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https://sakura.ne.jp

Accessibility

· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.
SCORE
65
GRADE
D
FIX
4
REVIEW
5
PASS
4
INFO
0
Checks
13
4 PASS 5 REVIEW 4 FIX
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::
3 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 3 <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
Landmark Structure
10 landmarks
REVIEW
10 landmarks
Info::
<main> landmark present
Info::
3 <nav> landmark(s) found
Warning::
3 of 3 <nav> elements are unlabeled
Multiple navigations need aria-label to distinguish them for screen readers.
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

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

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 ページが見つかりません | さくらインターネット ✓Custom Styling ✓Navigation ✓Homepage Link ✓Search Form ✗
B
Favicon & Branding
5 icon(s) detected
REVIEW
5 icon(s) detected
Info::
favicon.ico present at site root
Info::
HTML icon links detected
Info::
Apple touch icon present
Info::
Multiple icon sizes detected
✓ favicon.ico Present
✓ PNG Icons Present
✓ Apple Touch Present
✗ SVG Favicon Missing
✗ Manifest Icons Missing
✓ Multiple Sizes Present
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 安心・安定の
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
24px · bottom of viewport
h2 さくらのレンタルサーバ
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
24px · bottom of viewport
h2 多くの方に選ばれています
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
24px · bottom of viewport
h2 ホームページ制作・運用を
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
24px · bottom of viewport
h2 強力にサポートする充実の機…
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
24px · bottom of viewport
h2 用途に合わせた豊富なプラン
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
24px · bottom of viewport
h2 ご利用の流れ
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
24px · bottom of viewport
h2 イベント・セミナー情報
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
24px · bottom of viewport
h2 お知らせ・機能追加情報
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
24px · bottom of viewport
h2 さくらのホームページ教室
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
24px · bottom of viewport
h2 まずは無料でレンタルサーバ…
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
24px · bottom of viewport
h3 お客さまに合わせた
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
19px · bottom of viewport
h3 多彩なプラン
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
19px · bottom of viewport
h3 専門知識不要で
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
19px · bottom of viewport
h3 ご利用できます
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
19px · bottom of viewport
h3 東証プライム上場企業が
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
19px · bottom of viewport
h3 運営しています
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
19px · bottom of viewport
h3 困ったときも、
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
19px · bottom of viewport
h3 安心万全のサポート体制
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
19px · bottom of viewport
h3 コンテンツブースト
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
19px · bottom of viewport
Show all checked elements (20)
ElementRatioRequiredFGBGResult
h2 安心・安定の1.66:13.0:1
#000000
#333333
Fail
h2 さくらのレン…1.66:13.0:1
#000000
#333333
Fail
h2 多くの方に選…1.66:13.0:1
#000000
#333333
Fail
h2 ホームページ…1.66:13.0:1
#000000
#333333
Fail
h2 強力にサポー…1.66:13.0:1
#000000
#333333
Fail
h2 用途に合わせ…1.66:13.0:1
#000000
#333333
Fail
h2 ご利用の流れ1.66:13.0:1
#000000
#333333
Fail
h2 イベント・セ…1.66:13.0:1
#000000
#333333
Fail
h2 お知らせ・機…1.66:13.0:1
#000000
#333333
Fail
h2 さくらのホー…1.66:13.0:1
#000000
#333333
Fail
h2 まずは無料で…1.66:13.0:1
#000000
#333333
Fail
h3 お客さまに合…1.66:13.0:1
#000000
#333333
Fail
h3 多彩なプラン1.66:13.0:1
#000000
#333333
Fail
h3 専門知識不要…1.66:13.0:1
#000000
#333333
Fail
h3 ご利用できま…1.66:13.0:1
#000000
#333333
Fail
h3 東証プライム…1.66:13.0:1
#000000
#333333
Fail
h3 運営していま…1.66:13.0:1
#000000
#333333
Fail
h3 困ったときも…1.66:13.0:1
#000000
#333333
Fail
h3 安心万全のサ…1.66:13.0:1
#000000
#333333
Fail
h3 コンテンツブ…1.66:13.0:1
#000000
#333333
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.

