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Accessibility

· 24 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.
SCORE
71
GRADE
C
FIX
7
REVIEW
7
PASS
10
INFO
0
Checks
24
10 PASS 7 REVIEW 7 FIX
D
Heading Hierarchy
Action
19 headings, 2 skip(s)
FIX
19 headings, 2 skip(s)
Critical::
No H1 heading found
Every page should have one H1 that describes the page content.
Warning::
Heading level skipped: H2 → H4 (missing H3)
Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.
Warning::
Heading level skipped: H2 → H4 (missing H3)
Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.
  • H3 info@daelimbelefic.com
  • H3 +86-15011017180
  • H3 Contact us on whatsapp
  • H2 FEATURED PRODUCTS
  • H2 R&D Capabilities
  • H2 Quality Control
  • H2 Company Certifications
  • H2 Team Introductions
  • H2 Our power is numbers
  • H4 PRODUCTS LIST skipped
  • H5 SINGLE PHASE TRANSFORMER
  • H5 DRY TYPE TRANSFORMER
  • H5 SUBSTATION TRANSFORMER
  • H5 PAD MOUNTED TRANSFORMER
  • H5 POWER TRANSFORMER
  • H5 DISTRIBUTION TRANSFORMER
  • H5 FURNACE TRANSFORMER
  • H2 Stay in Touch
  • H4 20245©️ Copyright JIANGSU DAELIM ELECTRIC CO., LTD., All rights reserved skipped

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

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

D
Tabindex Anti-Patterns
Action
0 positive, 13 -1-on-focusable
FIX
0 positive, 13 -1-on-focusable
Info::
tabindex="-1" on naturally-focusable <a>
tabindex="-1" removes an element from the keyboard tab order. Naturally-focusable elements (links, buttons, form controls) become unreachable for keyboard users. (Common false-positive: hidden honeypot fields. Verify the element is genuinely interactive before removing the tabindex.)
Info::
tabindex="-1" on naturally-focusable <a>
tabindex="-1" removes an element from the keyboard tab order. Naturally-focusable elements (links, buttons, form controls) become unreachable for keyboard users. (Common false-positive: hidden honeypot fields. Verify the element is genuinely interactive before removing the tabindex.)
Info::
tabindex="-1" on naturally-focusable <a>
tabindex="-1" removes an element from the keyboard tab order. Naturally-focusable elements (links, buttons, form controls) become unreachable for keyboard users. (Common false-positive: hidden honeypot fields. Verify the element is genuinely interactive before removing the tabindex.)
Info::
tabindex="-1" on naturally-focusable <a id="sm-17884885258986365-1">
tabindex="-1" removes an element from the keyboard tab order. Naturally-focusable elements (links, buttons, form controls) become unreachable for keyboard users. (Common false-positive: hidden honeypot fields. Verify the element is genuinely interactive before removing the tabindex.)
Info::
tabindex="-1" on naturally-focusable <a>
tabindex="-1" removes an element from the keyboard tab order. Naturally-focusable elements (links, buttons, form controls) become unreachable for keyboard users. (Common false-positive: hidden honeypot fields. Verify the element is genuinely interactive before removing the tabindex.)
Info::
tabindex="-1" on naturally-focusable <a>
tabindex="-1" removes an element from the keyboard tab order. Naturally-focusable elements (links, buttons, form controls) become unreachable for keyboard users. (Common false-positive: hidden honeypot fields. Verify the element is genuinely interactive before removing the tabindex.)
Info::
tabindex="-1" on naturally-focusable <a>
tabindex="-1" removes an element from the keyboard tab order. Naturally-focusable elements (links, buttons, form controls) become unreachable for keyboard users. (Common false-positive: hidden honeypot fields. Verify the element is genuinely interactive before removing the tabindex.)
Info::
tabindex="-1" on naturally-focusable <a>
tabindex="-1" removes an element from the keyboard tab order. Naturally-focusable elements (links, buttons, form controls) become unreachable for keyboard users. (Common false-positive: hidden honeypot fields. Verify the element is genuinely interactive before removing the tabindex.)
Info::
tabindex="-1" on naturally-focusable <a>
tabindex="-1" removes an element from the keyboard tab order. Naturally-focusable elements (links, buttons, form controls) become unreachable for keyboard users. (Common false-positive: hidden honeypot fields. Verify the element is genuinely interactive before removing the tabindex.)
Info::
tabindex="-1" on naturally-focusable <a>
tabindex="-1" removes an element from the keyboard tab order. Naturally-focusable elements (links, buttons, form controls) become unreachable for keyboard users. (Common false-positive: hidden honeypot fields. Verify the element is genuinely interactive before removing the tabindex.)
Info::
tabindex="-1" on naturally-focusable <a>
tabindex="-1" removes an element from the keyboard tab order. Naturally-focusable elements (links, buttons, form controls) become unreachable for keyboard users. (Common false-positive: hidden honeypot fields. Verify the element is genuinely interactive before removing the tabindex.)
Info::
tabindex="-1" on naturally-focusable <a>
tabindex="-1" removes an element from the keyboard tab order. Naturally-focusable elements (links, buttons, form controls) become unreachable for keyboard users. (Common false-positive: hidden honeypot fields. Verify the element is genuinely interactive before removing the tabindex.)
Info::
tabindex="-1" on naturally-focusable <a>
tabindex="-1" removes an element from the keyboard tab order. Naturally-focusable elements (links, buttons, form controls) become unreachable for keyboard users. (Common false-positive: hidden honeypot fields. Verify the element is genuinely interactive before removing the tabindex.)
F
404 Error Page
Action
HTTP 429, custom page
FIX
HTTP 429, custom page
Warning::
Unexpected status code: HTTP 429
Expected HTTP 404 but received 429. This may confuse search engine crawlers.
Got: HTTP 429
Info::
Custom styled 404 page
404 Page Quality Custom 404 Page
Status Code HTTP 429 Page Title Just a moment... Custom Styling Navigation Homepage Link Search Form
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
1 navigation pattern(s)
FIX
1 navigation pattern(s)
Info::
Skip navigation link detected
Info::
3 navigation landmark(s) detected
Breadcrumbs
Search
Skip Link Skip link detected
Labeled Navigation 3 <nav> element(s)
Back to Top
Hamburger Menu
Sticky Navigation Cannot reliably detect (CSS-based)
2 of 6 testable patterns navigation patterns detected. Limited navigation support. Consider adding breadcrumbs, search, and skip link.
B
Landmark Structure
5 landmarks
REVIEW
5 landmarks
Info::
<main> landmark present
Info::
3 <nav> landmark(s) found
Warning::
2 of 3 <nav> elements are unlabeled
Multiple navigations need aria-label to distinguish them for screen readers.
Info::
No banner (header) landmark
Info::
No contentinfo (footer) landmark
Info::
Skip navigation link present
Page Structure — as a screen reader sees it
BANNER (missing!) NAV MAIN CONTENTINFO (missing!)

