Accessibility

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Checks

19 PASS 2 REVIEW 3 FIX

Web Manifest

Action

Not found

FIX

Not found

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.

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 ✗

Favicon & Branding

Action

4 icon(s) detected

REVIEW

4 icon(s) detected

favicon.ico present at site root

HTML icon links detected

Apple touch icon present

SVG favicon detected — scales perfectly to any size

✓ favicon.ico Present

✓ PNG Icons Present

✓ Apple Touch Present

✓ SVG Favicon Present

✗ Manifest Icons Missing

✗ Multiple Sizes Missing

Dark Mode Support

Dark mode detected

REVIEW

Dark mode detected

Dark-specific theme-color detected

A theme-color with media='(prefers-color-scheme: dark)' adapts the browser toolbar for dark mode.

prefers-color-scheme CSS detected in inline styles

Detection limited to meta tags and inline styles

External CSS files may contain prefers-color-scheme rules not visible to this scan.

Dark Mode✓ Dark Mode Supported

color-scheme meta Not set ✗Dark theme-color #ffffff ✓CSS indicators Detected ✓

Detection limited to meta tags and inline styles.

A+

Landmark Structure

8 landmarks

PASS

8 landmarks

<main> landmark present

5 <nav> landmark(s) found

All <nav> elements are properly labeled

Skip navigation link present

Page Structure — as a screen reader sees it

A+

Heading Hierarchy

25 headings

PASS

25 headings

Single H1 present

H1 Free online math calculators with clear, step-by-step answers
H2 Popular Calculators
H3 Percentage Calculator
H3 Quadratic Equation Solver
H3 Compound Interest Calculator
H3 Triangle Area Calculator
H3 Fraction Calculator
H3 Mean Calculator
H3 Date Difference Calculator
H3 Pythagorean Theorem Calculator
H2 Explore Math Calculators by Category
H3 Basic Math
H3 Fractions & Decimals
H3 Percentages
H3 Geometry
H3 Algebra
H3 Statistics
H3 Finance
H3 Trigonometry
H3 Math Tables
H3 Math Practice
H3 Math Learning Guides
H2 Categories
H2 Explore
H2 Legal & Trust

A+

Heading Text Quality

All 25 heading(s) have substantive, well-formed text

PASS

All 25 heading(s) have substantive, well-formed text

Heading text quality is clean -- no placeholder, length, or styling issues

A+

Alt Text Quality

No images

PASS

No images

No images on this page

No images on this page.

A+

Form Accessibility

All 3 controls labeled

PASS

All 3 controls labeled

3 control(s) properly labeled

3 controls

3 labeled

0 placeholder only

0 unlabeled

Control	Type	Label	Method
#header-search	search	Search calculators, tables, and guides	aria-label
#mobile-search	search	Search calculators, tables, and guides	aria-label
#hero-search	search	Search	for/id

Link & Button Quality

52 links, 3 buttons — all OK

PASS

52 links, 3 buttons — all OK

3 link(s) open in new tab without warning

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

Got: https://github.com/zohaibO7/math-kit; https://x.com/mathkit; https://youtube.com/@mathkit

49 link(s) with descriptive text

52 links

0 empty

0 generic text

3 new tab

0 empty buttons

Element	Text	Issue	Suggested Fix
https://github.com/zohaibO7/math-kit	MathKit on GitHub	new tab	Add '(opens in new tab)' to text
https://x.com/mathkit	MathKit on X (Twitter)	new tab	Add '(opens in new tab)' to text
https://youtube.com/@mathkit	MathKit on YouTube	new tab	Add '(opens in new tab)' to text

52 links and buttons have descriptive text

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

https://github.com/zohaibO7/math-kit; https://x.com/mathkit; https://youtube.com/@mathkit

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

A+

Form Input Types

3 form control(s) checked, no type mismatches

PASS

3 form control(s) checked, no type mismatches

No input-type mismatches detected

A+

Form Input Quality

3 form control(s) checked, no input-semantic issues

PASS

3 form control(s) checked, no input-semantic issues

All form input semantics look correct

A+

Mobile Keyboard & Autofill

No autofill-eligible form controls

PASS

No autofill-eligible form controls

No autofill-eligible form controls (no name/email/tel/address fields)

A+

Document Language

Lang attribute set to "en"

PASS

Lang attribute set to "en"