A+
Heading Hierarchy
36 headings
PASS
36 headings
Info::
Single H1 present
  • H1 あなたと成長し続けるレンタルサーバー
  • H2 安心・安定のさくらのレンタルサーバ多くの方に選ばれています
  • H3 お客さまに合わせた多彩なプラン
  • H3 専門知識不要でご利用できます
  • H3 東証プライム上場企業が運営しています
  • H3 困ったときも、安心万全のサポート体制
  • H2 ホームページ制作・運用を強力にサポートする充実の機能
  • H3 コンテンツブースト(CDN機能)
  • H3 Let’s Encrypt 無料SSL
  • H3 バックアップ＆ステージング
  • H3 SPF/DKIM/ARC/DMARC対応
  • H3 高精度迷惑メールフィルタ
  • H3 上位プランへ変更
  • H2 料金プラン用途に合わせた豊富なプラン
  • H3 ライト
  • H3 スタンダード
  • H3 ビジネス
  • H3 マネージドサーバミディアム
  • H3 ライト
  • H3 スタンダード
  • H3 ビジネス
  • H3 マネージドサーバミディアム
  • H3 ライト
  • H3 スタンダード
  • H3 ビジネス
  • H3 マネージドサーバミディアム
  • H2 ご利用の流れ
  • H3 他社からの乗り換え・移転
  • H2 イベント・セミナー情報
  • H3 「廃業」を考える前に知るべき『経営の出口戦略』 ―― スモールM&Aという選択肢
  • H3 2026年度のスタートに！これから始める“さくらのレンタルサーバ取次店制度”説明会 ─ 最新アップデートもまとめてお届け
  • H2 お知らせ・機能追加情報
  • H2 さくらのホームページ教室
  • H2 まずは無料でレンタルサーバーをお試しください
  • H3 初めてでも安心！ スタートアップガイド
  • H3 さくらのレンタルサーバ サービス紹介資料
A+
Alt Text Quality
All 32 images OK
PASS
All 32 images OK
Info::
21 decorative image(s) correctly marked
Info::
11 image(s) with good alt text
32 images 11 good alt text 21 decorative
All images have appropriate alt text.
A+
Form Accessibility
No form controls
PASS
No form controls
Info::
No form controls on this page
No form controls found.
A
Lighthouse Accessibility Audits
Score 93/100 — 2 failing, 24 passed
PASS
93

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

Using ARIA attributes in roles where they are prohibited can mean that important information is not communicated to users of assistive technologies. Learn more about prohibited ARIA roles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
利用できます div.plan-spec > dl > dd > span.c-icon-circle
利用できます div.plan-spec > dl > dd > span.c-icon-circle
利用できます div.plan-spec > dl > dd > span.c-icon-circle
利用できます div.plan-spec > dl > dd > span.c-icon-circle
利用できません div.plan-spec > dl > dd > span.c-icon-dash

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
おすすめ div#splide02-track > div#splide02-list > div#splide02-slide02 > span.label
01 ul.flow-list > li > figure.flow-figure > span
02 ul.flow-list > li > figure.flow-figure > span
03 ul.flow-list > li > figure.flow-figure > span
04 ul.flow-list > li > figure.flow-figure > span
2026/04/08 li.information-item > a.c-button > div.information-meta > time.information-date
お知らせ li.information-item > a.c-button > div.information-meta > span.information-category
2026/04/08 li.information-item > a.c-button > div.information-meta > time.information-date
お知らせ li.information-item > a.c-button > div.information-meta > span.information-category
2026/04/08 li.information-item > a.c-button > div.information-meta > time.information-date
2026/03/31 li.information-item > a.c-button > div.information-meta > time.information-date
お知らせ li.information-item > a.c-button > div.information-meta > span.information-category
2026/03/31 li.information-item > a.c-button > div.information-meta > time.information-date
お知らせ li.information-item > a.c-button > div.information-meta > span.information-category
2026/02/26 li.information-item > a.c-button > div.information-meta > time.information-date
お知らせ li.information-item > a.c-button > div.information-meta > span.information-category

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]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●Image elements have `[alt]` attributes
●`[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
●`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
●Definition list items are wrapped in `<dl>` elements
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●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
●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
●Uses ARIA roles only on compatible elements
○`[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
○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.
○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.
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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