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

B
Form Accessibility
7 of 8 controls have issues
REVIEW
7 of 8 controls have issues
Warning::
7 control(s) rely on placeholder only
Placeholder text disappears on focus and is not a reliable label.
Got: <input type="text" name="form_fields[name]" id="form-field-name">; <input type="text" name="form_fields[email]" id="form-field-email">; <input type="email" name="form_fields[field_367446f]" id="form-field-field_367446f">; <input type="text" name="form_fields[field_4b40358]" id="form-field-field_4b40358">; <input type="text" name="form_fields[field_82faa25]" id="form-field-field_82faa25">; <textarea name="form_fields[field_45479e7]" id="form-field-field_45479e7">; <input type="text" name="full-name-maspik-hp" id="full-name-maspik-hp">
Info::
1 control(s) properly labeled
8 controls
1 labeled
7 placeholder only
0 unlabeled
ControlTypeLabelMethod
#form-field-field_2776c85fileAttach a Filefor/id
#form-field-emailtext(Your Phone Number*)placeholder only
#form-field-field_367446femail(Your Email*)placeholder only
#form-field-field_4b40358text(Your Company Name*)placeholder only
#form-field-field_82faa25text(Your Country*)placeholder only
#form-field-field_45479e7textarea(Your Detailed Requirement*)placeholder only
#form-field-nametext(Name*)placeholder only
#full-name-maspik-hptext(Leave this field empty)placeholder only

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

<input type="text" name="form_fields[name]" id="form-field-name">; <input type="text" name="form_fields[email]" id="form-field-email">; <input type="email" name="form_fields[field_367446f]" id="form-field-field_367446f">; <input type="text" name="form_fields[field_4b40358]" id="form-field-field_4b40358">; <input type="text" name="form_fields[field_82faa25]" id="form-field-field_82faa25">; <textarea name="form_fields[field_45479e7]" id="form-field-field_45479e7">; <input type="text" name="full-name-maspik-hp" id="full-name-maspik-hp">

