Accessibility

· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Checks

1 PASS 6 REVIEW 6 FIX

404 Error Page

Action

Soft 404 detected

FIX

Soft 404 detected

Soft 404: server returns HTTP 200 for non-existent pages

The server returns HTTP 200 for a path that does not exist. Search engines will index these pages, diluting your real content. Configure your server to return a proper 404 status code for missing pages.

Got: Status: 200 for /beavercheck-404-test-6uprnh

404 Page Quality ✗ Soft 404 (HTTP 200)

Status Code: HTTP 200

The server returned HTTP 200 for a non-existent path. Search engines will index this page as real content. Configure your server to return HTTP 404 for missing pages.

Favicon & Branding

Action

2 icon(s) detected

FIX

2 icon(s) detected

favicon.ico present at site root

HTML icon links detected

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 Present

✓ PNG Icons Present

✗ Apple Touch Missing

✗ SVG Favicon Missing

✗ Manifest Icons Missing

✗ Multiple Sizes Missing

Web Manifest

Action

Invalid JSON

FIX

Invalid JSON

Manifest contains invalid JSON

Manifest at https://51.la/manifest.json contains invalid JSON. Browsers cannot parse it.

Got: https://51.la/manifest.json

Manifest contains invalid JSON.

Dark Mode Support

Action

No dark mode signals

FIX

No dark mode signals

No dark mode signals detected

Consider adding CSS with @media (prefers-color-scheme: dark) and <meta name='color-scheme' content='light dark'>.

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.

Print Stylesheet

Action

No print styles

FIX

No print styles

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 ✗

Landmark Structure

3 landmarks

REVIEW

3 landmarks

<main> landmark present

No <nav> landmark found

No contentinfo (footer) landmark

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

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

Heading Hierarchy

Action

21 headings, 1 skip(s)

REVIEW

21 headings, 1 skip(s)

No H1 heading found

Every page should have one H1 that describes the page content.

Heading level skipped: H2 → H4 (missing H3)

Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.

H2 App移动统计
H2 App移动统计
H2 全新「屏幕录制」功能上线
H2 全新【屏幕录制】功能上线
H2 信赖升级 - 51LA荣获网站安全认证
H2 信赖升级!
H2 51LA荣获网站安全认证
H2 51.LA网站统计
H2 51.LA网站统计
H4 免费、易用、专业的网站数据统计与营销分析平台 skipped
H2 51.LA灵雀应用监控平台
H2 51.LA灵雀应用监控平台
H2 与用户共建知识社区
H2 与用户共建知识社区
H2 我们的产品
H2 我们的产品
H2 丰富的解决方案，覆盖千行百业
H2 丰富的解决方案，覆盖千行百业
H2 合作伙伴
H2 合作伙伴
H2 友情链接

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

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

Alt Text Quality

Action

6 of 59 images have issues

REVIEW

6 of 59 images have issues

6 image(s) missing alt attribute

Images without alt text are invisible to screen readers.

5 decorative image(s) correctly marked

48 image(s) with good alt text

59 images 48 good alt text 5 decorative 6 missing

Issue	Count
missing	6 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

Link & Button Quality

Action

2 issue(s) across 59 links and 32 buttons

REVIEW

2 issue(s) across 59 links and 32 buttons

2 link(s) with no accessible text

Links without text are announced as raw URLs by screen readers.

Got: /; javascript:;

29 link(s) open in new tab without warning

Add '(opens in new tab)' to link text or aria-label.

