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Accessibility

· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.
SCORE
52
GRADE
F
FIX
7
REVIEW
5
PASS
1
INFO
0
Checks
13
1 PASS 5 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::
1 <nav> landmark(s) 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.
Page Structure — as a screen reader sees it
BANNER (missing!) NAV "Main" 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

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
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: #00979d
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.
B
Heading Hierarchy
6 headings
REVIEW
6 headings
Critical::
No H1 heading found
Every page should have one H1 that describes the page content.
  • H3 Arduino VENTUNO Q: Where AI takes action
  • H3 Empowering anyone to innovate
  • H2 The easy-to-use hardware
and software platform
  • H3 Mission & Vision
  • H3 Learn Arduino
  • H2 Notice

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
Form Accessibility
2 of 2 controls have issues
REVIEW
2 of 2 controls have issues
Critical::
1 control(s) without accessible label
Form controls need a <label>, aria-label, or aria-labelledby for screen readers.
Got: <textarea name="g-recaptcha-response" id="g-recaptcha-response-100000">
Warning::
1 control(s) rely on placeholder only
Placeholder text disappears on focus and is not a reliable label.
Got: <input type="email">
2 controls
0 labeled
1 placeholder only
1 unlabeled
ControlTypeLabelMethod
inputemail(Enter your e-mail to sign up)placeholder only
#g-recaptcha-response-100000textarea(none)none

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

<textarea name="g-recaptcha-response" id="g-recaptcha-response-100000">

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

Placeholder text disappears on focus and is not a reliable label.

<input type="email">

Why this matters

Placeholder-only labels disappear when the user starts typing — they must remember what the field was for.

Learn more ▾

Placeholders are NOT labels. They vanish on input, fail color contrast checks (most are gray), and don't satisfy WCAG SC 3.3.2. Always use a real <label> alongside (or aria-labelledby).

Source: WCAG 2.1 SC 3.3.2 / Nielsen Norman

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
Info::
Homepage link present on 404 page
404 Page Quality ✓ Custom 404 Page
Status Code HTTP 404 ✓Page Title Arduino - Home ✓Custom Styling ✓Navigation ✓Homepage Link ✓Search Form ✗
C
Color Contrast (Screenshot)
Action
20 text elements analyzed, 1 fail WCAG AA
REVIEW

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

19 pass 1 fail WCAG AA
a For Education
4.47:1
#000000
on
#008184
needs 4.5:1 (normal text)
16px · top of page (header area)
Show all checked elements (20)
ElementRatioRequiredFGBGResult
h2 The easy-to-use hard…21.00:13.0:1
#000000
#FFFFFF
Pass
h2 Notice21.00:13.0:1
#000000
#FFFFFF
Pass
h3 Arduino VENTUNO Q: W…21.00:13.0:1
#000000
#FFFFFF
Pass
h3 Empowering anyone to…21.00:13.0:1
#000000
#FFFFFF
Pass
h3 Mission & Vision21.00:13.0:1
#000000
#FFFFFF
Pass
h3 Learn Arduino21.00:13.0:1
#000000
#FFFFFF
Pass
title Arduino - Home13.08:14.5:1
#000000
#CCCCCC
Pass
span Solutions13.08:14.5:1
#000000
#CCCCCC
Pass
a For Professionals10.70:14.5:1
#000000
#B9B9B9
Pass
a For Education4.47:14.5:1
#000000
#008184
Fail
a For Makers11.98:14.5:1
#000000
#99CDCE
Pass
span Products21.00:14.5:1
#000000
#FFFFFF
Pass
span Community21.00:14.5:1
#000000
#FFFFFF
Pass
span Documentation21.00:14.5:1
#000000
#FFFFFF
Pass
a Shop21.00:14.5:1
#000000
#FFFFFF
Pass
a Cloud21.00:14.5:1
#000000
#FFFFFF
Pass
a Shop21.00:14.5:1
#000000
#FFFFFF
Pass
a Cloud21.00:14.5:1
#000000
#FFFFFF
Pass
a For Professionals21.00:14.5:1
#000000
#FFFFFF
Pass
a For Education21.00:14.5:1
#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.

B
Lighthouse Accessibility Audits
Score 84/100 — 4 failing, 27 passed
REVIEW
84

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

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
SHOP Cloud For Professionals For Education For Makers Products Community Docume… nav._Root_q55wc_1 > div._Header-menusheet_93jou_144 > div._Header-menusheet_root_93jou_168 > div

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.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div > nav._Root_q55wc_1 > div._Header-inner_93jou_13 > button._Header-hamburgher_93jou_90 div > nav._Root_q55wc_1 > div._Header-inner_93jou_13 > button._Header-hamburgher_93jou_90

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 > div._Header-menusheet-group_93jou_223 > div._StandardHeader-mobile-buttons_1go1u_9 > a._Typography_6tld9_1 div > div._Header-menusheet-group_93jou_223 > div._StandardHeader-mobile-buttons_1go1u_9 > a._Typography_6tld9_1

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.

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
Bring your IoT projects to life quickly div#content-page-cRxHrrg9SD2c58bY5VmNug > div.product-list > div.product-list__item > div.product-list__description
DISCOVER CLOUD div.product-list__buttons > div.button-list > a.button-list__item > span
EDUCATION div.solution-card > div.solution-card--info > div.tag-content > span
ABOUT ARDUINO div._Footer__row_1usg3_14 > div._Footer__column_1usg3_69 > div._Footer__column--link-list_1usg3_108 > a._Typography_6tld9_1
CAREERS div._Footer__row_1usg3_14 > div._Footer__column_1usg3_69 > div._Footer__column--link-list_1usg3_108 > a._Typography_6tld9_1

These are opportunities to improve the legibility of your content.

○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]`s are contained by their required parent element
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●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 with `role="dialog"` or `role="alertdialog"` have accessible names.
●`[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.
●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"]`
●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.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○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
○Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
○List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
○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.
○Uses ARIA roles only on compatible elements
○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+
Alt Text Quality
1 of 40 images have issues
PASS
1 of 40 images have issues
Warning::
1 image(s) with generic alt text
Info::
4 decorative image(s) correctly marked
Info::
35 image(s) with good alt text
40 images 35 good alt text 4 decorative 1 generic
IssueCount
generic1 image(s)
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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