<html lang="en"> is set and valid

Got: en

A+

Tabindex Anti-Patterns

No explicit tabindex attributes found

PASS

No explicit tabindex attributes found

A+

Iframe Accessibility

No iframes on this page

PASS

No iframes on this page

A+

Tap Target Adequacy

All tap targets meet WCAG 2.5.5/2.5.8 sizing

PASS

All tap targets meet WCAG 2.5.5/2.5.8 sizing

All tap targets meet WCAG 2.5.5 (44x44px) sizing

A+

Mobile-Readable Font Sizes

All 103 visible text node(s) render at >= 12 CSS pixels

PASS

All 103 visible text node(s) render at >= 12 CSS pixels

All text uses legible mobile font sizes (>= 12 CSS px)

404 Error Page

HTTP 404, custom page

PASS

HTTP 404, custom page

Correct 404 status code returned

Got: HTTP 404

Custom styled 404 page

Navigation links present on 404 page

Homepage link present on 404 page

Search form present on 404 page

404 Page Quality ✓ Custom 404 Page

Status Code HTTP 404 ✓Page Title Page Not Found — MathKit ✓Custom Styling ✓Navigation ✓Homepage Link ✓Search Form ✓

A+

PWA Depth

No PWA depth issues detected

PASS

No PWA depth issues detected

A+

Mobile UX Depth

1 mobile-depth signal(s) detected

PASS

1 mobile-depth signal(s) detected

Browser-chrome `theme-color` meta tag present

The page sets `<meta name="theme-color" content="...">`, which Android Chrome uses to tint the status bar and iOS Safari uses for the toolbar background. Brand polish that costs nothing and Just Works.

A+

Color Contrast (Screenshot)

20 text elements analyzed, 0 fail WCAG AA

PASS

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

20 pass

Show all checked elements (20)

Element	Ratio	Required	FG	BG	Result
h1 Free online math cal…	18.42:1	3.0:1	#000000	#EFF0F2	Pass
h2 Popular Calculators	18.42:1	3.0:1	#000000	#EFF0F2	Pass
h2 Explore Math Calcula…	18.91:1	3.0:1	#000000	#F2F3F5	Pass
h2 Categories	18.91:1	3.0:1	#000000	#F2F3F5	Pass
h2 Explore	18.91:1	3.0:1	#000000	#F2F3F5	Pass
h2 Legal & Trust	18.91:1	3.0:1	#000000	#F2F3F5	Pass
h3 Math Tables	18.91:1	3.0:1	#000000	#F2F3F5	Pass
h3 Math Practice	18.91:1	3.0:1	#000000	#F2F3F5	Pass
h3 Math Learning Guides	18.91:1	3.0:1	#000000	#F2F3F5	Pass
title Free Online Math Cal…	19.82:1	4.5:1	#000000	#F9F8F9	Pass
a Skip to main content	18.97:1	4.5:1	#000000	#F4F3F4	Pass
span ∑	18.42:1	4.5:1	#000000	#EFF0F2	Pass
span Math	18.42:1	4.5:1	#000000	#EFF0F2	Pass
span Kit	18.42:1	4.5:1	#000000	#EFF0F2	Pass
a Calculators	18.42:1	4.5:1	#000000	#EFF0F2	Pass
a Tables	18.42:1	4.5:1	#000000	#EFF0F2	Pass
a Practice	18.42:1	4.5:1	#000000	#EFF0F2	Pass
a Guides	18.42:1	4.5:1	#000000	#EFF0F2	Pass
span Menu	18.42:1	4.5:1	#000000	#EFF0F2	Pass
a Calculators	18.42:1	4.5:1	#000000	#EFF0F2	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+

Lighthouse Accessibility Audits

Score 96/100 — 1 failing, 23 passed

PASS

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

Focusable descendents within an `[aria-hidden="true"]` element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn how `aria-hidden` affects focusable elements.

Why this matters

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

Source: MDN Permissions-Policy

Failing Elements
Menu Calculators Tables Practice Guides `div.mx-auto > div.flex > astro-island > div#mobile-menu`

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.

○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

●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 use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●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

●Skip links are focusable.

●Document has a main landmark.

●Deprecated ARIA roles were not used

○`[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

○`<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.

○Image elements have `[alt]` attributes

○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.

○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.

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.