Got: https://app.51.la/; https://v6.51.la; https://web.51.la/; https://perf.51.la/?cc=sGJfENsFMGj9; https://support.qq.com/products/400900; https://support.qq.com/products/400900; https://v6.51.la; https://perf.51.la; https://web.51.la; https://web.51.la/service/friend_link (+19 more)

28 link(s) with descriptive text

59 links

2 empty

0 generic text

29 new tab

0 empty buttons

Element	Text	Issue	Suggested Fix
/	(empty)	empty	Add link text or aria-label
https://app.51.la/	App移动统计	new tab	Add '(opens in new tab)' to text
https://v6.51.la	网站统计V6	new tab	Add '(opens in new tab)' to text
https://web.51.la/	网站统计V5	new tab	Add '(opens in new tab)' to text
https://perf.51.la/?cc=sGJfENsFMGj9	灵雀应用监控平台	new tab	Add '(opens in new tab)' to text
https://support.qq.com/products/400900	问题反馈	new tab	Add '(opens in new tab)' to text
https://support.qq.com/products/400900	帮助交流在这里，找�…	new tab	Add '(opens in new tab)' to text
https://v6.51.la	了解更多	new tab	Add '(opens in new tab)' to text
https://perf.51.la	了解更多	new tab	Add '(opens in new tab)' to text
https://web.51.la	了解更多	new tab	Add '(opens in new tab)' to text
https://web.51.la/service/friend_link	查看更多	new tab	Add '(opens in new tab)' to text
https://user.51.la/register?redirect=htt…	立即注册	new tab	Add '(opens in new tab)' to text
https://user.51.la/register?redirect=htt…	立即注册	new tab	Add '(opens in new tab)' to text
https://v6.51.la/	51.la 网站统计V6	new tab	Add '(opens in new tab)' to text
https://web.51.la/	51.la 网站统计	new tab	Add '(opens in new tab)' to text
https://perf.51.la/?cc=sGJfENsFMGj9	51.la 灵雀应用监控	new tab	Add '(opens in new tab)' to text
/topic/51la_prod_dynamic	最新活动	new tab	Add '(opens in new tab)' to text
/help	文档中心	new tab	Add '(opens in new tab)' to text
https://support.qq.com/products/400900	建议与反馈	new tab	Add '(opens in new tab)' to text
mailto:online@contact.51.la	online@contact.51.la	new tab	Add '(opens in new tab)' to text
mailto:online@contact.51.la	online@contact.51.la	new tab	Add '(opens in new tab)' to text
https://xinyong.yunaq.com/certificate?do…	安全认证	new tab	Add '(opens in new tab)' to text
http://www.beian.gov.cn/portal/registerS…	粤公网安备 44010602004893…	new tab	Add '(opens in new tab)' to text
https://beian.miit.gov.cn/#/Integrated/i…	粤ICP备17055553号	new tab	Add '(opens in new tab)' to text
https://v6.51.la/land/4ZVo3Me5SwOq1LON	51LA	new tab	Add '(opens in new tab)' to text
https://xinyong.yunaq.com/certificate?do…	安全认证	new tab	Add '(opens in new tab)' to text
https://user.51.la/activity/invite?cc=6w…	邀请福利	new tab	Add '(opens in new tab)' to text
javascript:;	(empty)	empty	Add link text or aria-label
https://admin.qidian.qq.com/template/blu…	3008049512	new tab	Add '(opens in new tab)' to text
https://admin.qidian.qq.com/template/blu…	3008049513	new tab	Add '(opens in new tab)' to text
https://admin.qidian.qq.com/template/blu…	3008049515	new tab	Add '(opens in new tab)' to text

60 links and buttons have descriptive text

Links without text are announced as raw URLs by screen readers.

/; javascript:;

Why this matters

Links with no accessible text (empty <a></a>, image-only no alt, icon-only no aria-label) are unidentifiable to screen readers.

Source: WCAG 2.1 SC 2.4.4

Add '(opens in new tab)' to link text or aria-label.

https://app.51.la/; https://v6.51.la; https://web.51.la/; https://perf.51.la/?cc=sGJfENsFMGj9; https://support.qq.com/products/400900; https://support.qq.com/products/400900; https://v6.51.la; https://perf.51.la; https://web.51.la; https://web.51.la/service/friend_link (+19 more)

Why this matters

Links with target="_blank" without rel="noopener" leak the originating page's window context — security and UX issue.

