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Accessibility

· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.
SCORE
55
GRADE
D
FIX
7
REVIEW
3
PASS
3
INFO
0
Checks
13
3 PASS 3 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>.
Warning::
No <nav> landmark 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 MAIN (missing!) CONTENTINFO footer

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

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.
D
Lighthouse Accessibility Audits
Action
Score 66/100 — 5 failing, 12 passed
FIX
66

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.

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
form.nc3-as-box > div.nc3-c-search > div.nc3-c-search__recommend > button.nc3-js-carouselNav__left form.nc3-as-box > div.nc3-c-search > div.nc3-c-search__recommend > button.nc3-js-carouselNav__left
form.nc3-as-box > div.nc3-c-search > div.nc3-c-search__recommend > button.nc3-js-carouselNav__right form.nc3-as-box > div.nc3-c-search > div.nc3-c-search__recommend > button.nc3-js-carouselNav__right

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#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent
div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent
div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent
div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent
div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent
div#local-schedule__container > div#local-schedule__item > div.nc3-c-softCard > a div#local-schedule__container > div#local-schedule__item > div.nc3-c-softCard > a
div.nc3-c-gfooter-breadcrumb > div.l-footer-topic-path-inner > div.footer-topic-path-back-to-top > a.footer-topic-path-back-to-top-btn div.nc3-c-gfooter-breadcrumb > div.l-footer-topic-path-inner > div.footer-topic-path-back-to-top > a.footer-topic-path-back-to-top-btn

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
2026.4.17 div.nc3-c-articleCard > a > div.nc3-c-articleCard__sub > div.nc3-c-articleCard__dateAndPrice
2026.4.16 div.nc3-c-articleCard > a > div.nc3-c-articleCard__sub > div.nc3-c-articleCard__dateAndPrice
2026.4.16 div.nc3-c-articleCard > a > div.nc3-c-articleCard__sub > div.nc3-c-articleCard__dateAndPrice
2026.4.16 div.nc3-c-articleCard > a > div.nc3-c-articleCard__sub > div.nc3-c-articleCard__dateAndPrice
2026.4.21 ul#local-whatsnew > li.local-new__row > a.local-new__link > span.local-new__date
公式サイト li.local-new__row > a.local-new__link > div.local-new__badgeWrapper > span.local-new__badge
採用 li.local-new__row > a.local-new__link > div.local-new__badgeWrapper > span.local-new__badge
インタビュー li.local-new__row > a.local-new__link > div.local-new__badgeWrapper > span.local-new__badge
その他 li.local-new__row > a.local-new__link > div.local-new__badgeWrapper > span.local-new__badge
その他 li.local-new__row > a.local-new__link > div.local-new__badgeWrapper > span.local-new__badge
お客様へのお知らせ div.nc3-l-innerWidth > div.local-announcement__inner > p.local-announcement__headline > span
任天堂公式ソーシャルメディアアカウント footer#nc3-c-gfooter > div.nc3-c-gfooter-container > div.nc3-c-gfooter-sns > div.nc3-c-gfooter-sns__headline
会員向けオンラインストア li.nc3-c-gfooter-service__item > a > p.nc3-c-gfooter-service__text > span.nc3-c-gfooter-service__smallText
ポイントサービス li.nc3-c-gfooter-service__item > a > p.nc3-c-gfooter-service__text > span.nc3-c-gfooter-service__smallText
スマートフォン向けアプリ li.nc3-c-gfooter-service__item > a > p.nc3-c-gfooter-service__text > span.nc3-c-gfooter-service__smallText
有料オンラインサービス li.nc3-c-gfooter-service__item > a > p.nc3-c-gfooter-service__text > span.nc3-c-gfooter-service__smallText

These are opportunities to improve the legibility of your content.