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

C
Tap Target Adequacy
Action
9 tap target(s) too small or too close together
REVIEW
9 tap target(s) too small or too close together
Warning::
9 tap target(s) too small or too close to neighbors
WCAG 2.5.5 (Level AAA) requires interactive targets to be at least 44x44 CSS pixels; WCAG 2.5.8 (Level AA, added in 2.2) requires 24x24 minimum. Failing targets cause mis-taps for users with motor impairments, large fingers, or shaky hands -- and are a major bounce-rate driver on mobile commerce flows. Lighthouse measures rendered rects + adjacent-element spacing; the failing list is in the Lighthouse 'tap-targets' audit detail panel.
B
Mobile-Readable Font Sizes
94% of visible text renders at >= 12 CSS px (2 below threshold)
REVIEW
94% of visible text renders at >= 12 CSS px (2 below threshold)
Info::
2 text node(s) render below 12 CSS pixels on mobile
Mobile browsers default the root font-size to 16 px; text below ~ 12 px (75% of root) is hard to read without zooming. WCAG 1.4.4 (Resize Text) requires the page to support 200% zoom without loss of functionality -- which most layouts handle, but small base text still costs readability and conversion. Audit which selectors set sizes below 12 px (often footers, fine print, table cells) and bump them to 14-16 px or use rem units that scale with user preferences. Examples: <p> 10.0px ("Email"); <p> 10.0px ("24/7 Customer Support").
C
Favicon & Branding
Action
3 icon(s) detected
REVIEW
3 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::
Apple touch icon present
Info::
Multiple icon sizes detected
favicon.ico Missing
PNG Icons Present
Apple Touch Present
SVG Favicon Missing
Manifest Icons Missing
Multiple Sizes Present
C
Color Contrast (Screenshot)
Action
20 text elements analyzed, 2 fail WCAG AA
REVIEW

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

18 pass 2 fail WCAG AA
p 24/7 Customer Support
2.63:1
#000000
on
#155098
needs 4.5:1 (normal text)
16px · above the fold
a Contact us on whatsapp
2.63:1
#000000
on
#155098
needs 4.5:1 (normal text)
16px · above the fold
Show all checked elements (20)
ElementRatioRequiredFGBGResult
h2 FEATURED PRODUCTS12.82:13.0:1
#000000
#F1C605
Pass
h2 R&D Capabilities12.82:13.0:1
#000000
#F1C605
Pass
h2 Quality Control12.82:13.0:1
#000000
#F1C605
Pass
h2 Company Certificatio…12.82:13.0:1
#000000
#F1C605
Pass
h2 Team Introductions12.82:13.0:1
#000000
#F1C605
Pass
h2 Our power is numbers12.82:13.0:1
#000000
#F1C605
Pass
h2 Stay in Touch12.82:13.0:1
#000000
#F1C605
Pass
title Daelim Belefic: The …18.18:14.5:1
#000000
#ECEFF1
Pass
a Skip to content18.88:14.5:1
#000000
#F1F3F5
Pass
span info@daelimbelefic.c…19.54:14.5:1
#000000
#F5F7F8
Pass
p Email20.26:14.5:1
#000000
#FAFBFB
Pass
span +86-150110171808.16:14.5:1
#000000
#94A5A2
Pass
p 24/7 Customer Suppor…2.63:14.5:1
#000000
#155098
Fail
a Contact us on whatsa…2.63:14.5:1
#000000
#155098
Fail
a Home7.15:14.5:1
#000000
#9E93A2
Pass
a About7.53:14.5:1
#000000
#A8969F
Pass
a Prodetail7.91:14.5:1
#000000
#B1999C
Pass
a Substation Transform…8.53:14.5:1
#000000
#B6A197
Pass
a Single Phase Transfo…9.19:14.5:1
#000000
#B6AA97
Pass
a Power Transformer10.09:14.5:1
#000000
#B6B59E
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 Text Quality
1 heading-text-quality issue(s) detected
PASS
1 heading-text-quality issue(s) detected
Info::
9 heading(s) are all-uppercase (excluding short acronyms)
Headings rendered in all-uppercase are a styling choice that should be done via CSS (`text-transform: uppercase`), not by typing the text in caps. Capitalized text is read letter-by-letter by some screen readers (e.g., "H-E-L-L-O W-O-R-L-D" instead of "hello world"). It's also a soft signal of CMS-migration artifacts where the original lowercase intent was lost.
Got: 9 all-caps heading(s)
A+
Alt Text Quality
All 10 images OK
PASS
All 10 images OK
Info::
9 decorative image(s) correctly marked
Info::
1 image(s) with good alt text
10 images 1 good alt text 9 decorative
All images have appropriate alt text.
A+
Form Input Types
1 input(s) using type=text where a specific type would help
PASS
1 input(s) using type=text where a specific type would help
Info::
Input "form_fields[email]" should use type="email" (currently type="text")
Field name "form_fields[email]" suggests type="email". Wrong type loses mobile keyboard hints, browser autofill, and free format validation. Change to <input type="email">.
A+
Form Input Quality
8 form control(s) checked, no input-semantic issues
PASS
8 form control(s) checked, no input-semantic issues
Info::
All form input semantics look correct
A+
Mobile Keyboard & Autofill
No autofill-eligible form controls
PASS
No autofill-eligible form controls
Info::
No autofill-eligible form controls (no name/email/tel/address fields)
A+
Document Language
Lang attribute set to "en-US"
PASS
Lang attribute set to "en-US"
Info::
<html lang="en-US"> is set and valid
Got: en-US
A
Iframe Accessibility
1/1 iframe(s) missing title; 0 placeholder(s)
PASS
1/1 iframe(s) missing title; 0 placeholder(s)
Warning::
<iframe> missing title attribute (src="")
WCAG 4.1.2: iframes need a title attribute so screen readers can announce what's embedded. Without one, the announcement is just "iframe" -- the user has no way to decide whether to enter or skip.
A+
PWA Depth
No PWA depth issues detected
PASS
No PWA depth issues detected
Info::
No PWA depth issues detected
A+
Mobile UX Depth
1 mobile-depth signal(s) detected
PASS
1 mobile-depth signal(s) detected
Info::
No `<meta name="theme-color">` -- browser chrome falls back to default
Without `theme-color`, Android Chrome's status bar and iOS Safari's toolbar fall back to a generic gray. Adding a single hex color in `<meta name="theme-color" content="#0066cc">` tints them to your brand color across all mobile browsers.
A
Lighthouse Accessibility Audits
Score 92/100 — 3 failing, 25 passed
PASS
92