Learn more ▾

Without rel="noopener", the new tab can navigate the original tab via window.opener (tab-nabbing attack). Modern browsers default to noopener for target=_blank but only since recent versions. Always set rel="noopener noreferrer" explicitly.

Source: MDN target / OWASP

Color Contrast (Screenshot)

20 text elements analyzed, 0 fail WCAG AA

REVIEW

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

20 pass 1 pass AA only

Show all checked elements (20)

Element	Ratio	Required	FG	BG	Result
h2 App移动统计	20.41:1	3.0:1	#000000	#FAFCFD	Pass
h2 App移动统计	20.44:1	3.0:1	#000000	#FBFCFD	Pass
h2 全新「屏幕录�…	20.44:1	3.0:1	#000000	#FBFCFD	Pass
h2 全新【屏幕录�…	20.44:1	3.0:1	#000000	#FBFCFD	Pass
h2 信赖升级 - 51LA�…	20.44:1	3.0:1	#000000	#FBFCFD	Pass
h2 信赖升级!	20.44:1	3.0:1	#000000	#FBFCFD	Pass
h2 51LA荣获网站安�…	20.44:1	3.0:1	#000000	#FBFCFD	Pass
h2 51.LA网站统计	20.44:1	3.0:1	#000000	#FBFCFD	Pass
h2 51.LA网站统计	20.44:1	3.0:1	#000000	#FBFCFD	Pass
h2 51.LA灵雀应用监…	20.44:1	3.0:1	#000000	#FBFCFD	Pass
h2 51.LA灵雀应用监…	20.44:1	3.0:1	#000000	#FBFCFD	Pass
h2 与用户共建	20.44:1	3.0:1	#000000	#FBFCFD	Pass
h2 与用户共建	20.44:1	3.0:1	#000000	#FBFCFD	Pass
h2 我们的产品	20.44:1	3.0:1	#000000	#FBFCFD	Pass
h2 我们的产品	20.44:1	3.0:1	#000000	#FBFCFD	Pass
h2 丰富的解决方�…	20.44:1	3.0:1	#000000	#FBFCFD	Pass
h2 丰富的解决方�…	20.44:1	3.0:1	#000000	#FBFCFD	Pass
h2 合作伙伴	20.44:1	3.0:1	#000000	#FBFCFD	Pass
h2 合作伙伴	20.44:1	3.0:1	#000000	#FBFCFD	Pass
h2 友情链接	4.31:1	3.0:1	#717887	#FBFCFD	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.

Lighthouse Accessibility Audits

Score 84/100 — 4 failing, 18 passed

REVIEW

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
咨询方案 `div > section.section > div.btn > button`
立即注册 `div.register-now > div.h5-inner > a > button.register-btn`
Copyright © 2002-2026 广州有啦网络科技有限公司 `div#footbar > div.footbar > div.footbar-copyright > div`

These are opportunities to improve the legibility of your content.

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
免费、易用、专业的网站数据统计与营销分析平台 `div.section > div.header-content > div.banner-text > h4.index-animate`

These are opportunities to improve keyboard navigation in your application.

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.section__evaluate-content > div.section > div.item-left > img `div.section__evaluate-content > div.section > div.item-left > img`
div.section__evaluate-content > div.section > div.item-left > img `div.section__evaluate-content > div.section > div.item-left > img`
div.section__evaluate-content > div.section > div.item-left > img `div.section__evaluate-content > div.section > div.item-left > img`

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.

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
幻灯片切换至索引 3 `div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button`
幻灯片切换至索引 4 `div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button`
幻灯片切换至索引 5 `div.el-carousel > ul.el-carousel__indicators > li.el-carousel__indicator > button.el-carousel__button`

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>`

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Buttons have an accessible name

●`[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

●`<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

●Document has a main landmark.

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements have accessible names

○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

○`[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

○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.

○Uses ARIA roles only on compatible elements

○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.

A+

Form Accessibility

No form controls

PASS

No form controls

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.