Accessibility

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Checks

14 PASS 6 REVIEW 4 FIX

Document Language

Action

Missing <html lang> attribute (WCAG 3.1.1)

FIX

Missing <html lang> attribute (WCAG 3.1.1)

Without `<html lang="...">`, screen readers default to the user's system language even when reading content in a different one -- words get pronounced wrong (English text read with French phonetics, etc.). Add a BCP-47 language tag to the <html> root element.

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 ✗

Navigation UX

Action

No navigation patterns

FIX

No navigation patterns

3 navigation landmark(s) detected

Hamburger menu detected (responsive design)

No breadcrumbs, search, or skip link detected

These navigation aids help users orient themselves and find content efficiently, especially on large sites.

Breadcrumbs

Skip Link

Labeled Navigation 3 <nav> element(s)

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.

Landmark Structure

6 landmarks

REVIEW

6 landmarks

<main> landmark present

3 <nav> landmark(s) found

3 of 3 <nav> elements are unlabeled

Multiple navigations need aria-label to distinguish them for screen readers.

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

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

Form Accessibility

2 of 3 controls have issues

REVIEW

2 of 3 controls have issues

1 control(s) without accessible label

Form controls need a <label>, aria-label, or aria-labelledby for screen readers.

Got: <input type="file">

1 control(s) rely on placeholder only

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

Got: <textarea>

1 control(s) properly labeled

3 controls

1 labeled

1 placeholder only

1 unlabeled

Control	Type	Label	Method
input	checkbox		none
textarea	textarea	(Type your Markdown here...)	placeholder only
input	file	(none)	none

Form controls need a <label>, aria-label, or aria-labelledby for screen readers.

Why this matters

Form controls without labels — assistive tech announces 'edit text' with no context; users can't complete forms.

Source: WCAG 2.1 SC 3.3.2

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

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

Mobile-Readable Font Sizes

97% of visible text renders at >= 12 CSS px (3 below threshold)

REVIEW

97% of visible text renders at >= 12 CSS px (3 below threshold)

3 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: <div> 10.0px ("Start with a template"); <span> 10.0px ("Copy"); <span> 10.0px ("File").

404 Error Page

Action

HTTP 404, custom page

REVIEW

HTTP 404, custom page

Correct 404 status code returned

Got: HTTP 404

Custom styled 404 page

404 Page Quality ✓ Custom 404 Page

Status Code HTTP 404 ✓Page Title Markdown Online - Free Markdown Editor & Converter with Live Preview ✓Custom Styling ✓Navigation ✗Homepage Link ✗Search Form ✗

Favicon & Branding

6 icon(s) detected

REVIEW

6 icon(s) detected

favicon.ico present at site root

HTML icon links detected

Apple touch icon present

Multiple icon sizes detected

✓ favicon.ico Present

✓ PNG Icons Present

✓ Apple Touch Present

✗ SVG Favicon Missing

✗ Manifest Icons Missing

✓ Multiple Sizes Present

Dark Mode Support

Dark mode detected

REVIEW

Dark mode detected

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 Not set ✗CSS indicators Detected ✓

Detection limited to meta tags and inline styles.

Heading Hierarchy

25 headings

PASS

25 headings

Multiple H1 headings (2 found)

A page should have only one H1. Multiple H1s dilute the document outline.

H1 Markdown Online Editor for README, Docs, Notes & Export
H1 Welcome to Markdown Online duplicate H1
H2 Features
H2 Markdown Basics
H3 Text Formatting
H3 Links and Images
H3 Code
H3 Blockquotes
H3 Lists
H3 Tables
H2 Write, preview, and export Markdown for real work
H2 Why Markdown Online is easier to reuse
H2 Built for common Markdown tasks
H3 Draft and preview without breaking flow
H3 Export when the document is ready
H3 Keep working without accounts or setup
H3 Move from editor to task-specific tools
H2 What people actually use it for
H2 Start with a ready-made template
H3 README template
H3 Blog post template
H3 Meeting notes template
H3 Documentation template
H2 How to Use This Free Markdown Editor
H2 Frequently Asked Questions

A page should have only one H1. Multiple H1s dilute the document outline.

Why this matters

Multiple H1s blur the page's primary topic — screen-reader users and Google both prefer one H1.

Learn more ▾

HTML5's outline algorithm technically allows multiple H1s within sectioning content, but no browser implements it. In practice: one H1 per page. Use H2-H6 for subsections.

Source: WCAG 2.4.6 / Google Search Central

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

All 1 images OK

PASS

All 1 images OK

1 image(s) with good alt text

1 images 1 good alt text

All images have appropriate alt text.

A+

Link & Button Quality

27 links, 31 buttons — all OK

PASS

27 links, 31 buttons — all OK

27 link(s) with descriptive text

27 links

0 empty

0 generic text

0 new tab

0 empty buttons

All links and buttons have descriptive accessible text.

58 links and buttons have descriptive text

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+

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+

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

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+

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 Markdown Online Edit…	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h1 Welcome to Markdown …	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 Features	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 Markdown Basics	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 Write, preview, and …	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 Why Markdown Online …	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 Built for common Mar…	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 What people actually…	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 Start with a ready-m…	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 How to Use This Free…	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h2 Frequently Asked Que…	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h3 Text Formatting	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h3 Links and Images	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h3 Code	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h3 Blockquotes	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h3 Lists	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h3 Tables	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h3 Draft and preview wi…	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h3 Export when the docu…	21.00:1	3.0:1	#000000	#FFFFFF	Pass
h3 Keep working without…	21.00:1	3.0:1	#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.

Lighthouse Accessibility Audits

Score 92/100 — 2 failing, 20 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.

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
Markdown `div.mx-auto > div.flex > a.flex > span.text-primary`
Editor `div.h-[calc(100vh-14rem)] > div.flex > div.flex > button.flex-1`

These are opportunities to improve the legibility of your content.

Internationalization and localization

If a page doesn't specify a `lang` attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. Learn more about the `lang` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html.light `html.light`

These are opportunities to improve the interpretation of your content by users in different locales.

○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

●`[aria-hidden="true"]` elements do not contain focusable descendents

●Elements use only permitted ARIA attributes

●Document has a `<title>` element

●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

○`[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 a valid value for its `[lang]` attribute

○`<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.

○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.

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