A forward-thinking reverse proxy
  • H3 Proxy HTTP, FastCGI, WebSockets, and more
  • H3 Dynamic backends
  • H3 High availability
  • H3 software assurance
  • H2 Production-grade static file server
  • H3 Compression
  • H3 Virtual file systems
  • H3 Range requests, Etags, and more
  • H3 Directory file browser
  • H2 Flexible configuration compatible with any workflow
  • H3 JSON config API
  • H3 Caddyfile
  • H3 Config adapters
  • H2 Unparalleled extensibility
  • H3 Unlimited power
  • H3 Native CPU performance
  • H3 Easy to develop
  • H2 4x faster PHP apps
  • H2 The gold standard web server
  • H3 OCSP stapling saves the day
  • H3 On guard against revocation
  • H3 Stands tall during audits
  • H2 Take everyone's word for it

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+
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.

Send Feedback