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
25 div.elementor-element > div.elementor-counter > div.elementor-counter-number-wrapper > span.elementor-counter-number
100 div.elementor-element > div.elementor-counter > div.elementor-counter-number-wrapper > span.elementor-counter-number
SINGLE PHASE TRANSFORMER ul > li > h5 > a
DRY TYPE TRANSFORMER ul > li > h5 > a
SUBSTATION TRANSFORMER ul > li > h5 > a
PAD MOUNTED TRANSFORMER ul > li > h5 > a
POWER TRANSFORMER ul > li > h5 > a
DISTRIBUTION TRANSFORMER ul > li > h5 > a
FURNACE TRANSFORMER ul > li > h5 > a

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
PRODUCTS LIST div.elementor-column > div.elementor-widget-wrap > div.elementor-element > h4.elementor-heading-title
20245©️ Copyright JIANGSU DAELIM ELECTRIC CO., LTD., All rights reserved div.elementor-column > div.elementor-widget-wrap > div.elementor-element > h4.elementor-heading-title

These are opportunities to improve keyboard navigation in your application.

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
Previous slide div.elementor-widget-wrap > div.elementor-element > div.elementor-main-swiper > div.elementor-swiper-button
Next slide div.elementor-widget-wrap > div.elementor-element > div.elementor-main-swiper > div.elementor-swiper-button
Go to slide 1 div.elementor-element > div.elementor-main-swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 2 div.elementor-element > div.elementor-main-swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 3 div.elementor-element > div.elementor-main-swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 4 div.elementor-element > div.elementor-main-swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 5 div.elementor-element > div.elementor-main-swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 6 div.elementor-element > div.elementor-main-swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 7 div.elementor-element > div.elementor-main-swiper > div.swiper-pagination > span.swiper-pagination-bullet

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>`
`[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
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.
`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
`<frame>` or `<iframe>` elements have a title
`<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
No element has a `[tabindex]` value greater than 0
Skip links are focusable.
Document has a main landmark.
Deprecated ARIA roles were not used
`[accesskey]` values are unique
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
`<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 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
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.
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.
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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