Best practices

Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
head > meta head > meta

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.loader-type-default html.loader-type-default

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
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●Touch targets have sufficient size and spacing.
●Heading elements appear in a sequentially-descending order
●Image elements do not have `[alt]` attributes that are redundant text.
●Identical links have the same purpose.
○`[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 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
○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
○Form elements have associated labels
○Links are distinguishable without relying on color.
○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
○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.
C
404 Error Page
Action
HTTP 404, custom page
REVIEW
HTTP 404, custom page
Info::
Correct 404 status code returned
Got: HTTP 404
Info::
Custom styled 404 page
404 Page Quality ✓ Custom 404 Page
Status Code HTTP 404 ✓Page Title ご指定のページが見つかりませんでした。｜任天堂 ✓Custom Styling ✓Navigation ✗Homepage Link ✗Search Form ✗
C
Favicon & Branding
Action
3 icon(s) detected
REVIEW
3 icon(s) detected
Info::
favicon.ico present at site root
Info::
HTML icon links detected
Info::
Apple touch icon present
✓ favicon.ico Present
✓ PNG Icons Present
✓ Apple Touch Present
✗ SVG Favicon Missing
✗ Manifest Icons Missing
✗ Multiple Sizes Missing
C
Color Contrast (Screenshot)
Action
20 text elements analyzed, 3 fail WCAG AA
REVIEW

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

17 pass 3 fail WCAG AA 1 pass AA only
title 任天堂ホームページ
4.37:1
#000000
on
#E60012
needs 4.5:1 (normal text)
16px · top of page (header area)
span さがす
4.37:1
#000000
on
#E60012
needs 4.5:1 (normal text)
16px · top of page (header area)
span ストア
4.37:1
#000000
on
#E60012
needs 4.5:1 (normal text)
16px · top of page (header area)
Show all checked elements (20)
ElementRatioRequiredFGBGResult
title 任天堂ホーム…4.37:14.5:1
#000000
#E60012
Fail
span さがす4.37:14.5:1
#000000
#E60012
Fail
span ストア4.37:14.5:1
#000000
#E60012
Fail
span ログイン6.84:14.5:1
#000000
#F06671
Pass
span 本体21.00:14.5:1
#000000
#FFFFFF
Pass
span ・21.00:14.5:1
#000000
#FFFFFF
Pass
span グッズ21.00:14.5:1
#000000
#FFFFFF
Pass
span ゲームソフト21.00:14.5:1
#000000
#FFFFFF
Pass
span トピックス21.00:14.5:1
#000000
#FFFFFF
Pass
span キャラクター21.00:14.5:1
#000000
#FFFFFF
Pass
span サポート21.00:14.5:1
#000000
#FFFFFF
Pass
span さがす21.00:14.5:1
#000000
#FFFFFF
Pass
span マリオ21.00:14.5:1
#000000
#FFFFFF
Pass
span ドンキーコン…21.00:14.5:1
#000000
#FFFFFF
Pass
span ゼルダの伝説21.00:14.5:1
#000000
#FFFFFF
Pass
span どうぶつの森21.00:14.5:1
#000000
#FFFFFF
Pass
span スプラトゥー…21.00:14.5:1
#000000
#FFFFFF
Pass
span ピクミン21.00:14.5:1
#000000
#FFFFFF
Pass
span ポケモン21.00:14.5:1
#000000
#FFFFFF
Pass
span 星のカービィ21.00:14.5:1
#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.

A+
Heading Hierarchy
1 headings
PASS
1 headings
Info::
Single H1 present
Warning::
1 empty heading(s)
Empty headings appear in the document outline but provide no information.
  • H1 (empty)

Empty headings appear in the document outline but provide no information.

Why this matters

Empty <hN> tags break the document outline — screen-reader users navigating by heading hit dead silence.

Source: WCAG 2.4.6

A+
Alt Text Quality
All 94 images OK
PASS
All 94 images OK
Info::
25 decorative image(s) correctly marked
Info::
69 image(s) with good alt text
94 images 69 good alt text 25 decorative
All images have appropriate alt text.
A
Form Accessibility
1 of 1 controls have issues
PASS
1 of 1 controls have issues
Warning::
1 control(s) rely on placeholder only
Placeholder text disappears on focus and is not a reliable label.
Got: <input type="search">
1 controls
0 labeled
1 placeholder only
0 unlabeled
ControlTypeLabelMethod
inputsearch(キーワードを入力してください)placeholder only

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

<input type="search">

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

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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